Hydrogen production-hydrogen storage-power generation integrated system and control method thereof

Abstract

The invention discloses a hydrogen production-hydrogen storage-power generation integrated system and a control method thereof. The system comprises a renewable energy power generation device, an electrolytic hydrogen production device, a hydrogen and oxygen storage device, a gas turbine power generation device and a waste heat recovery device. Wherein the renewable energy power generation device is used for generating electric energy through wind and light energy conversion, the electric energy is preferentially accessed to a power grid, and when the generating capacity meets the power grid requirement, excess electric energy is absorbed through the electrolytic hydrogen production device; the hydrogen and oxygen storage device is used for safely storing hydrogen and oxygen generated by the electrolytic hydrogen production device in a solid hydrogen storage mode and a high-pressure oxygen storage mode respectively; and the waste heat recovery device is used for driving hydrogen storage dehydrogenation and regional heat supply by utilizing exhaust waste heat of the gas turbine power generation device in a grading manner, so that gradient utilization of energy is realized. Renewable energy power generation, electrolytic hydrogen production, hydrogen / oxygen storage, gas turbine power generation and a waste heat recovery system are organically integrated, and efficient utilization of resources is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of renewable energy power generation and gas turbine exhaust utilization, in particular to a hydrogen production-hydrogen storage-power generation integrated system and a control method thereof. BACKGROUND

[0002] Hydrogen gas turbine power generation is a key technical path for zero-carbon power systems. The current mainstream scheme adopts electrolytic cell hydrogen production-high pressure hydrogen storage-natural gas hydrogen doping combustion mode, such as Siemens SGT-600 gas turbine (hydrogen doping ratio 30%). Although this scheme realizes green electricity conversion, it has significant limitations: the electrolysis byproduct oxygen is difficult to utilize directly due to purity fluctuations (95-99.5%) and tempering risks, and is mostly vented; hydrogen storage relies on 35MPa high pressure compression, with energy consumption of 1.2kWh / kg-H2; the exhaust waste heat of the micro gas turbine is only preheated by the regenerator, and the thermal efficiency is low, and the waste heat is not integrated with the hydrogen storage link.

[0003] The existing hydrogen energy power generation system has double defects of oxygen resource utilization and heat energy recovery: on the one hand, the high-purity oxygen (95-99.5%) byproduct of electrolysis of water is mostly directly discharged, especially in the application scenario of large-scale hydrogen production, the direct discharge of large-scale pure oxygen causes great waste; on the other hand, the solid-state hydrogen storage material needs 180-250℃ external heat source for dehydrogenation, and the traditional electric heating method has high energy consumption, while the exhaust waste heat (270℃) of the micro gas turbine cannot be fully and effectively utilized, and both have the potential to realize efficient utilization of waste heat through system heat integration.

[0004] Therefore, an integrated hydrogen production-hydrogen storage-power generation system and a control method thereof are proposed to solve the problems in the prior art, which is a problem that needs to be solved by those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide an integrated hydrogen production-hydrogen storage-power generation system and a control method thereof, which realizes efficient utilization of resources by organically integrating renewable energy power generation, electrolytic hydrogen production, hydrogen / oxygen storage, gas turbine power generation, and waste heat recovery system.

[0006] To achieve the above-mentioned purpose, the present application provides the following solutions:

[0007] An integrated hydrogen production-hydrogen storage-power generation system, comprising renewable energy power generation devices, electrolytic hydrogen production devices, hydrogen and oxygen storage devices, gas turbine power generation devices connected in sequence, and waste heat recovery devices connected with the gas turbine power generation devices; wherein:

[0008] The renewable energy power generation device is used to generate electric energy through wind and solar energy conversion, and the electric energy is preferentially connected to the power grid, and when the power generation capacity meets the demand of the power grid, the excess electric energy is consumed by the electrolytic hydrogen production device;

[0009] An electrolytic hydrogen production device for producing hydrogen and oxygen by electrolyzing water with excess electricity;

[0010] A hydrogen and oxygen storage device for safely storing hydrogen and oxygen produced by the electrolytic hydrogen production device through solid-state hydrogen storage and high-pressure oxygen storage respectively, and meeting the needs of fast peak shaving response of gas turbines and volatility absorption of renewable energy through flexible gas allocation.

