Wave power generation conversion device and power generation system

Abstract

The invention relates to the technical field of wave power generation, in particular to a wave power generation conversion device and a power generation system.The wave power generation conversion device comprises a floating body and a pull rod assembly connected into the floating body in a sliding mode; at least one power generation unit and at least one resonance unit are installed in the floating body, the power generation unit is in power connection with the pull rod assembly, when the floating body floats up and down, the pull rod assembly drives the power generation unit to generate power, and the resonance unit is used for generating power when the floating body floats up and down. According to the wave power generation device, the floating body floating on the water surface is adopted, relative movement is generated between the floating body and the pull rod assembly under driving of up-and-down fluctuation of the waves, the power generation unit is driven by means of the movement to generate power, and therefore the purpose of wave power generation is achieved; and secondly, the resonance unit is matched with the relative movement between the pull rod assembly and the floating body, more wave energy can be captured, the floating body and waves generate resonance, and more energy is captured for power generation.

Description

Technical Field

[0001] This invention relates to the field of wave power generation technology, and in particular to a wave power generation conversion device and power generation system. Background Technology

[0002] Wave energy, as a vast marine renewable energy source, has become an important direction in the energy strategies of countries around the world. Existing wave energy conversion technologies are diverse, mainly including nodding duck type, wave surface raft type, atoll type, rectifier type, float type, sea clam type, soft bag type, oscillating water column type, and contraction channel type, etc.

[0003] However, these technologies generally suffer from significant drawbacks: on the one hand, due to the limitations of complex wave phenomena and water conditions, the wave energy harvesting and conversion rate is low, resulting in high power generation costs, reaching as high as $26.49 / kWh; on the other hand, the energy conversion power per unit area is low, only 0.357kW, and the equipment lifespan is typically only 10-15 years. These problems of low efficiency, high cost, and insufficient reliability have severely hampered the commercial application of wave energy power generation technology, preventing this abundant resource from being effectively developed and utilized to date.

[0004] Therefore, there is an urgent need to develop new wave energy conversion technologies to break through existing technological bottlenecks and improve energy conversion efficiency and economy. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as low wave energy collection and conversion rates leading to high power generation costs, and to propose a wave power generation conversion device and power generation system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a wave power generation conversion device, comprising: A float and a tie rod assembly slidably connected to the float; The float is equipped with at least one power generation unit and at least one resonance unit. The power generation unit is poweredly connected to the tie rod assembly. When the float moves up and down, the tie rod assembly drives the power generation unit to generate electricity. The resonance unit is used to drive the float to resonate with the waves when the float moves up and down. A guide seat is fixedly installed at the bottom of the float to guide the tie rod assembly.

[0007] Furthermore, the power generation unit includes; A support fixed in the float; Gear 1 and Gear 2 are rotatably connected to the bracket and mesh with each other. A one-way bearing is provided between Gear 2 and the bracket. A cascaded flywheel is also fixedly installed on the outer side of Gear 2. The output end of the cascaded flywheel is connected to the input end of the generator.

[0008] Furthermore, the cascaded flywheel includes; A wheel with an internal gear ring formed on the inner ring; A central gear and multiple planetary gears are rotatably connected inside the wheel. The multiple planetary gears mesh inside the internal gear ring and outside the central gear. The shaft end of the central gear is fixedly connected to the input end of the generator.

[0009] Furthermore, the pull rod assembly includes; A tie rod inserted into the float; A rack is installed on at least one outer side of the pull rod, and the rack and the gear mesh for transmission. A mounting cavity and a wiring cavity are also provided on the bottom inner side of the pull rod. An electrically connected rectifier and battery pack are fixedly installed inside the mounting cavity. The power line of the generator is electrically connected to the rectifier along the wiring cavity.

[0010] Furthermore, the tie rod is movably connected to the float via a linear bearing; A sealing ring is also installed between the outer side of the pull rod and the bottom of the float, wherein an upper limit switch and a lower limit switch located inside and outside the float are fixedly installed on the outer side of the pull rod; The bottom of the tie rod is also movably connected to a tie rod post for fixing it to the seabed.

