JPH0669246B2 - Levitating, guiding and propulsion combination device for induction repulsion type magnetic levitation railway - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to levitation, guidance, and guidance in an induction repulsive magnetic levitation railway.
It relates to a propulsion combined use device.

(Prior Art) Generally, an induction repulsion type magnetic levitation railway is well known. An example of the floating, guiding and propulsion mechanism is shown in FIGS.
It will be described with reference to the drawing.

Reference numerals 20 and 20 'are superconducting coils vertically mounted on both sides of a bogie 9 of a vehicle V. Reference numerals 21 and 21' are horizontally and continuously arranged on a bottom surface of a trackway 13 having a U-shaped cross section along a vehicle traveling direction. The conductors such as the floating conductor coil or the conductive sheet are arranged in the relationship shown in FIG. 11 (a). Reference numerals 22 and 22 ′ are conductive coils for guiding and propelling, which are continuously arranged on both inner sides of the orbital path 13 at predetermined intervals vertically and continuously.
It is arranged so that it can be electromagnetically coupled with 0 '.

The vehicle V includes the conductor coils 21, 21 'and the superconducting coil 2
A levitation force is applied by 0, 20 ', and is propelled and guided by the conductor coils 22, 22' and the superconducting coils 20, 20 '.

This point will be described with reference to FIGS. 11 (a) to 13.

In FIG. 11 (a), reference numerals 20 and 20 'denote loop-shaped superconducting coils shown in FIG. 10, and normally adjacent superconducting coils have opposite polarities. Reference numerals 21 and 21 'are the conductor coils 21 and 21' in FIG.

Even with this configuration, as long as the vehicle V is stopped, the superconducting coils 20, 20 'and the conductor coils 21, 2 on the vehicle are stopped.
No electromagnetic action occurs between 1 '. On-board V
Superconducting coils 20, 20 'and trackway 1 mounted on
Conductor coils 22 and 2 for propulsion guidance laid in 3
The vehicle V is driven by the linear motor 2 '.

As a result, the superconducting coils 20 and 20 'become the conductor coils 2
It runs on 1, 21 ', and the superconducting coil 2
A current is induced in the conductor coils 21, 21 'by 0, 20'. This induced current increases with the traveling speed of the vehicle, or becomes almost saturated when the traveling speed reaches, for example, about 200 km / h, and maintains the same level as long as the vehicle travels at a higher speed. That is, magnetic flux as shown in FIG. 11 (b), which is drawn correspondingly to the conductor coils 21 and 21 'shown in FIG. Positionally correspondingly drawn first
The levitating voltage e shown in FIG.
A current i as shown in FIG. 1 (d) will flow. In this case, if the current of the superconducting coil 20 flows in the direction of arrow a as shown in FIG. 11 (e), the current induced in the conductor coil 21 by the current flows in the direction of b. As a result, the levitation force F = B × i is obtained by Fleming's left-hand rule. Where B is the superconducting coil 20,
The magnetic flux density created by 20 ', i is the conductor coil 21, 21'
Is the current that flows through. That is, the vehicle V is levitated by the repulsive force acting between the superconducting coils 20 and 20 'and the current induced in the conductor coils 21 and 21'.

Next, the guidance and propulsion action of the vehicle V will be described.

The cross-sectional areas of the conductor coils 22 and 22 'are all set to be the same, and they are null flux connected as shown in FIG. Superconducting coil 2 while the vehicle is running
Conductor coils 2 facing each other by 0 and 20 '
Assuming that the magnetic fluxes interlinking with 2 and 22 'are g and g', when the vehicle is not displaced in the left-right direction, g = g '. Therefore, the interlinking magnetic flux as a pair of coils is g-g' = 0. Therefore, the current is not induced and the guiding force is not generated, but when the vehicle is displaced in the left-right direction, g> g '(when the vehicle is displaced in the right direction) or g <g' (when the vehicle is in the left direction). (When displaced to), the interlinkage magnetic flux as a pair of coils becomes g−g ′ = ± Δg ′, and the coils 22, 2
A current as shown by the solid line in FIG. 13 flows through 2 ', and a repulsive force generates a guide force proportional to the displacement in the direction of eliminating the displacement.

