JP2938378B2 - Modulation control type AC machine and device using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a modulation control type AC machine.

[0002]

2. Description of the Related Art A conventional AC machine comprises an AC motor and an AC generator, and their structures are different depending on the type. Generally, an AC motor is used for drive control in various industrial facilities, and an AC generator is used for generating electric power using a motor. However, there are differences in the structure, characteristics, and applications of the AC machine, and the type is selected depending on the purpose of use.

[0003] However, existing AC machines have various problems. For example, a synchronous motor has a problem in speed control over a wide range, and an induction motor has a problem in rotation speed fluctuation due to a load on a rotor. The modulation control type AC machine according to the present invention has a close relationship with a conventional AC machine. The principle and operation of the present invention can be rationally explained using the relationship. However, in order to clarify the relationship and the difference, the structure, principle, and problems of the conventional AC machine will be described below.

A conventional AC motor has the same structure as an AC generator, and is represented by a synchronous motor, an induction motor, and a selcin motor. The basic principle is that the magnetic flux generated by the AC power supply is used for controlling the rotational force and the rotational speed. This point is common.

[0005] A synchronous motor uses a rotating magnetic field, and a rotating magnetic field is formed by a DC main magnetic flux that rotates at a synchronous speed proportional to the power supply frequency. The DC electromagnetic force between the DC main magnetic flux and the DC field current of the field winding generates a synchronous rotational force that rotates the rotor at a synchronous speed. However, the rotor has a delay angle with respect to the DC main magnetic flux. In a synchronous motor, an AC power supply and a DC power supply must be separately provided, which is a structural disadvantage. The rotation speed is controlled by changing the power supply frequency, and the synchronous rotation force is controlled by changing the DC field current.

When the power supply frequency is increased to increase the rotation speed, the magnetizing current, the DC main magnetic flux, and the synchronous rotation force decrease. Therefore, it is necessary to increase the power supply voltage to eliminate the disadvantage. In addition, the power supply frequency is reduced to reduce the rotation speed. On the contrary, there is a danger of magnetic saturation due to an increase in the magnetizing current. Therefore, it is necessary to reduce the power supply voltage. Being able to adapt to changes in power supply voltage will increase the size, weight, and efficiency of the synchronous motor.

In the synchronous motor, an alternating magnetomotive force is generated in each phase in proportion to the product of the number of turns of the stator winding and the load current. However, there is no secondary circuit to offset this. Therefore, the armature reaction which generates reactance and disturbs the load current becomes worse. If the alternating magnetomotive force of each phase is combined, a DC magnetomotive force is obtained, and the DC magnetomotive force causes a distortion in the DC main magnetic flux, which causes a demagnetization effect. Further, when the load torque of the rotor is larger than the synchronous torque, there is a problem that the synchronous motor loses its synchronous torque by stopping the rotation due to the synchronization step-out phenomenon. If the DC field current is increased to prevent step-out, the polarization action due to DC excitation causes magnetic saturation. Therefore, the AC power supply increases the exciting current, causing a problem of a decrease in power factor and a rise in temperature.

In the synchronous generator, the generated voltage and its phase are
The generated power must be balanced with the alternating current to be supplied. Therefore, in order to maintain the synchronous speed, a high-precision speed control device is adopted for the prime mover. The generated power is generated based on the lead angle of the rotor. A differential voltage is required between the AC power supply and the synchronous generator. The load current and the magnetizing current of the synchronous generator are supplied to an AC power supply. Thus, the power generation action is achieved. If the direction of the difference voltage is reversed, it acts as a synchronous motor. When the generated power is changed, the generated voltage and its phase change due to the load current and the armature reaction. A circulating current is generated between the synchronous generators operated in parallel, and the generated power is likely to be disturbed due to the synchronizing power.

In the induction motor, the primary winding corresponds to the stator winding of the synchronous motor, so that a rotating magnetic field is generated on the stator in the same manner as the synchronous motor. The primary winding and the secondary winding are similar to the electromagnetic coupling of a transformer, and a load is connected to the secondary winding. Since the load current is supplied from the AC power supply, the structure is simpler than that of the synchronous motor. Primary winding of each phase and 2
Since the load current is proportional to the secondary winding, the alternating magnetomotive forces proportional to the number of turns are equally and mutually offset. Therefore, there is no armature reaction and the reactance which disturbs the load current is eliminated.

When an exciting current flows through each phase of the primary winding and a component of the reactive current, which is the magnetizing current, is synthesized, an equivalent DC magnetizing current is obtained, and a DC main magnetic flux is generated. By combining the reactive secondary current of each phase having the same phase relationship as the magnetizing current,
Similarly, since an equivalent DC current is obtained, it corresponds to the DC field current of the synchronous motor. Therefore, it can be understood that the rotor of the induction motor is rotated by the synchronous torque generated by the same principle as the synchronous motor. It also indicates that an inactive secondary current is required for rotation. Since the effective secondary current of each phase has a phase difference of π / 2 with respect to the magnetic flux generated by the primary winding of that phase, the average value of the AC electromagnetic force proportional to the product becomes zero. Therefore, the effective secondary current has no relation to the synchronous torque.

The induction motor has a secondary voltage and a slip frequency for reducing the frequency thereof by changing the rotation speed by the slip of the rotor. The equivalent DC current decreases due to the decrease in the secondary voltage, and the rotational speed decreases below the synchronous speed due to slippage.
In fact, the rotation of the DC magnetic field due to the slip frequency of the rotor,
Since the rotation of the rotor itself is added, the rotor rotates in the same direction in synchronization with the DC main magnetic flux of the stator. This represents the principle of rotation of the induction motor and has the same principle as that of the synchronous motor. However, the synchronous torque of the induction motor does not mean synchronization with the rotor. The effective load current of the secondary winding is proportional to the mechanical output. There is a difference in rotational speed between the equivalent DC current and the rotor. Since a rotating magnetic field that rotates in proportion to the slip frequency is required for the rotor, a multi-phase winding is used for the secondary winding.
The rotating magnetic field of the rotor rotates in proportion to the slip frequency.

The synchronous torque generated in the induction motor always balances the mechanical load torque of the rotor. If the load torque is increased, the slip increases, the secondary voltage and the reactive secondary current increase, and the synchronous torque increases, so there is no fear of step-out. However, there is a disadvantage that the rotation speed decreases due to an increase in slippage.

If the rotor of the induction motor is forcibly rotated by the prime mover, the slip is in the opposite direction, so that the rotor has an advancing angle and functions as an induction generator. This corresponds to the lead angle of the synchronous generator and shows the same power generation action. Since the rotating magnetic field of the induction generator is generated by the AC power supply, the AC power supply cannot be disconnected. The generated power is controlled by changing the load on the secondary winding, and the rotational force of the prime mover has an effect of changing the lead angle to vary the generated power.

The Selsin motor consists of a transmitter and a receiver of the same structure connected in parallel to each other. Each rotor winding is connected to a common single-phase AC power supply, and the magnetizing current generates an alternating main magnetic flux. Generally, the stator winding is formed of a two-phase or three-phase winding, and forms a parallel circuit.

The two-phase stator windings a and b and the single-phase rotor winding c of the transmitter and the receiver have the same number of turns, and the single-phase AC power supply has a predetermined voltage e having a predetermined frequency of a sine waveform. . The transmitter and the receiver generate the alternating main magnetic flux φ having the same sine waveform in the winding c by the voltage e. When there is no difference voltage between the induced voltages of the windings a and b, the rotor does not rotate. Therefore, they correspond to two equivalent single-phase transformers, and their secondary windings correspond to windings a and b. Assuming that the respective induced voltages are e _a1 and e _b1 ,
In the equivalent single-phase transformer, the voltages e _a1 and e _b1 coincide with each other, and there is no change in the direction.

The transmitter has an inherent characteristic. When the rotor is continuously rotated at a constant speed by an external force, the alternating main magnetic flux φ rotates, so that the angle interlinking the windings a and b is differential. changes in, the induced voltage e _a, e _b is amplitude modulated. Thus the voltage e _a, wave height i.e. the envelope of e _b varies proportionally to the rotational speed. When the rotation speed is sufficiently low compared to the power supply frequency, the peak value is represented by a symmetrical drum-shaped sine waveform.

FIG. 1 shows the waveform of e with respect to e _a and e _b ,
The maximum peak values coincide with each other. The voltages e _a1 and e _b1 are amplitude-modulated by the rotation of the rotor to e _a and e _b . Therefore, the power supply voltage e becomes a single-phase carrier voltage. The voltage e _a and e _b there is a phase difference envelope of its peak value, represents that it is the two-phase amplitude modulation. The two-phase modulated wave voltage is e _a2 , e
if _b2, and the voltage e _a1, e _b1 voltage e _a2, e _b2 amplitude modulated, voltage ea, eb is equivalent to the composite waveform.
An alternating main magnetic flux φ is generated by the magnetizing current of the single-phase carrier power supply. The alternating main magnetic flux has a constant amplitude and alternates at the carrier frequency. The two-phase modulated wave voltages e _a2 and e _b2 of the voltages e _a and e _b distribute the alternating main magnetic flux φ to the windings a and b alternately according to the modulation frequency. However, the magnetizing current and the alternating main magnetic flux did not change,
The reactive power of the power supply is supplied to the receiver without passing through the transmitter, and the transmitter and the receiver rotate synchronously. Further, every half rotation of the rotor, the alternating main magnetic flux φ reverses the direction interlinking the windings a and b. Thus the voltage e _a, e _b is the direction of the induced voltage is inverted every half-wave. With the reversal of the direction, the directions and phases of the carrier wave voltages e _a1 and e _b1 are repeatedly reversed. Figure 1 shows a phase inversion of the voltage e _a, the amplitude change mediocre e _b e _a2, e _b2.

The oscillator is a kind of mechanical modulator that satisfies all the above conditions. Although the modulation is required in the modulation control type AC machine according to the present invention, the modulator can be employed as a mechanical modulator.

[0019] selsyn motor is rotated the transmitter relative to the receiver, since the unbalanced voltage generated by the imbalance angle between the rotor, each phase voltage e _a, e _b are not offset from each other, not The peak value of the equilibrium voltage changes according to the hourglass waveform. Therefore, a reactive circulating current that is inversely proportional to the leakage reactance flows through the two sets of parallel circuits. The resultant reactive circulating current and the alternating main magnetic flux obtained by vectorwise combining these generate a synchronous rotational force excluding the unbalanced angle difference by the AC electromagnetic force. This is the operating principle of the Selsin motor. Unbalanced voltage is changed by the angle difference of the rotor in the transmitter and receiver, smaller than the voltage e _a, the e _b, the synchronous rotation force is a property of small variations. The rotation speed is proportional to the modulation frequency, but has no relation to the power supply frequency. The product of the composite effective circulating current and the voltage e _a and e _b in two sets of parallel circuits, represents the power acts on the transmitter and receiver are offset to become opposite directions. Therefore, the common single-phase power supply has no function of supplying the power and the effective current.
In practice, selcin motors do not provide mechanical power because they are not supplied with power and active current.

In general, the alternating main magnetic flux is provided by combining a positive-phase rotating magnetic field and a negative-phase rotating magnetic field having the same rotation speed and the same magnitude rotating in opposite directions. This is conventional common sense. The two-phase primary winding of a two-phase induction motor corresponds to a single-phase induction motor that generates an alternating main magnetic flux when one phase is excited by a single-phase AC power supply. However, there is no starting torque and the rotor does not rotate. If the rotor is temporarily rotated by the external force, the rotor continuously rotates by the spontaneous rotational force, and the external force is not required. The reason is that the rotation causes a difference between the positive-phase reactance and the negative-phase reactance, and the motor rotates continuously due to the difference between the normal-phase torque and the negative-phase torque. Since the structure of the receiver is similar to this, there is a problem that the spontaneous rotational force interferes with the operation of the Selsin motor. If the spontaneous torque is greater than the synchronous torque, the receiver becomes unstable due to the spontaneous torque. The rotation speed of the selcin motor is limited, and the rotation speed cannot be increased.

The single-phase rotor winding of the receiver corresponds to the DC field winding of a two-phase synchronous motor and has the same structure. However, in a synchronous motor, when the power supply frequency is changed, the rotation speed, the magnetizing current, the DC main magnetic flux, and the synchronous rotation force change. There is no DC magnetic flux in the receiver, the rotation speed is controlled by the transmitter,
There is no relationship between the alternating main flux generated by the AC power supply and the rotational speed. Therefore, since the Selsin motor has its own characteristics and cannot increase the mechanical output, the characteristics and the operation principle are basically different from those of the synchronous motor.

[0022]

SUMMARY OF THE INVENTION An object of the present invention is to provide a new AC machine which improves the above-mentioned drawbacks of an existing AC machine, and to use the same for control of industrial equipment and power generation. The new AC machine is a modulation control type AC machine because a modulator is employed between the AC machine and an AC power supply, and its operation principle will be described below. However, the operating principle is irrelevant to the capacity and is widely used, so that the productivity and power generation efficiency of industrial equipment can be improved. Therefore, it can be used as software technology in industrial equipment.

[0023]

SUMMARY OF THE INVENTION A modulation control type AC machine according to the present invention comprises a modulator for generating a polyphase amplitude modulation voltage from an AC voltage as a carrier voltage supplied from an AC power supply, and a stator. A modulated alternator having a winding and a rotor winding connected to an electrical load, wherein the stator winding generates an alternating main magnetic flux in response to the polyphase amplitude modulation voltage from the modulator. , Wherein the rotor winding comprises a modulated alternator rotated in response to the alternating main magnetic flux.

The modulator includes means for changing a frequency of the amplitude modulation voltage so that a synchronous rotation speed of the rotor winding of the AC machine is changed.

[0025] The modulation alternator includes means for controlling a synchronous torque generated in the rotor winding by controlling the electric load.