[0011] Furthermore, the resonant unit includes; Wall-mounted fixtures fixed to the inner wall of the float and the outer wall of the tie rod; A hanging arm is rotatably connected to the outside of the wall mount. A swing cylinder is fixedly connected to the end of the hanging arm. A swing rod is movably inserted into the end of the swing cylinder through a linear bearing. The end of the swing rod is rotatably connected to the wall mount outside the pull rod. A linear motor is fixedly installed inside the swing cylinder. A spring is installed between the shaft end of the linear motor and the swing rod. The linear motors on both sides of the pull rod receive pulse current from the control box to assist the pull rod to move up or down, causing the float to resonate.

[0012] Furthermore, multiple cameras are installed at intervals inside the float, and a control unit is fixedly installed on the top of the float. Above the control unit, a water surface detection unit and an antenna are installed in sequence. The water surface detection unit, the camera, and the control unit are electrically connected to form a monitoring system to monitor the operation of the floating body.

[0013] Furthermore, four power generation units are distributed in a matrix along the top, bottom, left, and right sides of the tie rod assembly, and two resonance units are symmetrically arranged along both sides of the tie rod assembly.

[0014] In a second aspect, the present invention provides a wave power generation system, which includes at least one of the above-described conversion devices; It also includes a control box installed on the seabed. The control box and the battery pack inside the float are electrically connected by a cable. A retraction assembly is rotatably connected above the control box. A pull rope is wound around the outside of the retraction assembly. The other end of the pull rope is connected to the pull rod assembly. A pulley is also installed on the seabed to guide the pull rope. The pull rope pulls the pull rod assembly to move it down, which can keep the float submerged below the water surface to avoid damage from extreme weather waves. The pull rod assembly, through the pull rope and the retraction assembly, keeps the float in the optimal position on the water surface.

[0015] Furthermore, the control box is equipped with electrical components, which are electrically connected to the land-based dispatch room via submarine cables. The land-based dispatch room is electrically connected to the user terminal via power transmission and transformation lines.

[0016] The wave power generation conversion device and power generation system proposed in this invention have the following advantages: First, by using a floating body on the water surface, the relative motion between the floating body and the tie rod assembly is generated under the drive of the up-and-down movement of the waves. This motion drives the power generation unit to generate electricity, thus achieving the purpose of wave power generation. Second, by using a resonant unit in conjunction with the relative motion between the tie rod assembly and the floating body, more wave energy can be captured, allowing the floating body to resonate with the waves and capture more energy to generate electricity, thereby promoting the market application of wave power generation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the power generation unit structure according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the resonant unit structure according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the cascaded flywheel structure according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the planetary gear structure according to Embodiment 1 of the present invention. Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0018] In the diagram: 1. Float; 10. Guide seat; 11. Camera; 12. Control unit; 13. Water surface detection unit; 14. Antenna; 2. Pull rod assembly; 21. Pull rod; 22. Rack; 23. Rectifier; 24. Battery pack; 25. Linear bearing one; 26. Sealing ring; 27. Upper limit switch; 28. Lower limit switch; 29. ​​Pull rod column; 3. Power generation unit; 30. One-way bearing; 31. Bracket; 32. Gear one; 33. Gear two; 34. Cascaded flywheel; 341. Wheel; 342. Internal gear ring; 343. Central gear; 344. Planetary gear; 35. Generator; 351. Power cord; 4. Resonance unit; 41. Wall mount; 42. Hanging arm; 43. Swing cylinder; 44. Linear bearing II; 45. Swing rod; 46. Linear motor; 47. Spring; 5. Control box; 51. Cable; 52. Rewind assembly; 53. Pull rope; 54. Pulley; 55. Electrical components; 56. Submarine cable; 57. Land dispatch room; 58. Transmission and transformation line; 59. User end. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example

[0020] Reference Figure 1-5 As one embodiment of the present invention, a wave power generation conversion device is disclosed. Specifically, the rotating device in this embodiment includes a float 1 and a tie rod assembly 2 slidably connected in the float 1. The float 1 is equipped with at least one power generation unit 3 and at least one resonance unit 4. The power generation unit 3 is poweredly connected to the tie rod assembly 2. When the float 1 floats up and down, the tie rod assembly 2 drives the power generation unit 3 to generate electricity. The resonance unit 4 is used to drive the float 1 to resonate with the waves when the float 1 floats up and down. A guide seat 10 for guiding the tie rod assembly 2 is fixedly installed at the bottom of the float 1.

