JP6273045B2 - Wave power buoy and wave power generation system including the same - Google Patents

Description

  The present invention relates to a buoy for wave power generation and a wave power generation system including the buoy, and more particularly, to transmit power more efficiently without leaking the motion of a buoy that floats in the ocean and moves in six degrees of freedom by waves. The present invention relates to a wave power buoy that can maximize production efficiency and a system thereof.

  There are two types of buoys: fixed buoys and drifting buoys. Data is sent to the Japan Meteorological Agency by observing wind direction, wind speed, temperature, humidity, water temperature, atmospheric pressure, wave height, wave period, wave direction, etc. Is used as a useful auxiliary tool for weather forecasting.

  Development of wave power generators that use such buoys to convert the flow of waves into motive power to rotate the generator and produce electrical energy by the rotational movement of the generator is being actively promoted.

As a technology related to a buoy and a wave power generation system that converts a conventional wave flow into motive power, Japanese Patent Application Publication No. 2004-0026588 discloses that a generator is driven from the wave flow using the vertical motion of a floating ball. As for a wave power generator capable of producing electrical energy, if the vertical motion of the floating ball is converted into a one-way rotational motion by the power transmission intermittent member of the power conversion unit, then this can be used to There is disclosed a wave power generator configured to produce electric energy by supplying a power generation unit after production control of compressed air at a constant pressure by a pressure control unit. In this content, the floating ball converts the movement of the vertical movement into power, and other movements do not affect the production of power.
Also, in the published patent No. 2014-0141714, the wave energy conversion device floats on the sea surface, and the horizontal component of wave motion is converted vertically by a sliding vertical converter to increase the energy extraction capacity. The movement is limited.

  Such conventional prior art has a problem that power production efficiency is not high because only a part of the movement of the buoy is transmitted and converted into electric power. That is, to transmit electric power by transmitting only part of the movement of the buoy moving in 6 degrees of freedom (transition in X, Y, Z direction, rotation of yaw / pitch / roll), for movement not used The power production efficiency will be reduced.

  Therefore, there is an urgent need for research on mechanisms that effectively transmit buoy movements to increase power production efficiency.

  The object of the present invention was created to enable more efficient production of electrical energy using wave force, and not only the traditional limited vertical movement but also three-way movement and three-way It is to provide a wave power generation buoy and a wave power generation system including the same.

  Another object of the present invention includes a wave power generation buoy that can absorb and transmit all the movements of the buoy, and can produce electric power even with a small wave, and is advantageous for sustainable power production, and the like. It is to provide a wave power generation system.

  In addition, the object of the present invention includes a wave power generation buoy more advantageous for coastal power generation in which a part of the power generation equipment can be disposed inland because the movement of the buoy can be efficiently absorbed, and the same. It is to provide a wave power generation system.

  A buoy according to an embodiment of the present invention includes a main body part that floats due to a wave motion, and a coupling part that is formed in at least three locations of the main body part and to which the main body part and a plurality of power transmission members are connected. May be.

  The main body may be any one of a plate shape, an elliptical column, a cylinder, and a polygonal column.

  The main body may include a convex surface protruding upward.

  Further, the power transmission member may be any one of a wire, a rope, a chain, and a sprocket.

  Moreover, a hole may be formed in a part of the main body, and water may pass through the hole.

  Moreover, you may further provide the partition-shaped extension part formed in one surface of the said main-body part.

  In addition, the extension part may be composed of a plurality of parts, extend from the center of the main body part, and be arranged in the circumferential direction of the main body part at a certain angle.

  The coupling portion may be formed such that a part of the power transmission member is wound around the main body portion.

  A buoy according to another embodiment of the present invention includes a main body part that floats by wave motion, an extension part formed on one side of the main body part, the extension part formed on the extension part, and the main body part and the power transmission member. May be provided.

  The main body may include a convex surface protruding upward.