The modulator has the same structure as the modulation AC machine.

The modulator comprises a mechanical winding comprising a stator winding connected to the modulated AC machine stator winding and a rotor winding connected to the AC power supply to receive the carrier voltage. A mechanical modulator for generating the amplitude modulation voltage from the carrier voltage on the modulator stator winding by rotating the modulator rotor winding by an external force; Has a modulation frequency proportional to the number of rotations of the modulator rotor winding and generates a rotating constant amplitude alternating main magnetic flux.

The modulator includes means for generating a modulated wave voltage, performing amplitude modulation on the carrier wave voltage supplied from the AC power supply according to the modulated wave voltage, and generating the amplitude modulated voltage.

The modulation rotor winding is single-phase, and the modulator stator winding is two-phase, forming a single-phase mechanical modulator. The modulated AC machine stator winding is two-phase, and the modulated AC machine rotor winding is single-phase, resulting in a single-phase modulated AC machine. The synchronous torque is the load current flowing through the modulated alternator rotor winding through the electrical load such that the modulated alternator rotor winding is rotated in synchronization with the rotation of the modulator rotor winding. And the alternating main magnetic flux generated by the modulation AC machine stator winding.

The three sets of single-phase mechanical modulators connect a single-phase rotor winding to each phase of a three-phase AC power supply and directly connect the three sets of rotors to form a three-phase mechanical modulator. . The three sets of single-phase modulated AC machines have loads connected to a single-phase stator, the three sets of loads become three-phase loads, and the three sets of rotors are directly connected to form a three-phase modulated AC machine.

The three-phase mechanical modulator excites the three-phase modulated AC machine to generate three sets of single-phase alternating main magnetic fluxes, which are generated between a three-phase load current generated in three sets of loads. The three sets of synchronous rotational forces become the composite synchronous rotational force of the direct-coupled rotor.

The three-phase mechanical modulator accommodates three sets of single-phase rotor windings in one rotor and divides a pair of rotors and stators into three equal parts at an angle of 2π / 3. The three-phase mechanical modulator is integrally housed at equal intervals to form an integrated three-phase mechanical modulator. 3 above
A phase modulation AC machine accommodates three sets of two-phase stator windings in one stator, and sequentially divides a pair of stator and rotor into three equal parts at an angle of 2π / 3 at equal intervals. And a three-phase modulation AC machine having an integral structure.

The modulation control type AC machine of the present invention has a stator winding and a rotor winding, and generates a multiphase amplitude modulation voltage from an AC voltage as a carrier voltage supplied from an AC power supply. A modulator, a stator winding, and a rotor winding, a modulation AC machine having a structure for connecting an electric load to the single-phase rotor winding, wherein the stator winding is the A modulating alternating current that generates and rotates an alternating main magnetic flux of an alternating rotating magnetic field in response to the polyphase amplitude modulation voltage from a modulator, and that the rotor winding is synchronously rotated in response to the alternating main magnetic flux. A mechanically coupled load or prime mover to the modulated alternator rotor.

The modulator rotator is rotated by a synchronous torque generated by the modulation AC machine.

When the mechanical modulator and the rotor of the modulating AC machine are directly connected with a certain fixed angle difference therebetween, the synchronous torque generated in the modulated motor becomes an external force for rotating the rotor of the mechanical modulator. Become. A mechanical load or prime mover controls the rotational speed. If the electric load of the modulation alternator is changed, the synchronous torque changes, and the synchronous torque changes the rotation speed. Therefore, the present invention has an operation of simultaneously controlling the synchronous rotation force and the rotation speed by the electric load.

[0036]

The operation of the modulation control type AC machine according to the present invention will be described below.

The structure of the single-phase mechanical modulator and the single-phase modulated AC machine of the single-phase modulation control type AC machine according to the present invention is similar to the transmitter and receiver of the Selsin motor described above. However, the rotor winding of the receiver is connected to an electrical load rather than a single-phase AC power supply. As a result, the mechanical modulator connected to the single-phase power supply and the modulation motor connected to the electric load constitute the single-phase modulation control type AC machine of the present invention.
A mechanical modulator unilaterally supplies power from a single-phase power supply to the load of a modulation motor, and its operation is completely different from a selcin motor.

In the mechanical modulator, a single-phase alternating main magnetic flux is generated by an AC power supply, and as a result, a two-phase induced voltage is generated in a two-phase stator winding to excite the modulated AC machine. In a modulated AC machine, a magnetizing current is synthesized by a two-phase induced voltage to generate a similar single-phase alternating main magnetic flux, an induced voltage is generated in a single-phase rotor winding, and a load current flows to a load. If there is no angle difference between the mechanical modulator and the rotor of the AC machine, the AC machine does not rotate because it is in the same state as the Selsin motor and does not generate a rotational force.

More specifically, in an AC machine, a two-phase stator winding is excited by a combined magnetizing current, and a single-phase rotor winding is excited by a reactive load current having the same phase relationship, so that the stator and the rotor are rotated. The child acts like a pair of AC electromagnets. At this time, the electromagnet of the stator generates an alternating electromagnetic force having the same phase in the direction of the alternating main magnetic flux, and the electromagnet of the rotor generates the same phase in the direction of the winding axis of the single-phase rotor winding. If there is an angle difference between the directions of the pair of AC electromagnetic forces, the attractive force between the two electromagnets indicates an equilibrium action to make the rotor match the direction of the stator. For example, if the rotor is deflected in any direction by an external force, a restoring force acts. Experiments have demonstrated that the restoring force is a synchronous rotational force that maintains its balance.

The component of the reactive load current supplied to the two-phase stator winding does not change the alternating main magnetic flux generated by the combined magnetizing current. Since its structure is the same as that of a conventional single-phase induction voltage regulator or a rotating AC electromagnet, it has the same balancing action. The spontaneous rotational force has demonstrated the equilibrium action of a pair of AC electromagnetic forces.

If the rotor of the mechanical modulator is continuously rotated by an external force, the rotor of the AC machine is synchronously rotated by the balance action, and a new AC motor without slippage is obtained. This indicates the characteristics of the modulation control type AC machine, and the synchronous torque can be arbitrarily increased by changing the load. Thus, all the disadvantages of the characteristics of the selcin motor already mentioned are eliminated.

The load current is supplied from an AC power supply. Since this corresponds to the secondary current of the induction motor described above,
Armature reaction is eliminated. Therefore, there is no reactance that obstructs the load current and no voltage drop due to the reactance, so that the efficiency is improved. The two-phase stator windings of the modulation alternator are π / 2
, But there is no electromagnetic coupling between them. The two-phase stator winding is the two-phase synchronous motor
The single-phase rotor winding corresponds to the DC field winding, but the excitation voltage is completely different.

The modulation control type AC motor is configured by partially combining the structures of a selcin motor, an induction motor, and a synchronous motor.

A new AC motor that performs amplitude modulation by rotating a single-phase rotor winding of a mechanical modulator is hereinafter referred to as a single-phase modulated motor, and the difference from a two-phase synchronous motor will be clarified. The magnetic field generated by rotating the alternating main magnetic flux by the two-phase excitation voltage is called an alternating rotating magnetic field, and the difference from the rotating magnetic field generated by rotating the DC main magnetic flux by the synchronous motor is clarified. The DC main magnetic flux of the rotating magnetic field has a relative relationship of being replaced with the alternating main magnetic flux of the alternating rotating magnetic field.

The alternating main magnetic flux having a constant amplitude rotates in proportion to the modulation wave frequency while alternating at the power supply frequency. But,
Since the frequencies are separated from each other, there is no interference in controlling the power supply frequency (carrier frequency) and the modulation wave frequency. On the other hand, in the rotating magnetic field, the rotation speed and the DC main magnetic flux change at the same time due to the change in the power supply frequency.
This is a fundamental drawback in controlling the synchronous torque and the rotational speed.

If the rotor of the modulation motor is forcibly rotated in the same direction and at the same speed by the prime mover, there is a power generating action.
Thus, the modulation motor has the same characteristics as the synchronous generator. This is hereinafter referred to as a single-phase modulation generator, and the difference from the synchronous generator will be clarified.

The modulation motor and the modulation generator are modulation control type AC machines, and have different structures and operating principles from conventional AC machines. The difference is due to the alternating rotating magnetic field generated by the mechanical modulator, and the point is that a single-phase alternating main magnetic flux having a constant amplitude that alternates according to the power supply frequency of the single-phase AC power supply is generated. By changing the modulation wave frequency of the mechanical modulator without changing the power supply frequency at the same time, the synchronous rotation force generated by the alternating main magnetic flux and the reactive load current and the rotation speed proportional to the modulation wave frequency can be controlled without mutual interference It is that it is. This is the fundamental principle of the present invention.

[0048]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A modulation control type AC machine according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 2 shows the structure of a single-phase modulation control type motor according to one embodiment of the present invention. For example, in a two-phase synchronous motor, a two-phase excitation winding provided with an angle difference of π / 2 is excited by a two-phase AC voltage having a phase difference of π / 2. Hmsin θ ₀ , Hms
If expressed as in (θ ₀ −π / 2), θ ₀ is proportional to the power supply frequency, and Hm is a constant instantaneous value proportional to the amplitude and does not change. Its synthesis magnetizing force, the average value of ^{_{[(Hmsinθ 0) 2 + {}} Hmsin (θ 0 -π /
2)｝ ² ] ^1/2 = Hm. Since Hm does not change, a DC main magnetic flux is generated at a constant instantaneous value. However, the two-phase AC voltage alternately excites the exciting windings, so that the direction of the DC main magnetic flux is changed to become a rotating magnetic field.

On the other hand, in the single-phase modulation motor according to the present invention,
The DC main magnetic flux is replaced with a constant-amplitude single-phase alternating main magnetic flux generated by an AC power supply. The frequency of the alternating main flux is controlled by the rotation of the rotor winding of the mechanical modulator, independent of the power supply frequency, resulting in an alternating rotating magnetic field.

The single-phase rotor winding and the load of the modulation motor having the same structure as that of the two-phase synchronous motor correspond to the DC field winding of the synchronous motor and its DC power supply, respectively. Utilizing the relative relationship, the single-phase rotor winding of the modulation AC machine will be referred to as an AC field winding, and the structural difference will be clarified.

The stator windings 1 and 2 are accommodated in the same slot of the stator core 3, and the field winding 4 is accommodated in the slot of the rotor core 5. The cylindrical rotor having a narrow constant gap between the stator and the stator is fixed to the rotating shaft 6 and supported by bearings 7 and 8 to be freely rotatable. In order to reduce the eddy current generated by the alternating main magnetic flux, the stator core 3 and the rotor core 5 are made of a laminated magnetic thin plate or a compacted magnetic material. 2
In a pole-type modulation motor, two identical distributed windings are arranged at symmetrical positions in the air gap and connected to one another in parallel or in series.
Therefore, the structure corresponds to a structure in which the two-phase secondary winding of the two-pole type two-phase induction motor is replaced with one field winding 4.
As described above, the modulation motor according to the present invention is a completely new AC motor that can be realized by using both the structure of the synchronous motor and the structure of the induction motor.

FIG. 3 is a winding diagram showing an example of the stator windings 1 and 2, and FIG. 4 is a winding diagram showing an example of the field winding 4. FIG. 5 shows the arrangement of each winding as an electric circuit. The load of the field winding 4 is composed of two thyristors 9 and 10 connected in opposite directions.

The three-phase secondary winding of the two-pole three-phase induction motor is
If the field windings are replaced, a single-phase modulation motor using a three-phase stator winding corresponds to a receiver of a three-phase Celsin motor. Therefore, in this case, the mechanical modulator corresponds to the transmitter of the three-phase Celsin motor.

On the other hand, in the three-phase modulation motor, the rotors of three sets of single-phase modulation motors having the structure shown in FIG. 2 are directly connected, and the voltage between the phases of the three-phase power supply is used as each single-phase power supply. Alternatively, a pair of iron cores may be equally divided into three in the circumferential direction of the gap, and three sets of windings may be sequentially housed at equal intervals. Thereby, a three-phase modulation motor having an integral structure is obtained. In this case, the spacing between each winding is reduced to 1/3,
There is no change in the electrical angle of 2π / 3, and the three sets of alternating main magnetic fluxes rotate while maintaining a constant angular difference. In the three-phase modulation motor, the combined synchronous torque generated by the three sets of field windings due to the three-phase load current increases threefold. Since there is no slip, a rotating magnetic field is not required for the rotor, but three sets of synchronous rotating forces are generated between the three sets of alternating main magnetic fluxes in which the reactive load current of each phase is generated. If they are combined, a combined synchronous rotational force can be obtained.

The three-phase load current is supplied by a three-phase AC power supply, and has an electromagnetic coupling of a three-phase transformer as well as a three-phase induction motor when there is no slip. Therefore, although the combined synchronous torque corresponds to the starting torque of the stopped three-phase induction motor, the magnitude thereof differs from that of the three-phase modulated motor in the difference in the delay angle. The load of the induction motor that limits the excessive starting current corresponds to the three-phase load of the modulation motor, and the combined synchronous torque is controlled by changing the three-phase load. The product of the combined synchronous rotational force and the rotational speed becomes an output, and is supplied by three-phase power of a three-phase AC power supply. Single-phase modulated motors have the same relationship with two-phase induction motors.

In general, induction motors are mass-produced and most widely used. Therefore, there is a wealth of technical experience and design material that can be used in the design of the modulated motor of the present invention. Since there is a relationship between the modulation motor of the present invention and the induction motor, the relationship indicates the rationality of the operating principle of the modulation motor and is an indirect technical basis thereof.

The gap between the rotor and the stator is reduced by reducing the number of turns of the field winding and bonding or printing the surface of the rotor, or employing a metal ring corresponding to one turn. As a result, it is effective in reducing the leakage magnetic flux and the exciting current.

