Hybrid power generation system

By combining wind and wave power generation devices on a floating wind turbine platform, efficient energy conversion and improved platform stability have been achieved, solving the problems of limited power generation of floating wind turbine platforms and easy corrosion of wave power devices, thus realizing efficient and stable utilization of marine energy.

CN120845235APending Publication Date: 2025-10-28STATE OCEAN TECH CENT
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511293455.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-11
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

Existing floating wind turbine platforms have limited power generation capacity and poor stability, while wave energy power generation devices have complex structures, are susceptible to seawater corrosion, and pose a high risk of environmental pollution, thus limiting their large-scale application.

Method used

Design a hybrid power generation system that combines a wind turbine generator and an aerodynamic wave energy device. Utilize a semi-submersible platform to convert wind and wave energy into electrical energy. Energy conversion is achieved through an energy harvesting system, an air supply system, and an air chamber, thereby enhancing the platform's stability.

Benefits of technology

It improves energy efficiency, enhances platform stability, simplifies the structure of wave energy devices, avoids seawater corrosion and environmental pollution, reduces maintenance frequency, and extends equipment life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120845235A_ABST
    Figure CN120845235A_ABST
Patent Text Reader

Abstract

The invention discloses a hybrid power generation system, which relates to the technical field of power generation devices, and comprises a semi-submersible platform, a wind generating set and a pneumatic wave energy device, the wind generating set is arranged at the top of the semi-submersible platform and is used for converting wind energy into electric energy; the pneumatic wave energy device is carried on the semi-submersible platform; the pneumatic wave energy device is used for converting wave energy into electric energy and can absorb the wave energy to improve the stability of the semi-submersible platform. According to the hybrid power generation system provided by the invention, the energy utilization efficiency can be improved, and the platform stability can be enhanced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of power generation equipment technology, and in particular to a hybrid power generation system. Background Art

[0002] Offshore wind and wave energy, as important marine energy sources, are characterized by large reserves and renewability. Currently, floating wind turbine platforms have been used to some extent in offshore wind energy utilization, but standalone floating wind turbine platforms suffer from limited power generation and poor stability due to wave influence. Meanwhile, although wave energy generation devices can utilize wave energy, most devices have complex structures, are difficult to maintain, and are susceptible to seawater corrosion, posing environmental pollution risks and limiting their large-scale application.

[0003] To address the aforementioned issues, there is an urgent need to design a technical solution that can both improve energy efficiency and enhance platform stability. Summary of the Invention

[0004] The purpose of this invention is to provide a hybrid power generation system to solve the problems existing in the prior art, thereby improving energy utilization efficiency and enhancing platform stability.

[0005] To achieve the above objectives, the present invention provides the following solution: This invention provides a hybrid power generation system, comprising: Semi-submersible platform; Wind turbine generators, mounted on top of a semi-submersible platform, are used to convert wind energy into electrical energy; and A pneumatic wave energy device is mounted on a semi-submersible platform; the pneumatic wave energy device is used to convert wave energy into electrical energy and can absorb wave energy to improve the stability of the semi-submersible platform.

[0006] Preferably, the semi-submersible platform includes pontoons, a base, connecting rods, and a crossbeam frame; the pontoons are hollow structures, and multiple pontoons are symmetrically fixed on the base; the tops of two adjacent pontoons are connected to horizontally arranged connecting rods; the crossbeam frame is hollow inside, located below the connecting rods and arranged parallel to the connecting rods, and both ends of the crossbeam frame are fixedly connected to two adjacent pontoons respectively.

[0007] Preferably, the pneumatic wave energy device includes an energy harvesting system, an air supply system, and an air chamber. The energy harvesting system can convert wave energy into air kinetic energy and deliver it to the air chamber via the air supply system. The air chamber can convert air kinetic energy into electrical energy through an air turbine generator.

[0008] Preferably, the crossbeam frame has a through-hole for the uprights, and the lower surface of the crossbeam frame has an exhaust port and an intake port. The inner wall of the crossbeam frame has an inner hole, and the outer wall has an outer hole. The upright hole is for inserting uprights, and the energy harvesting system is mounted on the uprights. The crossbeam frame contains the gas supply system, which includes an intake pipe and an intake pipe. One end of the intake pipe is closed, and the other end is an intake port, which passes through the inner hole and is sealed to the intake port of the gas chamber. Multiple branch pipes are provided on the intake pipe, each branch pipe passing through the crossbeam frame exhaust port and sealed to the exhaust end of the corresponding energy harvesting system. One end of the intake pipe is closed, and the other end is an intake port, which passes through the outer hole and communicates with the outside. Multiple branch pipes are provided on the main intake pipe, each branch pipe passing through the crossbeam frame intake port and sealed to the intake end of the corresponding energy harvesting system.