[0011] A gas turbine power generation device for obtaining hydrogen and oxygen from the hydrogen and oxygen storage device, and realizing peak shaving power generation through hydrogen-doped combustion and oxygen-rich combustion.

[0012] A waste heat recovery device for driving hydrogen storage and dehydrogenation and regional heating through the exhaust waste heat of the gas turbine power generation device in stages, realizing energy cascade utilization.

[0013] Preferably, the renewable energy power generation device includes a photovoltaic power generation unit and a wind power generation unit; the photovoltaic power generation unit and the wind power generation unit are connected to the power grid through an AC bus respectively, and the electricity generated by the photovoltaic power generation unit and the wind power generation unit is first input into the power grid through the AC bus, and after meeting the needs of the power grid, the excess electricity is input into the electrolytic hydrogen production device through the transformer-AC bus for producing hydrogen and oxygen by electrolyzing water.

[0014] Preferably, the photovoltaic power generation unit includes a photovoltaic generator set, a photovoltaic transformer and a DC / AC converter connected in sequence, and the wind power generation unit includes a wind power generator set and a wind power transformer connected in sequence.

[0015] Preferably, the electrolytic hydrogen production device includes an isolation switch, a transformer-I, an AC / DC converter and an electrolytic cell connected in sequence, and the electrolytic cell is connected to the hydrogen and oxygen storage device.

[0016] Preferably, the hydrogen and oxygen storage device includes a hydrogen storage device and an oxygen storage device; a first pipeline output from the electrolytic cell is connected to the hydrogen storage device, the hydrogen storage device includes a hydrogen purification device, a gas compressor-I, a cooler, a solid-state hydrogen storage device and a hydrogen-doped premixer connected in sequence; an intelligent shunt valve is arranged between the hydrogen purification device and the gas compressor-I, and the intelligent shunt valve is also connected to the hydrogen-doped premixer; a hydrogen flow control valve and a regulating valve-I are arranged between the solid-state hydrogen storage device and the hydrogen-doped premixer.

[0017] Preferably, a second pipeline output from the electrolytic cell is connected to the oxygen storage device, and the oxygen storage device includes an oxygen purification device, a gas compressor-II, a high-pressure oxygen storage tank and a gas mixer connected in sequence; a regulating valve-II is arranged between the high-pressure oxygen storage tank and the gas mixer; an oxygen concentration sensor is arranged in the pipeline at the outlet of the gas mixer, and real-time feedback signals are fed to the regulating valve-II to dynamically control the oxygen flow and control the oxygen concentration within the safe range of the gas turbine.

[0018] Preferably, the gas turbine power generation device comprises a compressor, a combustor, a turbine, a generator, a transformer two arranged in sequence, the hydrogen storage device is connected with the combustor through a hydrogen-doped premixing device, the oxygen storage device is connected with the compressor through a gas mixer, the compressed air is sent into the gas mixer and mixed with the high-pressure oxygen passing through the second regulating valve, and the electric energy generated by the gas turbine power generation device is input into the power grid through the transformer two AC bus.

[0019] Preferably, the waste heat recovery device comprises a counter-flow regenerator, a fin-type counter-flow heat exchanger and a heat network heater connected in sequence, the counter-flow regenerator is connected with the gas turbine power generation device, the fin-type counter-flow heat exchanger is arranged in the solid-state hydrogen storage device, and the gas mixer is connected with the counter-flow regenerator, wherein the mixed gas in the gas mixer is sent into the combustor for combustion through the counter-flow regenerator.