If the stator and the rotor are cut at one place and deformed into a flat plate, a linear motor is obtained. Also, if the stator and the rotor are fixed and only the field winding is rotated, a so-called coreless motor can be obtained.

When the waveforms shown in FIG. 1 are generated by the control action and the amplification action of the transformer, the electronic circuit, and the semiconductor element, the modulator becomes a static modulator. This is called a modulation amplifier. The modulation amplifier amplitude-modulates and amplifies the voltage of the AC power supply by using a semiconductor device, and generates the same induced voltage in the two-phase secondary winding of the transformer as that generated by the mechanical modulator. For example, a servo amplifier of a brushless motor is a concept corresponding to this. The modulation amplifier has all the requirements of FIG. 1 and has the same effect as a mechanical modulator.

Next, the principle of operation of the present invention will be described. Although the characteristics of the modulated motor are determined by the synchronous rotation force and the rotation speed, there is a close relationship between the operation principle and operation of the present invention. Since the rotation angle θ (= ωt) is proportional to the frequency, the frequency is represented by θ in the following description to simplify the description and the expression. Assuming that the frequency of the single-phase power supply is θ ₀ and the modulation frequency is θ, the voltage in FIG. 1 has the relationship shown in the following three equations (1). e _a = esin θ = 21/2 Esin θ ₀ sin θ e _b = ecos θ = ^21/2 Esin θ ₀ cos θ e = 2 ^1/2 Esin θ ₀ . . . (1) Here, E is the effective value voltage of the single-phase power supply, and is constant in principle.

In the stator windings 1 and 2 in FIG. 5, the voltages e _a and e _b
As a result, alternating magnetic fluxes φ _a and φ _b are generated. At this time, since the windings 1 and 2 are provided with a spatial angle difference of π / 2, they have no mutual interference action. Further, if the vector synthesized flux phi _a and phi _b, alternate main magnetic flux phi is obtained.

[0063] excitation voltage e _a, the combined voltage of e _b becomes ^{{(esinθ) 2 + (ecosθ} ) 2} 1/2 = e, the magnitude of the exciting voltage e _a described in FIG. 1, the e _b phase It has nothing to do with inversion. Therefore, the directions of φ _a , φ _b , φ and e _a , e _b , e representing the magnitudes are represented on the same vector diagram in FIG. However, FIG. 6 shows the direction of the space vector, and in fact, e _a and e _b are in phase or opposite phase with e, and change with θ.

In general, given by (−1) ^1/2 = j, cos θ = (1/2) (ε ^j θ + ε ^−j θ) sin θ = (1/2) ｛ε ^{j (} θ ⁻ π ^{/ 2)} + ε ^{-j (} θ
^- a relationship of π ^{/ 2)}.} φ is given by the angle difference π / 2 between the windings 1 and 2 as (1/2) [(ε ^j θ + ε ^−j θ) + ε ^{j (} π ^{/ 2)} ｛ε ^{j (} θ ⁻ π ^{/ 2)} + ε ^{−j (} θ ^{- π / 2)}]} is represented by ^{φ = φε j θ (2)} . Here, ε ^j θ in equation (2) is a unit vector that rotates by θ in the direction of the arrow in FIG.
Φ is an alternating main magnetic flux of a constant amplitude alternating at θ ₀ . Therefore, equation (2) is an equation representing the characteristics of the alternating rotating magnetic field. It can be understood that equation (2) does not include a rotating magnetic field rotating at θ ₀ .

Generally, in a synchronous motor, a DC main magnetic flux rotates because there is a phase difference between phases of a power supply voltage. In the modulated motor of the present invention, the alternating main magnetic flux is rotated by the phase difference between the phases of the modulated wave voltage regardless of the power supply voltage. Therefore, the rotation mechanisms are basically the same, but have different rotation speeds.

In the modulation motor according to the present invention, a single-phase power supply supplies electric power which is the product of the synchronous rotational force generated by the alternating main magnetic flux alternating with the carrier frequency and the rotational speed.
In addition, load currents flowing through the excitation winding and the single-phase rotor winding that are proportional to each other generate an alternating magnetomotive force. But,
Since they cancel each other, armature reactions are eliminated. Accordingly, there is no polarization action and magnetic saturation which are disadvantages of the synchronous motor, and the synchronous rotational force can be arbitrarily increased. The modulated voltage alternately distributes its power to each phase of the stator winding. The rotation speed is controlled while repeating this. However, the modulated wave voltage has no function of changing the alternating main magnetic flux and no function of generating electric power. Thus, a single-phase power supply that supplies a single-phase carrier voltage supplies all power.

The AC machine according to the present invention is characterized in that the carrier wave frequency and the modulation wave frequency are separated from each other, there is no interference between them, and they are controlled independently. The alternating main magnetic flux generated by the AC power supply rotates while maintaining a constant amplitude. Synchronous torque and output are controlled by controlling the load on the field winding. Therefore, there is no disadvantage that the alternating main magnetic flux changes. This is the basic principle of the AC machine of the present invention, and is a characteristic unique to a modulation motor (AC machine). If the angle difference between the field winding 4 and the alternating main magnetic flux φ is represented by β,
The induced voltage generated in the field winding 4 is proportional to cosβ. The field winding 4 has a load current power factor angle of α, the load current of the field winding 4 is i ₂ , and the value at which i ₂ is maximum, that is, the effective value is I ₂
In this case, i ₂ is given by the following equation (3). i ₂ = (2) ^1/2 I ₂ sin (θ ₀ −α) cos β (3) where β is a suppressing action that hinders rotation of the rotating shaft when the rotating shaft is rotated by the load torque of the rotor. This is the delay angle generated in the rotor due to The cross-sectional area of the magnetic circuit is A
If the maximum magnetic flux density is represented by B, the product AB is proportional to the maximum value (2) ^1/2 E of e.

FIG. 7 shows the relationship between the conductor of the field winding 4 having the length S and the alternating main magnetic flux φ. Assuming that the number of turns of the winding 4 is N ₂ , the number of conductor portions that link with the magnetic flux is 2N ₂ . Therefore, the AC electromagnetic force f ₀ generated in the winding 4 by Fleming's left rule is perpendicular to the alternating main magnetic flux φ,
A pair of f ₀ sin β = f is a rotational force of the rotor with respect to the rotation axis O. The pair of f ₀ cos β are opposite to each other with respect to the rotation axis O and are offset by each other.

The Fleming's left-hand rule is a special case, in which the current i ₂ flowing through each of the (2N ₂ ) conductors of length S and the alternating main magnetic flux φ are π / There are two spatial angular differences. Therefore, the electromagnetic force f ₀ is (2N ₂ ) Si
_{2 It} is proportional to φ. However, since there is a delay angle β in the relationship shown in FIG. 7, the magnetic flux linking with the conductor portion 4 actually decreases to φcosβ. Also, the electromagnetic force f ₀ is (2
N ₂ ) Si ₂ φcos β. The radius of the gap of the iron core is R
S has a value substantially equal to (2R). Electromagnetic force f in FIG. 7 (= f ₀ sinβ) is a component that becomes a rotating force, becomes _{f ≒ (2N 2) (2R} ) i 2 φcosβsinβ = 2N 2 Ri 2 φsin (2β). Instantaneous value of the magnetic flux density, because of the phase difference of [pi / 2 with respect to sin [theta ₀ of equation (1) becomes Bcosθ _0. Therefore, using the equation (3), the instantaneous value 2Rf of the rotational force τ is obtained.
Is required. ^{_{τ ≒ k 1 (4R 2 N}} 2) ABcosθ 0 {(2) 1/2 I 2 sin (θ 0 -α) xcosβ} sin (2β) = 2k 2 I 2 Bcosθ 0 sin (θ 0 -α) sin ( 2β) cosβ = k ₂ I ₂ B ｛sin (2θ ₀ −α) −sin α｝ sin (2β) cosβ (4) Therefore, T = −k ₂ B (I ₂ sinα) sin (2β) cosβ (5)

T represents the average rotational force in a certain direction, and is combined with the vibratory rotational force to become τ in equation (4). Vibration rotational force is increased vibration frequency when the 2 [Theta] _0, since the rotor has inertial, its vibrations are almost eliminated. Also,
In the equation (4), R, N ₂ , S and A are determined by the structure, and k ₁ and k ₂ are proportional constants. If the carrier frequency is constant, B is constant, so that T is the reactive load current I ₂ sinα and si
n (2β). However, since θ is not included in equation (5), T has no relation to the rotation speed.

The characteristic of the synchronous torque is given by equation (5).
When β = 0, there is no synchronous torque, and as β increases, the synchronous torque increases. However, as is apparent from the equation (3), when β increases, the induced voltage generated in the winding 4 decreases, and the synchronous torque decreases. However, the rate of decrease in rotational force is relatively small. This is because β generated by the same principle as the synchronous motor and its change are sufficiently small. Therefore, the synchronous torque of the modulation motor substantially has the torque characteristic of the synchronous motor.

When the rotor is forcibly rotated by the prime mover synchronously with the modulation motor of the present invention, it acts as a modulation generator and has the same characteristics as the synchronous generator. The prime mover does not change the rotation speed of the modulation motor, and a lead angle is generated by the action of suppressing the rotor that hinders rotation. For example, if the synchronous torque of the modulated generator rapidly decreases, the rotational inertia energy of the rotor becomes the prime mover, and there is a temporary dynamic braking action. The generated power supplied to the AC power supply is proportional to the active current. The active current generates an effective load current in the field winding by the same action as the reactive load current of the field winding.
An effective load current and a reactive load current coexist in the field winding, and they are combined to become the actual load current of the field winding. Therefore, the current of the AC power supply is proportional to the load current of the field winding.
Excluding the excitation current of the AC power supply, the power supply power factor is determined by the load on the field winding and matches the power factor of the load current.

The magnetizing current and the load current of the stator windings 1 and 2 are amplitude-modulated by a mechanical modulator or a modulation amplifier. However, since the alternating main magnetic flux has a constant amplitude, the induced voltage of the winding and the load are changed. The current has a constant amplitude. Therefore, the induced voltage and the load current at which the alternating main magnetic flux φ having a constant amplitude is generated in the winding 4 are not amplitude-modulated. The structure of the mechanical modulator and the modulation motor can be replaced with an equivalent single-phase transformer, but because there is no slip, the load current is proportional to the current from the single-phase power supply and has the same frequency as the power supply frequency . The alternating rotating magnetic field has a function of converting the power of the equivalent single-phase transformer into a mechanical output by the synchronous rotating force in order to rotate the rotor.

The load current of the field winding 4 is proportional to the vector-wise combined load current of the windings 1 and 2 and cancels each other. Thus, there is no armature reaction in the modulated motor or generator. A synchronous motor or a synchronous generator has an armature reaction, which generates a reactance, and a voltage drop caused by the reactance causes a decrease in efficiency. However, since the modulated motor and the modulated generator according to the present invention have no armature reaction, there is no reactance that interferes with the load current. Therefore, the synchronous torque can be increased by controlling the load, and the mechanical output and the generated power can be easily increased.

In the three-phase modulated motor, since the vibration torque of the formula (4) has a phase difference of 2π / 3 by the three-phase power supply, the three sets of vibration torque are canceled out each other.

Since the power supply voltage is constant, the alternating main magnetic flux φ is inversely proportional to the product of the number of turns of the windings 1 and 2 and the power supply frequency.
This is the same relationship as for the transformer. The rotation speed is proportional to the modulation wave frequency and is independent of the power supply frequency. Therefore, in the modulation motor of the present invention, the power supply voltage and the alternating main magnetic flux φ
If the power supply frequency is increased without changing the number of turns, it is necessary to reduce the number of turns of each winding. As a result, the modulation motor can be made smaller and the weight is reduced. However, in this case, the rotation speed does not change in principle, and the synchronous rotation force and the mechanical output by the same load current do not change. This is a characteristic unique to the modulation motor of the present invention. Since the weight is reduced, inertia can be reduced, and responsiveness in speed control is improved. In this case, since the rotation speed of the conventional synchronous motor or induction motor increases, it is harmful to speed control. Although it is possible to use a speed reducer to eliminate the increase in the rotation speed, it is necessary to increase the speed reduction ratio, so that the speed reducer is complicated and the weight is increased.

Although the mechanical modulator has already been described as having the same structure as the modulation motor, the alternating main magnetic flux becomes an alternating rotating magnetic field when an external force mechanically rotates the rotor continuously. The alternating main magnetic flux and the stator winding a are shown in FIG.
, The reactive current of the winding a corresponds to the reactive load current of the winding 4. Stator winding b
Has the same relationship. In FIG. 7, the angle β represents the angle difference between the alternating main magnetic flux φ and the winding 4. In the modulation motor, the winding 4 rotates synchronously with the alternating main magnetic flux φ together with the rotor. Β hardly changes depending on the rotation of the winding 4. However, in a mechanical modulator, the angle difference between the alternating main magnetic flux φ and the windings a and b changes in proportion to the rotation of the rotor. At this time, the rotation angle of the rotor corresponds to β. The reactive current flowing through the windings a and b generates two sets of rotational force according to the equation (5),
(2β) is represented by two sets of cosine waveforms that change in proportion to cos β. However, there is an angle difference of β = π / 2 between the windings a and b, and 2β = π. Accordingly, the two sets of cosine waveforms have opposite phases due to a phase difference of π, and cancel each other.
If the maximum values coincide with each other, the average rotational forces generated in the windings a and b in the mechanical modulator are combined and become zero. This means that the mechanical modulator has no counter-rotating force that becomes a counter force to the external force of the rotor. Since there is no rotor in a modulation amplifier that can be replaced with a mechanical modulator, there is no equivalent to a counter-rotating force due to a reaction force.

