Organic Liquid Hydrogen Storage System Based on Renewable Energy Hydrogen Production and Its Optimization Method

Abstract

The present application discloses an organic liquid hydrogen storage system based on renewable energy hydrogen production, an optimization method thereof, a storage medium and an electronic device, including: a lean hydrogen storage tank receiving module, an energy supply module, a hydrogen production module, a hydrogenation module and a rich hydrogen storage tank shipping module; the lean hydrogen storage tank receiving module is used to receive a lean hydrogen storage tank storing lean hydrogen organic liquid from an organic liquid dehydrogenation system; the energy supply module is used to supply energy to the hydrogen production module through the electric energy generated by renewable energy, so that the hydrogen production module performs electrolytic hydrogen production; the hydrogenation module is used to perform a hydrogenation reaction on the lean hydrogen organic liquid in the lean hydrogen storage tank receiving module to obtain rich hydrogen organic liquid; the rich hydrogen storage tank shipping module is used to store the rich hydrogen organic liquid generated by the hydrogenation module and transport the rich hydrogen storage tank storing the rich hydrogen organic liquid to the organic liquid dehydrogenation system. It solves the problem of insufficient supply-demand allocation between the output change on the side of wind and solar power generation and the load fluctuation on the user side.

Description

Technical Field

[0001] This application belongs to the technical field of organic liquid hydrogen storage, and particularly relates to an organic liquid hydrogen storage system based on renewable energy hydrogen production, an optimization method thereof, a storage medium, and an electronic device. Background Art

[0002] Hydrogen production from renewable energy sources (such as wind energy and solar photovoltaics) is a key path for the low-carbon development of the hydrogen energy industry. However, the significant volatility of wind and photovoltaic power generation leads to unstable power supply, and there is a mismatch problem between this instability and the ever-changing electricity demand at the user end. Organic liquid hydrogen storage technology provides an effective solution, especially in remote areas or distributed energy scenarios, where it is particularly suitable to combine wind and solar power generation, electrolytic hydrogen production, and organic liquid hydrogen storage (Liquid Organic Hydrogen Carrier, LOHC) technology. This technology utilizes the reversible hydrogenation / dehydrogenation characteristics of specific organic compounds (such as toluene, N-ethylcarbazole, etc.): during the hydrogenation process, hydrogen combines with liquid organic matter to form a hydrogen-rich compound (LOHC + ), achieving the chemical storage of hydrogen; during dehydrogenation, hydrogen is released through a catalyst and heating, and the organic matter returns to the hydrogen-poor state (LOHC - ) and is recycled.

[0003] However, up to now, there is still a lack of an effective solution using organic liquid hydrogen storage technology that can dynamically adjust the load fluctuations at the user end while taking into account the output changes on the wind and solar power generation side, thereby achieving a reasonable allocation between supply and demand. Summary of the Invention

[0004] This application aims to provide an organic liquid hydrogen storage system based on renewable energy hydrogen production, an optimization method thereof, a device, and a storage medium, at least solving the problem of resource waste caused by the inability of renewable energy hydrogen production stations to take into account the output changes on the wind and solar power generation side and the load fluctuations at the user end.

[0005] In a first aspect, an embodiment of this application discloses an organic liquid hydrogen storage system based on renewable energy hydrogen production, including:

[0006] A hydrogen-poor storage tank receiving module, an energy supply module, a hydrogen production module, a hydrogenation module, and a hydrogen-rich storage tank shipping-out module;

[0007] The hydrogen-poor storage tank receiving module is used to receive a hydrogen-poor storage tank storing hydrogen-poor organic liquid from an organic liquid dehydrogenation system;

[0008] The energy supply module is used to supply energy to the hydrogen production module through the electric energy generated by renewable energy, so that the hydrogen production module performs electrolytic hydrogen production;

[0009] The hydrogenation module is used to perform a hydrogenation reaction on the hydrogen - poor organic liquid in the hydrogen - poor storage tank receiving module to obtain a hydrogen - rich organic liquid;

[0010] The hydrogen - rich storage tank shipping module is used to store the hydrogen - rich organic liquid produced by the hydrogenation module and transport the hydrogen - rich storage tank storing the hydrogen - rich organic liquid to the organic liquid dehydrogenation system.