On the other hand, a power source 23 for three-phase or multi-phase propulsion is connected to the conductor coils 22 and 22 'for both propulsion and guidance, as shown in FIG. Since electric currents in the same direction as indicated by the dotted arrows flow through 22 and 22 ', a propulsive force for propelling the vehicle V is generated according to Fleming's left-hand rule.

In this system, power supply, coasting, braking, stopping, etc. of the vehicle are controlled from the power source 23 by the conductor coils 22 and 2 which are also used for propulsion guidance.
This is done by controlling the current flowing through 2 '.

When the vehicle V starts to travel by the propulsive force generated by the conductor coils 22 and 22 'also used for propulsion guidance, the superconducting coils 20 and 20' and the conductor coils 21 and 21 'generate the levitation force of the vehicle and the superconducting coil 20. , 20 'and the conductor coils 22, 22' generate a guiding force for the vehicle,
After the vehicle V reaches a certain speed or higher, the wheels 12 are retracted and the levitation is performed while maintaining a constant levitation force. When the traveling speed becomes lower than a certain speed, the levitation force decreases, and the vehicle passes through the pulled-out wheels 12 and 12 and the ground track 1
Land on 3. In addition, 10 is a shaft 1 whose one end is fixed to the vehicle
A mechanical guide wheel pivotally attached to the other end of 1 assists the guide while rotating along the side surface of the track 13.

However, in this magnetic levitation railway, the ground conductor coils 21 and 21 'for levitation are horizontally arranged in the center of the bottom surface of the trackway, and the superconducting coils 20 and 20' on the car are trolleys located in the lateral direction of the trackway. Since it is mounted vertically on the side surface of the levitation conductor coil 9, it is necessary to apply a large induced current to the levitation conductor coils 21, 21 '.
There is a limit to reducing the loss of 1 '. That is, there is a limit to reducing the running resistance, and unstable springs in the left and right directions are generated from the levitation conductor coils 21 and 21 '. Therefore, a stable spring above it is used for both propulsion and guidance. Need to be generated in the conductor coils 22, 22 '.

(Problems to be Solved by the Invention) In view of the present situation as described above, the present invention can effectively exhibit all the functions of propulsion, levitation, and guidance with a simple pair of conductor coils, and moreover, compared with the conventional method, An object of the present invention is to provide a combined levitation / guidance / propulsion device capable of significantly reducing running resistance and having a stable levitation guidance function.

(Means for Solving the Problem) Claim 1 Levitating, guiding, and propelling along a trackway a vehicle in which superconducting coils are arranged vertically in a continuous manner on both side surfaces along the vehicle traveling direction at predetermined intervals. Induction repulsion type magnetic levitation railway is assumed.

An upper conductor coil and a lower conductor coil are arranged to face each other on both sides of the track. The upper conductor coil and the lower conductor coil are null-flux connected. The conductor coils configured as described above are arranged at predetermined intervals along the traveling direction of the vehicle. An upper conductor coil and another upper conductor coil facing the upper conductor coil are further null-flux connected via a connecting wire.
Connect the propulsion power supply to the connection line.

[Claim 2] When the vehicle is traveling via auxiliary wheels, the mutual inductance between the superconducting coil mounted on the vehicle and the null-flux-connected conductor coil arranged in the trackway is reduced. The positional relationship is set to be 0.

(Operation) Levitation force When the vehicle is traveling at a low speed via the auxiliary wheels, the interlinkage magnetic flux of the opposing conductor coils is 0, the current is 0, and the electromagnetic traveling resistance is 0. When the vehicle is levitating, there is a difference in the magnetic flux that links between the upper coil and the lower coil, and a current is induced to generate a levitation force that tries to return the superconducting coil to the upper position, stabilizing it at a position that balances the weight of the vehicle. To do.

