A multi-energy complementary combined power generation device at sea

Abstract

This invention discloses a multi-energy complementary combined power generation device for offshore applications, relating to the field of offshore power generation technology. The device includes a floating foundation platform, a wind turbine, a wind turbine column, photovoltaic power generation modules, energy storage modules, and a power conversion module. A borehole is drilled at the center of the top of the floating foundation platform, and the bottom of the wind turbine column is fixedly installed along the outer edge of the borehole. The wind turbine is fixedly installed on the top of the wind turbine column, and the photovoltaic power generation modules are fixedly installed on both sides of the wind turbine column. Multiple wave energy generation modules are evenly distributed around the top circumference of the floating foundation platform, and the power conversion module is fixedly installed inside the floating foundation platform. The power conversion module, wave energy generation modules, wind turbine, energy storage modules, and photovoltaic power generation modules are electrically connected. This optimized integration of multiple energy sources in structure and the combined complementary power supply in terms of energy output solve the technical problems of single power supply methods and insufficient reliability for offshore electrical equipment.

Description

Technical Field

[0001] This invention relates to the field of offshore power generation technology, and in particular to an offshore multi-energy complementary combined power generation device. Background Technology

[0002] With the further development and utilization of marine resources in my country, the demand for offshore electrical equipment such as wind-measuring radar, marine mobile buoys, and marine aquaculture platforms has increased significantly. However, offshore electrical equipment mainly relies on periodic battery replacements, wave energy, or wind energy for power supply. This single power supply method is unreliable and cannot meet the long-term stable power needs of offshore electrical equipment. Summary of the Invention

[0003] This invention provides a multi-energy complementary power generation device for marine applications, which solves the technical problem that current marine electrical equipment mainly relies on periodic battery replacement, wave energy, or wind energy for power supply. This results in a single power supply method, insufficient reliability, and an inability to meet the long-term stable power demand of marine electrical equipment.

[0004] The present invention provides a multi-energy complementary power generation device for marine applications, including a floating foundation platform, a wind turbine, a wind turbine column, a photovoltaic power generation module, an energy storage module, and a power conversion module.

[0005] A drilled hole is provided at the center of the top of the floating foundation platform, and the bottom of the wind turbine column is fixedly installed on the outer edge of the drilled hole.

[0006] The wind turbine is fixedly installed on the top of the wind turbine column, and the photovoltaic power generation module is fixedly installed on both sides of the wind turbine column;

[0007] Multiple wave energy generation modules are evenly distributed around the top circumference of the floating foundation platform.

[0008] The power conversion module is fixedly installed inside the floating foundation platform;

[0009] The power conversion module, the wave energy generation module, the wind turbine, the energy storage component, and the photovoltaic power generation component are electrically connected.

[0010] The power conversion module is used to receive the electrical energy output from the wave energy generation module, the wind turbine, the energy storage component, and the photovoltaic power generation component, and to transmit the electrical energy to external electrical equipment, hydrogen energy components, or the energy storage battery.

[0011] Optionally, the floating foundation platform is provided with a double-layer cabin, a second-layer equipment cabin, and a counterweight cabin in sequence in the vertical direction inside;

[0012] The energy storage component includes an energy storage battery;

[0013] The double-layered cabin includes an annular air chamber and a single-layer equipment compartment, and the annular air chamber and the single-layer equipment compartment are located on the same axis of symmetry.

[0014] The hydrogen energy component is fixedly installed inside the first-floor equipment compartment, and the power conversion module and the energy storage battery are fixedly installed inside the second-floor equipment compartment.

[0015] Optionally, the wave energy generation module includes a gas pipe, a turbine, and a permanent magnet generator;

[0016] The air pipe is installed through the top of the annular air chamber, and the turbine is fixedly installed on the top of the air pipe;

[0017] The turbine is connected to the permanent magnet generator via a coupling;

[0018] The annular air chamber has multiple reinforcing ribs evenly distributed around its central circumference, and the outer wall and inner wall of the annular air chamber are connected by the reinforcing ribs.

