Wave power efficiency gain system

Abstract

A wave power efficiency gain system includes a base, a swing arm, an energy conversion device, and a float. The swing arm is pivotally connected to the base about a first axis and has a first end and a second end distal to the first axis. The energy conversion device is connected between the first end and the base. The float includes a hollow housing, a swing device, a fixing device, a measuring device, and a processor. The hollow housing is connected to the second end and has a receiving space. The swing device is located in the receiving space and includes a swing member and a counterweight member. The swing member is pivotally connected to the hollow housing about a second axis, which is parallel to the first axis. The counterweight member is connected to the swing member and distal to the second axis. The fixing device is disposed on the hollow housing and connected to the swing member. The measuring device is located in the receiving space and disposed on the hollow housing. The processor is signal connected to the measuring device and the fixing device and controls the fixing device. The wave power efficiency gain system can effectively change its overall moment of force with the wave rise and fall without increasing additional power sources, thereby improving the operating efficiency.

Description

Technical Field

[0001] This invention relates to a wave power generation efficiency gain system. Background Technology

[0002] With the increasing demand for electricity and environmental concerns, various power generation systems utilizing natural resources have emerged in the market, among which the conversion of wave kinetic energy into electricity is becoming increasingly popular. However, the energy conversion efficiency of conventional power generation systems still has room for improvement, and due to architectural limitations, they can only be installed near waves, leading to problems such as wave erosion and difficult maintenance. Therefore, considering cost, how to effectively improve energy conversion efficiency while maintaining low costs is undoubtedly a crucial issue of great concern to the industry. Summary of the Invention

[0003] One of the objectives of this invention is to provide a wave power generation efficiency enhancement system that can effectively change its overall torque with the rise and fall of waves without adding an additional power source, thereby improving operational efficiency.

[0004] According to one embodiment of the present invention, a wave power generation efficiency enhancement system includes a base, a swing arm, an energy conversion device, and a float. The swing arm is pivotally connected to the base about a first axis. The swing arm has opposing first and second ends, which are located away from the first axis. The energy conversion device connects the first end to the base and is configured to connect to the power conversion device. The float includes a hollow shell, a oscillating device, a fixing device, a measuring device, and a processor. The hollow shell is connected to the second end and has a receiving space. The oscillating device is located in the receiving space. The oscillating device includes at least one swinging member and a counterweight. The at least one swinging member is pivotally connected to the hollow shell about a second axis, which is parallel to the first axis. The counterweight is connected to the at least one swinging member and is located away from the second axis, and is configured to oscillate relative to the hollow shell about the second axis. The fixing device is disposed in the hollow shell and connected to the at least one swinging member, and is configured to fix the oscillating device relative to the hollow shell. The measuring device is located in the receiving space and disposed in the hollow shell, and is configured to measure at least one physical data of the oscillating device. The processor signal connects the measuring device and the fixing device, and is configured to control the fixing device based on at least one measured physical data.

[0005] In one or more embodiments of the present invention, the energy conversion device described above includes at least one hydraulic cylinder, which is fluidly connected to the power conversion device and pivotally connected to the first end and the base.

[0006] In one or more embodiments of the present invention, the swing arm described above includes at least one sub-swing arm. The at least one sub-swing arm includes an extension section, a base section, and a pivot portion. The extension section defines a second end. The base section defines a first end. The pivot portion connects the extension section and the base section, and the pivot portion is pivotally connected to the base section about a first axis.

[0007] In one or more embodiments of the present invention, the aforementioned extension segment has a first length relative to the first axis, and the base segment has a second length relative to the first axis, wherein the first length is greater than the second length.

[0008] In one or more embodiments of the present invention, the aforementioned extension segment extends at least partially along a first direction, the base segment extends at least partially along a second direction, and the first direction intersects the second direction.

[0009] In one or more embodiments of the present invention, the base includes a base and at least one connecting seat. At least one hydraulic cylinder is pivotally connected to the base. At least one connecting seat is disposed on the base, and the pivoting portion is pivotally connected to the connecting seat about a first axis.

[0010] In one or more embodiments of the present invention, the aforementioned swing arm further includes at least one first support member. There are multiple sub-swing arms, which are parallel to each other, and at least one first support member connects adjacent sub-swing arms in the extension section.