[0011] In a second aspect, an optimization method for an organic liquid hydrogen storage system based on renewable energy hydrogen production according to an embodiment of the present application further includes:

[0012] According to a coupled physical model characterizing the process of transferring hydrogen - rich storage tanks and hydrogen - poor storage tanks between the organic liquid hydrogen storage system and the organic liquid dehydrogenation system, a parameter optimization model constrained by the influence conditions of environmental changes on renewable energy power generation is established;

[0013] Solve the parameter optimization model to obtain multiple hydrogen storage design parameter values of the organic liquid hydrogen storage system based on renewable energy hydrogen production;

[0014] Configure the organic liquid hydrogen storage system based on renewable energy hydrogen production according to the obtained multiple hydrogen storage design parameter values to obtain the optimized organic liquid hydrogen storage system based on renewable energy hydrogen production.

[0015] In a third aspect, an optimization device for an organic liquid hydrogen storage system based on renewable energy hydrogen production according to an embodiment of the present application further includes:

[0016] A modeling module, configured to establish a parameter optimization model constrained by the influence conditions of environmental changes on renewable energy power generation according to a coupled physical model characterizing the process of transferring hydrogen - rich storage tanks and hydrogen - poor storage tanks between the organic liquid hydrogen storage system and the organic liquid dehydrogenation system;

[0017] A hydrogenation station parameter solving module, configured to solve the parameter optimization model to obtain multiple hydrogen storage design parameter values of the organic liquid hydrogen storage system based on renewable energy hydrogen production;

[0018] A hydrogenation station configuration module, configured to configure the organic liquid hydrogen storage system based on renewable energy hydrogen production according to the obtained multiple hydrogen storage design parameter values to obtain the optimized organic liquid hydrogen storage system based on renewable energy hydrogen production.

[0019] In a fourth aspect, an electronic device according to an embodiment of the present application further includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0020] Fifth aspect, embodiments of the present application also disclose a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0021] In summary, in the embodiments of the present application, by setting up a lean hydrogen storage tank receiving module, the lean hydrogen organic liquid storage tank that can still be recycled after dehydrogenation is effectively recovered and re-enters the hydrogen storage system to reduce the waste of storage tank resources and improve the operating efficiency of the hydrogen storage system. Through the hydrogenation module, the lean hydrogen organic liquid is hydrogenated, so that the organic liquid in the hydrogen-free state is converted into a hydrogen-rich state, realizing the safe storage of hydrogen and enhancing the circulation ability of the storage tank between the hydrogen production system and the hydrogenation system. At the same time, by directly supplying power to the hydrogen production module through the power supply module, the hydrogen production process is closely coupled with the renewable energy power generation side, so as to use the variable electric energy generated by wind energy and solar photovoltaic power generation for electrolytic hydrogen production, improve the energy utilization rate, and avoid the efficiency loss caused by unstable power supply during the hydrogen production process. Finally, the hydrogen-rich storage tank transportation module transports the hydrogenated hydrogen-rich organic liquid storage tank to the dehydrogenation system, so that the storage and release of hydrogen energy can be flexibly adjusted according to the load changes of the user side, thereby improving the supply-demand matching ability of hydrogen energy and effectively alleviating the mismatch problem between the volatility of wind and solar power generation and the changes in user-side demand. Thus, the embodiments of the present application construct an organic liquid hydrogen storage system based on renewable energy hydrogen production, utilize the closed-loop circulation mechanism of the storage tank, optimize the connection relationship between the hydrogen production and hydrogen storage processes, while improving the resource utilization efficiency, ensure the adaptability to the power fluctuations on the wind and solar power generation side, and provide a dynamic adjustment mechanism for the load fluctuations of the user side. This system design effectively solves the problem of insufficient supply-demand allocation between the output changes on the wind and solar power generation side and the load fluctuations of the user side in the prior art, and at the same time reduces the phenomenon of low utilization rate of storage tanks and large resource waste during the hydrogen storage process, providing an innovative solution for the efficient operation of the renewable energy hydrogen production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the drawings:

[0023] Figure 1 is an organic liquid hydrogen storage system based on renewable energy hydrogen production provided by an embodiment of the present application;

[0024] Figure 2 is a composition diagram of the power supply module provided by an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the interaction mode between the hydrogen storage system provided by an embodiment of the present application and the organic liquid dehydrogenation system in the application scenario of a hydrogen refueling station;