[0021] Specifically, this invention employs a floating body 1 that floats on the water surface. Driven by the up-and-down movement of waves, it generates relative motion with the tie rod assembly 2. This motion drives the power generation unit 3 to generate electricity, thus achieving wave power generation. Secondly, this invention utilizes a resonance unit 4 in conjunction with the relative motion between the tie rod assembly 2 and the floating body 1, which can capture more wave energy, causing the floating body to resonate with the waves and capture more energy to generate electricity, thereby promoting the market application of wave power generation.

[0022] In some embodiments, the power generation unit 3 of the present invention includes; The bracket 31 is fixed in the float 1; Gear 1 32 and gear 2 33 are rotatably connected to the bracket 31, and a one-way bearing 30 is provided between gear 2 33 and the bracket 31; a cascaded flywheel 34 is also fixedly installed on the outer side of gear 2 33, and the output end of the cascaded flywheel 34 is connected to the input end of the generator 35.

[0023] In this embodiment, gear 32 is rotatably connected to the bracket 31 via a shaft and bearing, and gear 33 is rotatably connected to the bracket 31 via a shaft and one-way bearing 30. Since the bearing on gear 33 is a one-way bearing 30, the cascaded flywheel 34 can rotate in the same direction and drive the generator 35 to rotate and generate electricity, thus ensuring the stability of power generation.

[0024] Specifically, the power generation unit 3 is distributed in four columns along the vertical and horizontal matrix of the tie rod assembly 2. That is, the bracket 31 can be configured with four independent units or two horizontally distributed vertically. In this invention, the bracket 31 is preferably configured with two horizontally distributed vertically. Each bracket 31 is equipped with two gears 1 32 and two gears 2 33. Each pair of gears 1 32 and gears 2 33 forms a group and is located on one side of the tie rod assembly 2.

[0025] As can be seen from the above description, by using multiple power generation units 3 to adapt to the movement of the tie rod assembly 2, multiple power generation points can be formed in this invention, which can effectively increase the power generation of the float 1 in each floating process. Of course, those skilled in the art can also change the number of the above power generation units 3 according to actual needs, and no further restrictions are imposed here.

[0026] Based on the above embodiments, the cascaded flywheel 34 in this invention includes; A wheel 341 with an inner toothed ring 342 formed on its inner ring; A central gear 343 and a plurality of planetary gears 344 are rotatably connected inside the wheel 341. The plurality of planetary gears 344 mesh inside the internal gear ring 342 and outside the central gear 343. The shaft end of the central gear 343 is fixedly connected to the input end of the generator 35.

[0027] In this embodiment, three planetary gears 344 are configured. When the first gear 32 drives the second gear 33 to rotate, the cascaded flywheel 34 will rotate accordingly. When the cascaded flywheel 34 rotates, its disc 341 rotates and drives multiple planetary gears 344 to rotate synchronously through the internal gear ring 342. Then, the multiple planetary gears 344 drive the central gear 343 to rotate. The central gear 343, which has a high speed ratio, drives the generator 35 to generate electricity. By changing the speed ratio, the power generation efficiency is improved. In this way, by configuring multiple cascaded flywheels 34 in the float 1, the power generation capacity is increased and the power generation efficiency is improved.

[0028] In some embodiments, the pull rod assembly 2 of the present invention includes; A tie rod 21 is inserted into the float 1. The tie rod 21 passes through the guide seat 10 and extends into the interior of the float 1; A rack 22 is installed on at least one outer side of the pull rod 21. The rack 22 meshes with the gear 32 for transmission. An installation cavity and a wiring cavity are also provided on the inner bottom of the pull rod 21. An electrically connected rectifier 23 and a battery pack 24 are fixedly installed inside the installation cavity. The power line 351 of the generator 35 is electrically connected to the rectifier 23 along the wiring cavity.

[0029] Preferably, two resonant units 4 are symmetrically arranged along both sides of the pull rod assembly 2 in this invention. Of course, in the embodiment, racks 22 should be fixedly installed on both sides of the pull rod 21. The generated electrical energy is used to charge the battery pack 24 through the power line 351 and rectifier 23. The electrical energy of the battery pack 24 is transmitted to the control box 5 through the cable 51.