[0011] In one or more embodiments of the present invention, the swing arm further includes a second support member, and there are at least one or more sub-swing arms that are parallel to each other, with the second support member connecting adjacent ones in the pivot portion.

[0012] In one or more embodiments of the present invention, the above-described fixing device and measuring device are arranged at least partially along the second axis.

[0013] In one or more embodiments of the present invention, the above-mentioned fixing device is a braking device.

[0014] The above-described embodiments of the present invention have at least the following advantages:

[0015] (1) By setting the float in the space and combining the swing device and the fixed device, the wave power generation efficiency gain system can effectively change and fix the overall torque of the float and the swing arm relative to the first axis without adding an additional power source, thereby increasing the kinetic energy that the energy conversion device can receive, so as to improve the operating efficiency of the wave power generation efficiency gain system.

[0016] (2) In the event of severe weather, in order to reduce the chance of damage to the wave power generation efficiency gain system, the combination of the oscillating device and the fixed device in the floating body can be operated in reverse to increase the resistance of the floating body and the oscillating arm as they rise and fall with the waves. Attached Figure Description

[0017] Figure 1 A three-dimensional schematic diagram of a wave power generation efficiency gain system according to an embodiment of the present invention is provided.

[0018] Figure 2 For illustration Figure 1 A three-dimensional schematic diagram of the wave power generation efficiency gain system from another perspective;

[0019] Figure 3 For illustration Figure 1 An enlarged schematic diagram of the range Z;

[0020] Figure 4 For illustration Figure 1 A partial perspective 3D view of the floating body;

[0021] Figure 5 For illustration Figure 1 A schematic diagram of the operation of a wave power generation efficiency enhancement system, in which a floating body is preparing to descend with the waves;

[0022] Figure 6 For illustration Figure 1 A schematic diagram of the operation of a wave power generation efficiency enhancement system, in which a floating body is preparing to rise with the waves.

[0023] [Symbol Explanation]

[0024] 100: Wave power generation efficiency gain system

[0025] 110:Abutment

[0026] 111: Base

[0027] 112: Connector

[0028] 120: Arm Swing

[0029] 120a: First end

[0030] 120b: Second end

[0031] 121: Spinning Arm

[0032] 1211: Extension

[0033] 1212: Abutment Section

[0034] 1213: Pivotal section

[0035] 122: First support component

[0036] 123: Second support component

[0037] 130: Energy conversion device

[0038] 131: Hydraulic cylinder

[0039] 140:Floating body

[0040] 141: Hollow shell

[0041] 142: Oscillating device

[0042] 1421: Counterweight

[0043] 1422: Oscillating component

[0044] 143: Fixture

[0045] 144: Measuring device

[0046] 145: Processor

[0047] 200: Power conversion device

[0048] D1: First Direction

[0049] D2: Second Direction

[0050] L1: First Length

[0051] L2: Second Length

[0052] m1, m2, m3: Center of gravity

[0053] X1: First axis line

[0054] X2: Second axis

[0055] SP: Compartment Space

[0056] Z: Range Detailed Implementation

[0057] The following describes several embodiments of the present invention with reference to the accompanying drawings. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and elements will be shown in the drawings in a simple schematic manner, and in all drawings, the same reference numerals will be used to denote the same or similar elements. And, where feasible, features of different embodiments can be interchanged.

[0058] Unless otherwise defined, all terms used herein (including technical and scientific terms) have their ordinary meanings, meanings that are understandable to those skilled in the art. Furthermore, the definitions of the foregoing terms in commonly used dictionaries should be interpreted in the context of this specification as having the meaning consistent with the relevant field of this invention. Unless specifically defined, these terms will not be construed as having idealized or overly formal meanings.