  A wave power generation system according to an embodiment of the present invention includes a buoy that floats in the ocean and flows by wave motion, a plurality of power transmission members that are coupled to the buoy at at least three of the buoys, A part of the motive power transmitted from the power transmission member produces electric energy, and the remaining part of the motive power is configured to be stored, and a power conversion device configured to store the electric energy from the motive power transmitted from the power conversion apparatus. You may provide the motive power generator to produce.

  The buoy may be any one of a plate shape, an elliptical column, a cylinder, a polygonal column, and a dome shape.

  Moreover, a hole may be formed in a part of the buoy, and water may pass through the hole.

  The wave power generation system may further include a partition-like extension formed on one surface of the main body of the buoy.

  It was created in order to enable more efficient production of electric energy using wave power based on such a configuration, and not only the conventional limited vertical movement but also movement in three directions and 3 All the rotational motion in the direction is transmitted, so more power can be obtained from the waves.

  Moreover, since all the movements of the buoy can be absorbed and transmitted, it is possible to produce power even with a small wave, which is advantageous for sustainable power production.

  Moreover, since the movement of a buoy can be absorbed efficiently, it is more advantageous to coastal power generation in which part of the power generation equipment can be located inland.

It is a figure showing a wave power generation system concerning one embodiment. It is a perspective view of the buoy concerning one embodiment. It is a side view of the buoy concerning another embodiment. It is a figure which shows the lower part of the buoy which concerns on one Embodiment. It is a figure which shows the lower part of the buoy which concerns on another embodiment. It is a side view of the buoy concerning one embodiment.

  FIG. 1 is a view showing a wave power generation system according to an embodiment, and FIG. 2 is a perspective view of a buoy according to the embodiment.

  1 and 2, a wave power generation system 500 includes a buoy 100, a power transmission member 200, a power conversion device 300, and a power generation device 400, and can produce electric energy using kinetic energy of waves. it can.

  The buoy 100 may float on the waves. The buoy 100 may include a main body 110 for flowing while floating in a wave, and a partition-like extension 120 formed on one side of the main body 110.

  The coupling part 130 may be formed at three or more different positions on one surface of the main body part 110. The power transmission member 200 may be wound around one side of the main body 110 to form the coupling portion 130, or the coupling portion 130 may be formed in the form of a hook, bolt fastening, riveting, a ball joint, or a universal joint.

  The form of the coupling | bond part 130 is not limited to this, You may use the form with which the power transmission member 200 is couple | bonded with the main-body part 110. FIG.

  The form of the main body 110 may be any one of a plate shape, an elliptical column, a cylinder, a polygonal column, and a dome shape.

  The main body 110 may be configured in a disc shape depending on each shape, shape, material, function, characteristic, effect, and coupling relationship, or may be configured in various forms without being limitedly wound around these. . The material may be a material that can float on a wave, and is not limited thereto.

  In addition, the main body 110 may be formed with a part of holes in order to minimize the fact that the power transmission member 200 is cut or the coupling part 130 is damaged due to an excessive wave force.

  Waves are natural phenomena that occur mostly in nature, and their forces and magnitudes are irregular, and sometimes they are excessively large. Here, if the force and magnitude of the waves become excessively large and the force is transmitted to the buoy 100 floating in the ocean, the coupling part 130 or the power transmission member 200 of the buoy 100 may be cut or damaged.

  In the main body 110, a part of the seawater of a wave that is excessively applied by forming a part of the hole passes through the part of the hole of the main body 110, so that the durability of the wave power generation system 500 is improved. May be increased.

  Although the hole of the main-body part 110 is formed in one side surface, it is not limited to this, You may comprise so that seawater may not apply an excessive force to the buoy 100 through an inside or the exterior. The size, shape, and position of the hole are not limited, and a configuration that cancels a certain portion of the excessive force of the wave in its function may be used.

  A partition-like extension 120 is formed on one side of the main body 110, and the extension 120 may increase the efficiency of the movement by allowing the buoy 100 to flow even in a small wave movement. .

  The extension part 120 may be formed on one side surface of the main body part 110 to efficiently transmit the kinetic energy of waves entering from various directions to the main body part 110 so that the main body part 110 floats.