[0019] The annular air chamber has wave inlet holes on its lower side, and the number of wave inlet holes is the same as the number of wave energy generation modules.

[0020] Optionally, the photovoltaic power generation module includes a photovoltaic panel and a photovoltaic panel support;

[0021] The photovoltaic panel bracket is fixedly installed on both sides of the wind turbine column, and the photovoltaic panel is fixedly installed on the photovoltaic panel bracket.

[0022] Optionally, a fan is installed inside the second-floor equipment compartment, and the fan is located close to the bottom of the second-floor equipment compartment;

[0023] The floating foundation platform is equipped with a ventilation pipe running vertically through it;

[0024] The lower end of the ventilation duct is connected to the fan, and the upper end of the ventilation duct passes through the top of the floating foundation platform, with the upper part of the ventilation duct being a downward-bent pipe.

[0025] Optionally, a counterweight tube is provided through the floating foundation platform in the vertical direction;

[0026] The lower end of the counterweight tube is located in the counterweight compartment, and the upper end of the counterweight tube passes through the top of the floating foundation platform;

[0027] A plug is installed at the upper end of the counterweight tube.

[0028] Optionally, the energy storage component further includes a hydrogen energy component, wherein the hydrogen energy component includes a hydrogen production module, a hydrogen storage tank, and a hydrogen fuel cell;

[0029] The hydrogen production module is used to receive electrical energy output from the power conversion module, use the electrical energy output from the power conversion module to electrolyze water to generate hydrogen, and transport the hydrogen to the hydrogen storage tank.

[0030] Hydrogen storage tanks are used to store hydrogen produced by the hydrogen production module for use in hydrogen fuel cells.

[0031] The hydrogen fuel cell is used to convert the hydrogen in the hydrogen storage tank into electrical energy, which is then delivered to the power conversion module.

[0032] Optionally, the floating base platform has a material hole at the top, and the lower end of the material hole is located inside the second-level equipment compartment.

[0033] Optionally, exhaust holes are evenly distributed around the outer circumference of the fan column;

[0034] The fan column is provided with a column support on the side near the material hole, and one end of the column support is fixedly installed on the top of the floating foundation platform.

[0035] Optionally, the bottom of the floating base platform is provided with anchor chains for securing the floating base platform;

[0036] One end of the anchor chain is connected to an anchor head.

[0037] As can be seen from the above technical solutions, the present invention has the following advantages:

[0038] This invention integrates a wind turbine, photovoltaic power generation modules, hydrogen energy modules, wave energy generation modules, and energy storage batteries onto a floating foundation platform. It employs an optimized, highly reliable integrated layout scheme, improving the utilization rate of renewable energy at sea and ensuring the overall power supply reliability of the device. Compared to traditional power equipment, this invention overcomes the technical problems of single power supply methods, insufficient reliability, and inability to meet the long-term stable power needs of offshore power equipment. Through the rational arrangement of different power supply devices, it ensures optimal energy production under different weather and sea conditions, thereby improving the reliability of the power supply equipment. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0040] Figure 1 A schematic diagram of the structure of the offshore multi-energy complementary combined power generation device provided in an embodiment of the present invention;

[0041] Figure 2 Schematic diagram of the floating foundation platform structure provided in the embodiments of the present invention Figure 1 ;

[0042] Figure 3 Schematic diagram of the floating foundation platform structure provided in the embodiments of the present invention Figure 2 ;

[0043] Figure 4 This is a schematic diagram of the wave energy generation module structure provided in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the wiring connection of a multi-energy complementary combined power generation device at sea, provided in an embodiment of the present invention.

