Green electricity energy and hydrogen storage system and operation optimization method

Abstract

The invention relates to a green electricity energy and hydrogen storage system and an operation optimization method. The operation optimization method comprises the following steps: setting a green electricity output curve of the green electricity energy and hydrogen storage system; setting system parameters, including calculation of time step length and scale parameters and operation constraint parameters of green power, energy storage and hydrogen storage parts; the green electricity energy and hydrogen storage system is set as the operation logic of the surplus electricity on-line; initializing system parameters, and calculating operation process parameters in a preset period according to the calculation time step length; judging whether the green electricity energy and hydrogen storage system set as the current system parameter meets the requirement or not according to the operation process parameter calculation result, if yes, outputting a green electricity energy and hydrogen storage system configuration result according to the operation process parameter, and if not, resetting the system parameter; and performing optimal configuration on the green electricity energy and hydrogen storage system according to the configuration result of the green electricity energy and hydrogen storage system.

Description

Technical Field

[0001] The present invention relates to a green electricity energy storage and hydrogen storage system and an operation optimization method, belonging to the technical field of power grid optimization. Background Art

[0002] Hydrogen is a clean and efficient secondary energy source. Green hydrogen is produced from renewable energy sources such as wind and solar power. However, renewable energy sources are intermittent and volatile, and are highly dependent on the environment. This uncertainty is compounded by the deployment of hydrogen storage tanks and electrochemical energy storage.

[0003] The hydrogen energy system encompasses production, storage, transmission, and utilization. Ensuring more efficient hydrogen utilization and reducing power curtailment and hydrogen emissions are pressing challenges. For industrial parks requiring a stable hydrogen supply, a green hydrogen system can be deployed. This system incorporates green electricity, electrochemical energy storage, hydrogen production electrolyzers, and hydrogen storage tanks. Configuring a scalable green hydrogen system and equipment to meet the needs of industrial parks is crucial. Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the present invention proposes a green electricity energy storage and hydrogen storage system and an operation optimization method.

[0005] The technical solutions of the present invention are as follows: In one aspect, the present invention provides a method for optimizing the operation of a green electricity energy storage and hydrogen storage system, comprising the following steps: Set the green electricity output curve of the green electricity energy storage and hydrogen storage system; Set system parameters, including calculation time step, scale parameters and operation constraint parameters of green power, energy storage and hydrogen storage; Set up the green electricity energy storage and hydrogen storage system to operate as the surplus electricity grid; Initialize system parameters and calculate the operating process parameters within the preset period according to the calculation time step; The calculation results of the operating process parameters are used to determine whether the green energy storage and hydrogen storage system set to the current system parameters meets the requirements. If it does, the configuration results of the green energy storage and hydrogen storage system are output according to the operating process parameters. If it does not meet the requirements, the system parameters are reset. The green electricity energy storage and hydrogen storage system is optimized according to the configuration results of the green electricity energy storage and hydrogen storage system.

[0006] As a preferred embodiment, the green power output curve includes: Wind power output curve, photovoltaic power output curve, other green power output curves and total output curve; Among them, the total output curve is obtained by weighted summing the proportion of wind power, photovoltaic power and other green power installed capacity in the total green power installed capacity and the wind power output curve, photovoltaic power output curve and other green power output curves.

[0007] As a preferred embodiment, the scale parameters and operation constraint parameters of the green electricity, energy storage, and hydrogen storage parts include: Green power installed capacity; Electrochemical energy storage capacity, electrochemical charge and discharge power, electrochemical charge and discharge, electrochemical discharge depth; Electrolyzer hydrogen production scale, unit power consumption of electrolyzer hydrogen production, hydrogen production per electrolyzer, maximum load rate of electrolyzer, minimum load rate of electrolyzer; Annual hydrogen consumption scale, annual hydrogen consumption time and hydrogen storage tank capacity.

