Clean energy power generation system applied to island environment

Abstract

The utility model provides a clean energy power generation system applied to an island environment, the power output end of a hydrogen gas turbine unit is connected with an independent power grid of an island, the hydrogen input end of the hydrogen gas turbine unit is connected with the hydrogen output end of a hydrogen energy storage device, and the hydrogen gas turbine unit supplies hydrogen to the island based on hydrogen supplied by the hydrogen energy storage device. The hydrogen output end of the PEM hydrogen production device is connected with the hydrogen input end of the hydrogen energy storage device, the PEM hydrogen production device prepares hydrogen resources through water around the island and supplies the hydrogen resources to the hydrogen energy storage device, and the hydrogen energy storage device comprises a plurality of high-pressure hydrogen storage tanks. The high-pressure hydrogen storage tank is arranged in a high-terrain and well-ventilated area in the island environment, and the main control unit is used for controlling the electric energy supply efficiency of the power generation system according to the power utilization requirement of an independent power grid of the island and the natural environment condition of the island. According to the utility model, the stable and clean power supply function of the power generation system in the island environment can be realized, and the power generation system can adapt to the extreme natural environment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to power generation system technical field especially relates to a kind of clean energy power generation systems applied to island environment. BACKGROUND

[0002] Island areas are usually far away from mainland power grid, so it is difficult to obtain stable power grid power support, and relying on traditional diesel power generation system for independent power supply is not only high in cost, and due to the special geographical location of islands, transportation is not convenient, resulting in high transportation cost of conventional energy (such as coal, oil, etc.) and great influence by weather conditions, which will also lead to poor stability of power supply, in addition, the traditional diesel power generation system is easy to pollute the island environment, and cannot meet the stable, clean and strong adaptability to environment of power generation requirement in island areas. SUMMARY

[0003] The utility model provides a kind of clean energy power generation systems applied to island environment, to solve the technical problem that conventional power generation system cannot realize stable, clean and power supply function that can adapt to extreme natural environment under the special environment of island in prior art.

[0004] To solve the above problems, the technical scheme of the utility model is as follows: a kind of clean energy power generation systems applied to island environment, comprising: hydrogen combustion turbine unit, PEM hydrogen production device, hydrogen energy storage device and master unit;

[0005] The power output end of the hydrogen combustion turbine unit is connected with island independent power grid, the hydrogen input end of the hydrogen combustion turbine unit is connected with the hydrogen output end of the hydrogen energy storage device through first gas pipeline, and the hydrogen combustion turbine unit is configured to perform power generation operation to provide power to island independent power grid based on the hydrogen supplied by the hydrogen energy storage device;

[0006] The hydrogen output end of the PEM hydrogen production device is connected with the hydrogen input end of the hydrogen energy storage device through second gas pipeline, and the PEM hydrogen production device is configured to prepare hydrogen resources from water around island and supply to the hydrogen energy storage device;

[0007] The hydrogen energy storage device includes a plurality of high-pressure hydrogen storage tanks, and the high-pressure hydrogen storage tanks are arranged in areas with high terrain and good ventilation in island environment.

[0008] The master unit is electrically connected with the hydrogen combustion turbine unit, the PEM hydrogen production device and the hydrogen energy storage device respectively, for controlling the power supply efficiency of power generation system according to the power demand of island independent power grid and the natural environment conditions of island.

[0009] Preferably, the clean energy power generation system applied to island environment is also provided with a waste heat seawater desalination device, a water body input end of the waste heat seawater desalination device is used to extract seawater around the island, a water body output end of the waste heat seawater desalination device is connected with the water body input end of the PEM hydrogen production device through a first water body pipeline, and the waste heat seawater desalination device is configured to utilize the waste heat generated by the hydrogen combustion turbine set power generation operation to desalinate seawater and supply pure water to the PEM hydrogen production device.

[0010] Preferably, the clean energy power generation system applied to island environment is also provided with a waste heat seawater desalination device, a water body input end of the waste heat seawater desalination device is used to extract seawater around the island, a water body output end of the waste heat seawater desalination device is connected with the water body input end of the PEM hydrogen production device through a first water body pipeline, and the waste heat seawater desalination device is configured to utilize the waste heat generated by the hydrogen combustion turbine set power generation operation to desalinate seawater and supply pure water to the PEM hydrogen production device.