Guide force When the vehicle is displaced in the left-right direction, a difference is generated in the magnetic flux interlinking between the opposed upper coils and the opposed lower coils, an electric current is induced, and a guide force for returning the superconducting coil to the center is generated.

Propulsion power The propulsion power source is connected to the opposing conductor coils via connecting wires, and current flows in the same direction in each of the upper coil and the lower coil, generating propulsion force in the vertical side.

(Embodiment) As described above, the conventional induction-repulsion type magnetic levitation railway shown in FIGS.
It is necessary to pass a large induced current to 1 ', and there is a limit to reducing the loss of the levitation conductor coil. That is, there is a limit to reducing the running resistance, and unstable springs in the left and right directions are generated from the conductor coils 21 and 21 'for levitation. Therefore, a stable spring above it is used for both propulsion and guidance. Need to be generated in the conductor coils 22, 22 '.

Under such circumstances, it has been found that the structure shown in FIGS. 3 to 6 is extremely effective as a mechanism for reducing the running resistance of the vehicle.

When the structure shown in FIG. 3 is compared with the structure shown in FIG. 10 which is a conventional system, in FIG. 3 the conductor coils 21, 21 'on the ground in FIG. Conductor coil 1 disposed at the same position as conductor coils 20 and 22 'for guiding and propulsion.
Conductor coil 1 for both floating and propulsion between 5 and 15 '
6 and 16 'are arranged, and the conductor coils 15 and 15' are used as conductor coils only for guiding.

The levitation and propulsion conductor coils 16, 16 'are conductor coils 17, 18, 1 having the same shape and the same size.
7 ′ and 18 ′ are arranged above and below on the same vertical line and are connected to each other by null flux, and the null flux connection portion of the conductor coil 16, 16 ′ also used for levitation propulsion has three phases or multiple phases. A phase-propelling power supply 23 is connected.

When the vehicle V is traveling at low speed through the wheels 12 and 12, the vertical centers of the superconducting coils 20 and 20 ', the vertical centers of the conductor coils 16 and 16' that also serve as levitation propulsion, and the conductive guide wires. The specifications are set so that the vertical centers of the body coils 15 and 15 'are on the same horizontal line.

The conductor coils 17, 18 and 17 ', 18' are arranged symmetrically upward and downward with respect to the center in the vertical direction of the conductor coils 16 and 16 'also used for levitation and propulsion.

In such a configuration, when the vehicle is traveling at low speed, the interlinking magnetic flux for levitation in the upper coils 17, 17 'and the lower coils 18, 18' is 0, and the current is 0. Therefore, the electromagnetic running resistance is 0. .

During the levitation of the vehicle V, the centers of the superconducting coils 20 and 20 'are balanced below the vertical center of the conductor coils 16 and 16' which also serve as the levitation propulsion, and the electric current coil 17 shown in FIG. , 18 flows in the opposite direction to generate the levitation force of the vehicle, but the levitation conductor coils 21 and 2 of FIG.
Since the levitation force is effectively generated as compared with the current flowing in 1 ', the current flowing can be small and therefore the electromagnetic running resistance can be reduced.

On the other hand, as shown in FIG. 6, the power supply current supplied to the conductor coils 16 and 16 'also used for the levitation and propulsion is the upper coil 1
7. Since the lower coil 18 flows in the same direction, a propulsive force is generated on the vertical side.

The guidance of the vehicle by the guiding conductor coils 15 and 15 'in this system is performed according to the same principle as that of the conducting coil 22 which also serves as the propulsion guide shown in FIGS.

In this system, the conductor coil 16 also used for levitation and propulsion,
Like the guiding conductor coils 15 and 15 ′, 16 ′ is vertically arranged to face the superconducting coils 20 and 20 ′, so that stable left and right springs are generated, and the guiding conductor coil 1 is provided.
The springs generated from 5, 15 'can be small.

As a structure for reducing the running resistance of the vehicle, it has been found that the structure shown in FIGS. 7 to 9 is more effective.