[0009] Preferably, the energy harvesting system includes a float, a mast, and an airbag; the float is a hollow, sealed structure, with its center sealed through the mast and capable of moving up and down along the mast axis; the airbag is located above the float, and the float can compress the airbag when it moves upward under the influence of wave energy; the top surface of the mast is fixedly connected to a connecting rod, and the bottom surface is fixedly connected to a base, with its axis perpendicular to the lower surface of the connecting rod.

[0010] Preferably, the airbag has a spherical crown structure, including a rubber bladder body and a bladder body bottom plate that are fixedly and sealed together. An airbag cavity is formed between the rubber bladder body and the bladder body bottom plate. The rubber bladder body is located below the bladder body bottom plate and can automatically rebound after being squeezed by the float. The bladder body bottom plate has an airbag exhaust hole and an airbag intake hole, which are respectively sealed and connected to the air supply system.

[0011] Preferably, six sets of energy harvesting systems are symmetrically arranged on both sides of the semi-submersible platform; two sets of gas supply systems are provided, located inside the corresponding crossbeams, and the two sets of gas supply systems are respectively connected to the energy harvesting systems on the corresponding sides.

[0012] Preferably, an intake pipe one-way valve is installed on the intake pipe branch pipe, and its conduction direction is from the energy harvesting system to the intake pipe; an intake pipe one-way valve is installed on the intake pipe branch pipe, and its conduction direction is from the intake pipe to the energy harvesting system.

[0013] Preferably, the air chamber includes a main body with a fan-shaped cross-section. One end of the main body is fixedly connected to the float, and the two sides of the main body are respectively fixedly connected to the two crossbeams. The air chamber is divided into an inlet chamber, an intermediate chamber, and an outlet chamber by a front wall, a middle wall, and a rear wall. The inlet chamber is used to receive the airflow delivered by the inlet pipe, the intermediate chamber is used to install the power generation components, and the outlet chamber is used to discharge the airflow.

[0014] Preferably, each side of the air intake chamber has an air inlet, which is connected to the air intake pipe of two air intake pipes respectively; the power generation component includes an air turbine and a generator connected by a drive mechanism; the air turbine and the generator are fixedly installed in the intermediate chamber through a turbine bracket and a generator bracket; the air turbine axis is perpendicular to the middle wall and its head faces the middle wall; each side of the air outlet chamber has an air outlet that communicates with the outside; an air inlet is opened in the center of the middle wall, and an air outlet is opened in the rear wall near the tail of the air turbine; air circulation is achieved in the air intake chamber, the intermediate chamber, and the air outlet chamber through the air inlet and the air outlet.