[0011] Preferably, the hydrogen combustion turbine set is provided with a three-way flow valve body, an input end of the three-way flow valve body is in communication with the waste heat output end of the hydrogen combustion turbine set, a first output end of the three-way flow valve body is in communication with the heat source input end of the waste heat seawater desalination device, a second output end of the three-way flow valve body is in communication with the heat source input end of the waste heat lithium bromide refrigeration device, and the main control unit is electrically connected with the three-way flow valve body, and the three-way flow valve body is configured to adjust the opening and closing ratio of the first output end and the second output end of the three-way flow valve body based on the hydrogen storage amount of the hydrogen storage device.

[0012] Preferably, the hydrogen input end of the hydrogen combustion turbine set is provided with a hydrogen purification device, and the hydrogen purification device is used to remove impurities in the hydrogen output by the hydrogen storage device.

[0013] Preferably, the hydrogen input end of the hydrogen combustion turbine set is also provided with a hydrogen flow control device, the main control unit is electrically connected with the hydrogen flow control device, and the hydrogen flow control device is used to adjust the hydrogen supply amount to the hydrogen combustion turbine set according to the island independent power grid electricity demand.

[0014] Preferably, each of the plurality of high-pressure hydrogen storage tanks is equipped with a pressure sensor, and each of the plurality of high-pressure hydrogen storage tanks has an independent gas regulating valve body at its hydrogen input end and hydrogen output end. The main control unit is electrically connected to the pressure sensor and the gas regulating valve body respectively. The gas regulating valve body is used to adjust the opening and closing flow of the hydrogen input end and hydrogen output end of the different high-pressure hydrogen storage tanks according to the difference in hydrogen storage amount in the different high-pressure hydrogen storage tanks.

[0015] Preferably, the exterior of the high-pressure hydrogen storage tank is coated with an aerogel or polyurethane foam material.

[0016] Furthermore, the high-pressure hydrogen storage tank is equipped with a stainless steel or titanium alloy shell, or is coated with an epoxy resin coating.

[0017] Preferably, the clean energy power generation system applied to the island environment is equipped with a photovoltaic power generation device, the power output terminal of which is connected to the PEM hydrogen production device, and the photovoltaic power generation device is configured to provide independent power to the PEM hydrogen production device using solar energy in the island environment;

[0018] The clean energy power generation system applied to island environments is equipped with a wind power generation device. The power output terminal of the wind power generation device is connected to the PEM hydrogen production device. The wind power generation device is configured to use wind energy in the island environment to provide independent power to the PEM hydrogen production device.

[0019] Preferably, the clean energy power generation system applied to the island environment is further equipped with a meteorological monitoring component. The main control unit is electrically connected to the meteorological monitoring component. The meteorological monitoring component is configured to monitor the meteorological data of the island environment where the power generation system is located, and assist the main control unit in regulating the power supply efficiency of the hydrogen-gas turbine unit.

[0020] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0021] The utility model provides a kind of clean energy power generation system applied to island environment, be equipped with hydrogen combustion steam turbine unit, PEM hydrogen production device, hydrogen energy storage device, waste heat seawater desalination device and waste heat lithium bromide refrigeration device, PEM hydrogen production device can prepare hydrogen and store in hydrogen energy storage device, hydrogen energy storage device further exports hydrogen to hydrogen combustion steam turbine unit, hydrogen combustion steam turbine unit generates electricity and provides electric energy to island independent power grid, and waste heat gas generated in hydrogen combustion steam turbine unit generation operation is partly transmitted to waste heat seawater desalination device, realize seawater desalination operation, and generated pure water is transmitted to PEM hydrogen production device, become the raw material of preparation hydrogen, remaining waste heat gas is transmitted to waste heat lithium bromide refrigeration device, waste heat gas is discharged to external environment after cooling, to realize the clean energy circulation operation of power generation system by this means.In the embodiment, by integrated design, make that power generation system structure compact, power supply function stable, can be adapted to island special harsh environment simultaneously, and be equipped with waste heat recovery function, can effectively reduce the waste of energy, reduce pollution to island environment. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model provides a kind of clean energy power generation system applied to island environment's structure schematic diagram.