[0008] As a preferred embodiment, the step of calculating the operating process parameters within a preset period according to the operating calculation time step includes: Define the running variables at each computational time step; Calculate the green power output at each calculation time step according to the green power output curve and system parameters, determine whether there is surplus power to be connected to the grid, and calculate the amount of surplus power to be connected to the grid at each calculation time step based on the determination result; According to the system parameters, the planned hydrogen supply, actual hydrogen supply, hydrogen storage capacity of the hydrogen storage tank, hydrogen supply capacity of the hydrogen storage tank, hydrogen storage capacity of the hydrogen storage tank, hydrogen supply capacity of the hydrogen storage tank, hydrogen inflow capacity of the hydrogen storage tank, planned hydrogen production of the hydrogen production station, actual hydrogen production of the hydrogen production station, green electricity hydrogen production, electrochemical energy storage capacity, electrochemical energy supply capacity, electrochemical energy rechargeable capacity, electrochemical energy power supply capacity and electrochemical energy recharge capacity are calculated for each calculation time step.

[0009] As a preferred embodiment, the method for judging whether the green electricity energy storage and hydrogen storage system set as the current system parameters meets the requirements by calculating the operating process parameters is specifically as follows: The annual hydrogen production is calculated based on the actual hydrogen supply at each calculation time step in the calculation results of the operating process parameters, and it is determined whether the annual hydrogen production is greater than the annual hydrogen consumption scale. If so, it is determined that the green electricity energy storage hydrogen storage system set to the current system parameters meets the requirements.

[0010] As a preferred embodiment, the step of outputting the configuration result of the green electricity energy storage and hydrogen storage system according to the operation process parameters includes: Calculate the green electricity utilization hours based on the green electricity output and green electricity installed capacity at each calculation time step; Calculate the total on-grid power according to the surplus on-grid power at each calculation time step; Calculate the annual hydrogen production based on the actual hydrogen supply at each calculation time step; Calculate the annual hydrogen intake of the hydrogen storage tank based on the hydrogen intake of the hydrogen storage tank at each calculation time step; Calculate the annual hydrogen supply of the hydrogen storage tank based on the hydrogen supply of the hydrogen storage tank at each calculation time step; Calculate the annual power supply of electrochemical energy storage according to the power supply of electrochemical energy storage at each calculation time step; The annual electrochemical energy storage charge capacity is calculated based on the electrochemical energy storage charge capacity at each calculation time step.

[0011] As a preferred implementation, the system parameter initialization includes: Set the initial hydrogen storage capacity of the hydrogen storage tank and the initial electrochemical energy storage capacity.

[0012] On the other hand, the present invention further provides a green electricity energy storage and hydrogen storage system, applying the green electricity energy storage and hydrogen storage system operation optimization method described in any embodiment of the present invention, the system includes: Green electricity part, electrochemical energy storage, electrolyzer, hydrogen storage tank and hydrogen user; the green electricity part is connected to the power interface of the electrolyzer through a cable, the cable is connected to the electrochemical energy storage through one branch, and the cable is connected to the power grid through another branch; the hydrogen interface of the electrolyzer is connected to the hydrogen user through a hydrogen pipeline, and the hydrogen pipeline is connected to the hydrogen storage tank through a branch.

[0013] On the other hand, the present invention also proposes an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the green electricity energy storage and hydrogen storage system operation optimization method as described in any embodiment of the present invention is implemented.

[0014] On the other hand, the present invention further proposes a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the green electricity energy storage and hydrogen storage system operation optimization method as described in any embodiment of the present invention.

