A sea wave multi-stage power generation platform based on UHPC and FRP and an implementation method thereof

Abstract

The application relates to the technical field of ocean wave power generation, and discloses a sea wave multi-stage power generation platform based on UHPC and FRP, which comprises a plurality of foundation pipe columns arranged in an array and a plurality of multi-stage transverse platforms arranged at intervals in the vertical direction, a plurality of penetrating holes are formed in the multi-stage transverse platforms, the plurality of foundation pipe columns are respectively arranged in the corresponding penetrating holes, a stator and a rotor are closed and arranged in the top end of the foundation pipe column, the rotor is in sliding fit with the stator, a sliding float is arranged on the outer wall of the foundation pipe column in a sliding mode, the sliding float is connected with the rotor in the foundation pipe column through an upwardly-extending external transmission frame, and a mooring mechanism is connected to the bottom end of the foundation pipe column. The power generation components are closed in the top end of the pipe column, the external transmission frame is used for transmitting the wave kinetic energy upwards, the core electrical components are prevented from being corroded by seawater, the wind and wave resistance is improved, and long-term stable power generation is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of ocean wave energy generation technology, specifically to a multi-stage ocean wave power generation platform based on UHPC and FRP and its implementation method. Background Technology

[0002] Wave energy, as a abundant marine renewable energy source, has clear engineering application value in its development and utilization. Current wave energy power generation devices typically rely on the motion of floating structures under the influence of waves to drive the generator. To increase the power generation scale, large-scale multi-column array-type power generation platform structures are often used in engineering projects.

[0003] Existing offshore power generation platforms face certain structural and maintenance limitations during long-term operation. Conventional platforms typically use metal steel pipes as the main load-bearing frame, which are prone to electrochemical corrosion when immersed in the high-salt and high-humidity marine environment for extended periods, leading to degradation of the overall structural strength. To resist wave impact, traditional platforms usually employ rigid welding or bolt-locking methods to connect various load-bearing nodes. However, under continuous alternating wave loads, rigid connection nodes cannot provide effective buffering, easily causing stress concentration, which can lead to fatigue deformation or even localized fracture failure.

[0004] Meanwhile, the external moving parts of the wave energy conversion mechanism are inevitably exposed to the seawater surface and near the waterline for extended periods. As immersion time increases, barnacles, oysters, and other marine organisms accumulate on the surface of their moving tracks. These deposits significantly alter the roughness of the contact surfaces, increasing sliding friction resistance between the relatively moving parts, which can easily lead to mechanical jamming and shutdown, reducing the continuous operation capability of the power generation system. Furthermore, in power generation devices that partially rely on open-type transmissions, the gaps between moving and stationary parts are susceptible to seawater splashing, increasing the likelihood of insulation failure or short circuits in the internal generator units. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-stage wave power generation platform based on UHPC and FRP and its implementation method, which solves the problems of easy corrosion of the load-bearing structure, easy fatigue damage of rigid connection nodes, and easy jamming of external sliding parts by marine attachments in complex marine environments of existing wave power generation platforms.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage wave power generation platform based on UHPC and FRP, comprising multiple base columns arranged in an array and multiple horizontal platforms spaced apart along the vertical direction. Multiple through holes are provided on the horizontal platforms, and the multiple base columns are respectively inserted into the corresponding through holes. A stator and a mover are enclosed inside the top of each base column, with the mover slidingly engaged with the stator. A sliding float is slidably fitted onto the outer wall of each base column, and the sliding float is connected to the mover inside the base column via an upwardly extending external transmission frame. A mooring mechanism is connected to the bottom of each base column.

[0007] Preferably, the foundation column is a hollow composite column structure, and the foundation column includes, from the inside to the outside, an inner FRP spiral pipe, a UHPC intermediate casting layer and an outer FRP spiral pipe, and the cross-section of the outer FRP spiral pipe is hexagonal.