[0059] Please refer to Figures 1-2 . Figure 1 A three-dimensional schematic diagram is provided to illustrate a wave power generation efficiency gain system 100 according to an embodiment of the present invention. Figure 2 For illustration Figure 1 A three-dimensional schematic diagram of the wave power generation efficiency enhancement system 100 from another perspective. In this embodiment, as... Figures 1-2 As shown, a wave power generation efficiency enhancement system 100 includes a base 110, a swing arm 120, an energy conversion device 130, and a float 140. The base 110 is adapted to be fixed on an offshore / shore-based structure (not shown). The swing arm 120 is pivotally connected to the base 110 about a first axis X1. The base 110 and the float 140 are arranged in a first direction D1, and the first axis X1 is perpendicular to the first direction D1. The swing arm 120 has opposing first ends 120a and second ends 120b, which are located away from the first axis X1. The energy conversion device 130 connects the first end 120a of the swing arm 120 to the base 110 and is configured to connect to a power conversion device 200. The float 140 connects to the second end 120b of the swing arm 120 and is adapted to float in waves (not shown). In this embodiment, the waves can be, but are not limited to, seawater or pool waves. Specifically, when waves appear, the float 140, together with the swing arm 120, rotates relative to the base 110 around the first axis X1 as the waves rise and fall. The energy conversion device 130 converts the kinetic energy generated by the float 140 and the swing arm 120 into other forms of energy, such as converting the kinetic energy into hydraulic pressure, and transmits it to the power conversion device 200 to convert the hydraulic pressure into electrical energy for storage.

[0060] Structurally speaking, such as Figures 1-2 As shown, in this embodiment, the swing arm 120 includes two sub-swing arms 121, which are parallel to each other. Each sub-swing arm 121 includes an extension 1211, a base section 1212, and a pivot portion 1213. The pivot portion 1213 connects the extension 1211 and the base section 1212, and the pivot portion 1213 is pivotally connected to the base 110 about a first axis X1. The end of the extension 1211 away from the pivot portion 1213 defines a second end 120b, while the end of the base section 1212 away from the pivot portion 1213 defines a first end 120a. In other embodiments, the swing arm 120 may include only one sub-swing arm 121, meaning that the number of sub-swing arms 121 can be adjusted as needed, as long as it can support the float 140, and is not limited thereto.

[0061] Specifically, such as Figure 1As shown, the extension segment 1211 has a first length L1 relative to the first axis X1, while the base segment 1212 has a second length L2 relative to the first axis X1. In this embodiment, the first length L1 of the extension segment 1211 is greater than the second length L2 of the base segment 1212, that is, the second end 120b is further away from the first axis X1 relative to the first end 120a. For example, the first length L1 is approximately 10 times the second length L2, such that when the second end 120b is subjected to force, the first end 120a can leverage approximately 10 times the force relative to the second end 120b.

[0062] Furthermore, such as Figures 1-2 As shown, the extension 1211 of each of the swing arms 120 extends along the first direction D1, and the base segment 1212 extends along the second direction D2, where the first direction D1 and the second direction D2 intersect. Furthermore, the first axis X1 is perpendicular to the second direction D2.

[0063] In practical applications, such as Figures 1-2 As shown, the swing arm 120 also includes at least one first support member 122, which connects adjacent members in the extension 1211 to improve the structural strength of the swing arm 120. For example, the first support member 122 is cross-shaped.

[0064] Furthermore, such as Figures 1-2 As shown, the swing arm 120 also includes a second support member 123, which connects adjacent members in the pivot portion 1213 to improve the structural strength of the swing arm 120.

[0065] Please refer to Figure 3 . Figure 3 For illustration Figure 1 A magnified diagram of the range Z. In practical applications, such as... Figure 3 As shown, the energy conversion device 130 includes a plurality of hydraulic cylinders 131, each of which is fluid-connected (e.g., hydraulic oil) to the power conversion device 200 and pivotally connected to the first end 120a of the swing arm 120 and the base 110, respectively. Specifically, the hydraulic cylinders 131 are configured to convert the kinetic energy generated by the float 140 and the swing arm 120 into hydraulic pressure, which the power conversion device 200 stores and then uses to drive a hydraulic motor, which in turn drives a generator set to generate electrical energy for storage. In other embodiments, the energy conversion device 130 may include only one hydraulic cylinder 131, meaning the number of hydraulic cylinders 131 can be adjusted as needed and is not limited thereto. More specifically, when the float 140 (see also...) Figures 1-2When the swing arm 120 and the base 110 rotate repeatedly around the first axis X1 as the waves rise and fall, the first end 120a of the base section 1212 rotates repeatedly around the first axis X1, causing the hydraulic cylinder 131 to perform telescopic movements and increase the hydraulic pressure in the hydraulic cylinder 131.