Comparing this second effective method with the first method shown in FIGS. 3 to 6, the guiding conductor coil 1 of the first method is used.
A conductor coil 161 having the same structure as the conductor coils 16 and 16 'also used for levitation propulsion in the first method, in that the conductor coils 24 provided at positions 5 and 15' are used as conductor coils dedicated to propulsion. , 161 'are used as the conductor coil that also serves as the levitation guide, and the conductor coils 161 and 161' are arranged on the opposite side surfaces of the trackway.
Are different from each other in that they are null-flux-connected via connection lines 162 and 163 so that the induced voltages induced in the coils above them are canceled.

In this system, the levitation force of the vehicle is as shown in FIG.
It occurs according to the same principle as that shown in FIG. 5 in the first method.

On the other hand, the upper coils 171 and 17 of the conductor coils 161 and 161 'which also serve as levitation guides are arranged on the opposite side surfaces of the trackway.
Since null flux connection is made with 1'via connecting wires 162,163, no electromagnetic action occurs if the superconducting coils 20,20 'are not displaced in the left-right direction.
The magnetic flux of each coil is 0 and the current is 0. However, when the superconducting coils 20, 20 'are displaced in the left-right direction, the upper coils 171 and 171' and the lower coils 181 and 18 are moved.
There is a difference in the magnetic flux interlinking between 1 ', and a current as shown in FIG. 9 is induced, and the superconducting coil 2 is repulsed and attracted.
A guiding force is generated to return 0, 20 'to the center. Moreover, the current that generates the guiding force hardly affects the levitation force.

The characteristic of this method is that the conductor coil 24 is dedicated to propulsion.
The point is that the levitation guide system is configured electrically and independently.

The present invention is premised on the above-mentioned induction repulsion type magnetic levitation guide propulsion system which is effective in reducing the running resistance of the vehicle, and is a combined levitation / guide / propulsion device capable of ensuring stable performance with an extremely simplified mechanism. Is to provide.

The present invention will be described with reference to the embodiment shown in FIGS. 1 and 2 (b).

In FIGS. 1 and 2, the same symbols as those in FIGS. 3 to 13 indicate the same components.

Reference numerals 1 and 1'denominate conductor coils 16 and 16 'in FIG. 3 and 161, 161' in FIG. 7, and upper and lower coils 2, 3 and 2 ',
It consists of a closed circuit with 3'and null flux connection. For example, the conductor coils 1 and 1'are continuously arranged at a predetermined interval along both sides of the inside of the track 13 having a U-shaped cross section along the vehicle traveling direction. Upper coil 2 of conductor coil 1
2 and the upper coil 2'of the conductor coil 1 ', which is opposed thereto, are null-flux connected via connecting lines 4 and 5 as shown in FIG. 2 (a). The superconducting coil 20 when the vehicle V is seated on the ground via the auxiliary wheels 12, 12,
The vertical center of 20 'and the vertical center of the conductor coils 1, 1'are set to be on the same horizontal line.

A three-phase or multi-phase propulsion power source 6 is connected to the connection lines 4 and 5.

Hereinafter, the operation of the present invention thus configured will be described.

Levitation force; When the vehicle V is traveling at low speed via the auxiliary wheels 12, 12, the superconducting coils 20, 20 'and the conductor coil 1,
The positional relationship with 1'is set as described above, and since the upper coil and the lower coils 2 and 3 and 2'and 3'are null flux connected, the conductor coil 1,
The interlinkage magnetic flux of 1'is 0, the current is 0, and the electromagnetic running resistance is 0. During levitation of the vehicle V with the auxiliary wheels 12 retracted, the vertical center of the superconducting coils 20, 20 'shifts below the vertical center of the conductor coils 1, 1', and the upper coil and the lower side. Differences are generated in the magnetic fluxes interlinking between the coils 2 and 3 and 2'and 3 ', a current as shown in FIG. 2 (b) is induced in the upper coil and the lower coil, and the superconducting coil 20, due to repulsion and attraction, A levitation force is generated to return the 20 'to the upper side, and the weight is stabilized at a position balanced with the weight of the vehicle. Also in this case, the upper coil and the lower coils 2, 3 and 2 ', 3'effectively generate a levitation force with a small current, so that the electromagnetic running resistance can be reduced.