[0008] Preferably, a radial support rib is fixed between the inner FRP winding tube and the outer FRP winding tube, and longitudinal prestressed FRP bars are evenly spaced along the circumference inside the UHPC intermediate casting layer.

[0009] Preferably, the multi-level transverse platform includes, from top to bottom, an upper transverse platform, a middle transverse platform, and a lower transverse platform. The upper transverse platform is located above the sea level, while the middle transverse platform and the lower transverse platform are located below the sea level.

[0010] Preferably, the outer wall of the foundation column is provided with an annular rib at the position corresponding to the multi-stage transverse platform. The annular rib is engaged with the inner wall of the through hole, and a damping elastomer pad is installed between the surface of the annular rib and the surface of the multi-stage transverse platform.

[0011] Preferably, the outer layer of the multi-level transverse platform is a resin-based glass fiber composite material layer, and the interior of the multi-level transverse platform is filled with closed-cell foam core material.

[0012] Preferably, the sliding float is provided with an external guide cage, and a cleaning scraper is installed at the edge of the sliding float, with the inner working edge of the cleaning scraper attached to the outer wall of the foundation column.

[0013] Preferably, the mooring mechanism includes a mooring cable and a seabed anchoring base, with the upper end of the mooring cable connected to the bottom end of the foundation column and the lower end of the mooring cable connected to the seabed anchoring base.

[0014] Preferably, the external transmission frame is a transmission cage frame that covers the periphery of the foundation column. The bottom end of the transmission cage frame is connected to the sliding float. The top of the transmission cage frame is connected to a connecting rod that penetrates downward into the foundation column. The connecting rod is fixedly connected to the moving part.

[0015] A method for implementing a multi-stage wave power generation platform based on UHPC and FRP includes the following steps: Multiple foundation columns containing stators and movers are prefabricated, as well as the multi-stage transverse platform with through holes. Multiple foundation columns are respectively inserted into the corresponding insertion holes, and sliding floats are fitted onto the outside of the foundation columns to assemble a multi-stage wave power generation platform. The assembled wave multi-stage power generation platform is towed to the target sea area, and the bottom end of the foundation column is anchored to the seabed through a mooring mechanism. Under the action of ocean waves, the sliding float is driven by the waves to slide back and forth along the outer wall of the foundation column, and the external transmission frame drives the mover to slide relative to the stator.

[0016] This invention provides a multi-stage wave power generation platform based on UHPC and FRP and its implementation method. It has the following beneficial effects: 1. This invention forms a grid-like structure by interlacing multiple foundation pipe columns within a multi-stage transverse platform, and sets a damping elastomer pad between the annular ribs on the outer wall of the foundation pipe columns and the contact surface of the transverse platform. When subjected to ocean wave load impact, the damping elastomer pad can absorb and buffer the local compressive stress between the multi-stage transverse platform and the foundation pipe columns, thereby reducing stress concentration at the nodes and improving the overall structural stability of the platform under complex sea conditions.

[0017] 2. This invention employs a foundation column composed of an inner FRP spiral pipe, a UHPC intermediate casting layer, and an outer FRP spiral pipe, combined with a multi-stage transverse platform filled with closed-cell foam core material. The UHPC intermediate casting layer in the foundation column increases the bottom counterweight to lower the overall center of gravity, while the closed-cell foam core material in the multi-stage transverse platform provides vertical bearing buoyancy. At the same time, the outer resin-based glass fiber composite material layer directly isolates seawater, solving the structural degradation problem of traditional metal materials being prone to corrosion in marine environments.