[0066] Furthermore, such as Figure 3 As shown, the base 110 includes a base 111 and a plurality of connecting seats 112. The base 111 is adapted to be fixed to an offshore / shore-based structure, and a hydraulic cylinder 131 is pivotally connected to the base 111. The connecting seats 112 are disposed on the base 111, and the pivot portion 1213 of each of the sub-arms 121 is pivotally connected to a corresponding connecting seat 112 about a first axis X1.

[0067] It is worth noting that, in this embodiment, such as Figures 1-3 As shown, the energy conversion device 130 is connected between the base section 1212 of the swing arm 120 and the base 110, which makes it convenient for workers to stand on the base 110 to inspect and maintain it.

[0068] Please refer to Figure 4 . Figure 4 For illustration Figure 1 A partial perspective perspective view of the float 140. In this embodiment, as... Figure 4 As shown, the float 140 includes a hollow shell 141 (shown in partial perspective), a oscillating device 142, and a fixing device 143. The hollow shell 141 is connected to the second end 120b of the swing arm 120, and has a receiving space SP to allow the hollow shell 141 to generate greater buoyancy in the water. The oscillating device 142 is located in the receiving space SP and is pivotally connected to the hollow shell 141 about a second axis X2, which is parallel to the first axis X1 (see [reference to first axis X1]). Figures 1-3 Furthermore, the second axis X2 is perpendicular to both the first direction D1 and the second direction D2 (see also...). Figures 1-2 When the float 140, together with the swing arm 120, rotates relative to the base 110 around the first axis X1 as the waves rise and fall, the oscillating device 142 oscillates relative to the hollow shell 141 around the second axis X2. This causes a change in the horizontal distance of the center of gravity of the oscillating device 142 relative to the first axis X1, and simultaneously changes the overall torque of the float 140 and the swing arm 120 relative to the first axis X1. A fixing device 143 is disposed on the hollow shell 141 and connected to the oscillating device 142. The fixing device 143 is configured to fix the oscillating device 142 relative to the hollow shell 141, so that the oscillating device 142 no longer oscillates relative to the hollow shell 141 around the second axis X2.

[0069] In practical applications, the fixed device 143 is a braking device, such as, but not limited to, magnetic powder brakes, disc brakes, drum brakes, hydraulic brake cylinders, and rotary brakes.

[0070] More specifically, such as Figure 4 As shown, the pendulum device 142 includes a counterweight 1421 and two pendulum members 1422 (the two pendulum members 1422 are opposite to each other, and one of the pendulum members 1422 is at...). Figure 4 (The center is obscured). The counterweight 1421 is positioned away from the second axis X2 and is configured to swing relative to the hollow shell 141 about the second axis X2. The swinging member 1422 is connected to the counterweight 1421 and pivotally connected to the hollow shell 141 about the second axis X2, so that it swings with the counterweight 1421 relative to the hollow shell 141 about the second axis X2. Furthermore, the fixing device 143 is also connected to at least one swinging member 1422. For example, the fixing device 143 has a shaft extending along the second axis X2, and the swinging member 1422 is sleeved on the shaft. The number of swinging members 1422 can be varied according to requirements, such as one, three, or four, as long as they can connect to the counterweight 1421 and swing with it about the second axis X2 as the axis; there is no limitation here.

[0071] Furthermore, such as Figure 4 As shown, the float 140 also includes a measuring device 144 and a processor 145. The measuring device 144 is located in the accommodating space SP and disposed in the hollow shell 141, and the fixing device 143 and the measuring device 144 are arranged at least partially along the second axis X2. The measuring device 144 is configured to measure at least one physical data of the oscillating device 142, such as the position (including but not limited to horizontal position, angular position, and vertical position), speed, or acceleration of the counterweight 1421. The processor 145 is signal-connected to the measuring device 144 and the fixing device 143, and is configured to control the fixing device 143 according to the physical data measured by the measuring device 144 to fix or release the oscillating device 142.