[0045] The accompanying figure is labeled as follows:

[0046] 1. Floating foundation platform; 2. Wind turbine column; 3. Photovoltaic power generation module; 4. Wind turbine; 5. Power conversion module; 6. Wave power generation module; 7. Energy storage battery; 8. Annular gas chamber; 9. First-floor equipment compartment; 10. Second-floor equipment compartment; 11. Counterweight compartment; 12. Gas pipe; 13. Turbine; 14. Permanent magnet generator; 15. Reinforcing rib; 16. Wave inlet; 17. Fan; 18. Ventilation pipe; 19. Counterweight pipe; 20. Plug; 21. Hydrogen production module; 22. Hydrogen fuel cell; 23. Material inlet; 24. Exhaust port; 25. Column support; 26. Anchor chain; 27. Hydrogen storage tank. Detailed Implementation

[0047] This invention provides a multi-energy complementary power generation device for marine applications, which addresses the technical problem that current marine electrical equipment mainly relies on periodic battery replacement, wave energy, or wind energy for power supply. This single power supply method is unreliable and cannot meet the long-term stable power demand of marine electrical equipment.

[0048] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0049] For easier understanding, please refer to Figure 1-5 A multi-energy complementary power generation device for marine applications includes a floating foundation platform 1, a wind turbine 4, a wind turbine column 2, a photovoltaic power generation module 3, an energy storage module, and a power conversion module 5.

[0050] A hole is drilled at the center of the top of the floating foundation platform 1, and the bottom of the fan column 2 is fixedly installed on the outer edge of the hole.

[0051] The wind turbine generator 4 is fixedly installed on the top of the wind turbine column 2, and the photovoltaic power generation module 3 is fixedly installed on both sides of the wind turbine column 2;

[0052] Multiple wave energy generation modules 6 are evenly distributed around the top circumference of the floating foundation platform 1, and the power conversion module 5 is fixedly installed inside the floating foundation platform 1.

[0053] Electrical connection between power conversion module 5, wave energy generation module 6, wind turbine generator 4, energy storage component and photovoltaic power generation component 3;

[0054] The power conversion module 5 is used to receive the electrical energy output from the wave energy generation module 6, wind turbine 4, energy storage component and photovoltaic power generation component 3 and transmit the electrical energy to external electrical equipment, hydrogen energy component or energy storage battery 7.

[0055] In this embodiment of the invention, the offshore multi-energy complementary power generation device includes a floating base platform 1, a wind turbine 4, a wind turbine column 2, a photovoltaic power generation module 3, an energy storage module, and a power conversion module 5. The energy storage module includes a hydrogen energy module and an energy storage battery 7. The wind turbine 4 is fixed to the outer edge of a drilled hole at the center of the top of the floating base platform 1 via the wind turbine column 2. Wind energy is used to rotate the blades of the wind turbine 4, driving it to generate electricity which is then transmitted to the power conversion module 5. The photovoltaic power generation module 3 is fixedly installed on both sides of the wind turbine column 2, converting solar energy into electrical energy which is then transmitted to the power conversion module 5. Wave energy generation modules 6 are evenly distributed around the top circumference of the floating base platform 1, utilizing the up-and-down motion of waves to generate mechanical energy, which is then converted into electrical energy and transmitted to the power conversion module 5. The power conversion module 5 is used to receive the electrical energy output from the wave energy generation module 6, wind turbine 4, hydrogen energy module, energy storage battery 7, and photovoltaic power generation module 3, and perform rectification, inversion, voltage boosting, or voltage bucking to adapt to the voltage and frequency requirements of external electrical equipment, and then transmit it to the external electrical equipment, or to charge the hydrogen energy module or energy storage battery 7, thereby realizing reliable power transmission and conversion between the wave energy generation module, wind turbine, hydrogen energy module, energy storage battery, photovoltaic power generation module, and external electrical equipment.

[0056] It should be noted that wind turbine 4 is a vertical axis wind turbine 4.

[0057] See Figure 2As shown, the floating base platform 1 has a double-layer cabin, a second-layer equipment cabin 10 and a counterweight cabin 11 arranged vertically inside; the energy storage component includes an energy storage battery 7; the double-layer cabin includes an annular gas chamber 8 and a first-layer equipment cabin 9, and the annular gas chamber 8 and the first-layer equipment cabin 9 are on the same axis of symmetry; the hydrogen energy component is fixedly installed inside the first-layer equipment cabin 9, and the power conversion module 5 and the energy storage battery 7 are fixedly installed inside the second-layer equipment cabin 10.