[0015] The present invention achieves the following technical effects compared to the prior art: This invention presents a wave energy device with a simple structure, most of which is located above the sea surface, protecting it from wave impact, thus improving reliability and facilitating maintenance. Combining wind power generation with wave energy generation increases power output and improves resource utilization efficiency. The wave energy device absorbs wave energy, reducing the impact of waves on semi-submersible platforms and making the floating wind turbine platform operate more smoothly. Employing a pneumatic conversion system with a high degree of sealing, it avoids seawater corrosion of internal components and eliminates the risk of environmental pollution. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a hybrid power generation system in one or more embodiments of the present invention; Figure 2 This is a schematic diagram of the semi-submersible platform structure of a hybrid power generation system in one or more embodiments of the present invention. Figure 3 This is a schematic diagram of the beam frame structure of a hybrid power generation system in one or more embodiments of the present invention. Figure 4 This is a schematic diagram of the wave energy device structure of a hybrid power generation system in one or more embodiments of the present invention. Figure 5 This is a schematic diagram of the energy harvesting system structure of a hybrid power generation system in one or more embodiments of the present invention; Figure 6 This is a schematic diagram of the airbag structure of a hybrid power generation system in one or more embodiments of the present invention; Figure 7 This is a schematic diagram of the internal structure of the gas chamber of a hybrid power generation system in one or more embodiments of the present invention. Figure 8 This is a schematic diagram of the gas transmission system structure of a hybrid power generation system in one or more embodiments of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1-Semi-submersible platform, 2-Wind turbine, 3-Pneumatic wave energy device, 4-Float, 5-Base, 6-Connecting rod, 7-Crossbeam frame, 8-Crossbeam frame air intake, 9-Crossbeam frame exhaust port, 10-Upright pole hole, 11-Outer side hole, 12-Inner side hole, 13-Air chamber, 14-Energy harvesting system, 15-Air supply system, 16-Airbag, 17-Float, 18-Upright pole, 19-Airbag exhaust port, 20-Bottom plate of the airbag body, 21-Rubber airbag body, 22-Airbag cavity, 23-Airbag air intake port, 24-Exhaust port 25-Air outlet, 26-Air chamber body, 27-Airflow inlet, 28-Middle wall, 29-Intake chamber, 30-Intake port, 31-Airflow outlet, 32-Rear wall, 33-Intermediate chamber, 34-Front wall, 35-Generator, 36-Generator bracket, 37-Air turbine, 38-Turbine bracket, 39-Intake pipe port, 40-Intake pipe branch pipe, 41-Intake pipe one-way valve, 42-Intake pipe, 43-Intake pipe port, 44-Intake pipe branch pipe, 45-Intake pipe one-way valve, 46-Intake pipe. Detailed Implementation

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The purpose of this invention is to provide a hybrid power generation system to solve the problems existing in the prior art, thereby improving energy utilization efficiency and enhancing platform stability.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] This invention provides a hybrid power generation system, such as Figure 1As shown, the system includes a semi-submersible platform 1, a wind turbine 2, and an aerodynamic wave energy device 3. The wind turbine 2 and the aerodynamic wave energy device 3 are installed on the semi-submersible platform 1, which floats entirely on the sea surface. The wind turbine 2 is located on top of the semi-submersible platform 1 and uses an existing wind turbine to convert offshore wind energy into electrical energy. The aerodynamic wave energy device 3 includes an energy harvesting system 14, an air supply system 15, and an air chamber 13. The energy harvesting system 14 converts wave energy into the kinetic energy of high-speed airflow, the air supply system 15 is responsible for transporting the airflow, and the air chamber 13 contains an air turbine 37 and a generator 35 to convert the kinetic energy of the airflow into electrical energy.

[0023] like Figure 2 As shown, the semi-submersible platform 1 includes pontoons 4, a base 5, connecting rods 6, and crossbeams 7. In one embodiment, the pontoons 4 are hollow cylindrical structures, and there are three of them. The three pontoons 4 are installed on the base 5 in an equilateral triangle arrangement. In one embodiment, the pontoons 4 are made of corrosion-resistant steel and filled with foam buoyancy material. The pontoons 4 are rigidly connected to the base 5 by bolts, providing the main buoyancy for the semi-submersible platform. The two ends of the connecting rod 6 are fixedly connected to two adjacent pontoons 4, and the connection point is located at the top of the pontoons 4. The connecting rod 6 is a cylindrical steel structure, and its two ends are fixedly connected to the top of the two pontoons 4 by flanges, forming a triangular frame to enhance the overall rigidity of the semi-submersible platform 1. The crossbeams 7 are hollow cuboid structures, located below the connecting rods 6 and parallel to the connecting rods 6. The two ends of the crossbeams 7 are fixedly connected to two adjacent pontoons 4, and there are two crossbeams 7, located on both sides of the equilateral triangle of the semi-submersible platform 1, forming a symmetrical support structure. The buoy 4 provides buoyancy support for the entire system; the rigid connection between the connecting rod 6 and the crossbeam 7 forms a stable frame that carries the wind turbine and wave energy device; the hollow structure inside the crossbeam 7 provides installation space for the gas transmission system 15.

[0024] like Figure 3 As shown, the crossbeam frame 7 has a through-hole 10 in the middle, and the lower surface of the crossbeam frame 7 has a crossbeam frame exhaust hole 9 and a crossbeam frame intake hole 8. The crossbeam frame 7 has an inner hole 12 near the air chamber 13 and an outer hole 11 on the side wall away from the air chamber 13.