[0018] 3. This invention encloses the stator and mover inside the foundation column, and fits the sliding float outside the foundation column and connects it to the internal mover via a connecting rod. A cleaning scraper is provided at the end edge of the sliding float to fit the outer wall of the foundation column. Under the condition of ensuring the waterproof sealing of the internal electrical components, the sliding float is directly driven by waves to transmit kinetic energy through the connecting rod to generate electricity. At the same time, when the sliding float moves up and down, the cleaning scraper physically removes marine deposits on the outer wall of the foundation column, avoiding jamming of the sliding parts due to biological adhesion and maintaining the normal operation of the power generation system. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall three-dimensional structure of a wave multi-stage power generation platform based on UHPC and FRP provided in an embodiment of the present invention; Figure 2 This is a top view of the internal structure of the upper horizontal platform provided in an embodiment of the present invention; Figure 3 This is a front view schematic diagram of the working state of the foundation tubing in a marine environment according to an embodiment of the present invention; Figure 4 A three-dimensional structural diagram of the foundation column and its external sleeve components provided in an embodiment of the present invention; Figure 5 A schematic diagram of the internal structure of the cross-section of the foundation column provided in an embodiment of the present invention; Figure 6 A partial perspective view of the transmission structure at the top of the foundation column provided in an embodiment of the present invention; Figure 7 A cross-sectional schematic diagram of the power generation component inside the top of the foundation column provided in an embodiment of the present invention; Figure 8 A partially enlarged schematic diagram of the annular rib and damping elastomer pad provided in an embodiment of the present invention; Figure 9 A partially enlarged schematic diagram of the multi-level transverse platform and damping elastomer pad provided in an embodiment of the present invention; Figure 10 This is a schematic flowchart illustrating a method for implementing a multi-stage wave power generation platform based on UHPC and FRP, as provided in an embodiment of the present invention.

[0020] The components include: 1. Foundation tubing; 2. Upper transverse platform; 3. Middle transverse platform; 4. Lower transverse platform; 5. Through holes; 6. Sliding float; 7. Sea level; 8. Annular rib; 9. Damping elastomer padding; 10. External guide cage; 11. Cleaning scraper; 12. Mooring cable; 13. Subsea anchoring base; 14. Inner FRP spiral tube; 15. Outer FRP spiral tube; 16. UHPC intermediate casting layer; 17. Prestressed FRP reinforcement; 18. Radial support rib; 19. Connecting rod; 20. Stator; 21. Mover. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] See attached document Figure 1 -Appendix Figure 9 This invention provides a multi-stage wave power generation platform based on UHPC and FRP, including multiple base columns 1 arranged in an array and multiple horizontal platforms spaced apart in the vertical direction. Multiple through holes 5 are opened on the multi-stage horizontal platforms, and the multiple base columns 1 are respectively inserted into the corresponding through holes 5. The top of the base column 1 is enclosed with a stator 20 and a mover 21, which are slidably engaged with the stator 20. A sliding float 6 is slidably fitted on the outer wall of the base column 1. The sliding float 6 is connected to the mover 21 inside the base column 1 through an upwardly extending external transmission frame. A mooring mechanism is connected to the bottom of the base column 1.

[0023] Specifically, in this embodiment, the multi-level transverse platform and multiple foundation columns 1 form an interpenetrating grid structure. When subjected to lateral impact from sea waves, this structure can transfer and distribute local loads to each column node through the transverse platform, thereby reducing the stress limit of individual structural components and improving the overall structural strength of the platform. Considering the high salt spray and high humidity environment of the ocean, the platform arranges the generator set, consisting of stator 20 and mover 21, inside the top of the foundation column 1 above the water surface. The outer wall of the foundation column 1 provides physical isolation, preventing direct contact between the stator 20 and mover 21 and seawater, thus reducing the risk of electrochemical corrosion and short circuits in the core electrical components and extending the operating cycle and maintenance interval of the power generation device in the marine environment.

[0024] See attached document Figure 3The foundation column 1 is a hollow composite column structure. The foundation column 1 includes, from the inside to the outside, an inner FRP spiral pipe 14, a UHPC intermediate casting layer 16 and an outer FRP spiral pipe 15. The cross-section of the outer FRP spiral pipe 15 is hexagonal.