[0020] The exhaust gas of the counter-flow regenerator is utilized in two stages, the high-temperature section is sent into the fin-type counter-flow heat exchanger to trigger the solid-state hydrogen storage material in the solid-state hydrogen storage device to release hydrogen, and the low-temperature section is used to send into the heat network heater to heat the heat network return water for heating.

[0021] On the other hand, the application also provides a control method based on the above-mentioned integrated system of hydrogen production-hydrogen storage-power generation, which comprises the following steps:

[0022] Case one: the wind and light resources are sufficient, and the power generation of the renewable energy power generation device still has surplus after meeting the power grid load: in this case, the hydrogen-doped gas turbine is stopped, at this time, the valve switch of the intelligent shunt valve leading to the hydrogen storage device is closed, the surplus power generated by the wind and light is sent into the electrolytic cell through the isolation switch, the obtained hydrogen and oxygen are collected respectively, the hydrogen is sent into the solid-state hydrogen storage device for storage through the hydrogen purification device, the gas compressor one and the cooler, and the oxygen is sent into the high-pressure oxygen storage tank for storage through the oxygen purification device and the gas compressor two;

[0023] Case two: when the wind and light resources are insufficient, that is, the power generated by the wind and light cannot meet the demand of the power grid load: in this case, the valve switch of the intelligent shunt valve leading to the hydrogen storage device and the natural gas flow control valve are opened to mix hydrogen and natural gas; according to the specific power grid load demand, the amount of fuel added to the gas turbine is increased, and the power of the electrolytic cell is gradually reduced until it is turned off, and the isolation switch is disconnected; and the hydrogen flow control valve is opened, the hydrogen stored in the solid-state hydrogen storage device is used, the hydrogen pressure is reduced to the working pressure of the combustor through the regulating valve one, then the hydrogen is sent into the hydrogen-doped premixing device to be premixed with the natural gas, and then the hydrogen and natural gas are sent into the combustor for combustion, and the compressed air after the compression of the compressor is sent into the gas mixer and mixed with the high-pressure oxygen passing through the second regulating valve and then sent into the combustor for combustion.

[0024] Case three: when the grid load demand suddenly decreases during peak regulation: in this case, first reduce the valve opening degree of the intelligent distribution valve leading to the hydrogen storage device and the valve opening degree of the natural gas flow control valve, reduce the amount of fuel entering the gas turbine, and reduce the power generation of the gas turbine; At the same time, gradually increase the hydrogen production power of the electrolytic cell, and part of the power generated by the gas turbine is also used for hydrogen production; The hydrogen and oxygen obtained by preparation are respectively sent into the hydrogen storage device and the oxygen storage device for storage, and when the system meets the grid peak regulation demand, the gas turbine is stopped.

[0025] According to the specific embodiments provided by the application, the following technical effects are disclosed:

[0026] (1) The application realizes efficient use of resources by organically integrating renewable energy power generation, electrolytic hydrogen production, hydrogen / oxygen storage, gas turbine power generation and waste heat recovery system, uses more than 95% pure oxygen byproduct of electrolysis of water for oxygen-enriched combustion of the gas turbine, replaces traditional air compression, reduces the energy consumption of the compressor, and simultaneously suppresses the generation of NOx through oxygen concentration closed-loop control;

[0027] (2) The control method realizes energy gradient optimization, uses the 270℃ exhaust waste heat of the gas turbine to directly drive the dehydrogenation of solid-state hydrogen storage materials (MOFs), replaces the electric heating mode, reduces the energy consumption of the hydrogen storage link, and improves the comprehensive efficiency of the system; Dynamic cooperative control is realized, the intelligent distribution valve and the oxygen concentration sensor realize closed-loop adjustment of wind-solar power generation-hydrogen production-hydrogen storage-power generation, the gas turbine quickly responds in the peak regulation scene, and at the same time, the loss of low-load operation efficiency is avoided (switches to the electrolytic hydrogen production mode when the load suddenly drops). BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0029] Figure 1 A hydrogen production-hydrogen storage-power generation integrated system structure diagram is provided for the application;