[0025] like Figure 4 As shown, the energy harvesting system 14 consists of six sets: three sets on one side of the semi-submersible platform, and six sets symmetrically arranged on both sides of the semi-submersible platform. Figure 5As shown, the energy harvesting system 14 includes a float 17, a support rod 18, and airbags 16. The float 17 is a hollow, sealed body, comprising an integrally formed upper section and a lower section. The upper section is cylindrical, and the lower section is conical. The center of the float 17 is sealed and slidably inserted through the support rod 18. The axis of the support rod 18 coincides with the axis of the float 17, allowing the float 17 to move up and down along the axis of the support rod 18. The float 17 has a through hole in its center, is fitted onto the outside of the support rod 18, and is sealed and slidably connected to it, allowing it to slide up and down along the axis of the support rod 18. The support rod 18 is a cylindrical structure, with its top surface fixedly connected to the connecting rod 6 and its bottom surface fixedly connected to the base 5. It passes through the crossbeam frame 7 via a support rod hole 10. The axis of the support rod 18 is perpendicular to the lower surface of the connecting rod 6. Two airbags 16 are symmetrically arranged on both sides of the upper part of each support rod 18. During the up-and-down movement of the float 17 on the support rod 18, these two airbags 16 can be compressed.

[0026] like Figure 6 As shown, the airbag 16 has a spherical crown structure, including a rubber bladder body 21 and a bladder body base plate 20, forming an airbag cavity 22 between them. The rubber bladder body 21 can automatically rebound after being compressed. A single energy harvesting system 14 is equipped with two airbags 16, which are respectively installed on both sides of the upright 18. The bladder body base plate 20 is fixedly connected to the crossbeam frame 7. The bladder body base plate 20 has an airbag exhaust hole 19 and an airbag intake hole 23, which are concentric with the crossbeam frame exhaust hole 9 and crossbeam frame intake hole 8, respectively. The rubber bladder body 21 is located below the bladder body base plate 20 and above the corresponding float 17. Figure 8 As shown, the gas delivery system 15 is located inside the crossbeam frame 7, consisting of two sets, which are respectively connected to the energy harvesting systems 14 on both sides. One end of the air intake pipe 46 is closed, and the other end is an air intake port 43. The air intake port 43 passes through the inner hole 12 and is sealed to the air intake port 30 of the air chamber 13. Six air intake branch pipes 44 are fixedly connected to the air intake pipe 46. The ends of the air intake branch pipes 44 pass through the crossbeam frame exhaust hole 9 and are sealed to the airbag exhaust hole 19, with a sealing ring at the connection point. One end of the air intake pipe 42 is closed, and the other end is an air intake port 39. The air intake port 39 passes through the outer hole 11 and connects to the outside. Six air intake branch pipes 40 are fixedly and sealed to the main pipe of the air intake pipe 42. The ends of the air intake branch pipes 40 pass through the crossbeam frame air intake hole 8 and are sealed to the airbag air intake hole 23. One-way valves are installed on both the intake pipe branch pipe 44 and the intake pipe branch pipe 40. The flow direction of the intake pipe one-way valve 45 is from the airbag 16 to the intake pipe 46; the flow direction of the intake pipe one-way valve 41 is from the intake pipe 42 to the airbag 16. Through the directional conduction function of the one-way valves, when the airbag 16 is expelled, the airflow can only enter the intake pipe, and when the airbag 16 is inhaled, the air can only be replenished from the outside through the intake pipe, ensuring unidirectional airflow and improving energy conversion efficiency.

[0027] like Figure 7As shown, the air chamber 13 has a fan-shaped structure, including a main body 26, a front wall 34, a middle wall 28, and a rear wall 32. One end of the main body 26 is fixedly connected to the float 4. The left and right sides of the main body 26 are flat and are fixedly connected to two crossbeams 7 respectively. The front wall 34, middle wall 28, and rear wall 32 divide the interior of the air chamber 13 into three parts: an inlet chamber 29, an intermediate chamber 33, and an outlet chamber 24. The front wall 34, middle wall 28, and rear wall 32 are all welded and sealed to the main body 26 to ensure no airflow interference between the chambers. An air inlet 30 is opened on each side of the inlet chamber 29, which is connected to two air inlet pipes 43 respectively. An air turbine 37 and a generator 35 are installed in the intermediate chamber 33 and fixed by a turbine bracket 38 and a generator bracket 36. The specific structure and principle of the air turbine 37 and the generator 35 are existing technologies. The axis of the air turbine 37 is perpendicular to the middle wall 28, and its head faces the middle wall 28. Each side of the exhaust chamber 24 has an exhaust port 25 connecting to the outside. An air inlet 27 is located in the center of the middle wall 28, and an air outlet 31 is located on the rear wall 32 near the tail of the air turbine generator. These two openings allow air to circulate between the intake chamber 29, the intermediate chamber 33, and the exhaust chamber 24. The intake chamber 29 receives high-pressure airflow from the intake pipe, which rushes at high speed into the intermediate chamber 33 through the air inlet, driving the air turbine 37 to rotate and powering the generator 35 to generate electricity. The airflow, after performing work, enters the exhaust chamber 24 through the air outlet and is finally discharged from the exhaust port, completing the conversion of air kinetic energy into electrical energy.