  The extension part 120 may be configured by a plurality of partitions in the vertical direction, but the form and the number of partitions are not limited. The material of the extension 120 is not limited and may be configured to increase the efficiency of the kinetic energy of the buoy 100 by receiving a wave force. The form of the extension 120 will be specifically described below.

  On the other hand, the power transmission member 200 that transmits the movement of the buoy 100 is coupled to the coupling portion 130, and the buoy 100 has a degree of freedom by being coupled at three or more different positions, and can freely move within a certain range. It may be made to flow.

  Further, the power transmission member 200 may prevent the buoy 100 from being detached from a certain range so that continuous power is transmitted to the power conversion device 300.

  The power transmission member 200 will be described in detail. The power transmission member 200 may be formed of a rope or a chain, and may be provided with a roller 210 that is installed on the seabed and can rotate left and right and roll up and down.

  The coupling part 130 is formed at three or more different positions on the main body part 110, and the power transmission member 200 is configured such that the buoy 100 has X, Y, Z axes (Heave, Surge, Sway) and three-axis rotation (Yaw, Pitch, Roll) may be allowed to move. Alternatively, as described above, the coupling part 130 may be formed on one side of the extension part 120.

  Various movements generated by the respective directions and rotations cause movements of the respective ropes and chains to be stretched and pulled, and the power of the reciprocating movement is transmitted by such movements. At the same time, the rope or chain prevents the buoy 100 from leaving a certain range.

  Hereinafter, the power generated by the buoy 100 will be described in detail.

  The buoy 100 flows randomly and variously according to the wave motion. When flowing in one direction by a wave, one rope or chain receives a tensile force and moves in one direction. On the other hand, the other rope or chain receives a pushing force and moves in one direction in the opposite direction.

  Here, a rope or chain that receives a tensile force generates power by moving in one direction while extending. A rope or chain that receives a pushing force generates power by movement in one opposite direction. While such a process is repeated in each power transmission member 200, reciprocating power is generated.

  On the other hand, the roller 210 fixed to the seabed and capable of rotating left and right and rolling up and down is located on the seabed vertically below the buoy 100 floating on the sea surface and serves as a pivot for a rope or chain coupled to the buoy 100. . The roller 210 transmits forces in various directions while rotating, and also allows the vertical motion of the waves to be transmitted to the power conversion device 300 by rolling.

  Next, the movement of the roller 210 will be described in detail.

  The power transmission member 200 is connected to a roller 210 provided on the seabed that can rotate left and right and roll up and down, and flows within a certain range with the roller 210 as a central axis. A roller 210 provided on the seabed that can rotate left and right and roll up and down is rotated and rolled by wave motion so that multi-directional forces of ropes and chains are transmitted to the power converter 300 as linear forces. Further, the buoy 100 is fixed to the seabed so as not to depart from a certain range, and the position of the buoy 100 is suppressed.

  The power conversion device 300 may receive transmission of power converted from multidirectional intermittent power to linear reciprocating motion by a roller 210 provided on the seabed that can rotate left and right and roll up and down.

  The power conversion device 300 converts the transmitted power of the reciprocating motion into a continuous motion in one direction, and partly rotates the output shaft of the power generation device 400 of the power transmission member 200 to produce electric power, When the remaining part of the power is not transmitted from the buoy 100 after being stored in the energy storage device, the output shaft is rotated by the stored energy to continuously supply power to the power generator 400. Also good.

  The motive power generator 400 may continuously generate electric energy by receiving the power converted from the power converter 300. The motive power generator 400 may produce electric energy by driving the generator with unidirectional power that is continuously supplied with the generator inside.

  The motive power generator 400 may be located around an inland coast and may receive a unidirectional force transmitted through the power transmission member 200 to produce continuous electrical energy.

  The power generator 400 of the present invention is located on the shore or on the shore and directly receives the power transmitted to the buoy 100 on the near sea, so that the loss of electrical energy can be minimized, and the costly submarine cable is high. Does not require installation.