In FIG. 2, if only the distributed windings 1, 2 and 4 are targeted, the arrangement structure becomes a shape close to a cage type cylinder. The winding axes of the windings 1 and 2 are perpendicular to each other. Furthermore, the direction of the windings 1, 2 is perpendicular to the rotation axis of the rotor.
Excitation voltage e _a, e _b winding 2 is excited by the alternating magnetic flux generated, it has already been mentioned that the combined magnetic flux becomes an alternating main magnetic flux φ of constant amplitude. If this is shown in FIG. 6, the alternating main magnetic flux φ corresponds to the rotation of the other end on the circumference around the rotation axis O.

In a single-phase modulation motor having three-phase stator windings, if the entire gap circumference is divided into three equal parts and the three sets of windings 1, 2 and 4 are respectively accommodated therein, the spacing between them becomes equal. It is reduced to 1/3 as compared with FIG. The three sets of alternating main magnetic flux φ reduce the spatial angle of 2π / 3 to 1/3, but the electrical angle 2π / 3 does not change. Also, since the three sets of alternating main magnetic fluxes φ maintain an electrical angle of 2π / 3, there is no interference between them. If one set of alternating main magnetic flux φ at a position corresponding to θ = 0 in FIG. 6 rotates １ ／ with the rotor, the next set of alternating main magnetic flux φ will be at the same position corresponding to θ = 0. Further, if the alternating main magnetic flux φ and the rotor continue to rotate so as to repeat the rotation three times, this corresponds to the rotor of FIG. 2 rotating three times. Accordingly, this single-phase modulation motor equivalently shows that the rotation speed is reduced to one third as compared with the rotor of FIG. However, there is no change in the mechanical output because the synchronous torque increases three times.

A two-phase or three-phase induction motor becomes a cage-type induction motor by short-circuiting two magnetic windings. However, since slippage is reduced and the number of rotations is increased, the induced voltage of the short-circuit winding is reduced, so that an abnormal excessive current does not occur. But,
It is difficult to control the rotation speed, and it is also difficult to reduce the rotation speed. In the modulation motor of the present invention,
If the field winding is short-circuited, the leakage reactance acts as a load, so that the load cannot be adjusted. However, the reactive short-circuit current generates a synchronous rotational force, and corresponds to I ₂ sinα in the equation (5). Since the synchronous torque always has a property of being balanced with the load torque of the rotor, the load torque determines the synchronous torque and the reactive load current, and there is no problem that abnormal excessive current is generated. An effective load current proportional to the product of the synchronous rotation force and the rotation speed is supplied from an AC power supply. It is a mechanical modulator or a modulation amplifier that determines the rotation speed.
Therefore, its rotation speed characteristic is different from that of the cage induction motor.
Since no load is connected to the field winding, the structure is simplified, and it can be used for a servo motor having a relatively small capacity. For example, a conventional brushless motor has a relative relationship corresponding to a modulation motor, and a servo amplifier has a relative relationship corresponding to a mechanical modulator or a modulation amplifier. In a modulation motor having a short-circuit winding, even if the rotation speed is changed by a mechanical modulator or a modulation amplifier, the synchronous rotation force does not change, so that the disadvantage of the brushless motor can be eliminated.

The relationship between the conventional motor and generator and the modulation control type motor and generator according to the present invention will be described below.

Relationship with Induction Motor In a two-phase or three-phase induction motor, if a single-phase load is connected to one of the secondary windings, the structure becomes the same as that of the single-phase modulation motor, but it does not rotate. The product of the single-phase load current due to the induced voltage generated in the secondary winding by the rotating magnetic field and the rotating DC main magnetic flux is an oscillating rotational force whose direction is alternately reversed according to the power supply frequency. However, due to the inertia of the rotor, the vibration is almost eliminated. The single-phase load current has no direct current component, and does not generate a continuous torque between the single-phase load current and the main DC magnetic flux. If the induction motor is equivalently considered as a transformer, the induced voltage of the single-phase secondary winding is generated by the rotating DC main magnetic flux. There is no equivalent transformer equivalent to the delay angle. If a load is connected to all phases of the secondary winding and the secondary winding is rotated, a delay angle required for the rotation occurs, and the secondary winding rotates continuously. However, the rotational force decreases due to slippage, and the rotational speed also decreases.

A three-phase induction motor having the same output is driven in parallel by a three-phase modulation motor and a common three-phase power supply. If the exciting currents in the respective phases of the exciting windings match each other, the three-phase induction motor and the three-phase modulation motor generate the same alternating magnetic flux. Therefore, if the exciting windings have the same number of turns, they have the same structure. Become. Further, the three-phase load is composed of three-phase thyristors having the same arrangement relationship with each other. In the modulation motor of the present invention, the rotation speed is controlled by a mechanical modulator or a modulation amplifier. A three-phase induction motor that maintains the same output and the same rotational speed has the same rotational force. Therefore, if the rotational speed is reduced, the rotational force increases, and there is no difference between the drive characteristics and the efficiency of the two.

In the three-phase induction motor, when the three-phase power supply is synchronously opened and closed in each phase, if the switching speed at which the three-phase power supply is continuously opened and closed increases, the excitation voltage and the DC main magnetic flux are represented by intermittent waveforms. An induction motor that generates a rotational force based on an average value of intermittent DC main magnetic flux rotates continuously without any fundamental change in its operation.

FIG. 8A shows the excitation voltage of each phase.
8 (b) and 8 (c) show components corresponding to the three-phase voltage of the power supply frequency and the carrier voltage of the switching frequency included in FIG. 8 (a). The component of the carrier wave voltage is determined by the instantaneous value of the sine wave of the three-phase power supply voltage with the peak value. However, each phase of the three-phase power supply inverts the phase every half-wave, and accordingly, the component of the carrier voltage alternately inverts the phase. The component of the three-phase voltage is smaller than the power supply voltage, and this generates a rotating magnetic field. Therefore, in the induction motor, the rotating force and the rotating speed decrease.

The voltage of each phase shown in FIG. 8 (c) changes according to the instantaneous value of the phase for opening and closing the power supply voltage. The components of the three-phase voltages are combined to generate a DC main magnetic flux having a constant amplitude. Similarly, the components of the carrier voltage of each phase are synthesized,
It becomes a single-phase carrier voltage of constant amplitude. The single-phase carrier voltage is amplitude-modulated by the components of each phase of the three-phase voltage to obtain a voltage waveform (c) of each phase. Therefore, the three-phase voltage component becomes a three-phase modulated wave voltage necessary for amplitude modulation. The voltage shown in FIG. 8C is obtained by synthesizing the phases to generate an alternating rotating magnetic field, and corresponds to e _a in FIG. However, the power supply frequency and the modulation frequency are equal, and the alternating main magnetic flux rotates synchronously with the DC main magnetic flux of the rotating magnetic field.

The three-phase secondary winding of the three-phase induction motor has an angle difference of 2π / 3 in the direction of each phase. A single-phase carrier voltage of constant amplitude is independent of slippage and produces an induced voltage at each phase of the secondary winding having the same frequency as the carrier frequency. However, there is a difference in the magnitude, and the phase is in phase or opposite phase with the single-phase carrier voltage. If the induced voltages of the phases are combined, they cancel each other and become zero. Therefore, if the three-phase load currents are combined, they cancel each other out and no synchronous rotating force is generated by the alternating rotating magnetic field. This indicates that the rotating magnetic field and the alternating rotating magnetic field are simultaneously generated in the three-phase induction motor, but the alternating rotating magnetic field is not used. The opening and closing operation of the power supply satisfies all the conditions necessary for FIG. 1 and thus corresponds to a mechanical modulator.
If each phase of the three-phase secondary winding is connected in series, it becomes an equivalent single-phase winding, and a single-phase load is connected. The structure is already described 3
It becomes a single-phase modulation motor with a phase stator winding. Therefore, the rotor rotates at the same speed as the rotating magnetic field of the three-phase power supply,
The DC main magnetic flux of the rotating magnetic field has no function of generating an induced voltage in the secondary winding. This indicates that the induction motor does not use a rotating magnetic field. No slippage occurs because it is used as a single-phase modulation motor. Furthermore, if one thyristor is used as a single-phase load, the DC component of the rectified current corresponds to the DC field current of the synchronous motor, and the AC component corresponds to the AC field current of the modulation motor. Therefore, although the induction motor is shared by the synchronous motor and the single-phase modulation motor, there is no difference in rotational speed between the rotating magnetic field and the alternating rotating magnetic field. The two sets of synchronous torques generated in the rotor are combined in the same direction to become a combined synchronous torque of the rotor.

Given the above assumptions, it will be appreciated that the operating principle is closely related to induction motors, synchronous motors and modulation motors. The relationship indirectly demonstrates that the principle of a modulated motor is reasonably valid. Actual modulation motors can use a mechanical modulator or a modulation amplifier to control the rotational speed over a wide range. Therefore, irrespective of the rotating magnetic field, the alternating main magnetic flux and the synchronous rotating force can be increased using only the alternating rotating magnetic field.

Relationship with Selsin Motor The Selsin motor has a close relationship with each other, with the transmitter and receiver having the same structure corresponding to a mechanical modulator and a modulation motor, respectively. However, there is a difference in the structure because the electric load of the modulation motor corresponds to the single-phase AC power supply of the receiver.
In a Selsin motor, a transmitter and a receiver are excited by a common single-phase power supply to generate the same alternating main magnetic flux. The difference voltage is smaller than the induced voltage generated in each stator winding, and varies with the rotation speed. In addition, there is a disadvantage that the synchronous rotational force is small and varies with the rotational speed. Further, there is a disadvantage that the rotational speed becomes unstable because a spontaneous rotational force is generated and interferes with the synchronous rotational force, and the reason has already been described. Therefore, the rotation speed cannot be increased. Since the mechanical output cannot be increased with the Selsin motor, the purpose is to transmit the mechanical deviation angle, and there is no application as an AC motor capable of increasing the synchronous rotation force.

On the other hand, the modulation motor according to the present invention has a new use as an AC motor capable of increasing the synchronous rotation force by changing the load on the field winding. The rotation speed is controlled by a mechanical modulator or a modulation amplifier. Therefore, it is a dedicated motor that can control the synchronous rotation force and the rotation speed in a wide range. It features a new principle that eliminates the disadvantages of synchronous motors and induction motors, and modulation motors have their own principles and characteristics.

If the load on the field winding is short-circuited, it becomes a power selcin, and the disadvantage of the selcin motor is eliminated. It has already been mentioned that the energy required to control a mechanical modulator or a modulation amplifier is independent of the synchronous torque. Since the input energy required for the control is small, it has a new use as a continuously variable transmission or a power servomotor. Although the synchronous torque increases in proportion to the mechanical output of the rotor, the synchronous torque and excessive short-circuit current do not occur at the time of stop because of the balance action. Since there is almost no armature reaction and the reactance obstructing the load is reduced, the efficiency is improved and the synchronous torque can be increased. Two identical induction motors rotate synchronously if the secondary windings are connected in parallel. Acts as a power cell synth. However, with two induction motors, there is a rotational force interference between the rotors, and it is difficult to control the rotational speed. When the rotational speed is reduced by the excitation voltage, there is a disadvantage that the rotational force is reduced. The power servo motor of the modulation motor does not have such a disadvantage, and has an improvement effect that the synchronous rotation force of the servo motor can be significantly increased.

FIG. 9 shows a case where the rotor of the mechanical modulator 11 is rotated at a constant speed by an external force, and the modulated motor 12 rotates the mechanical load 13 in synchronization with the rotation. At this time, the modulation control type electric motor shows a constant rotation speed characteristic. For example, train,
An automobile, a machine tool, or the like represents the mechanical load 13, and the structure differs depending on the application. In the electric circuit, the windings a and b of the mechanical modulator 11 and the windings 1 and 2 of the modulation motor 12 are connected in parallel with each other. Since the external force has the same relationship as that of the Selsin motor, the manual operation for applying the external force or the motor is omitted and not shown in the drawings.

In the excitation winding c of the rotor 14, an induced voltage generated in the two-phase windings a and b of the mechanical modulator 11 excites the two-phase windings 1 and 2 of the modulation motor 12. Therefore, rotor 1
5, a single-phase winding 4 generates a constant single-phase voltage.
A circuit typified by the thyristors 9 and 10 connected to the load becomes a load. The gate voltage of the thyristor is controlled by the phase control circuit 17.
Is controlled to change the load current. Since the load current has no effect of changing the rotation speed, the constant rotation speed characteristic is maintained. Here, since the windings c and 4 rotate, a slip ring for supplying power to the AC power supply 16 and the thyristors (loads) 9 and 10 is required, but is not shown in the drawing.

FIG. 9 is modified so that the rotating shafts of the rotors 14 and 15 are directly connected except for the external force of the mechanical modulator 11. FIG.
Shows the structure schematically. Here, if the phase control circuit 17 keeps the load current by the thyristors 9 and 10 constant, a constant rotational force characteristic is achieved. The constant load current generates a constant synchronous rotation force in the modulation motor 12 and becomes an external force of the mechanical modulator 11, but has no relation to a change in the rotation speed of the rotors 14 and 15. The synchronous torque has an effect of always balancing with the load torque of the mechanical load 13.
Maintain a constant load torque. In addition, the product of the load rotation force and the rotation speed becomes the output of the mechanical load 13. Therefore, if the mechanical load is changed, the rotation speed changes without changing the load rotation force and the synchronous rotation force, and there is no action to obstruct the change. Therefore, the modulation control type electric motor shown in FIG. 10 has a constant rotation force characteristic in which the rotation speed changes but the rotation force does not change.

