An integrated power generation system with seabed hydrogen energy storage

Abstract

This utility model relates to the field of new energy technology and discloses an integrated power generation system for seabed hydrogen energy storage. The integrated power generation system for seabed hydrogen energy storage includes an energy conversion module, an energy collection module, a water electrolysis hydrogen production module, and a hydrogen storage module. The energy conversion module includes multiple power generation components for generating electricity. The energy collection module is connected to the energy conversion module and includes a booster station (3) for collecting the electricity generated by the power generation components. The water electrolysis hydrogen production module is connected to the energy collection module and includes a water electrolysis hydrogen production platform (4) for using the electricity collected by the booster station (3) to electrolyze seawater to produce hydrogen. The hydrogen storage module is connected to the water electrolysis hydrogen production module and includes a hydrogen storage tank (5) for storing the hydrogen produced by the water electrolysis hydrogen production platform (4). This utility model can maximize the rational utilization of resources and improve the stable operation of the power grid.

Description

Technical Field

[0001] This utility model relates to the field of new energy technology, specifically to an integrated power generation system for seabed hydrogen energy storage. Background Technology

[0002] With the continuous development of my country's energy industry, the traditional energy structure is gradually shifting from thermal power generation to a diversified, cleaner, and low-carbon new energy model. my country possesses abundant offshore wind and solar energy resources. Offshore wind power and floating photovoltaic power generation represent new trends in the development of the wind and photovoltaic industries. Both have advantages such as not occupying land resources, abundant available resources, and equipment installation and transportation not being constrained by geographical conditions, making them key areas for my country's new energy development. However, the fluctuations and intermittent behavior of wind and photovoltaic power generation are uncertain. With the large-scale grid connection of offshore wind and floating photovoltaic power generation, the amount of electricity not being consumed in a timely manner is increasing. The intermittent and fluctuating nature of renewable energy generation poses a challenge to grid stability. To rationally utilize energy and improve energy efficiency, energy storage devices are needed to collect and store excess energy that is not consumed in a timely manner over a certain period. Therefore, energy storage technology is key to solving this problem. Among these, hydrogen energy storage is considered one of the most promising energy storage methods due to its high energy density, long storage time, and ability to be transported across regions.

[0003] Hydrogen energy storage, as an ideal energy carrier, is widely available and exists in various forms. It possesses excellent combustibility and renewability, allowing for large-scale storage. Especially when electricity is abundant, energy can be stored as hydrogen through water electrolysis. Hydrogen energy is currently widely used in various sectors of industrial production. However, hydrogen energy storage currently faces several challenges. First, it requires a large land area, necessitating high-pressure containers or underground salt caverns, limiting its application in areas with limited land resources. Second, it is costly, requiring specialized facilities for storage, transportation, and reuse, increasing system costs. Third, it has low efficiency, with energy losses occurring during storage, transportation, and reuse, reducing overall system efficiency. Fourth, it carries significant safety risks, as hydrogen is a flammable and explosive gas; storage and transportation under high pressure may result in fires or explosions, and terrestrial storage requires stringent environmental conditions. Utility Model Content

[0004] In view of this, the present invention provides an integrated power generation system for seabed hydrogen energy storage, so as to maximize the rational use of resources and improve the stable operation of the power grid.

[0005] In a first aspect, this utility model provides an integrated power generation system for seabed hydrogen energy storage. This integrated power generation system includes an energy conversion module, an energy collection module, a water electrolysis hydrogen production module, and a hydrogen storage module. The energy conversion module, energy collection module, and water electrolysis hydrogen production module are located above sea level (101), while the hydrogen storage module is located below sea level (101). The energy conversion module includes multiple power generation components used to generate electricity; the energy collection module and the energy conversion module... The connection includes a power collection module, which includes a booster station (3) for collecting the power generated by the power generation components; a water electrolysis hydrogen production module is connected to the power collection module, which includes a water electrolysis hydrogen production platform (4) for using the power collected by the booster station (3) to electrolyze seawater to produce hydrogen; and a hydrogen energy storage module is connected to the water electrolysis hydrogen production module, which includes a hydrogen storage tank (5) for storing the hydrogen produced by the water electrolysis hydrogen production platform (4).