[0026] Figure 4It is a flowchart of steps of an optimization method for an organic liquid hydrogen storage system based on renewable energy hydrogen production provided by an embodiment of the present application;

[0027] Figure 5 It is a flowchart of steps of another optimization method for an organic liquid hydrogen storage system based on renewable energy hydrogen production provided by an embodiment of the present application;

[0028] Figure 6 It is a complete planning process provided according to an embodiment of the present application;

[0029] Figure 7 It is another complete planning process provided according to an embodiment of the present application;

[0030] Figure 8 It is a block diagram of an optimization device for an organic liquid hydrogen storage system based on renewable energy hydrogen production provided by an embodiment of the present application;

[0031] Figure 9 It is a block diagram of an electronic device of an embodiment provided by an embodiment of the present application. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope protected by the present application.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0034] As Figure 1 shown, an organic liquid hydrogen storage system 11 based on renewable energy hydrogen production provided by an embodiment of the present application includes:

[0035] A lean hydrogen storage tank receiving module 111, an energy supply module 112, a hydrogen production module 113, a hydrogenation module 114, and a rich hydrogen storage tank shipping module 115;

[0036] The hydrogen-lean storage tank receiving module 111 is used to receive the hydrogen-lean storage tank X storing the hydrogen-lean organic liquid from the organic liquid dehydrogenation system 10;

[0037] The energy supply module 112 is used to supply energy to the hydrogen production module through the electric energy generated by renewable energy, so that the hydrogen production module 113 can carry out electrolytic hydrogen production;

[0038] The hydrogenation module 114 is used to carry out a hydrogenation reaction on the hydrogen-lean organic liquid in the hydrogen-lean storage tank receiving module to obtain a hydrogen-rich organic liquid;

[0039] The hydrogen-rich storage tank shipping module 115 is used to store the hydrogen-rich organic liquid generated by the hydrogenation module and transport the hydrogen-rich storage tank Y storing the hydrogen-rich organic liquid to the organic liquid dehydrogenation system 10.

[0040] In some embodiments of the present application, the organic liquid hydrogen storage system 11 based on renewable energy hydrogen production includes a hydrogen-lean storage tank receiving module 111, an energy supply module 112, a hydrogen production module 113, a hydrogenation module 114, and a hydrogen-rich storage tank shipping module 115. Among them, the hydrogen-lean storage tank receiving module 111 is connected to the hydrogenation station system 10 based on organic liquid dehydrogenation and is used to receive the hydrogen-lean storage tank X; the energy supply module 112 is connected to the hydrogen production module 113 and provides stable renewable electric energy to the hydrogen production module 113 to realize the process of electrolytic hydrogen generation; the hydrogenation module 114 is connected to the hydrogen production module 113 and is used to input hydrogen into the hydrogen-lean organic liquid obtained from the hydrogen-lean storage tank X, so that the hydrogen-lean organic liquid is converted into a hydrogen-rich state through a hydrogenation reaction; the hydrogen-rich storage tank shipping module 115 is connected to the hydrogenation module 114 and is used to store the hydrogen-rich organic liquid to obtain the hydrogen-rich storage tank Y and transport the hydrogen-rich storage tank Y to the hydrogenation station system 10 based on organic liquid dehydrogenation. "Liquid Organic Hydrogen Carrier (LOHC)" is a technology for storing and transporting hydrogen energy through reversible hydrogenation / dehydrogenation reactions of organic compounds. During the operation of the hydrogenation module 114, the hydrogen-lean organic liquid reacts with hydrogen to generate a hydrogen-rich organic liquid, which improves the safe storage performance of hydrogen energy and reduces the energy consumption and storage difficulty in traditional high-pressure gaseous or low-temperature liquid hydrogen storage technologies. The hydrogen-lean storage tank receiving module 111 and the hydrogen-rich storage tank shipping module 115 form a storage tank circulation transportation mechanism, which improves the utilization efficiency of the storage tank and reduces the waste of storage tank resources. The energy supply module 112 provides renewable electric energy to the hydrogen production module 113, enabling the hydrogen production module to operate environmentally friendly and ensuring the continuity, stability, and sustainability of hydrogen generation within the system. The hydrogenation module 114 optimizes the hydrogenation conversion process, improves the reaction efficiency, and realizes the chemical state safe storage of hydrogen. The hydrogen-rich storage tank shipping module 115 transports the hydrogen-rich storage tank Y to the hydrogenation station system, forming an efficient linkage mechanism between the hydrogen production and hydrogenation links to meet the dynamic hydrogen supply and demand.