[0072] Please refer to Figure 5 . Figure 5 For illustration Figure 1 A schematic diagram of the operation of the wave power generation efficiency enhancement system 100, in which the float 140 is preparing to descend with the wave. For the sake of simplicity and clarity, the diagram is shown below. Figure 5 In the diagram, each component is shown schematically only. m1 is the center of gravity of the swing arm 120, m2 is the center of gravity of the oscillating device 142, and m3 is the center of gravity of the float 140 minus the center of gravity of the oscillating device 142. For example... Figure 5As shown, when the float 140 is preparing to descend with the waves (moving from the position shown by the solid line to the position shown by the dashed line), and the oscillating device 142 swings relative to the hollow shell 141 around the second axis X2 and away from the first axis X1, the center of gravity m2 of the oscillating device 142, relative to the float 140 minus the center of gravity m3 of the oscillating device 142, moves away from the first axis X1. This effectively increases the overall torque of the float 140 and the swing arm 120 relative to the first axis X1 (i.e., the sum of the torques of the centers of gravity m1, m2, and m3 relative to the first axis X1). In this way, the float 140 and the swing arm 120 can rotate downwards with the waves with greater force, and the kinetic energy that the energy conversion device 130 can receive is also effectively increased. This is beneficial for improving the operational efficiency of the wave power generation efficiency gain system 100.

[0073] Furthermore, under the above circumstances, when buoy 140 is preparing to descend with the waves, please also refer to... Figure 4 The measuring device 144 can measure physical data such as the position, speed, or acceleration rate of the counterweight 1421. Based on this physical data, the processor 145 determines that the pendulum device 142 is swinging relative to the hollow shell 141 around the second axis X2 and away from the first axis X1, and controls the fixing device 143 to fix the position of the pendulum device 142 relative to the hollow shell 141. After the float 140 has finished descending with the waves, the processor 145 controls the fixing device 143 to release the pendulum device 142.

[0074] Please refer to Figure 6 . Figure 6 For illustration Figure 1 A schematic diagram of the operation of the wave power generation efficiency enhancement system 100, in which the float 140 is preparing to rise with the wave. Similarly, for the sake of simplicity and clarity in the accompanying diagram... Figure 6 In the diagram, each component is shown schematically only. m1 is the center of gravity of the swing arm 120, m2 is the center of gravity of the oscillating device 142, and m3 is the center of gravity of the float 140 minus the center of gravity of the oscillating device 142. For example... Figure 6 As shown, when the float 140 is preparing to rise with the waves (moving from the position shown by the solid line to the position shown by the dashed line), and the oscillating device 142 oscillates relative to the hollow shell 141 around the second axis X2 and approaches the first axis X1, the center of gravity m2 of the oscillating device 142 relative to the float 140 minus the center of gravity m3 of the oscillating device 142 approaches the first axis X1. This effectively reduces the overall torque of the float 140 and the swing arm 120 relative to the first axis X1 (i.e., the sum of the torques of the centers of gravity m1, m2, and m3 relative to the first axis X1). In this way, the resistance of the float 140 and the swing arm 120 as they rotate upwards with the waves is reduced, and the kinetic energy that the energy conversion device 130 can receive is effectively increased. This is beneficial to improving the operational efficiency of the wave power generation efficiency gain system 100.

[0075] Furthermore, under the above circumstances, when buoy 140 is preparing to rise with the waves, please also refer to... Figure 4 The measuring device 144 can measure physical data such as the position, speed, or acceleration rate of the counterweight 1421. Based on this physical data, the processor 145 determines that the pendulum device 142 is swinging relative to the hollow shell 141 around the second axis X2 and approaching the first axis X1, and controls the fixing device 143 to fix the position of the pendulum device 142 relative to the hollow shell 141. After the float 140 has completed rising with the waves, the processor 145 controls the fixing device 143 to release the pendulum device 142.

[0076] By combining the oscillating device 142 and the fixing device 143 within the accommodating space SP with the float 140, the wave power generation efficiency enhancement system 100 can effectively change and fix the overall torque of the float 140 and the swing arm 120 relative to the first axis X1 without adding an additional power source, thereby increasing the kinetic energy that the energy conversion device 130 can receive, and improving the operating efficiency of the wave power generation efficiency enhancement system 100.