[0025] Specifically, both the inner FRP spiral pipe 14 and the outer FRP spiral pipe 15 are made of corrosion-resistant glass fiber reinforced composite material (GFRP) or carbon fiber reinforced composite material (CFRP). The UHPC intermediate casting layer 16 is made of ultra-high performance concrete with a compressive strength greater than 120MPa. The composite structure uses the FRP layer to provide an external protective layer against seawater erosion and the internal UHPC layer to provide the main compressive bearing capacity. Under the premise of meeting the overall structural stiffness, the self-weight of a single foundation pipe column is effectively reduced. In addition, the outer FRP spiral pipe 15 is designed with a hexagonal cross section. Compared with conventional round pipes, its straight outer wall can not only provide circumferential restraint for the sliding components sleeved on it to prevent circumferential rotation during the sliding process, but also the smooth planar structure is more convenient for the fitting and operation of the external supporting equipment.

[0026] A radial support rib 18 is fixed between the inner FRP winding tube 14 and the outer FRP winding tube 15. Longitudinal prestressed FRP ribs 17 are evenly spaced along the circumference inside the UHPC intermediate casting layer 16.

[0027] Specifically, the radial support rib 18 connects and fixes the inner FRP wound tube 14 and the outer FRP wound tube 15. Its main function is to maintain the distance between the tube walls when pouring UHPC concrete during the manufacturing stage, and to enhance the overall synergistic stress-bearing capacity of the double-layer tube walls during the platform operation stage, so as to avoid local deformation of the single-layer tube wall under the lateral water pressure of waves. The intermediate pouring layer 16 of UHPC has relatively weak tensile strength as a concrete material. Therefore, longitudinal prestressed FRP bars 17 are uniformly embedded in the circumference of the tube wall. The prestressed FRP bars 17 are made of high-strength carbon fiber prestressed tendons. During the service of the platform, longitudinal prestress is applied to the concrete layer. When the foundation tube column is subjected to wave impact and bending deformation, the prestress can offset the tensile stress generated on the wave-facing side, control the expansion of micro-cracks on the tube column surface, and maintain the load-bearing stability.

[0028] See attached document Figure 1 The multi-level transverse platform consists of an upper transverse platform 2, a middle transverse platform 3, and a lower transverse platform 4 from top to bottom. The upper transverse platform 2 is located above sea level 7, while the middle transverse platform 3 and the lower transverse platform 4 are located below sea level 7. Specifically, the multi-level transverse platforms serve different functions based on their draft. The upper transverse platform 2 is positioned above sea level 7 in a non-submerged area and is used to centrally install electrical control equipment such as power distribution circuits and energy storage modules. It also provides an operating surface for on-site maintenance personnel. The middle transverse platform 3 and the lower transverse platform 4 are normally submerged below sea level. They use their own volume to provide upward basic buoyancy for the entire platform structure. The submerged platforms have a large horizontal unfolding area. When the platform is disturbed by the vertical movement of the waves, the transverse platforms will generate hydrodynamic damping force in their underwater movement, which limits the large vertical rise and fall of the foundation column 1, allowing the foundation column 1 to maintain a relatively stable state, thereby increasing the relative sliding stroke between the external sliding float 6 and the column.