[0058] In this embodiment of the invention, the floating foundation platform 1 is a cylindrical floating platform with multiple hollow chambers, capable of resisting the impact of sea waves and ensuring the stability of the platform in harsh marine environments. The floating foundation platform 1 is vertically divided into three layers from top to bottom by steel plates: the first layer is a double-layered cabin, the second layer is a second-layered equipment cabin 10, and the third layer is a counterweight cabin 11. This modular design facilitates the installation, maintenance, and replacement of various components. The double-layered cabin is divided into inner and outer layers. The outer layer is an annular gas chamber 8 used as a wave energy power generation annular gas chamber 8, and the inner layer is a first-layered equipment cabin 9 housing hydrogen energy components. The second-layered equipment cabin 10 houses a power conversion module 5 and an energy storage battery 7.

[0059] See Figure 4 As shown, the wave energy power generation module 6 includes an air pipe 12, a turbine 13, and a permanent magnet generator 14; the air pipe 12 is installed through the top of the annular air chamber 8, and the turbine 13 is fixedly installed on the top of the air pipe 12; the turbine 13 is connected to the permanent magnet generator 14 through a coupling; multiple reinforcing ribs 15 are evenly distributed around the middle circumference of the annular air chamber 8, and the outer wall and inner wall of the annular air chamber 8 are connected by reinforcing ribs 15; wave inlet holes 16 are opened on the lower outer side of the annular air chamber 8, and the number of wave inlet holes 16 is the same as the number of wave energy power generation modules 6.

[0060] In this embodiment of the invention, the wave energy generation module 6 includes an air pipe 12, a turbine 13, and a permanent magnet generator 14. An air pipe 12 is installed at the top of an annular air chamber 8, extending upwards from the top surface of the foundation platform. The turbine 13 is installed at the top of the air pipe 12, and the permanent magnet generator 14 is installed on top of the turbine 13. The turbine 13 and the permanent magnet generator 14 rotate synchronously via a coupling. Reinforcing ribs 15 are provided inside the annular air chamber 8. The reinforcing ribs 15 are plate-shaped, connecting the inner and outer walls of the air chamber. The height of the reinforcing ribs 15 is less than the height of the annular air chamber 8, and a hole is drilled in the middle of the reinforcing ribs 15 to ensure airflow throughout the air chamber. Wave inlet holes 16 are provided at the lower outer side of the annular air chamber 8, connecting it to the external seawater. The number of wave inlet holes 16 is the same as the number of wave energy generation modules 6, which helps to improve the efficiency of wave energy capture and enhance the adaptability and stability of the device.

[0061] It should be noted that the wave inlet 16 is located below the waterline, corresponding to the position of the air pipe 12, and the reinforcing ribs 15 and the wave inlet 16 are staggered in the circumferential direction of the foundation platform.

[0062] It should be noted that the design of the annular air chamber 8 makes full use of the structure of the floating foundation platform 1 without adding any additional structures, while ensuring the wave energy capture efficiency and the hydrodynamic performance of the platform.

[0063] It is worth mentioning that the turbine 13 obtains energy from the annular air chamber 8 through the air pipe 12. This combination structure of the annular air chamber and the wave energy power generation module improves the overall energy conversion efficiency.

[0064] It should be noted that turbine 13 is the Wells turbine 13, which can convert the bidirectional flow of airflow into rotation in the same direction, thereby improving the conversion efficiency of wave energy power generation.

[0065] See Figure 1 As shown, the photovoltaic power generation module 3 includes a photovoltaic panel and a photovoltaic panel bracket; the photovoltaic panel bracket is fixedly installed on both sides of the wind turbine column 2, and the photovoltaic panel is fixedly installed on the photovoltaic panel bracket.

[0066] In this embodiment of the invention, the photovoltaic power generation module 3 includes a photovoltaic panel and a photovoltaic panel bracket. The photovoltaic panel bracket is fixedly installed on both sides of the wind turbine column 2, and the photovoltaic panel is fixedly installed on the photovoltaic panel bracket. This makes full use of vertical space and reduces the horizontal footprint, allowing more photovoltaic panels to be installed in a limited space and improving space utilization efficiency.