[0077] In practical applications, to reduce the chance of damage to the wave power generation efficiency gain system 100 during severe weather, the pairing of the oscillating device 142 and the fixing device 143 within the float 140 can be reversed to increase the resistance of the float 140 and the swing arm 120 as they rise and fall with the waves. For example, when the float 140 is preparing to descend with the waves, the fixing device 143 can fix the position of the oscillating device 142 when it approaches the first axis X1, thereby reducing the overall torque of the float 140 and the swing arm 120 relative to the first axis X1, thus reducing the assistance of the float 140 in descending with the waves. Conversely, when the float 140 is preparing to rise with the waves, the fixing device 143 can fix the position of the oscillating device 142 when it moves away from the first axis X1, thereby increasing the overall torque of the float 140 and the swing arm 120 relative to the first axis X1, thus increasing the resistance of the float 140 in rising with the waves.

[0078] In summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages:

[0079] (1) By setting the float in the space and combining the swing device and the fixed device, the wave power generation efficiency gain system can effectively change and fix the overall torque of the float and the swing arm relative to the first axis without adding an additional power source, thereby increasing the kinetic energy that the energy conversion device can receive, so as to improve the operating efficiency of the wave power generation efficiency gain system.

[0080] (2) In the event of severe weather, in order to reduce the chance of damage to the wave power generation efficiency gain system, the combination of the oscillating device and the fixed device in the floating body can be operated in reverse to increase the resistance of the floating body and the swing arm as they rise and fall with the waves.

[0081] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Any person skilled in the art may make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A wave power generation efficiency gain system, characterized in that, Include: A base; A swing arm is pivotally connected to the base about a first axis. The swing arm has a first end and a second end opposite to each other, the first end and the second end being away from the first axis. An energy conversion device, connecting the first end to the base, and configured to connect a power conversion device; and A floating body, comprising: A hollow shell, connected to the second end, and having an accommodating space; A pendulum device is located in the receiving space, the pendulum device comprising: At least one swinging member is pivotally connected to the hollow shell about a second axis parallel to the first axis; and A counterweight is connected to the at least one swinging member and is located away from the second axis. The counterweight is configured to swing relative to the hollow shell about the second axis. A fixing device is disposed on the hollow shell and connected to the at least one swinging member, the fixing device being configured to fix the swinging device relative to the hollow shell; A measuring device is located in the accommodating space and disposed in the hollow shell, the measuring device being configured to measure at least one physical data of the oscillating device; as well as A processor is signal-connected to the measuring device and the fixing device, and configured to control the fixing device based on the measured at least one physical data.

2. The wave power generation efficiency gain system as described in claim 1, characterized in that, The energy conversion device includes at least one hydraulic cylinder, which is fluidly connected to the power conversion device and pivotally connected to the first end and the base.

3. The wave power generation efficiency gain system as described in claim 2, characterized in that, The swing arm includes at least one sub-swing arm, which includes: An extension segment defines the second end; A base segment, defining the first end; and A pivot joint is provided between the extension section and the base section, and the pivot joint is pivotally connected to the base section around the first axis.

4. The wave power generation efficiency gain system as described in claim 3, characterized in that, The extension segment has a first length relative to the first axis, and the base segment has a second length relative to the first axis, the first length being greater than the second length.

5. The wave power generation efficiency gain system as described in claim 3, characterized in that, The extension segment extends at least partially along a first direction, and the base segment extends at least partially along a second direction, the first direction intersecting the second direction.

6. The wave power generation efficiency gain system as described in claim 3, characterized in that, The base includes: A base, wherein at least one hydraulic cylinder is pivotally connected to the base; and At least one connector is disposed on the base, and the pivot portion is pivotally connected to the connector about the first axis.

7. The wave power generation efficiency gain system as described in claim 3, characterized in that, The swing arm also includes at least one first support member, and there are multiple sub-swing arms that are parallel to each other. The at least one first support member is connected between two adjacent extensions.

8. The wave power generation efficiency gain system as described in claim 3, characterized in that, The swing arm also includes a second support member. The number of the at least one sub-swing arm is multiple, and the sub-swing arms are parallel to each other. The second support member is connected between adjacent pivots.

9. The wave power generation efficiency gain system as described in claim 1, characterized in that, The fixing device and the measuring device are arranged at least partially along the second axis.

10. The wave power generation efficiency gain system as described in claim 1, characterized in that, The fixing device is a braking device.

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