[0015] Additional aspects and advantages of the present invention will be set forth in the following description, and some of them will be obvious from the description, or may be learned by practicing the present invention. In addition, the various aspects and advantages of the present invention may be realized and obtained by the method steps and combinations particularly pointed out in the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the method flow of embodiment 1 of the present invention; Figure 2 Schematic diagram of a wind power output curve in the first embodiment of the present invention; Figure 3 Schematic diagram of the green power output curve in the first embodiment of the present invention; Figure 4Schematic diagram of the surplus power on-grid curve in the first embodiment of the present invention; Figure 5 Schematic diagram of the actual hydrogen supply curve in Example 1 of the present invention; Figure 6 Schematic diagram of the hydrogen storage capacity curve of the hydrogen storage tank in Example 1 of the present invention; Figure 7 Schematic diagram of the hydrogen supply curve of the hydrogen storage tank in Example 1 of the present invention; Figure 8 Schematic diagram of the hydrogen storage capacity of the hydrogen storage tank in Example 1 of the present invention; Figure 9 Schematic diagram of the hydrogen supply curve of the hydrogen storage tank in Example 1 of the present invention; Figure 10 Schematic diagram of a hydrogen intake curve of a hydrogen storage tank in Example 1 of the present invention; Figure 11 Schematic diagram of the planned hydrogen production curve of the hydrogen production station in Example 1 of the present invention; Figure 12 Schematic diagram of the actual hydrogen production curve of the hydrogen production station in Example 1 of the present invention; Figure 13 Schematic diagram of the green electricity hydrogen production curve in Example 1 of the present invention; Figure 14 Schematic diagram of the electrochemical energy storage capacity curve in Example 1 of the present invention; Figure 15 Schematic diagram of the electrochemical energy storage capacity curve in Example 1 of the present invention; Figure 16 Schematic diagram of the electrochemical energy storage charge capacity curve in Example 1 of the present invention; Figure 17 Schematic diagram of the electrochemical energy storage power supply curve in Example 1 of the present invention; Figure 18 Schematic diagram of the electrochemical energy storage charge capacity curve in Example 1 of the present invention; Figure 19 This is a schematic diagram of the system structure of the second embodiment of the present invention. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0018] It should be understood that the step numbers used herein are only for convenience of description and are not intended to limit the order in which the steps are to be executed.

[0019] It should be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0020] The terms “include” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0021] The term "and / or" refers to and includes any and all possible combinations of one or more of the associated listed items.

[0022] Example 1: See also Figure 1 This embodiment provides a method for optimizing the operation of a green electricity energy storage and hydrogen storage system, comprising the following steps: S100, setting a green electricity output curve for the green electricity energy storage and hydrogen storage system; Among them, the green power output curve includes: Wind power output curve, photovoltaic output curve, other green power output curve and total output curve; other green power output includes solar thermal, biomass energy, geothermal energy, wave energy, tidal energy, hydropower, etc.

[0023] Among them, the wind power output curve can be expressed as: ; The normalized wind power output curve under 8760 hours in a year is as follows: Figure 2 shown.

[0024] The photovoltaic output curve can be expressed as: ; Other green power output curves can be expressed as: ; The total output curve is obtained by weighted summing the proportion of wind power, photovoltaic power, and other green power installed capacity in the total green power installed capacity with the wind power output curve, photovoltaic power output curve, and other green power output curves. The specific calculation formula is as follows: ; Where t represents hours (h), 、 、 Respectively represent the proportion of wind power, photovoltaic power, and other green power installed capacity to the total green power installed capacity. The calculation period is 8760 hours per year.

[0025] S200, set system parameters, including calculation time step dt = 1h, and scale parameters and operation constraint parameters of green power, energy storage, and hydrogen storage, including: Green power installed capacity, .

[0026] Electrochemical energy storage capacity , charge and discharge power , charge and discharge efficiency , discharge depth .

[0027] Electrolyzer hydrogen production scale , unit power consumption of hydrogen production , hydrogen production per electrolyzer , the maximum load rate of the electrolytic cell , minimum load rate of electrolytic cell .

[0028] Annual hydrogen consumption , annual hydrogen consumption time and hydrogen storage tank capacity .

[0029] S300: Set the green electricity energy storage and hydrogen storage system to the operating logic of surplus electricity access to the grid.