In the modulation control type motor shown in FIG.
The synchronous torque is controlled by changing the load current.
In the modulation control type electric motor shown in FIG. 10, the thyristors 9 and 10 change the load current to control the synchronous rotational force and the rotational speed at the same time. As described above, the modulation motor is based on two types of characteristics: the constant rotational speed characteristic and the constant rotational force characteristic, which are different from each other. Further, since the mechanical modulator 11 unilaterally supplies the power from the AC power supply 16 to the modulation motor 12, the mechanical modulator 11 and the modulation motor 12 need to have the same power capacity.

There is a difference in drive characteristics between the modulation control type motors shown in FIGS. 9 and 10, and the main features will be described. (1) The thyristors 9 and 10 have an inherent action of changing the reactive load current proportional to the synchronous torque when the effective load current proportional to the supplied power is controlled. The combined current becomes the actual load current, and as a result of the control, the current power factor of the AC power supply 16 changes. However, the characteristics are the same as in the case of an induction motor in which the output is controlled by changing the supply power and rotational force by a thyristor connected to the secondary winding. doing. (2) In the modulation control type motor shown in FIG. 9, the change in the load torque of the mechanical load 13 changes the delay angle of the rotor 15 and changes the output of the modulation motor 12. But,
In the modulation control type electric motor shown in FIG.
The difference between the angles 15 and 15 becomes the delay angle for generating the output, so that it is necessary to provide a slight delay angle in advance. The reason why the delay angle is made sufficiently small is to substantially eliminate the armature reaction. (3) In the modulation control type motor shown in FIG. 9, if the load torque of the mechanical load 13 is significantly increased, the motor loses balance with the synchronous torque and has a disadvantage of step-out. However, the modulation control type electric motor shown in FIG. 10 does not have a step-out defect because it maintains a constant synchronous rotational force having a constant rotational force characteristic. (4) The modulation control type motor shown in FIG. 10 has the same drive characteristics as a DC series motor having a constant rotational force characteristic.

Modulated motors having constant torque characteristics have applications in constant torque driving systems such as AC trains, automobiles, cargo handling machines, hoists, and machine tools. Since there is no brush or commutator of the DC series motor having a constant rotation force characteristic, the reliability of severe work can be improved.

Modulated Modulation Motor In FIG. 9, the mechanical modulator 11 and the modulation motor 12 have the same structure and rotate synchronously with each other. Therefore, the electric circuit is modified to connect the mechanical modulator 11 and the modulation motor 12 with each other. If they are commonly used as a single unit, the mechanical modulator 11 can be omitted, and the structure can be simplified. A modulation motor having an integral structure is referred to herein as a single-phase deformation modulation motor.
Hereinafter, the difference from the modulation control type motor shown in FIG. 9 will be clarified.

The rotor winding 4 shown in FIG. 9 is directly connected to the AC power supply 16 to function as an exciting winding, and the two-phase windings 1 and 2 function as field windings. Thyristors 9 and 10 are connected as loads to each phase of the two-phase winding, respectively, and constitute two sets of loads. The deformation modulation motor characterized by the common use has a problem that a constant delay angle cannot be generated in the rotor with respect to the alternating main magnetic flux. Therefore, in equation (5), β = 0, and there is no synchronous torque, and the rotor does not rotate. If the thyristor is controlled to keep the ratio of the components of the reactive load current flowing through the windings 1 and 2 slightly different from each other and keep the ratio constant, the vector of the combined reactive load current changes by a certain angle. Therefore, a spontaneous rotational force is generated in a direction in which the angle becomes a constant delay angle, and the rotor continuously rotates. However, in order to eliminate the armature reaction, the delay angle needs to be sufficiently small.

In the modulation control type motor shown in FIG. 9, the angle difference between the rotors 14 and 15 is used as a delay angle.
In the modified modulation motor, a change in the direction of the combined reactive load current is used as a delay angle with respect to the alternating main magnetic flux instead.
Equation (5) shows the same relationship. For example, the rotational force at which the reactive load current of the secondary winding is generated in the rotor of the single-phase induction voltage regulator corresponds to the spontaneous rotational force. Therefore, the principle of generation of the spontaneous rotation force is verified by this. However, since the induction voltage regulator has only one secondary winding, the rotation of the rotor reduces the induced voltage of the secondary winding and the reactive load current. There is a difference in characteristics from the deformation modulation motor in that the rotor does not rotate continuously.

The single-phase modified modulation motor has the same constant rotational force characteristics as the modulation control type motor shown in FIG. 9, but in order to change its synchronous rotational force, the thyristor uses the reactive load current of the windings 1 and 2. , It is necessary to change the magnitude of the combined reactive load current without changing the ratio. In the three-phase modified modulation motor, each phase of the three-phase AC power supply is connected as an AC power supply 16 to the excitation windings of the rotors of three sets of single-phase modified modulation motors, and a combined synchronous rotational force is generated. Three sets of single-phase rotor windings and three sets of 2
When the phase stator windings are used, they are housed in a pair of rotors and stator iron cores, and are sequentially arranged at equal intervals to obtain an integrated three-phase deformation modulation motor. In a single-phase or three-phase modified modulation motor, the excitation winding is
Even if the phase field winding is replaced on the rotor side, there is no difference in the characteristics. Thus, two types of motors having different structures can be considered as the deformation modulation motor.

When the rotor of the single-phase or three-phase modified modulation motor is forcibly rotated by the prime mover, it exhibits a power generating action and functions as a single-phase or three-phase modified modulation generator.

Modulated Generator and Modulated Modulator In a modulated motor having a constant rotational speed characteristic shown in FIG. 9, the synchronous rotational force and the load rotational force of the rotor are always balanced in opposite directions.
Therefore, if the synchronous rotational force is rapidly reduced, the rotational inertia energy of the rotor and its mechanical load 13 acts as a prime mover. A lead angle is temporarily generated to show the dynamic braking action,
The braking power is recovered by the AC power supply. In this case, there is no change in the rotation direction, but since the rotational force of the prime mover is larger than the synchronous rotational force, the lag angle changes to an advance angle.

If the mechanical load 13 of the modulation control type motor shown in FIG. 9 is replaced with a prime mover, and the prime mover forcibly rotates the rotor in the same direction of rotation, the motor becomes a modulated generator.
This is because the prime mover generates a lead angle. The generated power is automatically supplied to the AC power supply and acts in the same manner as the braking power. In the synchronous generator, the power supplied by the difference voltage between the AC voltage generated by the DC field current and the AC power supply voltage fluctuates. However, such a differential voltage does not exist in the modulation generator of the present invention that is excited by an AC power supply, and has the same relationship as that of the induction generator. If the rotational force of the prime mover fluctuates, there is a disadvantage that the lead angle changes and the supplied power fluctuates. Therefore, in order to maintain the stability of the generated power, it is necessary to employ an automatic constant speed control device for the prime mover.

In the case of the modulated motor or the modified modulated motor having the constant rotational force characteristic shown in FIG. 10, when the mechanical load 13 is directly connected to the motor and the rotor is rotated in the opposite direction,
The lag angle becomes the lead angle as it is, and acts as a modulation generator. Also, even if the prime mover is rotated in the same direction so that the advance angle is generated in advance by reversing the angular relationship between the rotors,
The same action acts as a modulation generator. In this case, the rotation speed has a unique characteristic that is determined by the prime mover. If the prime mover maintains a constant rotation speed, it will have a constant rotation speed characteristic. However, since the advance angle exists in advance, it is different from the above-described modulation generator having the constant rotation speed characteristic in which the advance angle changes due to the synchronous rotation force. The generated power can be controlled over a wide range by changing the load current over a wide range using a thyristor connected to the field winding.

In general, since a motor has a large speed fluctuation rate,
A modulation generator or a modified modulation generator having a constant rotational force characteristic rotated by a prime mover fluctuates in modulation wave frequency and rotation speed. However, since the preset advance angle is kept constant between the modulation generator and the modified modulation generator having constant rotational force characteristics, any generated power that fluctuates is also supplied directly to the AC power supply as long as the prime mover has rotational force. Is done. Although the rotation speed fluctuates, the prime mover does not need an automatic constant speed control device, there is no armature reaction, and there is no voltage drop due to reactance and reactance. Power generation efficiency is improved. For example, in a conventional non-polluting power plant that uses tidal power, wind power, solar heat, and exhaust heat and exhaust pressure of a power plant as well as a power plant, a remarkable speed fluctuation of a prime mover becomes a problem. Although the total amount of pollution-free energy is extremely abundant, the power generation efficiency cannot be improved with the synchronous generator due to the remarkable fluctuation of the energy density. When the energy density is low, it cannot be used because the prime mover cannot maintain the synchronous speed. A single-phase or three-phase modulation generator or a modified modulation generator having a constant torque characteristic can eliminate the disadvantages, and the development of a pollution-free power plant is facilitated. All the fluctuating non-polluting energy is converted into electric power to increase the total power generation amount, thereby improving power generation efficiency. In addition, there is an economical effect that the automatic constant speed control device of the prime mover required for the synchronous generator can be omitted, and the structure is simplified.

It has already been mentioned that modulation motors and induction motors have essentially the same efficiency in principle. Therefore, the difference in the efficiency between the modulation generator and the induction generator or the synchronous generator is small. The capacity of the modulation generator and the modified modulation generator has no relation to the operation principle, and the efficiency is improved because there is no armature reaction. Thus, the disadvantages of synchronous generators can be eliminated when employed in hydro or thermal power plants. In addition, the thyristor connected to the field winding, which is necessary for controlling the generated power, has a small loss at the time of energization, so that its effective capacity is reduced. In a conventional hydroelectric or thermal power plant, an automatic constant speed control device is used for the prime mover, but this can be omitted, so that the structure is simpler than that of a synchronous generator. Even when the generated power is supplied to power systems having different power supply frequencies, there is no need to change the rotation speed of the prime mover. Generally, in a pumped storage power plant, a synchronous generator is rotated in the reverse direction and used as a synchronous motor.
At this time, the water wheel becomes a water pump. However, there is a disadvantage that the amount of pumped water cannot be controlled by changing the rotation speed. The modulation generator or the modified modulation generator having the constant rotation force characteristic is also used as the modulation motor or the deformation modulation motor, and the synchronous rotation force is controlled by the thyristor connected to the field winding. The pumping amount can be controlled over a wide range by changing the rotation speed by the synchronous rotation force. If the effective load current and reactive load current of the field winding are controlled separately,
The so-called vector control type induction generator and the induction motor have the same operation. As described above, the modulation generator or the modified modulation generator having the constant torque characteristic has a unique characteristic different from the characteristic of the synchronous generator. This simplifies the structure of the power plant and can be used to improve power generation efficiency.

[0108]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A conventional AC machine has a fundamental defect in its operation principle, and often hinders an improvement in the performance of industrial equipment employing the AC machine. Modulation-controlled AC machines can eliminate such disadvantages. However, it is difficult to sufficiently clarify the effects of the present invention simply by describing the structure. Therefore, the relationship with the existing technology, the differences, and the effects of the invention will be specifically described below with reference to typical embodiments.

(A) Industrial Robot Conventional industrial robots often employ servo amplifiers and brushless motors as AC servo motors. Brushless motors consist of synchronous motors, and in many cases use permanent magnets for their DC field. In the servo amplifier, when the rotation speed is increased by changing the frequency, the magnetizing current, the DC main magnetic flux, the synchronous rotation force, and the output of the synchronous motor decrease. Conversely, if the rotation speed is reduced, there is a risk of magnetic saturation. A mechanical modulator or modulation amplifier corresponds to a servo amplifier. The modulation motor maintains a constant alternating main magnetic flux and can control the rotation speed by changing the modulation frequency. Therefore, the disadvantages of the brushless motor can be eliminated.

In the modulation motor having the constant rotation speed characteristic shown in FIG. 9, the synchronous rotation force is controlled by the thyristor connected to the field winding, and the driving characteristics are eliminated by eliminating the armature reaction and the reactance which are disadvantages of the synchronous motor. Has been improved. If the power supply frequency is increased without changing the magnitude of the alternating main magnetic flux, it is necessary to reduce the number of turns of each winding. Therefore, weight, inertia, and size can be reduced at the same time, and the speed control during speed control can be improved. Also, the size of the modulation amplifier as well as the mechanical modulator can be reduced, and the weight can be reduced.

The modulation motor and the modified modulation motor having the constant rotation force characteristic shown in FIG. 10 have no problem of step-out, and the synchronous rotation force can be easily increased by changing the load of the field winding. The rotation speed varies depending on the synchronous rotation force and the mechanical load 13 of the rotor, and corresponds to the drive characteristics of a DC servomotor of a DC servo. However, since there is no brush and commutator, reliability can be improved.

A conventional so-called extreme operation robot for remote control has a problem in quick response control due to an increase in its own weight due to the addition of a mobile motor and a sensory engine. Therefore, by using a modulation motor or a modified modulation motor with an increased power supply frequency, its own weight can be reduced without changing the rotation speed and the output, and its disadvantage can be eliminated.

Since the conventional servo motor employs a synchronous motor or an induction motor, there is a certain limit in improving the performance of the servo motor. The modulation motor or the modified modulation motor according to the present invention, beyond its limit, enables further miniaturization and helps to improve the performance of the servo motor by reducing the inertia. For example, an artificial satellite needs to reduce its own weight and improve its reliability. Adopting a servo motor based on this new concept has an improvement effect.

(B) AC train Generally, a train needs to control a wide range of speed and tractive force, so a DC series motor is used for a DC train. However, brushes and commutators pose reliability problems for severe control. In an AC train, the driving characteristics of the induction motor are problematic.
If a single-phase or three-phase modulation motor or a modified modulation motor having a constant rotational force characteristic shown in FIG. Can be used as a servo.