Guide force: When the vehicle V is located in the center of the trackway, the conductor coils 1, 1'are symmetrically arranged with respect to the longitudinal centerline of the trackway, and the opposing upper coils 2, 2'are connected. Lines 4, 5
Since the null flux connection is made through the conductor coils 1, 1 ', the interlinkage magnetic flux is 0, the current is 0, and the electromagnetic running resistance is 0. When the vehicle V is displaced in the left-right direction during levitation, there is a difference in the magnetic flux that links between the upper coils 2 and 2'and between the lower coils 3 and 3 ', and the conductor coil 161 of FIG. , 161 ', a similar current is induced, which causes the superconducting coils 20, 20'.
A guiding force is generated to return the to the center.

Propulsion force: The electric current for propulsion is, for example, as shown in FIG. 2 (a), the conductor coil 1 from the three-phase power source 6 via the connection point 7 of the connection line 4.
A → b → c → d, h → g → f → e, and the conductor coil 1 ′ is a ′ → b ′ → c ′ → d ′, h ′ → g ′ → f ′ →
e'Next, flow to the connection point 7 ', each coil 2, 3, 2',
A current flows in the same direction as indicated by an arrow in 3 ', and a propulsive force is generated on the vertical side. In the above embodiment, an example in which a U-shaped section is used as the raceway has been described, but various shapes such as a box-shaped section can be used, and the shape of the raceway is It is not limited to. Further, in the above-mentioned embodiment, an example in which the upper coils 2, 2'and the lower coils 3, 3'arranged in the track have the same shape and the same size has been described, but these coils 2, 2 ', Even if 3, 3'are not the same shape and size (in this case, the vertical center of the superconducting coils 20, 20 'is different from the vertical center of the conductor coils 1, 1'unlike in the above embodiment). The interlinkage magnetic flux does not become 0 when it is on the same horizontal line as), but the interlinkage magnetic flux is at a position where the mutual inductance between the superconducting coils 20, 20 'and the conductor coils 1, 1'is 0. Becomes 0, and the electromagnetic running resistance becomes 0.

Therefore, in the present invention, the superconducting coils 20, 20 'and the conductor coils 1, 1'are set to have such a positional relationship when the wheels are traveling. Thereby, the present invention covers the case where the coils 2, 2 ', 3, 3'have the same shape and the same size, or do not have them.

(Effects of the Invention) The main effects of the present invention are as follows.

1) As the ground equipment, it is sufficient to continuously provide a pair of conductor coils on both side surfaces of the trackway.
Compared with the method shown in FIG. Therefore, at the time of laying, it is not necessary to manage the design accuracy on the bottom of the track as in the conventional case, and the invested capital for laying can be reduced.

2) Electromagnetic running resistance during running of the vehicle can be suppressed to 0 or extremely small, whereby energy consumption for running the vehicle can be saved as compared with the conventional case. In addition, unlike the conventional method, an unstable spring in the left-right direction does not occur, and stable floating and guiding force are guaranteed.

3) The connection point 151 that is embedded in the track and connects the conductor coils 15 and 15 'for guide only in the above-mentioned first influential method and the conductor coil 161 also used for levitation and guidance in the second influential method. Since the voltage of the propulsion power source is not applied to the connecting wires 162 and 163 connecting the electric wires 161 'and 161', the conductor coil and the connecting wire need only be for low voltage.
On the other hand, the present invention is characterized in that the pair of conductor coils 1, 1'can fulfill all the functions of levitating, guiding and propelling, so that the conductor coils 1, 1'are connected to each other. The connection lines 4 and 5 must have a high breakdown voltage. However, how much high voltage must be applied for propulsion depends on the weight of the moving body, more specifically, on the number of train cars, and if the number of trains is reduced, the applied voltage will also be increased. It can be reduced by that much, and the design and implementation for high withstand voltage become so easy. In this sense, the present invention is suitable as a device for levitation, guidance, and propulsion of a train having a relatively small number of rolling stock.