[0006] The integrated power generation system for seabed hydrogen energy storage provided by this utility model converts other forms of energy into electrical energy. Both the water electrolysis hydrogen production module and the hydrogen energy storage module are located at sea, which can effectively save land resources. The hydrogen storage facility is built on the seabed, making full use of the ocean space. The seabed has low temperature and stable pressure, which is conducive to improving the hydrogen storage efficiency.

[0007] In one alternative implementation, the power generation components include an offshore wind turbine (1) and an offshore floating photovoltaic power generation component (2), wherein the offshore wind turbine (1) is used to convert wind energy into electrical energy and the offshore floating photovoltaic power generation component (2) is used to convert solar energy into electrical energy.

[0008] In one alternative implementation, the offshore wind turbine generator set (1) includes multiple pile-based large-capacity offshore wind turbines, and / or multiple floating large-capacity offshore wind turbines, and / or multiple tension leg large-capacity offshore wind turbines.

[0009] In one alternative implementation, the offshore floating photovoltaic power generation module (2) includes multiple centralized photovoltaic power generation modules and / or multiple distributed photovoltaic power generation modules.

[0010] In one alternative embodiment, the photovoltaic power generation module includes a bifacial photovoltaic panel, wherein the front photovoltaic panel of the bifacial photovoltaic panel is used to convert solar energy into electrical energy using direct sunlight, and the back photovoltaic panel of the bifacial photovoltaic panel is used to convert solar energy into electrical energy using reflected light from the sea surface (101).

[0011] In one alternative implementation, the integrated power generation system for seabed hydrogen energy storage also includes a power grid (9), which is connected to the power collection module via a grid connection line, and the booster station (3) is also used to transmit the collected power to the power grid (9).

[0012] In one optional embodiment, the hydrogen energy storage module further includes a hydrogen storage and transportation pipeline (6) and an anchor cable (7). The hydrogen storage tank (5) is connected to the water electrolysis hydrogen production platform (4) through the hydrogen storage and transportation pipeline (6) and connected to the seabed surface (102) through the anchor cable (7). The hydrogen generated by the water electrolysis hydrogen production platform (4) is transmitted to the hydrogen storage tank (5) through the hydrogen storage and transportation pipeline (6).

[0013] In one alternative embodiment, the hydrogen energy storage module further includes a gas supply and transportation pipeline (8) for transferring hydrogen from the hydrogen storage tank (5) to an external device (10).

[0014] In one alternative embodiment, the hydrogen storage tank (5) includes a valve for regulating the pressure difference between the inside and outside of the hydrogen storage tank (5) to achieve hydrogen transfer.

[0015] In one alternative embodiment, the hydrogen storage tank (5) includes a flexible composite material capsule (51).

[0016] The integrated power generation system for submarine hydrogen energy storage provided by this utility model integrates wind, solar and energy storage, realizing the simultaneous generation and grid connection of power generation and energy storage, improving energy storage efficiency, maximizing the rational use of resources and improving the stable operation of the power grid. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an integrated power generation system for seabed hydrogen energy storage according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of a hydrogen energy storage module according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of a hydrogen storage tank according to an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Offshore wind turbine generator set; 2. Offshore floating photovoltaic power generation module; 3. Substation; 4. Electrolysis water hydrogen production platform; 5. Hydrogen storage tank; 6. Hydrogen storage and transportation pipeline; 7. Anchor cable; 8. Gas supply and transportation pipeline; 9. Power grid; 10. External equipment; 51. Flexible composite material capsule; 101. Sea level; 102. Seabed level; 201. Hydrogen pressure; 202. Seawater pressure. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Hydrogen energy storage, as an ideal energy carrier, can store energy in the form of hydrogen through water electrolysis. my country has a long coastline and abundant marine resources, providing a natural advantage for seawater electrolysis hydrogen production, which can save a significant amount of freshwater resources. Hydrogen production from offshore wind power and photovoltaic power can simultaneously solve the problems of large-scale grid connection and high power transmission costs for offshore power generation projects, and is particularly beneficial for the utilization of energy in the deep sea. Therefore, this utility model mainly provides an integrated power generation system for seabed hydrogen energy storage, offering a new method for new energy storage, maximizing the rational utilization of resources, and improving the stable operation of the power grid.