[0030] Specifically, when the float 1 is floating, it moves relative to the tie rod 21. At this time, the rack 22 drives the gear 32 to rotate, and then the meshing of the gear 32 and the gear 33 drives the cascaded flywheel 34 to rotate. As can be seen from the above description, since gear 2 33 uses a one-way bearing 30, the cascaded flywheel 34 can rotate in the same direction and drive the generator 35 to rotate and generate electricity. Thus, under the high-speed drive of the cascaded flywheel 34, the generator 35 can generate electricity. The generated electrical energy is used to charge the battery pack 24 through the power line 351 and rectifier 23. The electrical energy of the battery pack 24 is transmitted to the control box 5 through the cable 51, thus forming a complete power supply path.

[0031] Based on the above embodiments, the pull rod 21 in this invention is movably connected to the float 1 via a linear bearing 25; Specifically, in this embodiment, two linear bearings 25 are provided inside the float 1 to improve the stability of the pull rod 21 during its movement. Of course, in order to ensure the sealing between the tie rod 21 and the float 1 and to prevent seawater from entering the interior of the float 1, a sealing ring 26 is also installed between the outer side of the tie rod 21 and the bottom of the float 1. The sealing ring 26 is sealed at the point where the tie rod 21 and the float 1 pass through. Obviously, the sealing ring 26 and the float 1 are fixedly connected. The upper limit device 27 and the lower limit device 28 are fixedly installed on the outer side of the tie rod 21, located inside and outside the float 1. In this embodiment, by installing the upper limit device 27 and the lower limit device 28 in the float 1 through the tie rod 21, the impact of excessive seawater waves is prevented from damaging the float 1 and the tie rod 21, thereby improving the operational reliability of the device. The bottom of the tie rod 21 is also movably connected to a tie rod post 29 for fixing to the seabed.

[0032] Specifically, the pull rod 29 described in this invention is fixed to the seabed surface. A pull rod hole is provided on the outer side of the bottom of the pull rod 21. The pull rope 53 is fixedly connected to the pull rod hole. The purpose of this design is that when encountering extreme marine weather, the control box 5 fixed on the seabed commands the reel assembly 52. ​​The pull rope 53 pulls the pull rod 21 downward to submerge the float 1 below the water surface to avoid damage from waves. The float 1 is sunk to the depth of the sea to prevent it from being damaged. The pull rod 21, through the pull rope 53 and the reel assembly 52, makes the float 1 float in the optimal position on the water surface. The float 1 moves with the waves, and the pull rod 21 moves up and down inside the float 1.

[0033] In an optional embodiment, the resonant unit 4 of the present invention includes; Wall-mounted 41 fixed to the inner wall of the float 1 and the outer wall of the tie rod 21; A hanging arm 42 is rotatably connected to the outside of the wall mount 41. A swing cylinder 43 is fixedly connected to the end of the hanging arm 42. A swing rod 45 is movably inserted into the end of the swing cylinder 43 through a linear bearing 44. The end of the swing rod 45 is rotatably connected to the wall mount 41 outside the pull rod 21. A linear motor 46 is fixedly installed inside the swing cylinder 43. A spring 47 is installed between the shaft end of the linear motor 46 and the swing rod 45. The linear motors 46 on both sides of the pull rod 21 receive pulse current from the control box 5 to assist the pull rod 21 to move up or down, causing the float 1 to resonate.

[0034] Specifically, when the float 1 rises in the waves, the tie rod 21 in the float 1 moves downward relative to the surface. When the float 1 rises in the waves, the tie rod 21 in the float 1 moves downward. The linear motors 46 on both sides of the tie rod 21 receive the pulse current from the control box 5 to assist the tie rod 21 downward, causing the float 1 to oscillate upward. When float 1 is in a horizontal position, linear motor 46 returns to its original position; When the float descends with the waves, the rod 21 in the float 1 moves upward. The linear motors 46 on both sides of the rod 21 receive pulse current from the control box 5 to assist the rod 21 upward, causing the float 1 to oscillate downward, thereby making the float resonate with the waves and capturing more energy to generate electricity.

[0035] Furthermore, in this embodiment of the invention, multiple cameras 11 are installed at intervals inside the float 1, and a control unit 12 is fixedly installed on the top of the float 1. A water surface detection unit 13 and an antenna 14 are installed sequentially above the control unit 12. The water surface detection unit 13, the camera 11, and the control unit 12 are electrically connected to form a monitoring system to monitor the operation of the floating body.