[0030] S400: Initialize system parameters and calculate the operating process parameters within a preset period according to the calculation time step. The system parameter initialization specifically includes: Set the initial hydrogen storage capacity of the hydrogen storage tank and initial storage capacity of electrochemical energy storage ; The operating process parameters calculated within the preset period according to the calculation time step include: Define the runtime variables at each computational time step, including: Green power output , Internet power , planned hydrogen supply , actual hydrogen supply , hydrogen storage capacity of hydrogen storage tank , the amount of hydrogen available in the hydrogen storage tank , hydrogen storage tank can store hydrogen , hydrogen intake of hydrogen storage tank , hydrogen supply of hydrogen storage tank , the planned hydrogen production capacity of the hydrogen production station , the actual hydrogen production capacity of the hydrogen production station , green electricity hydrogen production , electrochemical energy storage capacity , electrochemical energy storage can provide power , electrochemical energy storage rechargeable capacity , electrochemical energy storage power supply , electrochemical energy storage charge capacity ; in, The index representing the computation time step.

[0031] Calculate the green power output at each calculation time step according to the green power output curve and system parameters: ; Green power output (MW) in 8760 hours a year Figure 3 shown.

[0032] Determine whether there is enough power to access the Internet. If so, then: ; If no, then: ; The amount of surplus electricity on-grid (MW) in 8760 hours per year is as follows: Figure 4 shown.

[0033] Calculate the planned hydrogen supply at each calculation time step according to the system parameters: ; Calculate the actual hydrogen supply at each calculation time step according to the system parameters:

[0034] Actual hydrogen supply under 8760 hours per year ( )like Figure 5 shown.

[0035] Calculate the hydrogen storage capacity of the hydrogen storage tank at each calculation time step according to the system parameters:

[0036] Hydrogen storage capacity of hydrogen storage tank under 8760h per year ( )like Figure 6 shown.

[0037] Calculate the hydrogen capacity of the hydrogen storage tank at each calculation time step according to the system parameters:

[0038] The amount of hydrogen available from the hydrogen storage tank for 8760 hours a year ( )like Figure 7 shown.

[0039] Calculate the hydrogen storage capacity of the hydrogen storage tank at each calculation time step according to the system parameters:

[0040] The amount of hydrogen that can be stored in a hydrogen storage tank under 8760 hours per year ( )like Figure 8 shown.

[0041] Calculate the hydrogen supply of the hydrogen storage tank at each calculation time step according to the system parameters:

[0042] Hydrogen supply of hydrogen storage tank under 8760h per year ( )like Figure 9 shown.

[0043] Calculate the amount of hydrogen entering the hydrogen storage tank at each calculation time step according to the system parameters: ; Hydrogen intake of hydrogen storage tanks under 8760 hours per year ( )like Figure 10 shown.

[0044] Calculate the planned hydrogen production of the hydrogen production station at each calculation time step according to the system parameters: First determine:

[0045] Is it established? If so, then:

[0046] If not, then:

[0047] The planned hydrogen production capacity of the hydrogen production station under 8760 hours per year ( )like Figure 11 shown.

[0048] Calculate the actual hydrogen production of the hydrogen production station at each calculation time step according to the system parameters:

[0049] The actual hydrogen production of the hydrogen production station under 8760 hours a year ( )like Figure 12 shown.

[0050] Calculate the amount of green electricity hydrogen production at each calculation time step according to the system parameters:

[0051] Green electricity hydrogen production under 8760 hours a year ( )like Figure 13 shown.

[0052] Calculate the electrochemical energy storage capacity at each calculation time step according to the system parameters:

[0053] Electrochemical energy storage capacity under 8760h a year ( )like Figure 14 shown.

[0054] Calculate the electrochemical energy storage capacity available at each calculation time step according to the system parameters:

[0055] The amount of electricity that can be supplied by electrochemical energy storage under 8760 hours per year ( )like Figure 15 shown.

[0056] Calculate the electrochemical energy storage rechargeable capacity at each calculation time step according to the system parameters:

[0057] Rechargeable electrochemical energy storage capacity under 8760h per year ( )like Figure 16 shown.

[0058] Calculate the electrochemical energy storage power supply at each calculation time step according to the system parameters: First determine:

[0059] Determine whether the above formula is true. If it is true, then:

[0060] If not, then:

[0061] Electrochemical energy storage power supply under 8760h a year ( )like Figure 17 shown.