[0030] Among them, 1-photovoltaic generator set, 2-photovoltaic transformer, 3-wind turbine generator set, 4-wind power transformer, 5-DC / AC converter, 6-disconnecting switch, 7-transformer one, 8-AC / DC converter, 9-electrolyzer, 10-hydrogen purification device, 11-intelligent diversion valve, 12-gas compressor, 13-cooler, 14-solid hydrogen storage device, 15-hydrogen flow control valve, 16-regulating valve one, 17-hydrogen blending premixer, 18-natural gas flow control valve, 19-oxygen purification device, 20-gas compressor, 21-high pressure oxygen storage tank, 22-regulating valve two, 23-gas mixer, 24-compressor, 25-counterflow regenerator, 26-combustion chamber, 27-turbine, 28-generator, 29-transformer two, 30-finned counterflow heat exchanger, 31-circuit breaker, 32-heat network heater. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] like Figure 1 As shown, the present invention provides an integrated system for hydrogen production, storage, and power generation, comprising, in sequence, a renewable energy power generation unit, an electrolysis hydrogen production unit, a hydrogen and oxygen storage unit, a gas turbine power generation unit, and a waste heat recovery unit connected to the gas turbine power generation unit; wherein:

[0035] Renewable energy power generation equipment is used to generate electricity through wind and solar energy conversion. The electricity is preferentially connected to the grid. When the power generation meets the grid demand, the excess electricity is consumed through an electrolysis hydrogen production unit.

[0036] An electrolytic hydrogen production device is used to produce hydrogen and oxygen by electrolyzing water using excess electrical energy;

[0037] Hydrogen and oxygen storage devices are used to safely store hydrogen and oxygen produced by electrolytic hydrogen production devices through solid-state hydrogen storage and high-pressure oxygen storage, respectively, and to meet the needs of rapid peak-shaving response of gas turbines and the absorption of renewable energy fluctuations through flexible gas allocation.

[0038] Gas turbine power generation device, for obtaining hydrogen and oxygen from hydrogen and oxygen storage device, peak shaving power generation is realized by hydrogen doping combustion and oxygen enrichment combustion;

[0039] Waste heat recovery device, for driving hydrogen storage and dehydrogenation and regional heating by using exhaust waste heat of gas turbine power generation device in stages, realizing energy cascade utilization.

[0040] Specifically, the renewable energy power generation device includes a photovoltaic power generation unit and a wind power generation unit; the photovoltaic power generation unit and the wind power generation unit are respectively connected to an AC bus of a power grid, and a circuit breaker 31 is arranged on the AC bus connected to the power grid; the electric energy generated by the photovoltaic power generation unit and the wind power generation unit is first input to the power grid through the AC bus, and after meeting the demand of the power grid, the excess electric energy is input to an electrolytic hydrogen production device through a transformer 7 AC bus, for generating hydrogen and oxygen by electrolyzing water;

[0041] The photovoltaic power generation unit includes a photovoltaic generator set 1, a photovoltaic transformer 2 and a DC / AC converter 5 connected in sequence, and the wind power generation unit includes a wind power generator set 3 and a wind power transformer 4 connected in sequence. The DC / AC converter 5 and the wind power transformer 4 are respectively connected to the AC bus.

[0042] The electrolytic hydrogen production device includes an isolation switch 6, a transformer 7, an AC / DC converter 8 and an electrolytic cell 9 connected in sequence, and the electrolytic cell 9 is connected to a hydrogen and oxygen storage device.