[0041] In summary, in the embodiment of the present application, by setting up a lean hydrogen storage tank receiving module, the lean hydrogen organic liquid storage tank that can still be recycled after dehydrogenation is effectively recovered and re-enters the hydrogen storage system to reduce the waste of storage tank resources and improve the operating efficiency of the hydrogen storage system. Through the hydrogenation module, the lean hydrogen organic liquid is hydrogenated, so that the organic liquid in the hydrogen-free state is converted into a hydrogen-rich state, realizing the safe storage of hydrogen and enhancing the circulation ability of the storage tank between the hydrogen production system and the hydrogenation system. At the same time, by directly supplying power to the hydrogen production module through the energy supply module, the hydrogen production process is closely coupled with the renewable energy power generation side, so as to use the variable electric energy generated by wind energy and solar photovoltaic power generation for electrolytic hydrogen production, improve the energy utilization rate, and avoid the efficiency loss caused by unstable power supply during the hydrogen production process. Finally, the hydrogen-rich storage tank transporting module transports the hydrogenated hydrogen-rich organic liquid storage tank to the dehydrogenation system, enabling the storage and release of hydrogen energy to be flexibly adjusted according to the load changes at the user end, thereby improving the supply-demand matching ability of hydrogen energy and effectively alleviating the mismatch problem between the volatility of wind and solar power generation and the demand changes at the user end. Thus, the embodiment of the present application constructs an organic liquid hydrogen storage system based on renewable energy hydrogen production, uses the closed-loop circulation mechanism of the storage tank to optimize the connection relationship between the hydrogen production and hydrogen storage processes, while improving the resource utilization efficiency, ensuring the adaptability to the power fluctuations on the wind and solar power generation side, and providing a dynamic adjustment mechanism for the load fluctuations at the user end. This system design effectively solves the problem of insufficient supply-demand allocation between the output changes on the wind and solar power generation side and the load fluctuations at the user end in the prior art, and at the same time reduces the phenomena of low utilization rate of storage tanks and large resource waste during the hydrogen storage process, providing an innovative solution for the efficient operation of the renewable energy hydrogen production system.

[0042] Optionally, as Figure 2 shown, the energy supply module 112 includes at least one of a fan 1121 and a photovoltaic device 1122.

[0043] In some embodiments of the present application, the energy supply module 112 is composed of at least one of a wind turbine 1121 and a photovoltaic device 1122. The energy supply module 112 provides stable electrical energy support for the hydrogen production module by combining or using alone the wind power generation of the wind turbine 1121 and the solar power generation of the photovoltaic device 1122. The wind turbine 1121 can convert wind energy into electrical energy by using wind power generation technology, and its power generation depends on the rated capacity of the wind turbine and the local wind conditions. The photovoltaic device 1122 absorbs solar energy through photovoltaic modules and converts it into electrical energy, and its power generation is related to the rated capacity of the photovoltaic panels and the local solar radiation intensity. By combining or operating alone the wind turbine 1121 and the photovoltaic device 1122, the energy supply module 112 can flexibly adjust the power supply according to the fluctuation characteristics of renewable energy, providing electrical energy guarantee for the stable operation of the hydrogen production module. The energy supply module 112 reduces the carbon emissions in the hydrogen production process by using the characteristics of renewable energy power generation, improves the energy utilization efficiency, and demonstrates the advantages of green and low-carbon.

[0044] Optionally, as Figure 2 shown, the energy supply module 112 further includes a storage battery 1123.

[0045] In some embodiments of the present application, by using the storage battery 1123 provided in the energy supply module 112 as an energy storage device, it is possible to store energy when there is excess renewable electrical energy and release energy when there is a demand for renewable electrical energy, providing flexible energy allocation capabilities for the system. The storage battery 1123, as an energy storage device, can smooth the output of electrical energy when the wind and solar energy fluctuate greatly, ensuring the continuous power supply capacity of the hydrogen production module 112 and meeting the dynamic load requirements.