[0028] The operating principle of the hybrid power generation system of this invention is as follows: Initially, the entire system floats on the sea surface. Float 17 floats on the sea surface and is at the middle water level. Under the action of waves, float 17 moves up and down along the axis of the upright 18.

[0029] As the float 17 moves upward, its top plane compresses the rubber bladder 21 of the airbag 16, reducing the volume of the airbag cavity 22 and increasing the internal air pressure of the airbag 16 to greater than atmospheric pressure. Air from inside the airbag 16 enters the intake pipe branch pipe 44 and then passes through the intake pipe one-way valve 45 into the intake pipe 46. The airflow enters the intake chamber 29 from the intake pipe 46 through the intake pipe port 43, then enters the intermediate chamber 33 from the airflow inlet 27, and finally enters the exhaust chamber 24 from the airflow outlet 31, exiting through the exhaust port 25 into the outside. During this process, a high-speed airflow is generated, driving the air turbine 37 to rotate and in turn driving the generator 35 to generate electricity. The generated electricity can be transmitted via wires to existing power outlets or stored in existing batteries.

[0030] As the wave moves from its crest to its trough, float 17 moves downwards from its highest position, airbag cavity 22 expands outwards, and the internal air pressure of airbag 16 becomes lower than atmospheric pressure, causing the one-way valve 41 of the intake pipe to open. Airflow then enters the intake pipe 42 from the outside through intake pipe opening 39, then enters the intake pipe branch pipe 40, and finally passes through the one-way valve 41 before entering airbag cavity 22, restoring it to its original state. The expansion and contraction of a single airbag cavity 22 is unaffected by the states of other airbags 16. During its wave-driven motion, the float of the wave energy device absorbs some wave energy through interaction with the waves, reducing the impact of the waves on the semi-submersible platform. Simultaneously, the elastic compression of airbag 16 buffers the inertia of float 17, further reducing the swaying amplitude of the semi-submersible platform. Within one wave cycle, a single energy harvesting system 14 completes one process: float 17 pushes airbag 16 upward, airbag 16 exhausts air, gas is transported to air chamber 13, air turbine 37 rotates, generator 35 generates electricity, float 17 moves downward, airbag 16 inhales air, and airbag 16 returns to its original state. Throughout the process, the airflow maintains unidirectional movement, thereby improving the conversion efficiency of air kinetic energy to electrical energy.

[0031] This invention utilizes the synergistic generation of wind and wave energy to overcome the limitations of single-energy sources affected by weather conditions. The float 17 and airbag 16 of the wave energy device directly buffer wave impacts through wave-following motion and energy absorption, reducing the vertical and horizontal sway of the platform. This not only improves the power generation efficiency of the wind turbine but also reduces platform structural fatigue and extends equipment lifespan. The airbag 16, air supply system, and air chamber 13 of the wave energy device are all located above the sea surface (the float 17 only contacts the seawater at its bottom), protecting it from direct wave impacts, preventing seawater corrosion, and reducing maintenance frequency.

[0032] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A hybrid power generation system, characterized in that, include: Semi-submersible platform; A wind turbine generator set, which is installed on top of a semi-submersible platform, is used to convert wind energy into electrical energy; as well as A pneumatic wave energy device is mounted on a semi-submersible platform; the pneumatic wave energy device is used to convert wave energy into electrical energy and can absorb wave energy to improve the stability of the semi-submersible platform.