[0023] Reference signs are explained: 1: hydrogen combustion steam turbine unit;2: PEM hydrogen production device;3: hydrogen energy storage device;4: waste heat seawater desalination device;5: waste heat lithium bromide refrigeration device;6: island independent power grid;7: photovoltaic power generation device;8: three-way flow valve body;9: first gas pipeline;10: second gas pipeline;11: third gas pipeline;12: fourth gas pipeline;13: first water body pipeline;14: wind power generation device. DETAILED DESCRIPTION

[0024] The utility model provides a kind of clean energy power generation system applied to island environment is further detailed below in conjunction with the drawings and specific embodiment.It is more clear that the advantages and features of the utility model will be according to the following description and claims.

[0025] Reference Figure 1 The embodiment provides a kind of clean energy power generation system applied to island environment, for realizing in island special environment, constructs a kind of stable, clean, has strong adaptability to environment power generation system, provides electric energy for island independent power grid 6, main structure includes hydrogen combustion steam turbine unit 1, PEM hydrogen production device 2, hydrogen energy storage device 3 and main control unit.

[0026] The hydrogen-fueled turbine unit 1 is a gas turbine power generation device using hydrogen as fuel, which can utilize the heat energy generated by hydrogen combustion to drive the turbine and then drive the generator to generate electricity. In this embodiment, the power output end of the hydrogen-fueled turbine unit 1 is connected with the island independent power grid 6, and the hydrogen input end of the hydrogen-fueled turbine unit 1 is connected with the hydrogen output end of the hydrogen energy storage device 3 through the first gas pipeline 9. The hydrogen energy storage device 3 can transmit the stored hydrogen to the hydrogen input end of the hydrogen-fueled turbine unit 1 through the first gas pipeline 9, and then the hydrogen-fueled turbine unit 1 performs power generation work to provide 100kw / 400V / 50Hz power to the island independent power grid 6.

[0027] The PEM hydrogen production device 2 is a device for water electrolysis to produce hydrogen by using proton exchange membrane (PEM) technology. In this embodiment, the hydrogen output end of the PEM hydrogen production device 2 is connected with the hydrogen input end of the hydrogen energy storage device 3 through the second gas pipeline 10. The PEM hydrogen production device 2 can use the water around the island to prepare hydrogen resources and transmit the hydrogen to the hydrogen energy storage device 3 through the second gas pipeline 10 for storage.

[0028] The hydrogen energy storage device 3 includes a plurality of high-pressure hydrogen storage tanks for storing hydrogen. The high-pressure hydrogen storage tanks are arranged in an area with high terrain and good ventilation in the island environment to reduce the adverse effects of seawater erosion and humid air on the hydrogen energy storage device 3 and improve the storage safety of hydrogen in the high-pressure hydrogen storage tanks.

[0029] The main control unit is electrically connected with the hydrogen-fueled turbine unit 1, the PEM hydrogen production device 2 and the hydrogen energy storage device 3. The main control unit can be used to control the power supply efficiency of the power generation system according to the power demand of the island independent power grid 6 and the natural environmental conditions of the island, such as controlling the hydrogen generation rate of the PEM hydrogen production device 2, controlling the hydrogen supply rate of the hydrogen energy storage device 3 to the hydrogen-fueled turbine unit 1, and controlling the power generation efficiency of the hydrogen-fueled turbine unit 1.

[0030] In summary, the embodiment provides a clean energy power generation system applied to an island environment. The PEM hydrogen production device 2 generates hydrogen from the water around the island, a part of the hydrogen is supplied to the hydrogen-fueled turbine unit 1 after passing through the hydrogen energy storage device 3, the hydrogen-fueled turbine unit 1 performs power generation work to provide power to the island independent power grid 6, and the excess hydrogen produced by the PEM hydrogen production device 2 is stored in the hydrogen energy storage device 3 for subsequent use of the hydrogen-fueled turbine unit 1. Through this embodiment, the PEM hydrogen production device 2 can use the water resources existing in the island to realize hydrogen production, reducing the dependence on external energy supply. The hydrogen energy storage device 3 is used for hydrogen storage, which ensures that the hydrogen-fueled turbine unit 1 can continuously perform power generation work, thereby ensuring the stable power output of the island independent power grid 6. In addition, the main product of hydrogen combustion in the power generation work of the hydrogen-fueled turbine unit 1 is water, which can effectively reduce the secondary pollution of the power generation system to the island environment.