[0067] See Figure 3 As shown, a fan 17 is installed inside the second-floor equipment compartment 10, and the fan 17 is close to the bottom of the second-floor equipment compartment 10; a ventilation pipe 18 is installed vertically through the floating base platform 1; the lower end of the ventilation pipe 18 is connected to the fan 17, and the upper end of the ventilation pipe 18 passes through the top of the floating base platform 1.

[0068] In this embodiment of the invention, a ventilation duct 18 is vertically installed through the floating base platform 1, extending from the top of the floating base platform 1 to the interior of the second-level equipment compartment 10. The upper end of the ventilation duct 18 is curved and opens downwards, while the lower end extends to near the bottom of the second-level equipment compartment 10 and is equipped with a fan 17. This helps to extract heat from the second-level equipment compartment 10 and discharge it to the top of the floating base platform 1 through the ventilation duct 18, thereby reducing the temperature inside the second-level equipment compartment 10 and ensuring the normal operation and extended service life of the energy storage battery 7 and the power conversion module. The ventilation duct and fan fully guarantee the oxygen needs of personnel working in the device and the operation of the hydrogen fuel cell, while effectively discharging any hydrogen discharged or leaked from the hydrogen energy system outside the device, improving the safety and reliability of the device.

[0069] See Figure 3As shown, a counterweight pipe 19 is vertically inserted through the floating base platform 1; the lower end of the counterweight pipe 19 is located in the counterweight chamber 11, and the upper end of the counterweight pipe 19 passes through the top of the floating base platform 1; a plug 20 is installed on the upper end of the counterweight pipe 19.

[0070] In this embodiment of the invention, a counterweight pipe 19 is vertically inserted through the floating base platform 1. The upper end of the counterweight pipe 19 is higher than the top surface of the floating base platform 1, and the lower end of the counterweight pipe 19 is slightly lower than the top surface of the counterweight chamber 11. The counterweight is added to the counterweight chamber through the counterweight pipe 19. A cap 20 is installed at the upper end of the counterweight pipe 19, which can effectively seal the upper end of the counterweight pipe 19, preventing seawater or foreign objects from entering the interior of the floating base platform 1 through the counterweight pipe 19, thus ensuring the stability of the internal equipment of the floating base platform 1.

[0071] See Figure 2 As shown, the energy storage component also includes a hydrogen energy component, which includes a hydrogen production module 21, a hydrogen storage tank 27, and a hydrogen fuel cell 22. The hydrogen production module 21 is used to receive electrical energy output from the power conversion module 5, generate hydrogen through water electrolysis, and transport the hydrogen to the hydrogen storage tank 27. The hydrogen fuel cell 22 uses the hydrogen in the hydrogen storage tank 27 to generate electricity, and the obtained electrical energy is transported to the power conversion module 5.

[0072] In this embodiment of the invention, the hydrogen energy component includes a hydrogen production module 21, a hydrogen storage tank 27, and a hydrogen fuel cell 22. The hydrogen production module 21 is used to obtain electrical energy output from the power conversion module 5 and use the electrical energy to produce hydrogen gas, which is then transported to the hydrogen storage tank 27. The hydrogen fuel cell 22 is used to generate electricity using the hydrogen gas in the hydrogen storage tank 27, and the corresponding electrical energy is then transported to the power conversion module 5.

[0073] In another embodiment, the power conversion module 5 is used to receive electrical energy output from the wave power generation module 6, the wind turbine 4, the hydrogen fuel cell 22, the energy storage battery 7, and the photovoltaic power generation module, and can transmit the electrical energy to external electrical equipment, the hydrogen production module 21, or the energy storage battery 7.

[0074] See Figure 1 As shown, the floating base platform 1 has a material hole 23 on its top, and the lower end of the material hole 23 is located inside the second-floor equipment compartment 10.

[0075] In this embodiment of the invention, a material hole 23 is provided at the top of the floating foundation platform 1, which leads directly to the second-level chamber of the platform. The material hole 23 is used for hoisting equipment inside the floating foundation platform 1 and for personnel to move up and down.