[0062] Calculate the electrochemical energy storage charge at each calculation time step according to the system parameters:

[0063] Electrochemical energy storage charge capacity under 8760h per year ( )like Figure 18 shown.

[0064] S500, judging whether the green electricity energy storage and hydrogen storage system set as the current system parameters meets the requirements through the calculation results of the operating process parameters, and if so, proceeding to step S600, otherwise returning to step S200; specifically, the method for judging whether the green electricity energy storage and hydrogen storage system set as the current system parameters meets the requirements through the calculation results of the operating process parameters is as follows: Calculate the annual hydrogen production based on the actual hydrogen supply at each calculation time step in the calculation results of the operating process parameters:

[0065] Determine whether the annual hydrogen production is greater than the annual hydrogen consumption scale If yes, it is determined that the green energy storage and hydrogen storage system set to the current system parameters meets the requirements and the process goes to step S600; otherwise, it returns to step S200.

[0066]

[0067] Go to step S600.

[0068] S600: Optimize the configuration of the green electricity energy storage and hydrogen storage system according to the configuration results of the green electricity energy storage and hydrogen storage system, including: Calculate the green power utilization hours based on the green power output and green power installed capacity at each calculation time step:

[0069] The total grid-connected power is calculated based on the remaining grid-connected power at each calculation time step:

[0070] Calculate the annual hydrogen production based on the actual hydrogen supply at each calculation time step:

[0071] Calculate the annual hydrogen intake of the hydrogen storage tank based on the hydrogen intake of the hydrogen storage tank at each calculation time step:

[0072] Calculate the annual hydrogen supply of the hydrogen storage tank based on the hydrogen supply of the hydrogen storage tank at each calculation time step:

[0073] Calculate the annual power supply of electrochemical energy storage based on the power supply of electrochemical energy storage at each calculation time step:

[0074] Calculate the annual electrochemical energy storage charge capacity based on the electrochemical energy storage charge capacity at each calculation time step: .

[0075] This embodiment optimizes the structure of the hydrogen energy system by configuring electrochemical energy storage, hydrogen storage tanks and other devices, reduces power abandonment and hydrogen emission, saves energy and improves economic benefits.

[0076] By constructing a system model, the operating parameters can be calculated and the rationality of the device capacity selection can be determined.

[0077] Through reasonable system configuration and operation process parameter calculation, the stable hydrogen supply needs of hydrogen users can be met to the greatest extent possible, and the green electricity energy storage and hydrogen storage system can be optimized.

[0078] Example 2: See also Figure 19 This embodiment provides a green electricity energy storage and hydrogen storage system, which applies the green electricity energy storage and hydrogen storage system operation optimization method described in the first embodiment. The system includes: Green electricity part, electrochemical energy storage, electrolyzer, hydrogen storage tank and hydrogen user; the green electricity part is connected to the power interface of the electrolyzer through a cable, the cable is connected to the electrochemical energy storage through one branch, and the cable is connected to the power grid through another branch; the hydrogen interface of the electrolyzer is connected to the hydrogen user through a hydrogen pipeline, and the hydrogen pipeline is connected to the hydrogen storage tank through a branch.

[0079] During system operation, green electricity generated by the green power component is transmitted via cables to the electrolyzer. The electrolyzer then receives the green electricity and produces hydrogen, which is then transmitted to hydrogen users via hydrogen pipelines. When the green electricity meets the needs of hydrogen users and has a surplus, the first consideration is to use the excess green electricity to produce hydrogen through the electrolyzer, and then store the excess hydrogen in hydrogen storage tanks. When the hydrogen storage tanks reach their maximum storage capacity, the second consideration is to store the excess green electricity through electrochemical energy storage. When both the electrochemical energy storage and hydrogen storage tanks reach their maximum storage capacity, the last consideration is to transmit the excess green electricity to the grid. When the green electricity cannot meet the needs of hydrogen users, the first consideration is to release hydrogen to hydrogen users through hydrogen storage tanks, while reducing the load on the electrolyzer. When the hydrogen storage tanks reach their maximum hydrogen supply capacity, the second consideration is to release the stored electricity to the electrolyzer through electrochemical energy storage, and then produce hydrogen to meet the needs of hydrogen users. When both the hydrogen storage tanks and electrochemical energy storage reach their maximum supply capacity, the last consideration is to feed electricity back from the grid to the electrolyzer, and then produce hydrogen for supply to hydrogen users.