[0031] In the following, the specific structure and functions of the clean energy power generation system applied to island environment provided by the present embodiment will be further described in detail:

[0032] Preferably, in the present embodiment, the power generation system is also provided with a waste heat seawater desalination device 4, which refers to a device for desalination of seawater by using external input heat source, such as using multi-effect distillation (MED) technology to realize the seawater desalination function. In the present embodiment, the water input end of the waste heat seawater desalination device 4 is connected to the seawater around the island, which is used to extract the seawater around the island as the water desalination raw material of the waste heat seawater desalination device 4, the water output end of the waste heat seawater desalination device 4 is connected to the water input end of the PEM hydrogen production device 2 through the first water pipe 13, and the heat source input end of the waste heat seawater desalination device 4 is connected to the waste heat output end of the hydrogen combustion turbine unit 1 through the third gas pipe 11. When the hydrogen combustion turbine unit 1 performs power generation operation, high-temperature gas will be generated, which is transmitted to the waste heat seawater desalination device 4 through the third gas pipe 11. The waste heat seawater desalination device 4 uses the waste heat output by the hydrogen combustion turbine unit 1 to desalinate seawater into pure water and supply it to the PEM hydrogen production device 2.

[0033] The desalinated pure water has less internal impurities and lower corrosiveness, which can ensure the effective operation and long service life of the PEM hydrogen production device 2, and improve the efficiency and purity of hydrogen production.

[0034] Preferably, in the present embodiment, the power generation system is also provided with a waste heat lithium bromide refrigeration device 5, which refers to a device for refrigeration of external input heat source by using lithium bromide absorption refrigeration technology. In the present embodiment, the heat source input end of the waste heat lithium bromide refrigeration device 5 is connected to the waste heat output end of the hydrogen combustion turbine unit 1 through the fourth gas pipe 12, and the gas output end of the waste heat lithium bromide refrigeration device 5 is connected to the external environment. The waste heat generated by the hydrogen combustion turbine unit 1 during power generation operation is partly output to the waste heat seawater desalination device 4, and the excess waste heat gas is output to the waste heat lithium bromide refrigeration device 5. The waste heat lithium bromide refrigeration device 5 discharges the high-temperature waste heat gas to the external environment after cooling, which reduces the emission of greenhouse gases and makes the power generation system meet the environmental protection requirements.

[0035] Preferably, in the present embodiment, the hydrogen combustion turbine unit 1 is provided with a three-way flow valve body 8, the input end of the three-way flow valve body 8 is connected to the waste heat output end of the hydrogen combustion turbine unit 1, the first output end of the three-way flow valve body 8 is connected to the heat source input end of the waste heat seawater desalination device 4, the second output end of the three-way flow valve body 8 is connected to the heat source input end of the waste heat lithium bromide refrigeration device 5, and the main control unit is electrically connected to the three-way flow valve body 8. The main control unit can automatically adjust the opening and closing ratio of the first output end and the second output end of the three-way flow valve body 8 based on the hydrogen storage amount of the hydrogen energy storage device 3.

[0036] Specifically, when the total amount of hydrogen stored in the hydrogen energy storage device 3 is low, the opening ratio of the first output end of the three-way flow valve body 8 is adjusted to increase, thereby increasing the efficiency of the pure water generated by the waste heat seawater desalination device 4, i.e., improving the efficiency of the hydrogen prepared by the subsequent PEM hydrogen production device 2. When the total amount of hydrogen stored in the hydrogen energy storage device 3 is high, the opening ratio of the second output end of the three-way flow valve body 8 is adjusted to increase, so that more high-temperature waste heat gas is discharged to the external environment through the waste heat lithium bromide refrigeration device 5, reducing the efficiency of the pure water generated by the waste heat seawater desalination device 4, i.e., reducing the efficiency of the hydrogen prepared by the subsequent PEM hydrogen production device 2, thereby achieving dynamic adjustment of the total amount of hydrogen stored in the hydrogen energy storage device 3.

[0037] Preferably, in the present embodiment, the hydrogen input end of the hydrogen combustion turbine unit 1 is provided with a hydrogen purification device for removing impurities in the hydrogen output by the hydrogen energy storage device 3, ensuring that the hydrogen entering the hydrogen combustion turbine unit 1 has sufficient purity, thereby improving the hydrogen combustion and power generation efficiency, and avoiding damage to the hydrogen combustion turbine unit 1. The hydrogen purification device includes using adsorption method, membrane separation technology or catalytic reaction to realize the purification function of hydrogen.