[0029] See attached document Figure 8 -Appendix Figure 9 An annular rib 8 is protruding from the outer wall of the foundation column 1 at the position corresponding to the multi-level transverse platform. The annular rib 8 is snapped into the inner wall of the through hole 5. A damping elastomer pad 9 is installed between the surface of the annular rib 8 and the surface of the multi-level transverse platform. The outer layer of the multi-level transverse platform is a resin-based glass fiber composite material layer, and the interior of the multi-level transverse platform is filled with closed-cell foam core material. Specifically, the intersection of the foundation column 1 and the multi-stage transverse platform is the concentrated area of ​​overall platform stress deformation. The damping elastomer pad 9 is made of EPDM rubber or polyurethane damping material and is filled between the rigid contact surfaces of the annular rib 8 and the through hole 5. When the platform is subjected to alternating wave loads and undergoes structural deformation, the damping elastomer pad 9 consumes some mechanical energy through its own compression deformation, while allowing the connection nodes to generate a certain degree of angular compensation, reducing stress concentration damage caused by rigid collisions. The shell of the multi-stage transverse platform is integrally molded from resin-based glass fiber composite material. Its internal cavity is filled with high-density rigid polyurethane closed-cell foam core material with an independent and non-connected pore structure. When the outer composite material layer is partially damaged by external force collision, the closed-cell foam can prevent seawater from spreading inside the transverse platform and maintain the designed buoyancy standard.

[0030] See attached document Figure 3 -Appendix Figure 4 The sliding float 6 is covered with an external guide cage 10, and a cleaning scraper 11 is installed at the edge of the end of the sliding float 6. The inner working blade of the cleaning scraper 11 is attached to the outer wall of the foundation column 1.

[0031] Specifically, the external guide cage 10 physically restricts the periphery of the sliding float 6. In actual sea conditions, the water flow not only has vertical fluctuations but also horizontal lateral forces. The guide cage 10 can limit the radial displacement of the sliding float 6 under the action of lateral thrust, ensuring that it only moves along the outer wall of the foundation pipe column 1 along the axis, reducing friction and jamming during the movement. In addition, in view of the problem that marine organisms are easily attached to the pipe wall surface in the marine environment, the working blade of the cleaning scraper 11 is made of low-friction and wear-resistant materials such as polytetrafluoroethylene. During the daily up-and-down movement of the sliding float 6 with the waves, the cutting edge of the cleaning scraper 11 moves in close contact with the surface of the outer FRP wound pipe 15, using the mechanical potential energy of the device itself to peel off the pipe wall attachments, maintain the flatness of the foundation pipe column surface and reduce the frequency of subsequent manual cleaning operations.

[0032] See attached document Figure 4 The mooring mechanism includes a mooring cable 12 and a seabed anchoring base 13. The upper end of the mooring cable 12 is connected to the bottom end of the foundation column 1, and the lower end of the mooring cable 12 is connected to the seabed anchoring base 13.

[0033] Specifically, the main function of the mooring mechanism is to maintain the position and fix the multi-stage power generation platform to the seabed. The mooring cable 12 is made of high molecular weight polyethylene fiber and other tensile and corrosion-resistant materials. The combined upward buoyancy generated by the lower and middle transverse platforms is greater than the downward gravity generated by the foundation dummy 1 and the main platform structure. The buoyancy difference between the two applies a continuous upward initial pretension to the mooring cable 12. After the seabed anchoring base 13 is fixed to the seabed, it works in conjunction with the tensioned mooring cable 12 to form a dwelling system. This system can resist the lateral drift load of ocean currents, and at the same time, it constrains the platform to float freely through the downward pull, so that the foundation dummy 1 maintains the vertical working attitude set by the foundation in the working water area, providing basic structural support for the continuous capture of wave kinetic energy.

[0034] See attached document Figure 6 -Appendix Figure 7 The external transmission frame is a transmission cage frame that covers the periphery of the foundation column 1. The bottom end of the transmission cage frame is connected to the sliding float 6. The top of the transmission cage frame is connected to a connecting rod 19 that penetrates downward into the foundation column 1. The connecting rod 19 is fixedly connected to the mover 21. Specifically, the structural arrangement of the external transmission frame solves the problem of kinetic energy transmission while maintaining the sealing of the main body of the tube column. The sliding float 6 captures wave energy at the water surface and generates lifting displacement. This power is transmitted upward through the transmission cage on the outside to the confluence point above the top of the foundation tube column 1, and then extends downward through the centrally arranged connecting rod 19 from the top channel of the tube body to the inside of the tube column, avoiding the need for perforations in the draft area of ​​the lower part of the foundation tube column and ensuring the watertightness of the main body of the tube. The stator 20 and the mover 21 form a generator unit, which adopts the permanent magnet synchronous linear generator type. The connecting rod 19 drives the mover 21, whose surface is equipped with a permanent magnet array, to move axially. The magnetic field of the mover moves back and forth linearly and cuts the induction coil pre-placed in the stator 20, converting external mechanical energy into electrical energy output through the principle of electromagnetic induction.