[0028] According to an embodiment of this utility model, an integrated power generation system for seabed hydrogen energy storage is provided. The integrated power generation system for seabed hydrogen energy storage includes an energy conversion module, an energy collection module, a water electrolysis hydrogen production module, and a hydrogen energy storage module. The energy conversion module, energy collection module, and water electrolysis hydrogen production module are located above sea level (101), while the hydrogen energy storage module is located below sea level (101). Both the water electrolysis hydrogen production module and the hydrogen energy storage module of this utility model are located in the marine environment, which can effectively save land resources by constructing hydrogen storage facilities on the seabed, making full use of marine space. Hydrogen stored on the seabed has a low temperature and stable pressure, which is conducive to improving hydrogen storage efficiency and improving the overall system efficiency. Please refer to... Figure 1 , Figure 1 This is a schematic diagram of an integrated power generation system for submarine hydrogen energy storage according to an embodiment of the present utility model.

[0029] The power conversion module includes multiple power generation components, which are used to convert other forms of energy into electrical energy. These other forms of energy can be solar energy, wind energy, etc., to complete the conversion of solar energy and wind energy into electrical energy, thereby maximizing power generation efficiency.

[0030] In one implementation, the power generation components include an offshore wind turbine (1) and an offshore floating photovoltaic power generation component (2).

[0031] Among them, the offshore wind turbine generator (1) is used to convert wind energy into electrical energy, and the offshore floating photovoltaic power generation module (2) is used to convert solar energy into electrical energy.

[0032] Offshore wind turbines can be categorized into pile-based large-capacity offshore wind turbines, floating large-capacity offshore wind turbines, and tension leg large-capacity offshore wind turbines, among others.

[0033] Preferably, the offshore wind power generation unit is a combination of multiple offshore wind turbines. Understandably, the offshore wind power generation unit includes multiple pile-based large-capacity offshore wind turbines, and / or multiple floating large-capacity offshore wind turbines, and / or multiple tension leg large-capacity offshore wind turbines.

[0034] Floating photovoltaic power generation modules (2) can be centralized or distributed photovoltaic power generation modules.

[0035] Preferably, the floating photovoltaic power generation module (2) is a combination of multiple forms of photovoltaic power generation modules. Understandably, the floating photovoltaic power generation module (2) includes multiple centralized photovoltaic power generation modules and / or multiple distributed photovoltaic power generation modules.

[0036] Furthermore, the photovoltaic power generation module adopts a double-sided photovoltaic panel. The front photovoltaic panel of the double-sided photovoltaic panel is used to convert solar energy into electrical energy using direct sunlight, and the back photovoltaic panel of the double-sided photovoltaic panel is used to convert solar energy into electrical energy using reflected light from the sea surface (101), so as to make full use of solar energy resources to improve power generation efficiency.

[0037] This invention utilizes an offshore wind turbine generator and an offshore floating photovoltaic power generation module to convert wind and solar energy into electricity. Both technologies offer advantages such as not occupying land resources, abundant available resources, and ease of installation and transportation regardless of geographical constraints, achieving multi-energy complementary power generation and effectively improving grid stability. The offshore floating photovoltaic panel uses bifacial photovoltaic modules. Compared to onshore centralized and distributed photovoltaic power generation systems, offshore solar energy resources are abundant. The bifacial photovoltaic module utilizes reflected light from the sea surface on its reverse side to generate electricity, fully utilizing solar energy resources and improving power generation efficiency.

[0038] The power collection module is connected to the power conversion module. The power collection module includes a booster station (3), which is used to collect the power generated by the power generation components.