Since the synchronous torque has no relation to the rotational speed,
All the braking power can be recovered to the AC power source by using the synchronous rotation force that does not change until the vehicle stops, and the power usage efficiency improves.
Further, by increasing the power source frequency and making the motor smaller and lowering the vehicle height, tunnel construction of a subway can be simplified. The frequency of the modulated wave and the number of periods thereof are proportional to the speed and the traveling distance of the train. Therefore, it can be used for controlling the speed of the train by the program control and determining the approaching stop position. For example, in a Shinkansen train, the structure and electric circuit are simplified by replacing the conventional DC motor with the modulation motor according to the present invention, and the weight of the train can be reduced. If a modified modulation motor is employed, the weight can be further reduced without a mechanical modulator or a modulation amplifier. However, in that case, the speed of the train is 2
The ratio is controlled so that the ratio of the reactive load current of each phase of the phase field winding is constant, and is controlled by changing the magnitude of the combined reactive current.

FIG. 11 is a block diagram showing an example of a control system of an AC train. But each part is
Since they correspond to the respective parts in FIG. 10, the same numbers are used. In this case, 13 is an AC train. 10 and 11, the phase control circuit 17 is provided with thyristors 9 and 1.
If the load current is controlled by 0, the modulation motor 12 changes the synchronous torque. Since the rotor 15 is directly connected to the rotor 14 and the synchronous rotational force becomes an external force of the mechanical modulator 11,
The speed of the AC train 13 is controlled by changing the modulation frequency by the mechanical modulator 11. Since the synchronous torque balances the torque of the mechanical load 13, the load torque determines the speed of the AC train. FIG. 11 is a control system diagram. Therefore, if the synchronous rotation force is changed in the constant rotation force characteristic, the speed of the mechanical load 13 changes, and the product thereof corresponds to the output of the AC train. In FIG. 11, except for an arrow indicating control from the modulation motor 12 to the mechanical modulator 11, a block diagram showing the constant rotation speed characteristic of FIG. 9 is obtained.

If the principle of AC driving of a train is used in an elevator, a cargo handling machine, a hoist, or the like, the lag angle becomes a leading angle due to the reversal of the rotation direction. Therefore, the load becomes the prime mover, and the generated power is recovered by the AC power supply, and no power loss occurs. The speed, together with its output and generated power, is controlled by a thyristor. Vector control induction motors used in rolling mills, paper machines, large machine tools, etc. are a type of power servo,
Controlled by thyristor. However, the control computer has a drawback that the electronic circuit and the structure are complicated. In the case of the modulation motor or the modified modulation motor, if the effective load current and the reactive load current of the field winding are controlled separately, it corresponds to vector control, has the same function, and can simplify the structure. Since there is no disadvantage of step-out as well as armature reaction, drive characteristics are improved and efficiency is improved. However, when it is necessary to maintain a precise constant rotation speed, an automatic constant speed control device is required for the thyristor to maintain a constant modulation frequency of the constant rotation speed characteristic or a constant rotation speed of the constant rotation force characteristic. Become. Generally, there are many industrial facilities that require the drive characteristics of an AC train, and their uses are few. Electric vehicles, water pumps, conveyors, and the like are examples.

(C) Linear motor type AC train In an AC train, problems such as wheel slippage which limits an increase in speed and constant maintenance work required to prevent failure of the overhead line become a problem. If the deformation modulation motor is transformed into a linear motor, all the disadvantages can be eliminated.

An iron core of a mechanical modulator having the same structure as that of the deformed modulation motor is cut at one place and developed in a plane. If a number of rotors of the same structure are placed on the track in contact with each other and the stator is fixed to the lower surface of the train via a narrow constant gap, the single-phase mechanical modulator becomes a single-phase linear motor. Become. FIG. 12 shows the arrangement, and the delay angle is not shown in the drawings because it is sufficiently small. Excitation winding c of rotor
Are all connected in parallel and further connected to a single-phase AC power supply. The b winding cut with the stator is denoted by b / 2. Further, the loads on the two-phase field windings a and b of the stator are omitted, and the two sets of thyristors 9 and 10 are not shown in the drawing. When the reactive load currents flowing through the windings a and b are combined, the reactive load current corresponds to the reactive load current of the winding 4 in FIG.
The angle difference β in the equation (5) is maintained.

Since the iron core is deformed flat with the center as a fulcrum, the windings a, b, and c each have the same pair of windings each having a two-pole structure and the magnetic fluxes thereof change their angles in opposite directions. As a result, they are all perpendicular to the plane of the gap.
The alternating main magnetic flux φ is generated by the winding c, and there is no change in the relative relationship between the induced voltages generated in the pair of windings a and b by the closed magnetic path. In FIG. 7, a pair of f ₀ acting in the opposite direction changes the angle by π / 2 in the opposite direction, so that they are actually in the same direction. Therefore, they are combined into 2f ₀ , and 2f ₀ acting in the direction parallel to the gap
Is the thrust of the train.

Further, between the iron cores of the windings c and the windings a and b, the alternating main magnetic flux φ generates an attractive force in a direction perpendicular to the air gap by the same action as the AC electromagnet. Since the suction force is combined in the same direction as the weight of the train, it has an effect of preventing the train from floating. The sinusoidal waveform in FIG. 12 indicates the density distribution of the alternating main magnetic flux φ in the air gap, and the c main winding is sequentially switched according to the position of the traveling train to use the alternating main magnetic flux φ. The closed magnetic path of the alternating main magnetic flux is indicated by a dotted line. The relationship between the positions of the windings a and b corresponding to the angle θ shown in FIG. 6 and the positions of the windings a and b is additionally shown below FIG.

A three-phase linear motor uses each phase of a three-phase AC power supply for three sets of single-phase power supplies, and includes three sets of c windings and three sets of a and b windings. It has the same constant rotational force characteristics as in FIG. The advantages of linear motors are that they reduce the height of trains and eliminate overhead lines, so subways have the economic effect of simplifying tunnel construction. Further, since the train is directly towed by the thrust, the speed increase and acceleration are facilitated without slipping of the wheels.

Since the conventional superconducting electric train floats, it is necessary to reduce the electromagnetic attraction force in the air gap of the electric motor acting as an AC electromagnet. Therefore, since an iron core is not used for the exciting winding, there is a disadvantage that the exciting current is significantly increased. FIG.
In the second linear motor, the electromagnetic attraction force is combined with the weight of the train. Further, in order to prevent an increase in the exciting current, the c winding having no electromagnetic coupling between the iron cores is opened from the AC power supply. Induction motor type linear motors have already been used in subway trains in cities. However, overhead wires are used, and an induction plate on a track is used as a load required for its secondary winding. The traction force generates the reactive load current, and the output generates the effective load current. The power loss of the induction plate has the disadvantage of increasing the temperature inside the subway. In addition, since the load on the induction plate cannot be adjusted, a voltage change of the AC power supply is required to control the traction force and the output.

In FIG. 12, the field windings a and b of the linear motor are controlled by thyristors, and the thrust and speed of the train are controlled. Its characteristics correspond to a DC series motor of a DC train,
The constant torque characteristic has an effect of eliminating the disadvantage of the torque characteristic in the induction motor type linear motor. Further, thyristors have low power loss, and therefore have few disadvantages in that the temperature in the subway rises. Lighting, cooling and heating,
In addition, an auxiliary power supply for controlling the train is required. The auxiliary power supply is used by connecting a mechanical modulator to the windings a and b and using it as a kind of a modified modulation generator or a power converter from which the amplitude modulation is removed. If the two-phase winding is rotated by the rotor in proportion to the modulation frequency, the induced voltage of the single-phase winding is removed from the amplitude modulation and becomes a constant voltage proportional to the AC power supply. Therefore, a fixed voltage of the stator is used as an auxiliary power supply, and the auxiliary power is supplied from an AC power supply, regardless of the speed of the train and whether the vehicle is stopped.

The rotor takes out the component of the modulation frequency from the a and b windings, amplifies it, and rotates by the synchronous motor. The mechanical modulator has no synchronous rotational force because β = 0, and the synchronous motor does not require rotational force for rotation. Therefore, the operation corresponds to the no-load operation, and the auxiliary power supply and the AC power supply have substantially the same phase with little delay angle.

(D) Electric Vehicle In general, in a gasoline vehicle, the speed is directly controlled over a wide range by an engine, so that the overall efficiency is reduced.
As a result, an increase in fuel causes an increase in pollution gas and carbon dioxide gas. In a conventional electric vehicle, its own weight increases due to the storage battery, so that the efficiency decreases. In addition, power consumption is large, and the number of times of charging the storage battery also increases. If power is generated by a thermal power plant, the power consumption indirectly causes an increase in pollution gas and carbon dioxide gas.

If a single-phase or three-phase modulation motor or a modified modulation motor having a constant rotational force characteristic is connected to an AC generator having a constant AC voltage and a constant power supply frequency directly connected to the engine, a continuously variable transmission of a new electric vehicle is provided. Become a machine. The structure and the control system diagram are shown in FIGS. 10 and 11, respectively, and 13 corresponds to an electric vehicle. Generally, the number of revolutions at which the engine is at maximum efficiency is large and constant. Therefore, a direct-coupled engine generator that rotates at a constant rotational speed of maximum efficiency has a high power supply frequency and can reduce the weight and size of the engine generator itself. In addition, the increase of the power supply frequency can reduce the weight and size of the alternator and the mechanical modulator or the modulation amplifier and the modulation motor or the modified modulation motor at the same time.

The drive shaft of a gasoline vehicle cannot reduce its weight. The corresponding power supply line of the AC generator has a relatively reduced weight. The AC generator does not need to change the AC power supply voltage for speed control and does not cause an increase in weight. In addition, the transmission of the gasoline vehicle corresponds to the load of the field winding, and the thyristor is used for the load, so that the weight can be reduced. By reducing the weight of each part, a new electric vehicle can be drastically reduced in weight. As a result, pollution gas and carbon dioxide can be significantly reduced by reducing fuel consumption and improving efficiency. In addition, since the engine is rotated at a constant rotation speed, the driving characteristics and efficiency of the engine using natural gas, methanol, and hydrogen, which are alternative fuels with low pollution gas, can be improved. Since there is no step-out fault and no armature reaction and no reactance that disturbs the load current, it can be used to increase the starting torque and acceleration of new electric vehicles.

In general, reducing the weight of an automobile is a conventional and consistent technical improvement. If the electric vehicle reduces its own weight, it is possible to reduce the unit price and reduce the damage at the time of collision due to the reduction of the inertial kinetic energy. In a four-wheel drive vehicle, a modulation motor or a deformation modulation motor is arranged on each wheel, and the wheels are operated in parallel without a differential gear. In addition, since the load thyristor can be easily used in combination with the electric protection circuit, it is effective in preventing a runaway accident and improving reliability.

Except for the track of the AC train and overhead lines, it is equivalent to a large electric vehicle. Electric drive control can improve steering performance, reduce vibration and noise, and improve comfort. For example, the engine generator may be shared with an auxiliary power supply for controlling an electric vehicle, and may be provided at any position where there is no damage from exhaust gas. Furthermore, it is adopted for mini cars, two-wheeled vehicles, bicycles, wheelchairs, etc.
If an electronic automatic control circuit is used in combination with the thyristor, steering performance and safety can be improved.

(E) Fluid control device In general, the supply pressure of a liquid or gas changes depending on the specific gravity, height, supply distance, supply amount and cross-sectional area of a pipe, and causes a pressure drop. For example, in a high-rise building, a water tank is required due to insufficient water pressure of a water supply, and water quality degradation is a problem. Insufficient supply water pressure can be automatically compensated by a pump. However, the induction motor for driving the water pump is frequently caused by an excessively large starting current, causing noise and failure.

In the modulation motor or the modified modulation motor having the constant rotation force characteristic shown in FIG. 10, the synchronous rotation force balanced with the supply water pressure is automatically and continuously compensated for the shortage of the water pressure by the constant load of the field winding. Maintain water pressure. The effect of always maintaining a constant load current regardless of the rotation speed simplifies the structure without opening and closing the AC power supply, and has the effect of improving reliability except for the water storage tank.

The constant delay angle maintains a constant synchronous rotational force and a constant rotational direction. Therefore, the backflow of the feedwater is prevented, and the rotation speed acts as a power servo that changes in proportion to the amount of feedwater. In general, the change in the amount of supplied water is slow, so that the rotation speed may be low. City gas, for example, employs the same principle to maintain a constant supply pressure. The principle of the water supply device is that if the water supply is replaced with a wire, a band plate, a magnetic tape, or the like, the device becomes an automatic constant tension winding device. The winding speed varies depending on the value of the constant tension and the mechanical load.

If the field winding is short-circuited, the structure of the modulation motor is simplified, and its driving characteristics have already been described. A power cell sine that requires very little input energy to control a mechanical modulator or a modulation amplifier connected thereto is constructed. The connecting conductor is intended for remote operation, and the synchronous torque is proportional to the mechanical load of the modulation motor. It has the same function as the conventional selcin motor, and its rotational force can be significantly increased. Therefore, the water supply pump of the large water tank has an application for the purpose of automatically controlling the water supply speed, the water supply amount and the designated water level by program control of a mechanical modulator or a modulation amplifier.

For large trucks and other industrial equipment,
It becomes a continuously variable transmission with less control input, and is effective for remote control of its operation and speed control. For example, city gas automatically shuts off the main building automatically with strong synchronous torque,
It can be used for the purpose of withstanding the catastrophic disaster of earthquake and preventing the spread of fire.

Water reservoirs selectively control water gates for industrial and agricultural water supply, and large heating furnaces in steel mills and chemical factories open and close the supply of fuel, cooling water, powder raw materials, etc. synchronously. I do. Simple structure and strong turning force increase reliability in harsh working environment. The power cell sine has low loss, requires significantly less input energy to control a mechanical modulator or modulation amplifier, and is independent of synchronous torque. Therefore, there is a new use as a kind of continuously variable transmission that generates a strong rotational force with small control energy. However, when there is no synchronous rotational force due to the balance action at rest,
Does not generate excessive short-circuit current.