[0036] The power of the control unit 12 is provided by the battery pack 24 inside the lever 21. The water surface detection unit 13 can be set as a camera or a wind speed and direction sensor. The control unit 12 is used to send the information of the water surface detection unit 13 to the control box 5 so that the control box 5 can conveniently adjust the position of the float 1 in a timely manner according to the sea surface conditions to avoid severe weather conditions. In addition, the design of multiple cameras 11 is used to monitor the movement of the power generation unit 3 inside the float 1, so that users can grasp and analyze the situation inside the float 1 in a timely manner. Of course, the multiple cameras 11, control unit 12, and multiple linear motors inside the float 1 are powered by the battery pack 24 in the pull rod.

[0037] It should be noted that, in the embodiments of the present invention, the outer shell of the float 1 is made of a lightweight and tough composite material, such as glass fiber reinforced composite material or carbon fiber reinforced composite material, and the tie rod 21 is made of a corrosion-resistant composite material, such as carbon fiber composite material or stainless steel composite material. Example

[0038] Reference Figure 6 The second aspect of the present invention also provides a wave power generation system, which includes at least one of the above-described conversion devices; It also includes a control box 5 installed on the seabed. The control box 5 and the battery pack 24 inside the float 1 are electrically connected by a cable 51. A retraction assembly 52 is rotatably connected above the control box 5. A pull rope 53 is wound around the outside of the retraction assembly 52. ​​The other end of the pull rope 53 is connected to the pull rod assembly 2. A pulley 54 is also installed on the seabed to guide the pull rope 53. The pull rope 53 pulls the pull rod assembly 2 downward, which can keep the float 1 submerged below the water surface to avoid damage from extreme weather waves. The pull rod assembly 2 keeps the float 1 floating in the optimal position on the water surface through the pull rope 53 and the retraction assembly 52.

[0039] The pulley 54 described in this invention is used to guide the pull rope 53. As mentioned above, the pull rope 53 and the bottom of the pull rod 21 are fixedly connected. When the surface detection unit 13 detects severe weather, it sends information to the control box 5 through the control unit 12. The control box 5 drives the winding assembly 52 to move. Through the pulling force of the pull rope 53, the float 1 can be sunk below the water surface, thus avoiding damage to the float 1. When the weather improves, the control box 5 can send the float 1 to the optimal position of the sea waves through the winding assembly 52 and the pulley 54.

[0040] Based on the above embodiments, the control box 5 in this invention is equipped with an electrical component 55, which is electrically connected to the land dispatch room 57 via a submarine cable 56. The land dispatch room 57 is electrically connected to the user terminal 59 via a power transmission and transformation line 58.

[0041] Specifically, the electrical components 55 described in this invention include converters, transformers, relay protection devices, etc. The specific circuits are conventional methods for those skilled in the art and will not be described in detail here. This invention achieves energy utilization by electrically connecting the power supply of the battery pack 24 to the control box 5 via cable 51, and then outputting the power from the control box 5 to the outside via submarine cable 56.

[0042] Of course, the control box 5 described in this invention can be connected to multiple power generation conversion devices, and its specific structure is as described above for a single power generation conversion device, which will not be repeated here.

[0043] It should be noted that in this embodiment, the pull rope 53, pulley 54 and control box 5 are made of corrosion-resistant composite materials, such as ultra-high molecular weight polyethylene fiber rope, fiberglass (FRP) box and stainless steel composite pull rod. In an optional embodiment, when using wave power generation conversion device and system in a large area of ​​sea, in order to coordinate the electrical energy output from each floating body 1 generator to the control box 5, the electrical energy of multiple control boxes 5 is transmitted to the main control box, and the electrical energy output from all generators is collected through power conversion equipment and power conversion. The collected electrical energy is then dispatched by the land dispatch room 57 to the electrical equipment and / or power transmission and transformation network.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wave power generation conversion device, characterized in that, include: The float (1) and the tie rod assembly (2) slidably connected in the float (1); The float (1) is equipped with at least one power generation unit (3) and at least one resonance unit (4). The power generation unit (3) and the tie rod assembly (2) are connected. When the float (1) floats up and down, the tie rod assembly (2) drives the power generation unit (3) to generate electricity. The resonance unit (4) is used to drive the float (1) to resonate with the waves when the float (1) floats up and down. The bottom of the float (1) is fixedly equipped with a guide seat (10) for guiding the tie rod assembly (2).