  FIG. 3 is a side view of a buoy according to another embodiment, FIG. 4 is a view showing a lower portion of the buoy according to one embodiment, and FIG. 5 shows a lower portion of the buoy according to another embodiment. FIG.

  In FIG. 3, the main body 110 may include a plate shape, and may include an elliptical column, a cylinder, and a polygonal column.

  Or as shown in FIG. 3, the main-body part 110 may comprise the dome shape including the convex surface which protruded at the upper part. The main body 110 may be configured to float by the wave motion, and the shape thereof is not limited thereto.

  An extension 120 may be formed below the main body 110. The extension 120 will be specifically described below.

  Referring to FIGS. 4 and 5, the extension 120 may be formed on one side of the main body 110. The extension part 120 may be composed of a plurality, and may extend from the center of the main body part 110 in the diameter direction of the main body part 110.

  The extension 120 may be arranged in the circumferential direction of the main body 110 while forming a certain angle. For example, the extension part 120 may be configured by three unit bodies and arranged at about 120 degrees as shown in FIG. 4, or the extension part 120 may have four unit bodies or two vertical units. The body may be arranged so as to form about 90 degrees as shown in FIG.

  However, the structure of the extension part 120 is illustrative and is not limited to the above.

  FIG. 6 is a side view of a buoy according to another embodiment.

  Referring to FIG. 6, the coupling part 130 may be formed on one side of the main body part 110 or on one side of the extension part 120. For example, a plurality of extension portions 120 may be provided, and the coupling portion 130 may be formed on one side of each extension portion.

  If the coupling part 130 is formed in the extension part 120, the number of power transmission members can be easily adjusted or the arrangement can be changed by replacing the extension part 120.

  As described above, specific components and the like have been described in the present invention with limited embodiments and drawings, but this is provided to help a more general understanding of the present invention. Further, the present invention is not limited to the above-described embodiment, and the present invention is different without changing its technical idea and essential features as long as it has ordinary knowledge in the field to which the present invention belongs. It will be understood that the present invention can be implemented according to a specific form. Accordingly, it should be understood that the embodiments described above are illustrative in all aspects and not limiting.

DESCRIPTION OF SYMBOLS 100 Buoy 110 Main-body part 120 Extension part 130 Coupling part 200 Power transmission member 210 Roller 300 Power converter 400 Power generator 500 Wave power generation system

Claims (9)

A body part floating by the movement of waves,
An extension formed in a partition shape and connected to the lower part of the main body,
A plurality of coupling portions each formed on one side of the plurality of extension portions and connected to a power transmission member;
Bei to give a,
The plurality of extensions extend from the center of the main body and are arranged in a circumferential direction of the main body while forming a certain angle.
The power transmission member is connected to at least three places of the main body by the coupling portion.
buoy.   The buoy according to claim 1, wherein the main body is one of a plate shape, an elliptical column, a cylinder, and a polygonal column.   The buoy according to claim 1, wherein the main body includes a convex surface protruding upward.   The buoy according to claim 1, wherein the power transmission member is one of a wire, a rope, a chain, and a sprocket.   The buoy according to claim 1, wherein a hole is formed in a part of the main body, and water may pass through the hole. A buoy floating in the ocean and flowing by the movement of waves,
A plurality of power transmission members coupled to the buoy at at least three locations of the buoy;
A power converter configured such that a part of the power transmitted from the power transmission member produces electrical energy and the remaining part is stored;
A roller fixed to the seabed and capable of rotating left and right and rolling up and down, and coupled to the power transmission member to convert the movement of the power transmission member in various directions into a linear movement and to transmit to the power conversion device; ,
A power generator that is located inland and produces electrical energy from the power transmitted from the power converter;
Equipped with wave power generation system. The wave power generation system according to claim 6 , wherein the buoy is one of a plate shape, an elliptical column, a cylinder, a polygonal column, and a dome shape. The wave power generation system according to claim 6 , wherein a hole is formed in a part of the buoy, and water may pass through the hole. The wave power generation system according to claim 6 , further comprising a partition-like extension formed on one surface of the main body of the buoy.

Images