[0038] Preferably, in the present embodiment, the hydrogen input end of the hydrogen combustion turbine unit 1 is also provided with a hydrogen flow control device, and the main control unit is electrically connected with the hydrogen flow control device. The main control unit can control the flow size of the hydrogen flow control device, i.e., the hydrogen flow control device is used to adjust the hydrogen supply amount of the hydrogen energy storage device 3 to the hydrogen combustion turbine unit 1 according to the electricity demand of the island independent power grid 6. When the electricity demand of the island independent power grid 6 is large, the hydrogen flow control device increases the hydrogen flow, thereby improving the power generation efficiency of the hydrogen combustion turbine unit 1. When the electricity demand of the island independent power grid 6 is small, the hydrogen flow control device reduces the hydrogen flow, thereby reducing the power generation efficiency of the hydrogen combustion turbine unit 1, and avoiding power loss.

[0039] Preferably, in the present embodiment, a gas pressure sensor is arranged in each of the plurality of high-pressure hydrogen storage tanks, and each of the plurality of high-pressure hydrogen storage tanks is provided with an independent hydrogen input end and a hydrogen output end. The hydrogen input ends of the plurality of high-pressure hydrogen storage tanks are connected in series through gas pipelines to the second gas pipeline 10, and the hydrogen output ends of the plurality of high-pressure hydrogen storage tanks are connected in series through gas pipelines to the first gas pipeline 9. The hydrogen input end and the hydrogen output end of each of the plurality of high-pressure hydrogen storage tanks are respectively provided with an independent gas regulating valve body. The main control unit is electrically connected with each of the gas pressure sensors and the gas regulating valve bodies. The gas regulating valve bodies can be used to adjust the opening and closing flow of the hydrogen input end and the hydrogen output end of different high-pressure hydrogen storage tanks according to the hydrogen storage capacity in different high-pressure hydrogen storage tanks.

[0040] Specifically, when the gas pressure sensor inside a certain high-pressure hydrogen storage tank shows that the current gas pressure is too high, it proves that the hydrogen storage amount inside the high-pressure hydrogen storage tank is relatively more than that of other high-pressure hydrogen storage tanks. At this time, the opening flux of the hydrogen input end of the high-pressure hydrogen storage tank can be reduced by the gas regulating valve body to slow down the input of hydrogen into the high-pressure hydrogen storage tank. At the same time, the opening flux of the hydrogen output end of the high-pressure hydrogen storage tank can be increased by the gas regulating valve body to accelerate the output of hydrogen from the high-pressure hydrogen storage tank to the hydrogen combustion turbine unit 1, so as to reduce the hydrogen storage amount inside the high-pressure hydrogen storage tank, thereby ensuring that the gas pressures inside the high-pressure hydrogen storage tanks remain consistent and achieve the pressure balance function.

[0041] Preferably, in the present embodiment, the high-pressure hydrogen storage tank is coated with an aerogel or polyurethane foam coating on the outside, which is used to improve the heat insulation performance of the high-pressure hydrogen storage tank, effectively reduce the influence of external environmental temperature changes on the internal temperature of the high-pressure hydrogen storage tank, and keep the hydrogen storage conditions more stable.

[0042] And in an embodiment, the high-pressure hydrogen storage tank is also provided with a temperature sensor, and the main control unit is electrically connected with the temperature sensor. When the temperature inside the high-pressure hydrogen storage tank is too high, the main control unit issues an alarm and reduces the hydrogen storage amount inside the high-pressure hydrogen storage tank by controlling the operating efficiency of the hydrogen combustion turbine unit 1 and the PEM hydrogen production device 2.

[0043] At the same time, the high-pressure hydrogen storage tank is also provided with a shell made of stainless steel or titanium alloy material on the outside, or is coated with an epoxy resin coating on the outside, which is used to enhance the corrosion resistance of the high-pressure hydrogen storage tank, so that the high-pressure hydrogen storage tank can be applied to island high-humidity and high-salinity environments.