[0080] As a preferred implementation of this embodiment, the hydrogen production capacity of the electrolyzer is to ensure the demand for hydrogen use and storage at the same time, and can be increased to the maximum load rate; when the power supply is lower than the minimum load of a single electrolyzer, operation is not considered.

[0081] As a preferred implementation of this embodiment, when the hydrogen supply capacity of the electrolyzer does not meet the hydrogen consumption, the hydrogen storage tank does not consider storing hydrogen; the maximum hydrogen supply capacity of the hydrogen storage tank considers deducting the residual gas retained in the tank under atmospheric pressure.

[0082] As a preferred implementation of this embodiment, electrochemical energy storage only stores electricity when there is surplus green electricity, and does not store grid electricity; the charging and discharging capabilities of electrochemical energy storage take into account both the surplus electricity and the charging and discharging power.

[0083] The differences between the original system and this one are that this one considers the charge and discharge efficiency and minimum discharge capacity of electrochemical energy storage; it also accounts for residual gas trapped inside the hydrogen storage tank at atmospheric pressure, even at the tank's maximum hydrogen supply capacity; and it considers power fluctuations when calculating the electrolyzer, shutting down the electrolyzer if the power supply falls below the electrolyzer's minimum load. The calculation model closely matches the characteristics of the actual device.

[0084] Example 3: This embodiment proposes an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the green electricity energy storage and hydrogen storage system operation optimization method as described in any embodiment of the present invention is implemented.

[0085] Example 4: This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the method for optimizing the operation of a green electricity energy storage and hydrogen storage system as described in any embodiment of the present invention is implemented.

[0086] In the embodiments of the present application, "at least one" refers to one or more, and "more" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can represent: a, b, c, a and b, a and c, b and c or a and b and c, where a, b, c can be single or multiple.

[0087] Those skilled in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented using a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0088] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0089] In the several embodiments provided in this application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of this application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory; hereinafter referred to as: ROM), random access memory (Random Access Memory; hereinafter referred to as: RAM), magnetic disk or optical disk, and other media that can store program code.

[0090] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for optimizing the operation of a green electricity energy storage and hydrogen storage system, characterized in that: The following steps are involved: Set the green electricity output curve of the green electricity energy storage and hydrogen storage system; Set system parameters, including calculation time step, scale parameters and operation constraint parameters of green power, energy storage and hydrogen storage; Set up the green electricity energy storage and hydrogen storage system to operate as the surplus electricity grid; Initialize system parameters and calculate the operating process parameters within the preset period according to the calculation time step; The calculation results of the operating process parameters are used to determine whether the green energy storage and hydrogen storage system set to the current system parameters meets the requirements. If it does, the configuration results of the green energy storage and hydrogen storage system are output according to the operating process parameters. If it does not meet the requirements, the system parameters are reset. The green electricity energy storage and hydrogen storage system is optimized according to the configuration results of the green electricity energy storage and hydrogen storage system.

2. A green electricity energy storage and hydrogen storage system operation optimization method according to claim 1, characterized in that: The green power output curve includes: Wind power output curve, photovoltaic power output curve, other green power output curves and total output curve; Among them, the total output curve is obtained by weighted summing the proportion of wind power, photovoltaic power and other green power installed capacity in the total green power installed capacity and the wind power output curve, photovoltaic power output curve and other green power output curves.