[0035] See attached document Figure 10 The present invention also provides a method for implementing a multi-stage wave power generation platform based on UHPC and FRP, comprising the following steps: Multiple foundation columns 1, each containing a stator 20 and a mover 21, are prefabricated, as well as multi-level transverse platforms with through holes 5. Multiple foundation columns 1 are respectively inserted into corresponding insertion holes 5, and sliding floats 6 are fitted on the outside of the foundation columns 1 to form a multi-stage wave power generation platform. The assembled wave multi-stage power generation platform is towed to the target sea area, and the bottom end of the foundation column 1 is anchored to the seabed through the mooring mechanism; Under the action of waves, the sliding float 6 is driven by the waves to slide back and forth along the outer wall of the foundation column 1, and drives the mover 21 to slide relative to the stator 20 through the external transmission frame.

[0036] Working principle: When using this platform, firstly, the assembled platform is towed to the target sea area, and the bottom end of the foundation column 1 is connected to the seabed anchoring base 13 through the mooring cable 12. At this time, the middle transverse platform 3 and the lower transverse platform 4 located below the sea level 7 generate upward buoyancy by the closed-cell foam core material filled inside, combined with the downward gravity counterweight generated by the UHPC intermediate pouring layer 16 inside the foundation column 1, so that the platform maintains a vertical working posture in the seawater. During the wave movement, the kinetic energy of the water is directly applied to the sliding float 6, which is fitted onto the outside of the foundation column 1. As the sliding float 6 slides up and down along the outer wall of the foundation column 1, its power is transmitted upward through the surrounding transmission cage. The support rods of the transmission cage converge after passing the top of the foundation column 1, and drive the mover 21, which is installed inside the top of the foundation column 1, to move vertically in sync via the central connecting rod 19. This causes the mover 21 to slide relative to the stator 20, which is fixed inside the top. The magnetic field of the mover 21 continuously cuts the coil of the prefabricated stator 20 inside the foundation column 1 to generate electricity. The converted electrical energy is input into the storage space set on the upper horizontal platform 2 through the circuit. During the synchronous process of the sliding float 6 continuously sliding along the foundation pipe column 1, the inner working edge of the cleaning scraper 11 assembled at the end of the sliding float 6 is in close contact with the outer wall of the foundation pipe column 1 to perform reciprocating physical scraping, which removes marine dirt attached to the pipe wall surface in real time. At the same time, when the platform is subjected to severe wave impact and structural deformation, the annular rib 8 on the outer wall of the foundation pipe column 1 compresses the damping elastomer pad 9 installed at the through hole 5. The damping elastomer pad 9 undergoes compression deformation and absorbs mechanical energy, thereby buffering the local stress at the connection between the foundation pipe column 1 and the multi-stage transverse platform.

Claims

1. A multi-stage wave power generation platform based on UHPC and FRP, comprising multiple foundation columns (1) arranged in an array and multiple horizontal platforms spaced apart along the vertical direction, characterized in that, The multi-level transverse platform has multiple through holes (5), and multiple foundation columns (1) are respectively inserted into the corresponding through holes (5). The top of the foundation column (1) is enclosed with a stator (20) and a mover (21). The mover (21) is slidably engaged with the stator (20). The outer wall of the foundation column (1) is slidably fitted with a sliding float (6). The sliding float (6) is connected to the mover (21) inside the foundation column (1) through an upwardly extending external transmission frame. The bottom end of the foundation column (1) is connected to a mooring mechanism.