[0044] Preferably, in the present embodiment, the power generation system is also provided with a photovoltaic power generation device 7, and the power output end of the photovoltaic power generation device 7 is connected with the PEM hydrogen production device 2. The photovoltaic power generation device 7 can generate electric energy by using abundant solar energy in the island environment, and then supply independent electric energy to the PEM hydrogen production device 2.

[0045] And the power generation system is also provided with a wind power generation device 14, and the power output end of the wind power generation device 14 is connected with the PEM hydrogen production device 2. The wind power generation device 14 can generate electric energy by using abundant wind energy in the island environment, and then supply independent electric energy to the PEM hydrogen production device 2. Through the cooperation of the photovoltaic power generation device 7 and the wind power generation device 14, the renewable energy in the island environment can be fully utilized, and the self-sufficiency rate of electric energy can be improved.

[0046] Preferably, in the present embodiment, the power generation system is also provided with a weather monitoring assembly, and the main control unit is electrically connected with the weather monitoring assembly. The weather monitoring assembly can be used to monitor the weather data of the island environment where the power generation system is located, and the main control unit can control the electric energy supply efficiency of the hydrogen combustion turbine unit 1 based on the island weather data.

[0047] Specifically, when the weather monitoring component detects that the island is facing typhoon, heavy rain and other extreme environments, the main control unit can control the power generation system to enter an emergency mode, reduce the power generation efficiency of the hydrogen combustion turbine unit 1 to a safe and stable operation range, and preferentially ensure the power supply of the island basic power facilities. At the same time, the PEM hydrogen production device 2, the waste heat seawater desalination device 4, the waste heat lithium bromide refrigeration device 5 and part of the unnecessary high-pressure hydrogen storage tank can be selectively closed to prevent the equipment from being damaged when each device operates in extreme environments.

[0048] In summary, the embodiment provides a clean energy power generation system applied to island environment, which is provided with a hydrogen combustion turbine unit 1, a PEM hydrogen production device 2, a hydrogen storage device 3, a waste heat seawater desalination device 4 and a waste heat lithium bromide refrigeration device 5. The PEM hydrogen production device 2 can produce hydrogen and store it in the hydrogen storage device 3. The hydrogen storage device 3 further outputs hydrogen to the hydrogen combustion turbine unit 1. The hydrogen combustion turbine unit 1 generates power to provide power to the island independent power grid 6. Part of the waste heat gas generated by the power generation operation of the hydrogen combustion turbine unit 1 is transmitted to the waste heat seawater desalination device 4 to realize seawater desalination operation, and the generated pure water is transmitted to the PEM hydrogen production device 2 to become raw material for producing hydrogen. The remaining waste heat gas is transmitted to the waste heat lithium bromide refrigeration device 5, and the waste heat gas is cooled and discharged to the external environment, thereby realizing the clean energy cycle operation of the power generation system. In the embodiment, through integrated design, the power generation system has compact structure and stable power supply function, can adapt to the special harsh environment of the island, and is provided with waste heat recovery function, which can effectively reduce energy waste and reduce pollution to the island environment.

[0049] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments. Even if various changes are made to the utility model, if the changes belong to the scope of the utility model claims and equivalent technologies, they still fall within the protection scope of the utility model.

Claims

1. A clean energy power generation system applied to island environment, characterized in that, The application relates to a hydrogen-fueled turbine unit, a PEM hydrogen production device, a hydrogen energy storage device and a master control unit. The power output end of the hydrogen-fueled turbine unit is connected with an island independent power grid, the hydrogen input end of the hydrogen-fueled turbine unit is connected with the hydrogen output end of the hydrogen energy storage device through a first gas pipeline, and the hydrogen-fueled turbine unit is configured to perform power generation work based on the hydrogen supplied by the hydrogen energy storage device to provide power to the island independent power grid. The hydrogen output end of the PEM hydrogen production device is connected with the hydrogen input end of the hydrogen energy storage device through a second gas pipeline, and the PEM hydrogen production device is configured to prepare hydrogen resources by using water around the island and supply the hydrogen to the hydrogen energy storage device. The hydrogen energy storage device comprises a plurality of high-pressure hydrogen storage tanks which are arranged in an area with high terrain and good ventilation in the island environment. The master control unit is electrically connected with the hydrogen-fueled turbine unit, the PEM hydrogen production device and the hydrogen energy storage device respectively, and is used for controlling the power supply efficiency of the power generation system according to the power demand of the island independent power grid and the natural environmental conditions of the island. The waste heat seawater desalination device is further provided with a water body input end for extracting seawater around the island, a water body output end connected with the water body input end of the PEM hydrogen production device through a first water body pipeline for supplying pure water raw materials required by the hydrogen production work to the PEM hydrogen production device, and a heat source input end connected with the waste heat output end of the hydrogen-fueled turbine unit through a third gas pipeline, and the waste heat seawater desalination device is configured to utilize the waste heat generated by the power generation work of the hydrogen-fueled turbine unit to desalinate seawater and supply pure water to the PEM hydrogen production device.