[0043] Furthermore, the hydrogen and oxygen storage device includes a hydrogen storage device and an oxygen storage device; a first pipeline output from the electrolytic cell 9 is connected to the hydrogen storage device, the hydrogen storage device includes a hydrogen purification device 10, a gas compressor 1, a cooler 13, a solid hydrogen storage device 14 and a hydrogen-doped premixer 17 connected in sequence, an intelligent shunt valve 11 is arranged between the hydrogen purification device 10 and the gas compressor 1, and the intelligent shunt valve 11 is also connected to the hydrogen-doped premixer 17; a fin-type counterflow heat exchanger 30 is arranged in the solid hydrogen storage device 14; a hydrogen flow control valve 15 and a regulating valve 1 6 are arranged between the solid hydrogen storage device 14 and the hydrogen-doped premixer 17; a natural gas flow control valve 18 is arranged on a pipeline inputting natural gas to the hydrogen-doped premixer 17.

[0044] Further, a second pipeline output from the electrolytic cell 9 is connected to the oxygen storage device, and the oxygen storage device includes an oxygen purification device 19, a gas compressor 2, a high-pressure oxygen storage tank 21 and a gas mixer 23 connected in sequence; a regulating valve 2 2 is arranged between the high-pressure oxygen storage tank 21 and the gas mixer 23; an oxygen concentration sensor is arranged in a pipeline at an outlet of the gas mixer 23, and real-time feedback signals are fed to the regulating valve 2 2 to dynamically control the oxygen flow and control the oxygen concentration within a safe range of the gas turbine.

[0045] Further, the gas turbine power generation device comprises a compressor 24, a combustion chamber 26, a turbine 27, a generator 28, and a transformer 29 connected in sequence, the hydrogen storage device is connected with the combustion chamber 26 through a hydrogen-doped premixer 17, the oxygen storage device is connected with the compressor 24 through a gas mixer 23, the compressed air is sent into the gas mixer 23 by the compressor 24 and mixed with high-pressure oxygen passing through a second regulating valve 22, and the electric energy generated by the gas turbine power generation device is input into the power grid through the transformer 29.

[0046] Further, the waste heat recovery device comprises a counterflow regenerator 25, a finned counterflow heat exchanger 30, and a heat network heater 32 connected in sequence, the counterflow regenerator 25 is connected with the gas turbine power generation device, the finned counterflow heat exchanger 30 is arranged in the solid-state hydrogen storage device 14, and the gas mixer 23 is connected with the counterflow regenerator 25, and the mixed gas in the gas mixer 23 is burned in the combustion chamber 26 after passing through the counterflow regenerator 25.

[0047] The exhaust gas of the counterflow regenerator 25 is utilized in two stages, the high-temperature section is connected with the finned counterflow heat exchanger 30 to trigger the dehydrogenation of the solid-state hydrogen storage material in the solid-state hydrogen storage device, and the low-temperature section is connected with the heat network heater 32 to heat the heat network return water.

[0048] Specifically, the system is composed of four modules of electrolytic hydrogen production, hydrogen / oxygen storage, power generation, and waste heat recovery. Renewable energy power generation is preferentially connected to the power grid, and the excess electricity is used to produce hydrogen by electrolyzing water. The obtained hydrogen and oxygen are collected and stored in the solid-state hydrogen storage device 14 and the high-pressure oxygen storage tank 12 respectively, and the finned counterflow heat exchanger 30 is arranged in the hydrogen storage device. When there is a peak regulation demand, the hydrogen is sent into the hydrogen-doped premixer and mixed with natural gas through the hydrogen flow control valve 15 and the first regulating valve 16, and the hydrogen pressure is gradually reduced to the fuel supply pressure of the gas turbine, and then the hydrogen is sent into the combustion chamber for combustion.