[0076] See Figure 1 As shown, exhaust holes 24 are evenly distributed around the outer circumference of the fan column 2; a column support 25 is provided on the side of the fan column 2 near the material hole 23, and one end of the column support 25 is fixedly installed on the top of the floating foundation platform 1.

[0077] In this embodiment of the invention, the fan column 2 has a hollow structure, and four hollow downward-curved pipes are arranged on the outer side of the fan column 2 as exhaust holes 24 for wiring and ventilation. A column support 25 is arranged on the side of the fan column 2 near the material hole 23, which can support the fan column 2. A lifting ring is installed on the crossbeam of the column support 25 above the material hole 23 for hoisting the equipment.

[0078] See Figure 1 As shown, the bottom of the floating foundation platform 1 is provided with anchor chains 26 for fixing the floating foundation platform 1.

[0079] An anchor chain 26 has an anchor head connected to one end.

[0080] In this embodiment of the invention, three anchor chains 26 are connected to the bottom of the platform, and one end of each anchor chain 26 is connected to an anchor head for fixing the floating foundation platform 1.

[0081] It should be noted that, for reference Figure 5 As shown, the wind turbine 4, wave energy generation module 6, photovoltaic panel, hydrogen fuel cell 22, and hydrogen production module 21 are all connected to the power conversion module 5. The power conversion module 5 is equipped with an external power supply port to supply power to external electrical equipment. The electrical energy generated by the wind turbine 4, wave energy generation module 6, and photovoltaic panel is collected in the power conversion module 5. The hydrogen production module 21 draws power from the power conversion module 5 to produce hydrogen, which is stored in the hydrogen storage tank 27. The hydrogen fuel cell 22 consumes the hydrogen in the hydrogen storage tank 27 to generate electricity, which is then supplied to the power conversion module 5. The energy storage battery 7 can draw power from the power conversion module 5 for storage, or it can supply the electrical energy in the battery to the power conversion module 5 to supply power to external devices.

[0082] It should be noted that the lead wires of the permanent magnet generator 14 of the wave energy power generation module 6 are arranged along the top surface of the floating foundation platform 1 and the surface of the wind turbine column 2. They enter the first-floor equipment compartment 9 through the wire holes (exhaust holes 24) of the wind turbine column 2 and the hollow structure of the wind turbine column 2. Similarly, the lead wires of the wind turbine generator 4 and the photovoltaic panel also enter the first-floor equipment compartment 9 through the wire holes of the wind turbine column 2 and the hollow structure of the wind turbine column 2. The electrical wiring in the first-floor equipment compartment 9 is arranged along the floor, inner walls, and ceiling of the compartment. Holes are drilled in the floor of the first-floor equipment compartment 9 near the locations of equipment such as the hydrogen fuel cell 22 and the hydrogen production module 21 to connect to the second-floor equipment compartment 10 for circuit arrangement.

[0083] It should be noted that when external equipment is powered, its electrical lines are also arranged along the top surface of the floating foundation platform 1 and the surface of the fan column 2, and enter the equipment compartment through the wire hole of the fan column 2 and the hollow structure of the fan column 2, and finally converge at the power conversion module 5.

[0084] In this embodiment of the invention, a wind turbine 4, a photovoltaic power generation module 3, a hydrogen energy module, and a wave energy power generation module 6 are integrated onto a floating foundation platform 1, improving the utilization rate of renewable energy at sea and ensuring the overall power supply reliability of the device. Compared with traditional power equipment, this invention overcomes the technical problems of single power supply methods, insufficient reliability, and inability to meet the long-term stable power demand of offshore power equipment. By rationally arranging different power supply equipment, the invention ensures the optimization of energy production under different weather and sea conditions, thereby improving the reliability of the power supply equipment.