2. The clean energy power generation system for island environment of claim 1, wherein, The waste heat lithium bromide refrigeration device is further provided with a heat source input end connected with the waste heat output end of the hydrogen-fueled turbine unit through a fourth gas pipeline, a gas output end in communication with the external environment, and the waste heat lithium bromide refrigeration device is configured to discharge the excess waste heat gas generated by the power generation work of the hydrogen-fueled turbine unit after cooling.

3. The clean energy power generation system for island environments of claim 2, wherein, The hydrogen-fueled turbine unit is provided with a three-way flow valve body, the input end of the three-way flow valve body is in communication with the waste heat output end of the hydrogen-fueled turbine unit, the first output end of the three-way flow valve body is in communication with the heat source input end of the waste heat seawater desalination device, the second output end of the three-way flow valve body is in communication with the heat source input end of the waste heat lithium bromide refrigeration device, the master control unit is electrically connected with the three-way flow valve body, and the three-way flow valve body is configured to adjust the opening and closing ratio of the first output end and the second output end of the three-way flow valve body based on the hydrogen storage amount of the hydrogen energy storage device.

4. The clean energy power generation system for island environments of claim 3, wherein, The hydrogen input end of the hydrogen-fueled turbine unit is provided with a hydrogen purification device for removing impurities in the hydrogen output by the hydrogen energy storage device.

5. The clean energy power generation system for island environments of claim 1, wherein, ​ 6. The clean energy power generation system for island environments of claim 1, wherein, The hydrogen input end of the hydrogen combustion turbine unit is also provided with a hydrogen flow regulating device, the main control unit is electrically connected with the hydrogen flow regulating device, and the hydrogen flow regulating device is used for adjusting the hydrogen supply amount of the hydrogen combustion turbine unit according to the electricity demand of the island independent power grid.

7. The clean energy power generation system for island environments of claim 1, wherein, Several of the high-pressure hydrogen storage tanks are respectively provided with gas pressure sensors, and the hydrogen input end and the hydrogen output end of several of the high-pressure hydrogen storage tanks are respectively provided with independent gas regulating valves, the main control unit is respectively electrically connected with the gas pressure sensor and the gas regulating valve, and the gas regulating valve is used for adjusting the opening and closing flow of the hydrogen input end and the hydrogen output end of different high-pressure hydrogen storage tanks according to the hydrogen storage amount difference of different high-pressure hydrogen storage tanks.

8. The clean energy power generation system for island environments of claim 1, wherein, The high-pressure hydrogen storage tank is coated with an aerogel or polyurethane foam coating outside; And, the high-pressure hydrogen storage tank is also provided with a stainless steel, titanium alloy shell, or is coated with an epoxy resin coating.

9. The clean energy power generation system for island environments of claim 1, wherein, A photovoltaic power generation device is arranged, the power output end of the photovoltaic power generation device is connected with the PEM hydrogen production device, and the photovoltaic power generation device is configured to provide independent electric energy for the PEM hydrogen production device by using solar energy of the island environment. A wind power generation device is arranged, the power output end of the wind power generation device is connected with the PEM hydrogen production device, and the wind power generation device is configured to provide independent electric energy for the PEM hydrogen production device by using wind energy of the island environment.

10. The clean energy power generation system for island environments of claim 1, wherein, A weather monitoring assembly is also arranged, the main control unit is electrically connected with the weather monitoring assembly, and the weather monitoring assembly is configured to monitor the weather data of the island environment where the power generation system is located, and assist the main control unit in regulating the electric energy supply efficiency of the hydrogen combustion turbine unit.

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