[0049] Renewable energy is used to power the electrolytic cell; hydrogen is separated and introduced into the solid-state hydrogen storage device 14, and oxygen is stored in the high-pressure oxygen storage tank 21 for combustion support. The combustion engine selects a micro gas turbine with a regenerator. The 270℃ exhaust gas of the combustion engine regenerator is used in three stages: the high-temperature section (270℃) is introduced into the finned counterflow heat exchanger tube in the solid-state hydrogen storage device 14 to trigger the MOFs material to release hydrogen; the low-temperature section (150℃) is used to introduce the heat exchanger 32 for heating. The hydrogen released from the solid-state hydrogen storage device 14 enters the gas turbine combustion chamber 26 for combustion. Oxygen from the high-pressure oxygen storage tank 21 enters the gas turbine combustion chamber 26, and a mixture gas is set up in the oxygen pipeline to mix compressed air from the compressor 24 outlet with oxygen. The oxygen concentration sensor feeds back the signal to the regulating valve in real time, dynamically controls the oxygen flow, and controls the oxygen concentration within the safe range of the combustion engine. The solid-state hydrogen storage device 14 is built-in finned counterflow heat exchanger 30, and the exhaust gas of the combustion engine flows through the heat exchanger to heat the solid-state hydrogen storage material and realize hydrogen release. The exhaust gas after heat release in the heat exchanger enters the heat exchanger 32 for heating the heat network water for heating.

[0050] Example 2

[0051] The application provides a control method for a hydrogen production-hydrogen storage-power generation integrated system, which specifically comprises the following steps:

[0052] (1) Wind and light resources are sufficient, and the generated power meets the power grid load and still has surplus: in this case, the hydrogen-doped gas turbine is stopped, at this time the valve of the intelligent shunt valve 11 leading to the hydrogen storage device is closed, the surplus power generated by wind and light passes through the isolation switch 6 and enters the electrolytic cell 9, the obtained hydrogen and oxygen are collected respectively, the hydrogen is sent to the solid-state hydrogen storage device 14 through the hydrogen purification device 10, the gas compressor 12 and the cooler 13 for storage. Oxygen is stored in the high-pressure oxygen storage tank 21 through the oxygen purification device 19 and the gas compressor 20.

[0053] (2) When the wind and light resources are insufficient, i.e. the power generated by the wind and light cannot meet the demand of the power grid load: in this case, the valve switch of the smart shunt valve 11 leading to the hydrogen storage device and the natural gas flow control valve 18 are opened to mix hydrogen and natural gas at a certain hydrogen mixing ratio. According to the specific demand of the power grid load, the amount of fuel added to the gas turbine is increased, and the power of the electrolytic cell 9 is gradually reduced as the load increases until it is turned off, at which time the disconnector 6 is disconnected. And the hydrogen flow control valve 15 is opened, using the hydrogen stored in the solid-state hydrogen storage device 14, the hydrogen pressure is reduced to the working pressure of the combustion chamber 26 through the adjusting valve 16, and then enters the hydrogen-mixed pre-mixer 17 to be premixed with natural gas at a certain ratio, and then enters the combustion chamber 26 for combustion. The air compressed by the air compressor 24 is sent to the gas mixer 23 to be mixed with high-pressure oxygen through the adjusting valve 2, and then sent to the combustion chamber for combustion. An oxygen concentration sensor is arranged in the outlet pipeline of the gas mixer 23 to feed back signals in real time to the adjusting valve 2, dynamically control the oxygen flow, and control the oxygen concentration within the safe range of the gas turbine. The power generated by the gas turbine is used to meet the system peak shaving demand.

[0054] (3) When the power grid load demand suddenly decreases during peak shaving: in this case, first reduce the valve opening degree of the smart shunt valve 11 leading to the hydrogen storage device and the valve opening degree of the natural gas flow control valve 18, reduce the amount of fuel entering the gas turbine, and reduce the power generation of the gas turbine; At the same time, gradually increase the hydrogen production power of the electrolytic cell 9, in order to avoid the problem of too low efficiency of the gas turbine under low load operation, part of the power generated by the gas turbine can also be used for hydrogen production. The hydrogen and oxygen obtained by production are respectively sent to the solid-state hydrogen storage device 14 and the high-pressure oxygen storage tank 21 for storage. When the system meets the power grid peak shaving demand, the gas turbine is stopped.

[0055] Those skilled in the art can clearly understand from the description of the above embodiments that each embodiment can be realized by means of software and the necessary general hardware platform, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of a software product, which can be stored in a computer readable storage medium such as ROM / RAM, magnetic disk, optical disk, etc., and includes a plurality of instructions for making a computer device (which can be a personal computer, server, or network device, etc.) execute the method described in each embodiment or some part of the embodiment.