[0039] In one implementation, the booster station (3) is connected to the offshore wind turbine generator (1) and the offshore floating photovoltaic power generation module (2) respectively, for collecting the electrical energy generated by the offshore wind turbine generator (1) and the offshore floating photovoltaic power generation module (2).

[0040] The water electrolysis hydrogen production module is connected to the power collection module. The water electrolysis hydrogen production module includes a water electrolysis hydrogen production platform (4). The water electrolysis hydrogen production platform (4) is used to electrolyze seawater to produce hydrogen using the power collected by the booster station (3) and store the energy in the form of hydrogen.

[0041] The hydrogen energy storage module is connected to the water electrolysis hydrogen production module. The hydrogen energy storage module includes a hydrogen storage tank (5), which is used to store the hydrogen produced by the water electrolysis hydrogen production platform (4).

[0042] Please see Figure 2 , Figure 2 This is a schematic diagram of a hydrogen energy storage module according to an embodiment of the present utility model.

[0043] In one implementation, the hydrogen energy storage module includes a hydrogen storage tank (5), a hydrogen transport pipeline (6), and an anchor cable (7). The hydrogen storage tank (5) is connected to a water electrolysis hydrogen production platform (4) via the hydrogen transport pipeline (6), and the hydrogen produced by the water electrolysis hydrogen production platform (4) is transported to the hydrogen storage tank (5) via the hydrogen transport pipeline (6). The hydrogen storage tank (5) is connected to the seabed surface (102) via the anchor cable (7) to fix the hydrogen storage tank (5).

[0044] In one implementation, the hydrogen energy storage module also includes a gas supply and transportation pipeline (8), which is used to transfer the hydrogen in the hydrogen storage tank (5) to the external equipment (10) for use by the external equipment (10) to achieve rational utilization of energy storage.

[0045] Furthermore, the gas supply and transportation pipeline (8) includes a flexible composite material capsule (51), the hydrogen storage and transportation pipeline (6) is a flexible hydrogen storage and transportation pipeline (6), and the gas supply and transportation pipeline (8) is a flexible gas supply and transportation pipeline (8).

[0046] Furthermore, the hydrogen storage tank (5) includes a valve for regulating the pressure difference between the inside and outside of the hydrogen storage tank (5) to achieve hydrogen transfer.

[0047] Specifically, please refer to Figure 3 , Figure 3 This is a schematic diagram of a hydrogen storage tank (5) according to an embodiment of the present utility model.

[0048] Specifically, the hydrogen pressure (201) is maintained higher than the seawater pressure (202), and the pressure difference is within a safe range to cope with factors such as seawater pressure fluctuations (tides, waves, ocean currents), stress relaxation of the tank material, and response time of the control system. By adjusting the valve, the pressure difference between the hydrogen pressure (201) and the seawater pressure (202) is reduced to ensure the structural stability of the hydrogen storage tank (5). To increase the pressure difference between the hydrogen pressure (201) and the seawater pressure (202), the flexible composite material capsule (51) is compressed or expanded to achieve hydrogen transmission.

[0049] Among them, the hydrogen energy storage module improves the overall safety performance. The hydrogen storage tank (5) is installed on the seabed surface (102) through the mooring system, and the constant temperature and stable pressure of the seawater effectively ensure the energy storage environment.

[0050] This invention integrates wind, solar, and energy storage to achieve coordinated operation of wind and photovoltaic power generation devices within a hydrogen energy storage and electricity conversion module. It converts wind and solar energy into electricity while simultaneously storing the electricity, maximizing energy storage efficiency. Furthermore, the marine environment, being far from land, effectively reduces the safety hazards of hydrogen leaks and explosions. Therefore, this invention achieves multi-energy complementary energy storage while ensuring clean energy storage, effectively improving energy storage efficiency and possessing broad application value.

[0051] According to an embodiment of the present invention, another embodiment of an integrated power generation system for seabed hydrogen energy storage is provided. The integrated power generation system for seabed hydrogen energy storage also includes a power grid (9), which is connected to the power collection module via a grid connection line, and the booster station (3) is also used to transmit the collected power to the power grid (9).