(F) Pumped-type hydroelectric power plant In general, a pumped-storage power plant uses a three-phase synchronous motor as a three-phase synchronous motor by reversing a three-phase synchronous generator and a water turbine as a pump. However, the synchronous speed becomes constant, and the pumping amount cannot be controlled by changing this. Thus, there are often instances where three-phase induction motors are employed. If the three-phase secondary winding is excited by a DC power supply, it can be used for a synchronous generator and a synchronous motor.

A three-phase excitation power supply is connected to the three-phase secondary winding of the three-phase induction motor, the slip frequency of the three-phase excitation power source is changed, and the pumping amount is controlled over a wide range by changing the rotation speed. However, there is a disadvantage that the induced voltage and the slip frequency at which the DC main magnetic flux is generated in the secondary winding have an interference action between the voltage of the three-phase excitation power supply and the slip frequency. The excitation power supply must separately supply the rotation speed, rotation force and slip frequency required for the pumping pump, reactive load current and active load current. Therefore, there is a disadvantage that a control circuit for controlling the pumping amount by separating the separation is complicated. The control method corresponds to a so-called vector control type induction motor. Therefore, the required control computer increases the economic burden of the equipment. In addition, as the power for pumping increases, the capacity of the three-phase excitation power supply increases in proportion to this, and the increase in the economical burden becomes a disadvantage.

If a three-phase modulation motor or a three-phase deformation modulation motor having a constant rotational force characteristic is employed, the structure will be as shown in FIG.
Is a three-phase AC power supply, which is a single-phase power supply for each phase, and a three-phase load of the field winding corresponds to a three-phase excitation power supply of the three-phase induction motor. However, the loss when energizing the thyristor of the load is small, and the efficiency is improved. The thyristor controls the rotation speed by the synchronous rotation force while maintaining a constant delay angle, and adjusts the pumping amount in a wide range. However, since the thyristor does not need the vector control method required for the three-phase induction motor, there is an economic effect that the structure can be simplified.

When the rotational force of the pump is increased by the synchronous rotational force, the constant delay angle becomes a constant advance angle because of the reverse rotation, so that the three-phase modulation motor and the three-phase deformation modulation motor are either a modulation generator or a deformation modulation motor. It becomes a generator and the pump becomes a water wheel. With a constant lead angle, the generated power is supplied to the DC AC power supply regardless of the fluctuation of the rotation speed. The three-phase thyristor controls the three-phase generated power over a wide range, and the turbine does not require an automatic constant speed control device, which has an economic effect of simplifying the structure.

(G) Pollution-free power plant The total energy of tidal power, wind power, solar heat, waste heat and exhaust pressure of power plants and factories is extremely large, and fluctuations in energy density are disadvantageous and they are not used completely. Is the current situation.
Conventionally, the synchronous generator of the pollution-free power plant supplies the generated power to the AC power source while maintaining the synchronous speed. However, if the non-pollution energy of the prime mover becomes low density, the synchronous speed cannot be maintained,
This energy is abandoned and cannot be used. Further, when the prime mover stops, the synchronous generator opens the AC power supply, which has a disadvantage of reducing the total power generation. Therefore, the power generation efficiency is lowered, which makes it difficult to economically develop a pollution-free power plant.

The constant rotational force characteristic shown in FIG.
Employing a phase modulation generator or a modified modulation generator eliminates all the disadvantages of synchronous generators. If the rotational force of the prime mover is significantly reduced due to the synchronous rotational force or the combined synchronous rotational force, there is a disadvantage that the prime mover stops. It is necessary to prevent the stop by always balancing the synchronous torque or the combined synchronous torque with the fluctuating torque of the prime mover by automatic control of the thyristor. If the prime mover loses torque, the thyristor automatically shuts off the load current, eliminating the need to open the AC power supply, simplifying the electrical circuit and maintenance. All the power generated by the constant lead angle is automatically supplied to the AC power supply. As long as the prime mover has an output, the total power generation increases and the power generation efficiency improves irrespective of the rotation speed fluctuation. For example, a self-contained non-polluting power generator has an economic effect of simplifying the structure of a power selling facility by automatically supplying surplus power exceeding the self-consumption power to an AC power supply.

As an example, FIG. 13 shows a new structural principle necessary for improving the power generation efficiency of a tidal power plant. The bottom of the water storage tank 19 floating on the sea partitioned by the side wall that blocks the waves is connected to the sea bottom of the open sea. Upper and lower wave breakers 20 and 2 on one side of the side wall
1 is provided. In some cases, the coast is used for part of the outer wall. The reservoir 19 therefore has a hydrostatic surface 22, which corresponds to the average level 23 of the open sea. The cistern has the same basic principles and structure as a fisherman working in the coastal fishery while looking into the still water surface of the breakwater prism. The water turbine 24 is composed of the wave breakers 20 and 2
Provided in one narrow gap, the axle moves up and down in accordance with the ebb and flow of seawater, coinciding with the 19 hydrostatic surfaces 22.

When the sea surface of the open sea rises due to the waves 25, the wave breaker plate 20 becomes a dam and the kinetic energy of the seawater pushes the upper half of the wing fan of the water turbine 24, and the water turbine is driven by the pressure difference from the atmospheric pressure acting on the water turbine. Rotate 24. At the same time, the seawater on the wing fan rotates the water wheel 24 in the same direction by its own weight, and after falling on the still water surface 22, returns to the open sea while rotating the lower half of the wing fan in the same rotation direction. There is some seawater returning to the open sea through the seabed, and the water level of the still water surface 22 does not change. The ocean surface in the open ocean is wave 2
If it descends by 6, the upper half of the wing fan is in the atmosphere and the lower half is affected by the atmospheric pressure generated by the wavebreaker plate 21. On the other hand, the pressure difference between the water tank 19 and the seawater acting on the water tank 19 causes the water wheel 24 to rotate in the same direction. All the energy stored by the seawater is directly converted into mechanical energy of the water turbine 24 to increase the rotational force overall and improve the efficiency of the water turbine. Therefore, the modulation generator or the modified modulation generator rotated by the water turbine automatically generates power and supplies it to the AC power source irrespective of the rotation speed while maintaining a constant lead angle.

The tidal power plant of FIG. 13 has a simple structure,
Since the total power generation is increased and the power generation efficiency is improved, there is an economic effect that facilitates development of tidal power generation. The water wheel 24 shown in FIG. 13 rotates. 18 corresponds to FIG. Therefore,
10 and 11 are prime movers, and the generator 12 supplies the generated power to the AC power supply 16.

The coastline of Japan is long, and the ria coast is suitable for tidal power plants. To reduce the width and depth of seawater,
There is a phenomenon in which the wavelength decreases and the peak value increases due to the kinetic energy of seawater. For example, since the wavelength becomes zero due to a breakwater, the peak value increases. In addition, if a water tank is provided on the side of the boat and moved to an appropriate place, the total power generation can be further increased. However, in order to prevent damage to the turbine due to storms, measures must be taken to temporarily sink the turbine deep into the sea. If a plurality of non-polluting power plants are operated in parallel, there is no cause for generation of turbulence, and the fluctuation of the combined power generation decreases due to the time difference in the fluctuation of each power generation. The power generation efficiency is improved by the combined generated power regardless of the speed fluctuation of each prime mover.

The efficiency of the solar cell is about 10%, which is disadvantageous in comparison with the efficiency shown in FIG. In addition, the DC / AC converter increases the economic burden. Thermal power plants increase pollution gas and carbon dioxide, and nuclear power plants indirectly increase pollution gas and carbon dioxide by the large amount of electricity required for refining uranium fuel. As the development of non-polluting power plants becomes more and more important, improving the economic structure and power generation efficiency is a goal of technological improvement. The decisive factors are the modulation generator and the modified modulation generator.

(H) Seismic isolation structure of middle-rise building Assuming that the building has no inertia at all, the ground and the building that will become the ground vibrate together due to the earthquake. Therefore, the external force acting on the building is small, and the building is not at risk of collapse. In fact, due to its great weight and inertia, the building is temporarily whipped and hardly move. The lower surface of the building comes into close contact with the ground and vibrates due to the earthquake. However, since the upper surface of a building cannot move due to inertia, a deformation force is generated by tilting. For example, if the ground and the bottom of the building move in one direction, a deformation force is generated on the bottom, and the reaction force acts on the top. Since each force has a different fulcrum, it becomes a destructive turning force, and the structure is squeezed, causing complex buckling failure. As the rigidity of a building increases, the deformation force required for small deformation increases.

The conventional seismic isolation device has a structure in which a cushioning material is inserted between the ground and the bottom of the building to separate them from each other in order to eliminate the disadvantages. Generally, the cushioning material adheres a laminated iron plate and rubber plate to absorb vertical seismic energy and support its own weight by its rigidity. However, the elastic deformation in the horizontal direction reduces the deformation force of the building and uses it for the restoring force.

FIG. 14 is a schematic view showing the structure of a new seismic isolation device to which the present invention is improved by a sectional view. The main cushioning member 30 is inserted between the center of gravity 28 on the bottom surface of the building 27 and the ground 29 to support its own weight. A pair of auxiliary cushioning members 33 and 34 are inserted into both ends 31 and 32 of the bottom surface to evenly support a part of their own weight. Further, between the auxiliary cushioning members 33 and 34 and the ground 29, there are modulation motors 35 and 36 having the structure and connection diagram of FIG.
Is inserted as a servomotor to raise and lower the spiral screws 37 and 38. The servomotor is used to differentially rotate the helical screws 37 and 38 and tilt the building 27 about the center of gravity 28 to eliminate the reaction force. However, since the center of gravity 28 does not change its position in the vertical direction, the modulation motors 35 and 36
Requires a condition to maintain the synchronous rotation force. For example, if the end 31 descends, the falling energy due to its own weight becomes the prime mover of the modulation motor 35 and exhibits a power generating action. The generated power is used for the driving force of the modulation motor 36 necessary for raising the end 32. Therefore, since the powers of the modulation motors 35 and 36 are canceled out in the calculation, the power supplied to the common excitation power supply of the servo motor is not required. However, since the helical screws 37 and 38 have a large weight and a large friction loss, a part of the electric power is required for the common excitation power supply.

The purpose is to prevent the buckling failure by offsetting the breaking rotational force by the inclination rotating force of the building 27. Since the inclined rotational force moves the position of the center of gravity, the own weight has a pendulum action, and the pendulum rotational force has an equilibrium action of returning the center of gravity 28 to the changing position of the ground 29. The breaking torque is offset by the tilt torque and the resultant torque is significantly reduced. Therefore, the inclination and the deformation force of the building 27 caused by the earthquake are reduced, and in effect, the rotation amounts of the modulation motors 35 and 36 and the elevation amounts of the spiral screws 37 and 38 are sufficiently reduced.
The modulation motors 35 and 36 repeat the reverse rotation in synchronization with the repetitive vibration of the earthquake. In order to maintain the synchronization, it is necessary to sufficiently increase the starting rotational force. The synchronous torque that is not related to the rotational speed of the modulation motor is extremely large because it corresponds to the starting torque of the stationary induction motor. The starting torque generated by the same principle can be controlled in a wide range by the load, so that it can be easily increased. However, the induction motor decreases the rotational force as the rotational speed increases, but the modulation motor does not have the disadvantage. Therefore, the modulation motors 35 and 36
Needs to be a modulation motor having the structure shown in FIG. Although the induction motor is excellent in the starting torque, the slip changes depending on the output, which causes a turbulence in the control of the servomotor. Since the modulated motor has no slippage and has almost no armature reaction, there is an effect of eliminating a synchronous reactance that interferes with the load current. Synchronous motors have a small starting rotational force and suffer from armature reaction.

In general, the vibration direction of an earthquake is not constant but has a disadvantage that it fluctuates. Therefore, in practice, three sets of auxiliary cushioning members 33 and 34 are provided on three line segments having a spatial angle of 120 degrees with respect to the bottom surface 28 of the building 27.
The difference is provided between the spiral screws 37 and 38 of each set which moves up and down differentially, and the inclination amount of the building 27 on the three line segments is synthesized, and the direction is made to coincide with the direction of the earthquake. is there. For example, the amounts of displacement of the center of gravity 28 and the ground 29 in the directions of the three line segments are measured, and in order to remove the deviations, the modulation motors 35 and 36 of each set are automatically operated by an automatic controller. When the earthquake attenuates and the ground stops, the building has almost no tilt angle except for the amount of rotation of the pendulum and the restoring force of the cushioning material, and the servomotor does not rotate.

[0153]

According to the AC machine of the present invention, the two-phase stator winding is excited by the combined magnetizing current, and the single-phase rotor winding is excited by the reactive load current having the same phase relationship, so that the stator and the rotor are rotated. The child acts like a pair of AC electromagnets. If the rotor of the mechanical modulator is continuously rotated by external force,
Due to the balancing action, the rotor of the alternator is rotated synchronously, resulting in a new slip-free alternator. This indicates the characteristics of the modulation control type AC machine, and the synchronous torque can be arbitrarily increased by changing the load. Thus, all the disadvantages of the characteristics of the selcin motor already mentioned are eliminated.

The load current is supplied from an AC power supply. Since this corresponds to the secondary current of the induction motor described above,
Armature reaction is eliminated. Therefore, there is no reactance that obstructs the load current and no voltage drop due to the reactance, so that the efficiency is improved. The alternating main magnetic flux having a constant amplitude rotates in proportion to the modulation wave frequency while alternating at the power supply frequency. However, the frequencies are separated from each other, and there is no interference in controlling the power supply frequency (carrier frequency) and the modulation wave frequency.