2. The hybrid power generation system according to claim 1, characterized in that, The semi-submersible platform includes pontoons, a base, connecting rods, and a crossbeam frame; the pontoons are hollow structures, and multiple pontoons are symmetrically fixed on the base; the tops of two adjacent pontoons are connected to horizontally arranged connecting rods; the crossbeam frame is hollow inside, located below the connecting rods and arranged parallel to the connecting rods, and both ends of the crossbeam frame are fixedly connected to two adjacent pontoons respectively.

3. The hybrid power generation system according to claim 2, characterized in that, The pneumatic wave energy device includes an energy harvesting system, an air supply system, and an air chamber. The energy harvesting system can convert wave energy into air kinetic energy and deliver it to the air chamber via the air supply system. The air chamber can convert air kinetic energy into electrical energy through an air turbine generator.

4. The hybrid power generation system according to claim 3, characterized in that, The crossbeam frame has a through-hole for the uprights. The lower surface of the crossbeam frame has an exhaust port and an intake port. The inner wall of the crossbeam frame has an inner hole, and the outer wall has an outer hole. The upright hole is for the uprights to pass through, and the energy harvesting system is mounted on the uprights. The crossbeam frame contains the gas supply system, which includes an intake pipe and an intake pipe. One end of the intake pipe is closed, and the other end is an intake port. The intake port passes through the inner hole and is sealed to the intake port of the gas chamber. Multiple branch pipes are provided on the intake pipe, and each branch pipe passes through the crossbeam frame exhaust port and is sealed to the exhaust end of the corresponding energy harvesting system. One end of the intake pipe is closed, and the other end is an intake port. The intake port passes through the outer hole and communicates with the outside. Multiple branch pipes are provided on the main intake pipe, and each branch pipe passes through the crossbeam frame intake port and is sealed to the intake end of the corresponding energy harvesting system.

5. The hybrid power generation system according to claim 3, characterized in that, The energy harvesting system includes a float, a mast, and an airbag; the float is a hollow, sealed structure, with its center sealed and inserted through the mast, and is capable of moving up and down along the mast's axis; the airbag is located above the float; the top surface of the mast is fixedly connected to a connecting rod, and the bottom surface is fixedly connected to a base, with its axis perpendicular to the lower surface of the connecting rod.

6. The hybrid power generation system according to claim 5, characterized in that, The airbag has a spherical crown structure, including a rubber bladder body and a bladder body bottom plate that are fixedly and sealed together. An airbag cavity is formed between the rubber bladder body and the bladder body bottom plate. The rubber bladder body is located below the bladder body bottom plate and can automatically rebound after being squeezed by the float. The bladder body bottom plate has an airbag exhaust hole and an airbag intake hole, which are respectively sealed and connected to the air supply system.

7. The hybrid power generation system according to claim 3, characterized in that, The semi-submersible platform has six sets of energy harvesting systems symmetrically arranged on both sides; there are two sets of gas supply systems, located inside the corresponding crossbeams, and the two sets of gas supply systems are connected to the energy harvesting systems on the corresponding sides.

8. The hybrid power generation system according to claim 4, characterized in that, An intake pipe one-way valve is installed on the intake pipe branch pipe, and its conduction direction is from the energy harvesting system to the intake pipe; an intake pipe one-way valve is installed on the intake pipe branch pipe, and its conduction direction is from the intake pipe to the energy harvesting system.

9. The hybrid power generation system according to claim 4, characterized in that, The air chamber includes a main body with a fan-shaped cross-section. One end of the main body is fixedly connected to the float, and the two sides of the main body are respectively fixedly connected to the two crossbeams. The air chamber is divided into an inlet chamber, an intermediate chamber, and an outlet chamber by a front wall, a middle wall, and a rear wall. The inlet chamber is used to receive the airflow delivered by the inlet pipe, the intermediate chamber is used to install the power generation components, and the outlet chamber is used to discharge the airflow.

10. The hybrid power generation system according to claim 9, characterized in that, The air intake chamber has an air inlet on each side, which is connected to the air intake pipes of two air intake pipes respectively; the power generation component includes an air turbine and a generator connected by a drive mechanism; the air turbine and generator are fixedly installed in the intermediate chamber through a turbine bracket and a generator bracket; the air turbine axis is perpendicular to the middle wall and its head faces the middle wall; the air outlet chamber has an air outlet on each side, which is connected to the outside; the middle wall has an airflow inlet in the center and the rear wall has an airflow outlet near the tail of the air turbine; the airflow inlet and airflow outlet enable air circulation between the air intake chamber, the intermediate chamber, and the air outlet chamber.