[0052] Specifically, the offshore wind turbine generator (1) in the power conversion module uses abundant offshore wind resources to convert wind energy into electrical energy, and the offshore floating photovoltaic power generation module (2) uses direct sunlight on the front and reflected light from the sea surface (101) on the back to generate electricity, making full use of solar energy resources to convert them into electrical energy, thereby improving power generation efficiency.

[0053] Furthermore, the booster station (3) in the power collection module collects the electrical energy converted by the offshore wind turbine generator (1) and the offshore floating photovoltaic power generation module (2), and transmits the electrical energy to the power grid (9) through the grid connection line to supply electricity to the power grid (9).

[0054] When the booster station (3) has surplus electrical energy, the water electrolysis hydrogen production platform (4) of the water electrolysis hydrogen production module uses the electrical energy generated by the power conversion module to electrolyze seawater to produce hydrogen, so as to realize the storage of energy in the form of hydrogen.

[0055] Understandably, when there is unabsorbable electricity in the grid connected to the grid, hydrogen can be converted using the water electrolysis hydrogen production platform (4) of the water electrolysis hydrogen production module.

[0056] This invention integrates wind, solar, and energy storage, enabling simultaneous power generation and grid connection with energy storage, thereby improving energy storage efficiency.

[0057] Furthermore, the hydrogen produced by the water electrolysis hydrogen production platform (4) is compressed through the flexible hydrogen storage and transportation pipeline (6) to the hydrogen storage tank (5) of the flexible composite material capsule (51). The size of the hydrogen storage tank (5) can change with the internal pressure. The hydrogen is finally stored in the hydrogen energy storage module. This module mainly completes the storage of hydrogen. At the same time, the structural stability and external equipment (10) can be achieved by adjusting the pressure difference between the internal pressure of the hydrogen storage tank (5) and the seawater pressure (202).

[0058] Furthermore, when the external device (10) has a demand for hydrogen, the hydrogen is transferred from the gas supply pipeline (8) to the external device (10) by adjusting the pressure difference between the internal pressure of the hydrogen storage tank (5) and the seawater pressure (202) to meet the power demand of the external device (10).

[0059] The device and its optimized solution, through a three-pronged improvement in material innovation, intelligent control, and structural design, have the following advantages:

[0060] 1. This utility model uses the power conversion modules of offshore wind turbine generator sets and offshore floating photovoltaic power generation components to convert wind energy and solar energy into electrical energy respectively. Both have the advantages of not occupying land resources, having abundant resources, and not being restricted by geographical conditions for equipment installation and transportation. This achieves the purpose of multi-energy complementary power generation and effectively improves the stability of the power grid.

[0061] 2. The floating photovoltaic panel in this utility model adopts a double-sided photovoltaic module. Compared with the centralized and distributed photovoltaic power generation system on land, the marine solar energy resources are abundant. The double-sided photovoltaic module uses the reflected light from the sea surface on the reverse side to generate electricity, which can make full use of solar energy resources and improve power generation efficiency.

[0062] 3. In this invention, both the water electrolysis hydrogen production platform module and the hydrogen energy storage module are located at sea, which can effectively save land resources. By constructing the hydrogen storage facility on the seabed, it makes full use of marine space. Storing hydrogen on the seabed, where the temperature is low and the pressure is stable, is beneficial to improving hydrogen storage efficiency.

[0063] 4. This utility model integrates wind, solar, and energy storage, enabling simultaneous power generation and grid connection with energy storage. Furthermore, the integration of wind, solar, and energy storage allows for the coordinated operation of wind and photovoltaic power generation devices within the hydrogen energy storage and electricity conversion module. This allows for the simultaneous conversion of wind and solar energy into electrical energy and the storage of that electrical energy, maximizing energy storage efficiency.