[0046] Optionally, as Figure 3 shown, the organic liquid dehydrogenation system 10 is an organic liquid dehydrogenation system based on the application scenario of a hydrogen refueling station.

[0047] The organic liquid dehydrogenation system based on the application scenario of a hydrogen refueling station at least includes:

[0048] a hydrogen-rich storage tank receiving module 101, a dehydrogenation module 102, a hydrogen storage module 103, a hydrogen refueling equipment module 104, and a lean hydrogen storage tank shipping module 105;

[0049] The hydrogen-rich storage tank receiving module 101 is used to receive the hydrogen-rich storage tank Y from the hydrogen-rich storage tank shipping module 115;

[0050] The dehydrogenation module 102 is used to dehydrogenate the hydrogen-rich organic liquid stored in the hydrogen-rich storage tank Y to obtain hydrogen gas and lean hydrogen organic liquid;

[0051] The lean hydrogen storage tank shipping module 105 is used to store the lean hydrogen organic liquid generated by the dehydrogenation module and transport the lean hydrogen storage tank X storing the lean hydrogen organic liquid to the lean hydrogen storage tank receiving module 111;

[0052] The hydrogen storage module 103 is used to store the hydrogen gas obtained through dehydrogenation treatment;

[0053] The hydrogenation equipment 104 module is used to input the hydrogen gas stored in the hydrogen storage module 103 into the hydrogen-consuming equipment A.

[0054] The above structure ensures the recycling of the organic liquid storage tank by utilizing the efficient transportation and receiving process of the hydrogen-rich storage tank, improves the utilization efficiency of the storage tank, reduces resource waste, and at the same time realizes the efficient flow of resources within the system through the return transportation of the hydrogen-free storage tank, further promoting the collaborative optimization of the entire hydrogen refueling station system, establishing a cyclic transportation mechanism for the storage tank between the hydrogen production end and the hydrogen refueling station, meeting dynamic demands, and optimizing the hydrogen storage efficiency after dehydrogenation; finally, the hydrogen gas stored in the hydrogen storage module is input into the hydrogen-consuming equipment, effectively realizing the full-process docking of hydrogen gas from chemical storage to actual use. Thus, based on the method of the embodiment of the present application, by introducing a storage tank cyclic transportation mechanism, the utilization rate of the storage tank is fundamentally improved, resource waste is reduced, a hydrogen refueling station system based on organic liquid dehydrogenation is constructed, the limitation of the traditional hydrogen refueling station relying on a single equipment design is solved, the dehydrogenation reaction efficiency and the full-process design of hydrogen storage and use are optimized, and the problems of low utilization rate of the hydrogen refueling station storage tank and large resource waste are solved.

[0055] As Figure 4 shown, based on the organic liquid hydrogen storage system for hydrogen production from renewable energy disclosed in the present application, the embodiment of the present application also discloses an optimization method for an organic liquid hydrogen storage system for hydrogen production from renewable energy.

[0056] The method may include the following steps:

[0057] Step 211, establish a parameter optimization model constrained by the influence conditions of environmental changes on renewable energy power generation according to a coupled physical model for characterizing the process of transferring hydrogen-rich storage tanks and hydrogen-poor storage tanks between the organic liquid hydrogen storage system and the organic liquid dehydrogenation system.

[0058] In some embodiments of the present application, in order to construct a parameter optimization model constrained by the influence conditions of environmental changes on renewable energy power generation during the storage tank transfer process between the organic liquid hydrogen storage system and the organic liquid dehydrogenation system, so as to improve the adaptability of the system to the volatility of wind energy and photovoltaic power, a parameter optimization model will be established based on the coupled physical model describing the transfer process between the hydrogen-rich storage tank and the hydrogen-poor storage tank. This optimization model takes the dynamic changes on the renewable energy power generation side as the constraint conditions, combines the storage tank transfer law and the energy scheduling requirements, and optimizes and models the relevant design parameters in the system. The "coupled physical model" is used to describe the material flow relationship of the storage tank cyclic transportation between the hydrogen storage and dehydrogenation systems. It combines the storage tank capacity, transportation time and system load demand to ensure the material balance during the transmission process. The "parameter optimization model" establishes a mathematical expression based on the optimization objective and system constraint conditions, and can comprehensively consider the impact of environmental changes on the power generation capacity, so that the hydrogen storage and dehydrogenation processes can adapt to dynamic load conditions. By establishing the parameter optimization model in this way, the system can optimize the storage tank capacity, transportation strategy and hydrogenation and dehydrogenation processes under the condition of renewable energy power generation fluctuations, realize the reasonable allocation between hydrogen energy supply and demand, improve the operation stability of the system, and at the same time reduce the problems of low storage tank utilization rate and resource waste.