[0056] The principles and embodiments of the application are described herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and core idea of the application; at the same time, for those skilled in the art, according to the idea of the application, the specific embodiments and application scope will be changed. In view of the above, the content of the specification should not be understood as a limitation of the application.

Claims

1. An integrated system for hydrogen production, storage, and power generation, characterized in that, The application relates to a renewable energy power generation system, which comprises a renewable energy power generation device, an electrolytic hydrogen production device, a hydrogen and oxygen storage device, a gas turbine power generation device and a waste heat recovery device connected with the gas turbine power generation device. The renewable energy power generation device is used for generating electric energy through wind and light energy conversion, and the electric energy is preferentially connected to a power grid; when the power generation capacity meets the power grid demand, the excess electric energy is consumed through the electrolytic hydrogen production device. The electrolytic hydrogen production device is used for generating hydrogen and oxygen through water electrolysis with the excess electric energy. The hydrogen and oxygen storage device is used for safely storing the hydrogen and oxygen generated by the electrolytic hydrogen production device through solid-state hydrogen storage and high-pressure oxygen storage, and flexibly adjusting the hydrogen and oxygen to meet the requirements of gas turbine rapid peak shaving response and renewable energy fluctuation consumption. The gas turbine power generation device is used for obtaining hydrogen and oxygen from the hydrogen and oxygen storage device, and realizing peak shaving power generation through hydrogen-doped combustion and oxygen-rich combustion. The waste heat recovery device is used for driving hydrogen storage and hydrogen release and regional heating through the exhaust waste heat of the gas turbine power generation device, so that energy cascade utilization is realized.

2. The integrated hydrogen production, storage and power generation system of claim 1, wherein, The renewable energy power generation device comprises a photovoltaic power generation unit and a wind power generation unit; the photovoltaic power generation unit and the wind power generation unit are respectively connected to the power grid through an alternating current bus; the electric energy generated by the photovoltaic power generation unit and the wind power generation unit is first input into the power grid through the alternating current bus, and when the power grid demand is met, the excess electric energy is input into the electrolytic hydrogen production device through a transformer-alternating current bus, so as to generate hydrogen and oxygen through water electrolysis. The photovoltaic power generation unit comprises a photovoltaic power generation set, a photovoltaic transformer and a DC / AC converter which are connected in sequence; and the wind power generation unit comprises a wind power generation set and a wind power transformer which are connected in sequence.

3. The integrated hydrogen production, storage and power generation system of claim 1, wherein, The electrolytic hydrogen production device comprises an isolation switch, a transformer, an AC / DC converter and an electrolytic cell which are connected in sequence.

4. The integrated hydrogen production, storage and power generation system of claim 3, wherein, The hydrogen and oxygen storage device comprises a hydrogen storage device and an oxygen storage device; a first pipeline connected to the electrolytic cell is connected to the hydrogen storage device; the hydrogen storage device comprises a hydrogen purification device, a gas compressor, a cooler, a solid-state hydrogen storage device and a hydrogen-doped premixer which are connected in sequence; an intelligent shunt valve is arranged between the hydrogen purification device and the gas compressor, and the intelligent shunt valve is also connected to the hydrogen-doped premixer; a hydrogen flow control valve and a regulating valve are arranged between the solid-state hydrogen storage device and the hydrogen-doped premixer.

5. The integrated hydrogen production, storage and power generation system of claim 4, wherein, A second pipeline connected to the electrolytic cell is connected to the oxygen storage device; the oxygen storage device comprises an oxygen purification device, a gas compressor, a high-pressure oxygen storage tank and a gas mixer which are connected in sequence; a regulating valve is arranged between the high-pressure oxygen storage tank and the gas mixer; an oxygen concentration sensor is arranged in a pipeline of a gas mixer outlet, real-time feedback signals are fed to the regulating valve, oxygen flow is dynamically controlled, and the oxygen concentration is controlled within a safe range of a gas turbine.