When the rotor of the modulation motor is forcibly rotated in the same direction and at the same speed by the prime mover, there is a power generating action.
An alternating main magnetic flux having a constant amplitude that alternates according to the power supply frequency of the AC power supply is generated. At the same time, the modulation wave frequency of the mechanical modulator can be changed independently of the power supply frequency, and the synchronous rotation force generated by the alternating main magnetic flux and the rotation speed proportional to the modulation wave frequency can be controlled without mutual interference. There is a feature in the point.

[Brief description of the drawings]

FIG. 1 is a diagram showing a relationship between a voltage of a mechanical modulator, an amplitude modulation waveform, and a phase.

FIG. 2 is an example showing a structure of a modulation motor embodying the present invention.

FIG. 3 is an example diagram showing a winding diagram of a stator winding in FIG. 2;

FIG. 4 is a diagram showing an example of a winding diagram of a rotor winding shown in FIG. 2;

FIG. 5 is a diagram showing each winding of FIG. 2 by an electric circuit and a layout diagram.

FIG. 6 is a space vector diagram showing the relationship between the voltage and magnetic flux of the rotor winding with respect to the stator winding of FIG. 2 and showing that the alternating main magnetic flux rotates to form an alternating rotating magnetic field.

FIG. 7 is a diagram showing a vector diagram of an alternating electromagnetic force generated by a load current of the alternating main magnetic flux and a rotor winding of FIG. 2;

FIG. 8 is a diagram showing an excitation voltage waveform of each phase generated by opening and closing the power supply voltage of the three-phase induction motor at a high speed.

FIG. 9 is a diagram showing a structure and connection of a modulation motor having a constant rotation speed characteristic.

FIG. 10 is a diagram showing the structure and connection of a modulated motor and a mechanical modulator, which have a constant rotational force characteristic by directly connecting rotors to each other.

FIG. 11 is a block diagram showing the control system of FIG. 10;

FIG. 12 is a diagram illustrating a relationship between movement of the train and each winding, in which the modified modulation motor is used as a linear motor in an AC train.

FIG. 13 is a diagram showing a relationship between a water turbine used for tidal power generation and a water tank floating on the sea, and a cross-sectional view of a tidal power plant for improving power generation efficiency.

FIG. 14 is a diagram illustrating a seismic isolation device in which a building is tilted by a modulation motor in order to remove a destructive force generated by deformation of a building due to ground vibrating due to an earthquake.

[Explanation of symbols]

e: single-phase power voltage e _a, e _b: 2-phase dielectric pressure e _al, e _bl: carrier voltage e _a2, e _b2: modulation wave voltage a, b, 1,2: stator winding c: rotor windings line 3: stator core 4: field winding 5: rotor core 6: rotary shaft 7, 8: bearing 9, 10: thyristor φ _a, φ _b: alternating magnetic flux phi: alternating main magnetic flux theta: phi and the φb Θ ₀ : angle with respect to the frequency of e β: delay angle of the rotor f ₀ : AC electromagnetic force 11: mechanical modulator 12: modulation motor 13: mechanical load 14, 15: rotor 16: single phase power supply 17: Phase control circuit 18: Modulation generator 19: Water storage tank 20, 21: Wave breaker plate 22: Still water surface 23: Average water level of the open sea 24: Water wheel 25, 26: Ocean wave 27: Building 28: Bottom of 27 Center of gravity 29: ground 30: main cushioning material 31, 32: on the bottom surface of 27 Both ends 33, 34: Auxiliary cushioning material 36, 36: Servo motor 37, 38: Helical screw

Claims (18)

(57) [Claims] 1. A modulator for amplitude-modulating an AC voltage as a carrier voltage supplied from an AC power supply to generate a multi-phase amplitude modulated voltage, a stator winding, and the AC power supply.
A modulated alternator having a rotor winding connected to a controllable electrical load without being connected to a controllable electrical load, wherein a stator winding of the modulated alternator has the multi-phase amplitude modulation voltage from the modulator. It generates an alternating main magnetic flux in response to the rotor winding of the modulation AC machine is rotated in response synchronously with the rotation of the alternating main magnetic flux, reactive load current under the control of the electrical load
Alternator of modulation control type comprising a can that changed modulation AC machine. 2. The modulator according to claim 1, wherein the modulator includes means for changing a modulation frequency of the amplitude modulation voltage such that a synchronous rotation speed of the rotor winding of the AC machine is changed. Modulation control type AC machine. Wherein said modulation AC machine, serial to claim 1 or 2 comprising means for controlling the synchronous rotation force generated in the rotor winding by controlling said electric load <br Modulation control type alternator. Wherein said modulator alternator modulation control type according to any one of claims 1 to 3 having the same structure as the modulation AC machine. (5)The carrier voltage supplied from the AC power supply
Amplitude modulation of all AC voltages to generate polyphase amplitude modulation voltage
Modulator and the stator windings and electrical loads.
A modulated alternator having a continuous rotor winding, the
The stator winding of the alternator is connected to the polyphase amplitude changer from the modulator.
Generating an alternating main magnetic flux in response to the modulation voltage;
Rotor winding is synchronous in response to the rotation of the alternating main magnetic flux.
A modulation control type comprising a modulation AC machine rotated
An AC machine,  The modulator was connected to the modulated alternator stator winding
The AC to receive the stator winding and the carrier voltage
A mechanical modulator with a rotor winding connected to a power supply;
The mechanical modulator is provided with an external force to control the modulator circuit.
By rotating the trochanter winding, the modulator stator winding
Generating the amplitude modulation voltage from the carrier voltage,
The amplitude modulation voltage is proportional to the rotation speed of the modulator rotor winding.
Modulation frequencyChangeKey control type AC machine. 6. The modulator includes means for generating a modulation wave voltage, performing amplitude modulation on the carrier voltage supplied from the AC power supply according to the modulation wave voltage, and generating the amplitude modulation voltage. The modulation control type AC machine according to any one of claims 1 to 4 . Wherein said modulator rotor winding is a single phase, said modulator stator winding is two-phase, wherein a modulation AC machine stator winding is two-phase, synchronous rotation of the rotor A force is applied to the modulated alternator rotor winding through the electrical load such that the single phase rotor winding of the modulated alternator is rotated in synchronization with the rotation of the modulator rotor winding. 6. The modulation control type AC machine according to claim 5, wherein the AC machine is generated by an electric current and the rotating main magnetic flux generated by a stator winding of the modulation AC machine. Claim 8.The carrier voltage supplied from the AC power supply
Amplitude modulation of all AC voltages to generate polyphase amplitude modulation voltage
Modulator and the stator windings and electrical loads.
A modulated alternator having a continuous rotor winding, the
The stator winding of the alternator is connected to the polyphase amplitude changer from the modulator.
Generating an alternating main magnetic flux in response to the modulation voltage;
Rotor winding is synchronous in response to the rotation of the alternating main magnetic flux.
A modulation control type comprising a modulation AC machine rotated
An AC machine,  The AC power supply is three-phase, and the modulation control type AC machine
Comprises three sets of the modulator and the modulation alternator,
Each phase of the AC power supply is connected to each of the three sets of the modulators.
ContinuedStrangeKey control type AC machine. 9. The three sets of modulators each include a stator winding connected to the modulation AC machine stator winding, and three sets of single-phase rotary motors connected to each phase of the three-phase AC power supply. And a mechanical modulator having a slave winding, wherein the rotor windings of the three sets of modulators are mechanically coupled to a rotor shaft, and each of the three sets of modulation alternators comprises 9. The modulation control type AC machine according to claim 8, wherein a rotor shaft of said modulation AC machine is mechanically connected. 10. The mechanical modulator, wherein the modulator has a stator winding connected to the stator winding of the modulation AC machine, and a rotor winding connected to each phase of the three-phase AC power supply. A mechanical modulator, wherein the mechanical modulator comprises a pair of rotors and three stators.
3 for each part of the rotor equally divided with a spacing of 2π / 3
A set of rotor windings accommodates three sets of stator windings in each part of the stator, and the modulating alternator divides a pair of the stator and the rotor into three equal parts and has a spacing of 2π / 3. 9. The modulation control type AC machine according to claim 8, wherein three sets of rotor windings are accommodated in each part of the rotor having: and three sets of stator windings are accommodated in each part of the stator. 11. A modulator having a stator winding and a rotor winding for generating a polyphase amplitude modulation voltage from an AC voltage as a carrier voltage supplied from an AC power supply, and a stator winding. Without being connected to the AC power supply.
And a rotor winding connected to a controllable electrical load, wherein the stator winding rotates in response to the polyphase amplitude modulation voltage from the modulator. generating a magnetic flux, the rotor winding is rotated in response to the alternating main magnetic flux, the conductivity
Gas load; and a reactive load current that is changed modulation AC machine under the control of the mechanical load or modulation control type AC machine prime mover is coupled to said modulation AC machine rotor. 12. The modulator according to claim 1, wherein the modulator rotator is rotated by a synchronous torque generated by the modulation AC machine.
2. The modulation control type AC machine according to 1. 13. The electric load is directly connected to the modulator rotor and the modulation alternator rotor by providing a predetermined mechanical angle difference between the modulator rotor and the modulation AC machine rotor so that the synchronous rotational force is constant.
Modulation control type AC machine according to claim 11, wherein comprising a means for keeping constant the reactive load current flowing through said modulation AC machine rotor winding by controlling. 14. An AC power supply connected directly or indirectly.
First multiplicity for generating a continuous and rotating alternating main magnetic flux
A phase winding, and the first multi-phase winding provided so as to be rotatable electromagnetically.
AndControllable without being connected to the AC power supplyElectric
A second single-phase winding connected to an electrical load;
And a second single-phase winding that rotates in response to the main magnetic flux, Control of the first polyphase winding through control of the electrical load
By controlling the reactive load current flowing through each phase, Inactive load
Control means for maintaining a predetermined difference between the currents;
Modulation control type AC machine equipped with: 15. An electric power generator for generating electric power and serving as an AC power supply.
An engine generator;AC power as carrier voltage supplied from AC power supply
Multi-phase by amplitude modulation of pressure Modulation to generate amplitude modulation voltage
A controller, and The windings connected to the stator windings and the electrical load
A modulation motor having a trochanter winding, wherein the modulation motor
The stator winding is connected to the polyphase amplitude modulation voltage from the modulator.
In response, an alternating main magnetic flux is generated, and the modulated motor rotor winding is generated.
The wire is rotated synchronously in response to the rotation of the alternating main magnetic flux.
And a modulation motor,  The modulator is connected to the modulation motor stator winding
The AC to receive the stator winding and the carrier voltage
A mechanical modulator with a rotor winding connected to a power supply;
Said mechanical modulator, said modulator rotor winding by external force
By rotating the carrier to the modulator stator winding.
Generating the amplitude modulation voltage from the transmission voltage;
The voltage is modulated in proportion to the number of rotations of the modulator rotor winding.
Having a frequency, the modulator rotor and the modulation alternator rotation
Predetermined between childrenmechanicalDirect connection to each other with an angle difference
Electric car. 16.A water wheel, A modulator rotator, a modulator stator winding, and the modulator rotation
Modulator rotor winding provided on the drive and connected to an AC power supply
A mechanical modulator having lines and To the modulator stator
The connected AC machine stator and the modulator stator winding
AC machine stator windings connected to the
Connected to a controllable electrical load without being connected
And a modulation type AC machine having an AC machine rotor winding.
And The modulator rotor winding is connected to an AC power supply through the AC power supply.
When subjected to pressure, the modulator stator windings
Generate voltage, The alternator rotor windings are from the modulator stator windings.
Alternating rotation of the alternating main flux in response to the polyphase amplitude modulation voltage
Generate a magnetic field, The alternator rotor winding responds to the alternating rotating magnetic field.
When rotated, the water wheel is rotated to pump water, When the water wheel is rotated by falling water, the AC
The machine rotor and the modulator rotor are rotated to produce AC power
Is generated, and the generated power is supplied to the AC power supply.
Pumped generator. 17. The internal water is connected to the sea,
A tag that has an opening so that waves are obstructed so that it has a water surface
And a turbine having a rotating shaft, wherein the central axis of the turbine is
Provided at the end of the tank on the sea side to coincide with the still water level
A turbine rotor provided at the upper and lower portions of the turbine, and a modulator rotor connected to the rotating shaft of the turbine.
A modulator stator winding and an alternation provided on the modulator rotor.
With a modulator rotor winding connected to a power supply
A modulator, and an AC machine fixed connected to the modulator stator.
A constant and an alternating current connected in parallel with the modulator stator winding
Machine stator winding, without being connected to the AC power supply,
An alternator rotor winding connected to a controllable electrical load
; And a modulated alternator having a, when said water wheel is rotated by waves, said AC machine times
The rotator and the modulator rotor are rotated to generate AC power.
Generated, and the generated power is supplied to the AC power supply.
Tidal generator. 18. The method according to claim 19, wherein the building and the ground vibrated by the earthquake.
In between, through an auxiliary cushioning member, so as to have an angle of 120 degrees
Three pairs of spirals provided to uniformly indicate the building
Screws and three sets of modulated motors connected to an AC power supply via a modulator
And the modulation frequency is controlled by an external force,
The rotation speed is controlled by the external force, and the set of modulated
The motive is to move the corresponding spiral screw up and down,
The modulator may be a single-phase or three-phase mechanical modulator or a modulation amplifier.
Three sets of modulation motors, and a center of the bottom of the building between the building and the ground
The main cushioning material provided in the section and the three-dimensional structure described above so that the combined inclination direction matches the vibration direction of the ground.
For controlling a set of modulation motors or modified modulation motors
Control means, wherein said spiral screw comprises three pairs of spiral screws.
Combination of the inclination of the building in three directions by cryu
The screw is moved up and down differentially so that
Control means, and the destructive force on the building due to the earthquake is controlled by the combined inclination.
MenShinSo location to be Yanseru.