2. The wave multi-stage power generation platform based on UHPC and FRP according to claim 1, characterized in that, The foundation column (1) is a hollow composite column structure. The foundation column (1) includes an inner FRP spiral pipe (14), a UHPC intermediate casting layer (16) and an outer FRP spiral pipe (15) from the inside to the outside. The cross-section of the outer FRP spiral pipe (15) is hexagonal.

3. The wave multi-stage power generation platform based on UHPC and FRP according to claim 2, characterized in that, Radial support ribs (18) are fixed between the inner FRP winding tube (14) and the outer FRP winding tube (15), and longitudinal prestressed FRP ribs (17) are evenly spaced along the circumference inside the UHPC intermediate casting layer (16).

4. A wave multi-stage power generation platform based on UHPC and FRP according to claim 1, characterized in that, The multi-level transverse platform includes, from top to bottom, an upper transverse platform (2), a middle transverse platform (3) and a lower transverse platform (4). The upper transverse platform (2) is located above the sea level (7), while the middle transverse platform (3) and the lower transverse platform (4) are located below the sea level (7).

5. A wave multi-stage power generation platform based on UHPC and FRP according to claim 1, characterized in that, The outer wall of the foundation column (1) is provided with an annular rib (8) at the position corresponding to the multi-level transverse platform. The annular rib (8) is engaged with the inner side wall of the through hole (5). A damping elastomer pad (9) is installed between the surface of the annular rib (8) and the surface of the multi-level transverse platform.

6. A wave multi-stage power generation platform based on UHPC and FRP according to claim 1, characterized in that, The outer layer of the multi-level transverse platform is a resin-based glass fiber composite material layer, and the interior of the multi-level transverse platform is filled with closed-cell foam core material.

7. A wave multi-stage power generation platform based on UHPC and FRP according to claim 1, characterized in that, The sliding float (6) is covered with an external guide cage (10), and a cleaning scraper (11) is installed at the edge of the end of the sliding float (6). The inner working edge of the cleaning scraper (11) is attached to the outer wall of the foundation column (1).

8. A wave multi-stage power generation platform based on UHPC and FRP according to claim 1, characterized in that, The mooring mechanism includes a mooring cable (12) and a seabed anchoring base (13). The upper end of the mooring cable (12) is connected to the bottom end of the foundation column (1), and the lower end of the mooring cable (12) is connected to the seabed anchoring base (13).

9. A wave multi-stage power generation platform based on UHPC and FRP according to claim 1, characterized in that, The external transmission frame is a transmission cage frame that covers the periphery of the foundation column (1). The bottom end of the transmission cage frame is connected to the sliding float (6). The top of the transmission cage frame is connected to a connecting rod (19) that penetrates downward into the interior of the foundation column (1). The connecting rod (19) is fixedly connected to the mover (21).

10. A method for implementing a multi-stage wave power generation platform based on UHPC and FRP, characterized in that, The application to a wave multi-stage power generation platform based on UHPC and FRP as described in any one of claims 1 to 9 includes the following steps: Multiple foundation columns (1) with stators (20) and movers (21) inside are prefabricated, as well as the multi-level transverse platform with through holes (5); Multiple foundation columns (1) are respectively inserted into the corresponding insertion holes (5), and sliding floats (6) are fitted on the outside of the foundation columns (1) to form a multi-stage wave power generation platform. The assembled wave multi-stage power generation platform is towed to the target sea area, and the bottom end of the foundation column (1) is anchored to the seabed through a mooring mechanism; Under the action of waves, the sliding float (6) is driven by the waves to slide back and forth along the outer wall of the foundation column (1), and the mover (21) and the stator (20) slide relative to each other through the external transmission frame.

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