[Brief description of drawings]

1 is a partial sectional side view showing an embodiment of the present invention, FIG. 2 (a) is a circuit diagram showing an arrangement example of conductor coils in FIG. 1, and FIG. 2 (b) is a circuit diagram of FIG. FIG. 3 is a circuit diagram showing a current flow for levitation flowing through the conductor coils 1 and 1 ′. FIG. 3 is a partial sectional view showing a first effective levitation / guide propulsion mechanism for reducing electromagnetic running resistance. Side view, Fig. 4 is third
FIG. 5 is a circuit diagram showing an arrangement example of one side of the conductor coil dedicated to guiding and the conductor coil also used for levitation propulsion, and FIG. 5 is a current for levitation flowing in the conductor coil also used for levitation propulsion in FIG. 6 is a circuit diagram showing the flow of electric current for propulsion flowing through the conductor coil which also functions as the levitation propulsion in FIG. 4, and FIG. 7 is a circuit diagram showing electromagnetic running resistance. A circuit diagram showing a second effective levitating, guiding, and propulsion mechanism, and FIG. 8 is the conductor coils 161 and 16 in FIG.
1'is a circuit diagram showing the flow of current for levitation, FIG. 9 is a circuit diagram showing the flow of current for guiding to the conductor coils 161, 161 'in FIG. 7, and FIG. FIG. 11 (a) is a partial cross-sectional side view showing an example of the induction repulsion type magnetic levitation railway, FIG. 11 (a) is a perspective view showing the relationship between the on-vehicle superconducting coil and the levitation conductor coil on the ground in FIG. 11 (b) is a diagram showing the magnetic flux induced in the floating conductor coil on the ground in FIG. 11 (a), and FIG. 11 (c) shows the voltage generated by the magnetic flux in FIG. 11 (b). Fig. 11 (d) is a diagram showing the current generated by the voltage shown in Fig. 11 (c), and Fig. 11 (e) is a superconducting coil on the vehicle in Fig. 10 and for levitation on the ground. FIG. 12 is a cross-sectional view for explaining the induction direction of the electric current between the conductor coil and FIG. A diagram showing the relationship between the traveling speed and the induced current in the repellent magnetic levitation railway, and FIG. 13 is a circuit showing the electrical connection of the superconducting coil on the vehicle and the conductor coil for both ground guidance and propulsion in FIG. It is a figure. 1, 1 '... Conductor coil, 2, 2' ... Upper conductor coil, 3, 3 '... Lower conductor coil, 4, 5 ...
Connection line, 6 ... Propulsion power source, 12,12 ... Auxiliary wheel,
13 ... Orbital path, 20, 20 '... Superconducting coil, V ...
…vehicle

Claims (2)

[Claims] 1. A vehicle for levitating, guiding and propelling along a trackway a vehicle in which superconducting coils are vertically arranged continuously on both side surfaces along the vehicle traveling direction at a predetermined interval. On both sides, an upper conductor coil and a lower conductor coil are arranged so as to face each other, and an upper conductor coil and a lower conductor coil are respectively null-flux-connected to each other to form a conductor coil. Arranged at predetermined intervals along the traveling direction of the vehicle, the upper conductor coil and the other upper conductor coil facing the upper conductor coil are further null-flux connected via a connecting wire, and the connecting wire is also connected. Levitating, guiding, and propulsion device for an inductive repulsive magnetic levitation railway consisting of connecting a power supply for propulsion to the 2. When the vehicle is traveling through auxiliary wheels,
The induction according to claim 1, wherein the superconducting coil mounted on the vehicle and the null-flux-connected conductor coil arranged in the track path are set in a positional relationship such that mutual inductance between them is zero. Levitating magnetic levitation railway levitation, guidance, and propulsion combination device