3. The green electricity energy storage and hydrogen storage system operation optimization method according to claim 1, characterized in that: The scale parameters and operation constraint parameters of the green electricity, energy storage, and hydrogen storage parts include: Green power installed capacity; Electrochemical energy storage capacity, electrochemical charge and discharge power, electrochemical charge and discharge, electrochemical discharge depth; Electrolyzer hydrogen production scale, unit power consumption of electrolyzer hydrogen production, hydrogen production per electrolyzer, maximum load rate of electrolyzer, minimum load rate of electrolyzer; Annual hydrogen consumption scale, annual hydrogen consumption time and hydrogen storage tank capacity.

4. A green electricity energy storage and hydrogen storage system operation optimization method according to claim 3, characterized in that: The step of calculating the operation process parameters within a preset period according to the operation calculation time step includes: Define the running variables at each calculation time step; Calculate the green power output at each calculation time step according to the green power output curve and system parameters, determine whether there is surplus power to be connected to the grid, and calculate the amount of surplus power to be connected to the grid at each calculation time step based on the determination result; According to the system parameters, the planned hydrogen supply, actual hydrogen supply, hydrogen storage capacity of the hydrogen storage tank, hydrogen supply capacity of the hydrogen storage tank, hydrogen storage capacity of the hydrogen storage tank, hydrogen supply capacity of the hydrogen storage tank, hydrogen inflow capacity of the hydrogen storage tank, planned hydrogen production of the hydrogen production station, actual hydrogen production of the hydrogen production station, green electricity hydrogen production, electrochemical energy storage capacity, electrochemical energy supply capacity, electrochemical energy rechargeable capacity, electrochemical energy power supply capacity and electrochemical energy recharge capacity are calculated for each calculation time step.

5. A green electricity energy storage and hydrogen storage system operation optimization method according to claim 4, characterized in that: The method for judging whether the green electricity energy storage and hydrogen storage system set as the current system parameters meets the requirements by calculating the operating process parameters is specifically as follows: The annual hydrogen production is calculated based on the actual hydrogen supply at each calculation time step in the calculation results of the operating process parameters, and it is determined whether the annual hydrogen production is greater than the annual hydrogen consumption scale. If so, it is determined that the green electricity energy storage hydrogen storage system set to the current system parameters meets the requirements.

6. A green electricity energy storage and hydrogen storage system operation optimization method according to claim 5, characterized in that: The steps of outputting the configuration results of the green electricity energy storage and hydrogen storage system according to the operating process parameters include: Calculate the green electricity utilization hours based on the green electricity output and green electricity installed capacity at each calculation time step; Calculate the total on-grid power according to the surplus on-grid power at each calculation time step; Calculate the annual hydrogen production based on the actual hydrogen supply at each calculation time step; Calculate the annual hydrogen intake of the hydrogen storage tank based on the hydrogen intake of the hydrogen storage tank at each calculation time step; Calculate the annual hydrogen supply of the hydrogen storage tank based on the hydrogen supply of the hydrogen storage tank at each calculation time step; Calculate the annual power supply of electrochemical energy storage according to the power supply of electrochemical energy storage at each calculation time step; The annual charge capacity of the electrochemical energy storage is calculated based on the electrochemical energy storage charge capacity at each calculation time step.

7. The green electricity energy storage and hydrogen storage system operation optimization method according to claim 1, characterized in that: The system parameter initialization includes: Set the initial hydrogen storage capacity of the hydrogen storage tank and the initial electrochemical energy storage capacity.

8. A green electricity energy storage and hydrogen storage system, characterized in that: The green electricity energy storage and hydrogen storage system operation optimization method according to any one of claims 1 to 7 above is applied, and the system comprises: Green electricity part, electrochemical energy storage, electrolyzer, hydrogen storage tank and hydrogen user; the green electricity part is connected to the power interface of the electrolyzer through a cable, the cable is connected to the electrochemical energy storage through one branch, and the cable is connected to the power grid through another branch; the hydrogen interface of the electrolyzer is connected to the hydrogen user through a hydrogen pipeline, and the hydrogen pipeline is connected to the hydrogen storage tank through a branch.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the green electricity energy storage and hydrogen storage system operation optimization method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the green electricity energy storage and hydrogen storage system operation optimization method according to any one of claims 1 to 7 is implemented.

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