2. The wave power generation conversion device according to claim 1, characterized in that: The power generation unit (3) includes; A bracket (31) fixed in the float (1); Gear 1 (32) and gear 2 (33) are rotatably connected on the bracket (31), and a one-way bearing (30) is provided between gear 2 (33) and the bracket (31); a cascaded flywheel (34) is also fixedly installed on the outside of gear 2 (33), and the output end of the cascaded flywheel (34) is connected to the input end of the generator (35).

3. The wave power generation conversion device according to claim 2, characterized in that: The cascaded flywheel (34) includes; A wheel (341) with an inner toothed ring (342) formed on the inner ring. A central gear (343) and a plurality of planetary gears (344) are rotatably connected inside the wheel (341). The plurality of planetary gears (344) mesh inside the internal gear ring (342) and outside the central gear (343). The shaft end of the central gear (343) is fixedly connected to the input end of the generator (35).

4. The wave power generation conversion device according to claim 2, characterized in that: The pull rod assembly (2) includes; A tie rod (21) is inserted into the float (1); A rack (22) is installed on at least one outer side of the pull rod (21), and the rack (22) and the gear (32) mesh and drive each other. An installation cavity and a wiring cavity are also provided on the inner bottom of the pull rod (21). An electrically connected rectifier (23) and a battery pack (24) are fixedly installed inside the installation cavity. The power line (351) of the generator (35) is electrically connected to the rectifier (23) along the wiring cavity.

5. The wave power generation conversion device according to claim 4, characterized in that: The pull rod (21) is movably connected to the float (1) via a linear bearing (25); A sealing ring (26) is also installed between the outside of the pull rod (21) and the bottom of the float (1), wherein an upper limit device (27) and a lower limit device (28) located inside and outside the float (1) are fixedly installed on the outside of the pull rod (21). The bottom of the tie rod (21) is also movably connected to a tie rod post (29) for fixing to the seabed.

6. The wave power generation conversion device according to claim 4, characterized in that: The resonant unit (4) includes; Wall hanger (41) fixed to the inner wall of the float (1) and the outer wall of the tie rod (21); A hanging arm (42) is rotatably connected to the outside of the wall mount (41). A swing cylinder (43) is fixedly connected to the end of the hanging arm (42). A swing rod (45) is movably inserted into the end of the swing cylinder (43) through a linear bearing (44). The end of the swing rod (45) is rotatably connected to the wall mount (41) outside the pull rod (21). A linear motor (46) is fixedly installed inside the swing cylinder (43). A spring (47) is installed between the shaft end of the linear motor (46) and the swing rod (45). The linear motors (46) on both sides of the pull rod (21) receive pulse current from the control box (5) to assist the pull rod (21) to move up or down, so that the float (1) resonates.

7. The wave power generation conversion device according to claim 1, characterized in that: Multiple cameras (11) are installed at intervals inside the float (1), and a control unit (12) is fixedly installed on the top of the float (1). A water surface detection unit (13) and an antenna (14) are installed above the control unit (12) in sequence. The water surface detection unit (13), the camera (11), and the control unit (12) are electrically connected to form a monitoring system to monitor the operation of the floating body.

8. The wave power generation conversion device according to claim 1, characterized in that: The power generation unit (3) is distributed in four matrices along the top, bottom, left, and right sides of the tie rod assembly (2), and the resonance unit (4) is symmetrically arranged in two on both sides of the tie rod assembly (2).

9. A wave power generation system, characterized in that, Includes at least one conversion device as described in any one of claims 1-8; It also includes a control box (5) installed on the seabed. The control box (5) and the battery pack (24) inside the float (1) are electrically connected by a cable (51). A winding assembly (52) is rotatably connected above the control box (5). A pull rope (53) is wound around the outside of the winding assembly (52). The other end of the pull rope (53) is connected to the pull rod assembly (2). A pulley (54) is also installed on the seabed to guide the pull rope (53). The pull rope (53) pulls the pull rod assembly (2) down, which can keep the float (1) submerged below the water surface to avoid damage from extreme weather waves. The pull rod assembly (2) makes the float (1) float in the optimal position on the water surface through the pull rope (53) and the winding assembly (52).

10. A wave power generation system according to claim 9, characterized in that: The control box (5) is equipped with electrical components (55), which are electrically connected to the land dispatch room (57) via a submarine cable (56). The land dispatch room (57) is electrically connected to the user terminal (59) via a power transmission line (58).

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