6. The integrated hydrogen production, storage and power generation system of claim 5, wherein, The gas turbine power generation device comprises a compressor, a combustion chamber, a turbine, a generator, a transformer two arranged in sequence, the hydrogen storage device is connected with the combustion chamber through a hydrogen-doped premixer, the oxygen storage device is connected with the compressor through a gas mixer, the compressed air is sent into the gas mixer by the compressor and mixed with the high-pressure oxygen passing through the regulating valve two, and the electric energy generated by the gas turbine power generation device is input into the power grid through the transformer two AC bus.

7. The integrated hydrogen production-hydrogen storage-power generation system of claim 6, wherein, The waste heat recovery device comprises a counter-flow regenerator, a fin-type counter-flow heat exchanger and a heat network heater connected in sequence, the counter-flow regenerator is connected with the gas turbine power generation device, the fin-type counter-flow heat exchanger is arranged in the solid-state hydrogen storage device, the gas mixer is connected with the counter-flow regenerator, and the mixed gas in the gas mixer is sent into the combustion chamber through the counter-flow regenerator for combustion. The exhaust gas of the counter-flow regenerator is utilized in two stages, the high-temperature section is sent into the fin-type counter-flow heat exchanger to trigger the dehydrogenation of the solid-state hydrogen storage material in the solid-state hydrogen storage device, and the low-temperature section is used to send into the heat network heater to heat the heat network return water for heating.

8. A control method for the integrated hydrogen production, hydrogen storage and power generation system according to any one of claims 1 to 7, characterized by, The control method comprises: Case one: the wind and light resources are sufficient, and the power generated by the renewable energy power generation device still has surplus after meeting the power grid load: in this case, the hydrogen-doped gas turbine is stopped, at this time, the valve switch of the intelligent shunt valve leading to the hydrogen storage device is closed, the surplus power generated by the wind and light is sent into the electrolytic cell through the isolation switch, the obtained hydrogen and oxygen are collected respectively, the hydrogen is sent into the solid-state hydrogen storage device through the hydrogen purification device, the gas compressor one, the cooler and the like for storage, and the oxygen is sent into the high-pressure oxygen storage tank through the oxygen purification device and the gas compressor two for storage; Case two: when the wind and light resources are insufficient, that is, the power generated by the wind and light cannot meet the demand of the power grid load: in this case, the valve switch of the intelligent shunt valve leading to the hydrogen storage device and the natural gas flow control valve are opened to mix the hydrogen and the natural gas, the fuel quantity added into the gas turbine is increased according to the specific power grid load demand, the power of the electrolytic cell is gradually reduced until the isolation switch is disconnected, the hydrogen flow control valve is opened, the hydrogen stored in the solid-state hydrogen storage device is used, the hydrogen pressure is reduced to the working pressure of the combustion chamber through the regulating valve one, then the hydrogen is sent into the hydrogen-doped premixer to be premixed with the natural gas, and then the hydrogen and the natural gas are sent into the combustion chamber for combustion, the air compressed by the compressor is sent into the gas mixer to be mixed with the high-pressure oxygen passing through the regulating valve two, and then the air and the oxygen are sent into the combustion chamber for combustion; Case three: when the power grid load demand suddenly decreases in the peak regulation process: in this case, firstly, the valve opening degree of the intelligent shunt valve leading to the hydrogen storage device and the valve opening degree of the natural gas flow control valve are reduced, the fuel quantity entering the gas turbine is reduced, the power generation power of the gas turbine is reduced, the hydrogen production power of the electrolytic cell is gradually increased, a part of the power generated by the gas turbine is also used for hydrogen production, and the obtained hydrogen and oxygen are sent into the hydrogen storage device and the oxygen storage device respectively for storage, and when the system meets the power grid peak regulation demand, the gas turbine is stopped.

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