[0085] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0086] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0087] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0088] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-energy complementary combined power generation device for marine applications, characterized in that, It includes floating foundation platforms, wind turbines, wind turbine columns, photovoltaic power generation modules, energy storage modules, and power conversion modules; A drilled hole is provided at the center of the top of the floating foundation platform, and the bottom of the wind turbine column is fixedly installed on the outer edge of the drilled hole. The wind turbine is fixedly installed on the top of the wind turbine column, and the photovoltaic power generation module is fixedly installed on both sides of the wind turbine column; Multiple wave energy generation modules are evenly distributed around the top circumference of the floating foundation platform. The power conversion module is fixedly installed inside the floating foundation platform; The power conversion module, the wave energy generation module, the wind turbine, the energy storage component, and the photovoltaic power generation component are electrically connected. The power conversion module is used to receive the electrical energy output from the wave energy generation module, the wind turbine, the energy storage component, and the photovoltaic power generation component, and to transmit the electrical energy to external electrical equipment, hydrogen energy components, or energy storage batteries. The floating foundation platform is vertically arranged with a double-layer cabin, a second-layer equipment cabin, and a counterweight cabin. The energy storage component includes an energy storage battery; The double-layered cabin includes an annular air chamber and a single-layer equipment compartment, and the annular air chamber and the single-layer equipment compartment are located on the same axis of symmetry. The hydrogen energy component is fixedly installed inside the first-floor equipment compartment, and the power conversion module and the energy storage battery are fixedly installed inside the second-floor equipment compartment. The wave energy generation module includes a gas pipe, a turbine, and a permanent magnet generator; The air pipe is installed through the top of the annular air chamber, and the turbine is fixedly installed on the top of the air pipe; The turbine is connected to the permanent magnet generator via a coupling; The annular air chamber has multiple reinforcing ribs evenly distributed around its central circumference, and the outer wall and inner wall of the annular air chamber are connected by the reinforcing ribs. The annular air chamber has wave inlet holes on its lower side, and the number of wave inlet holes is the same as the number of wave energy generation modules.

2. The offshore multi-energy complementary combined power generation device according to claim 1, characterized in that, The photovoltaic power generation component includes a photovoltaic panel and a photovoltaic panel support; The photovoltaic panel bracket is fixedly installed on both sides of the wind turbine column, and the photovoltaic panel is fixedly installed on the photovoltaic panel bracket.

3. The offshore multi-energy complementary combined power generation device according to claim 1, characterized in that, The second-floor equipment compartment is equipped with a fan, and the fan is located close to the bottom of the second-floor equipment compartment; The floating foundation platform is equipped with a ventilation pipe running vertically through it; The lower end of the ventilation duct is connected to the fan, and the upper end of the ventilation duct passes through the top of the floating foundation platform, with the upper part of the ventilation duct being a downward-bent pipe.

4. The offshore multi-energy complementary combined power generation device according to claim 1, characterized in that, The floating foundation platform is vertically permeated with a counterweight tube; The lower end of the counterweight tube is located in the counterweight compartment, and the upper end of the counterweight tube passes through the top of the floating foundation platform; A plug is installed at the upper end of the counterweight tube.

5. The offshore multi-energy complementary combined power generation device according to claim 1, characterized in that, The energy storage component also includes a hydrogen energy component, wherein the hydrogen energy component includes a hydrogen production module, a hydrogen storage tank, and a hydrogen fuel cell; The hydrogen production module is used to receive electrical energy output from the power conversion module, use the electrical energy output from the power conversion module to electrolyze water to generate hydrogen, and transport the hydrogen to a hydrogen storage tank for storage. The hydrogen fuel cell is used to convert the hydrogen in the hydrogen storage tank into electrical energy, which is then delivered to the power conversion module.

6. The offshore multi-energy complementary combined power generation device according to claim 1, characterized in that, The floating foundation platform has a material opening at the top, and the lower end of the material opening is located inside the second-level equipment compartment.

7. The offshore multi-energy complementary combined power generation device according to claim 6, characterized in that, The fan column has exhaust holes evenly distributed around its outer circumference. The fan column is provided with a column support on the side near the material hole, and one end of the column support is fixedly installed on the top of the floating foundation platform.

8. The offshore multi-energy complementary combined power generation device according to any one of claims 1-7, characterized in that, The bottom of the floating foundation platform is equipped with anchor chains for securing the floating foundation platform. One end of the anchor chain is connected to an anchor head.

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