[0064] 5. The hydrogen energy storage module in this invention improves overall safety performance. The hydrogen storage tank is installed on the seabed via an anchoring system, which effectively reduces the impact of adverse loads such as earthquakes and ocean currents. Furthermore, the constant temperature and stable pressure of seawater effectively ensure a safe energy storage environment. In addition, the marine environment, being far from land, effectively reduces the safety hazards caused by hydrogen leaks and explosions.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated power generation system for undersea hydrogen energy storage, comprising: The integrated power generation system for submarine hydrogen energy storage includes an energy conversion module, an energy collection module, a water electrolysis hydrogen production module, and a hydrogen energy storage module. The energy conversion module, the energy collection module, and the water electrolysis hydrogen production module are located above sea level (101), while the hydrogen energy storage module is located below sea level (101). The power conversion module includes multiple power generation components, which are used to generate electrical energy. The power collection module is connected to the power conversion module. The power collection module includes a booster station (3), which is used to collect the power generated by the power generation components. The water electrolysis hydrogen production module is connected to the power collection module. The water electrolysis hydrogen production module includes a water electrolysis hydrogen production platform (4). The water electrolysis hydrogen production platform (4) is used to electrolyze seawater to produce hydrogen using the power collected by the booster station (3). The hydrogen energy storage module is connected to the water electrolysis hydrogen production module. The hydrogen energy storage module includes a hydrogen storage tank (5), which is used to store the hydrogen produced by the water electrolysis hydrogen production platform (4).

2. The integrated power generation system for submarine hydrogen energy storage according to claim 1, characterized in that, The power generation components include an offshore wind turbine generator (1) and an offshore floating photovoltaic power generation component (2). The offshore wind turbine generator (1) is used to convert wind energy into electrical energy, and the offshore floating photovoltaic power generation component (2) is used to convert solar energy into electrical energy.

3. The integrated power generation system for submarine hydrogen energy storage according to claim 2, characterized in that, The offshore wind turbine generator set (1) includes multiple pile-based large-capacity offshore wind turbines, and / or multiple floating large-capacity offshore wind turbines, and / or multiple tension leg large-capacity offshore wind turbines.

4. The integrated power generation system for seabed hydrogen energy storage according to claim 2, characterized in that, The floating photovoltaic power generation module (2) includes multiple centralized photovoltaic power generation modules and / or multiple distributed photovoltaic power generation modules.

5. The integrated power generation system for submarine hydrogen energy storage according to claim 4, characterized in that, The photovoltaic power generation module includes a double-sided photovoltaic panel. The front photovoltaic panel of the double-sided photovoltaic panel is used to convert solar energy into electrical energy using direct sunlight, and the back photovoltaic panel of the double-sided photovoltaic panel is used to convert solar energy into electrical energy using reflected light from the sea surface (101).

6. The integrated power generation system for seabed hydrogen energy storage according to claim 1, characterized in that, The integrated power generation system for submarine hydrogen energy storage also includes a power grid (9), which is connected to the power collection module via a grid connection line. The booster station (3) is also used to transmit the collected power to the power grid (9).

7. The integrated power generation system for submarine hydrogen energy storage according to claim 1, characterized in that, The hydrogen energy storage module also includes a hydrogen storage and transportation pipeline (6) and an anchor cable (7). The hydrogen storage tank (5) is connected to the water electrolysis hydrogen production platform (4) through the hydrogen storage and transportation pipeline (6) and to the seabed surface (102) through the anchor cable (7). The hydrogen generated by the water electrolysis hydrogen production platform (4) is transmitted to the hydrogen storage tank (5) through the hydrogen storage and transportation pipeline (6).

8. The integrated power generation system for submarine hydrogen energy storage according to claim 7, characterized in that, The hydrogen energy storage module also includes a gas supply and transportation pipeline (8), which is used to transfer hydrogen in the hydrogen storage tank (5) to external equipment (10).

9. The integrated power generation system for submarine hydrogen energy storage according to claim 7 or 8, characterized in that, The hydrogen storage tank (5) includes a valve, which is used to adjust the pressure difference between the inside and outside of the hydrogen storage tank (5) to achieve hydrogen transmission.

10. The integrated power generation system for submarine hydrogen energy storage according to claim 1, characterized in that, The hydrogen storage tank (5) includes a flexible composite material capsule (51).

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