[0059] In a specific example, during the optimization design process of a wind-solar power-to-hydrogen system and an urban hydrogen refueling station, a coupled physical model of the storage tank transfer process can be first constructed based on the changes in wind speed and solar radiation intensity, and a parameter optimization model constrained by environmental changes can be established in combination with the dynamic fluctuations on the wind-solar power generation side. For example, the transportation frequency of the storage tank, the receiving time window of the hydrogen-poor storage tank and the delivery strategy of the hydrogen-rich storage tank can be optimized according to the wind-solar power generation volatility, so as to make the hydrogen energy supply and demand scheduling more adaptable. The optimized hydrogen storage system can dynamically adjust the storage tank transportation plan, so that the wind-solar power generation fluctuations will not affect the stability of hydrogen energy supply, and at the same time reduce the resource waste caused by the idle storage tank during the storage process. This optimization strategy improves the economy and operation efficiency of the system.

[0060] Step 212, solve the parameter optimization model to obtain multiple hydrogen storage design parameter values of the organic liquid hydrogen storage system based on renewable energy hydrogen production.

[0061] In some embodiments of the present application, in order to determine multiple hydrogen storage design parameter values of an organic liquid hydrogen storage system based on renewable energy hydrogen production by solving a parameter optimization model, thereby optimizing the system configuration and improving the hydrogen storage efficiency and resource utilization rate. The process of executing this step includes: based on the dynamic change constraints on the renewable energy power generation side, using an optimization algorithm to solve the parameter optimization model to obtain multiple hydrogen storage design parameter values, which are used to determine system key variables such as the storage tank capacity, hydrogenation reaction rate, and storage tank circulation transportation strategy. The hydrogen storage design parameter values obtained by solving the parameter optimization model in this way can match the volatility of wind and solar power generation, improve the flexibility of storage tank scheduling, and ensure the stable operation of the system under different load conditions; at the same time, the optimized parameters can reduce resource waste and improve the overall efficiency of hydrogen energy storage and supply.

[0062] In a specific example, in a hydrogen refueling station design project based on wind and solar power generation, a parameter optimization model is constructed based on wind and solar power generation prediction data, and the annualized total cost minimization is used as the optimization goal. The dynamic constraints on the wind and solar power generation side are input into the optimization algorithm, and key parameter values such as the storage tank capacity, the flow rate range of the hydrogenation reactor, and the storage tank transportation cycle are obtained by solving. The hydrogen storage design parameter values optimized in this way ensure that the hydrogen storage system can adapt to the fluctuations of wind and solar power generation, achieve economical and efficient hydrogen energy storage and supply, while improving the utilization rate of the storage tank and reducing the loss of idle resources.

[0063] Step 213, configure an organic liquid hydrogen storage system based on renewable energy hydrogen production according to the obtained multiple hydrogen storage design parameter values to obtain an optimized organic liquid hydrogen storage system based on renewable energy hydrogen production.

[0064] In some embodiments of the present application, in order to configure an organic liquid hydrogen storage system based on renewable energy hydrogen production according to the multiple hydrogen storage design parameter values obtained by solving, so that it can operate optimally under dynamic power input conditions, and improve the adaptability and resource utilization efficiency of the hydrogen storage system. The "hydrogen storage design parameter values" are system configuration variables obtained by solving the parameter optimization model, including key parameters such as the storage tank capacity, hydrogenation rate, and tanker transportation frequency. These optimized parameters can ensure that the hydrogen storage system can still operate efficiently when the power supply on the wind and solar power generation side is unstable, while improving the utilization rate of the storage tank resources. The optimized hydrogen storage system can adapt to the volatility of renewable energy, ensure the stability of hydrogen energy supply, and reduce the energy loss in the hydrogen storage link; in addition, by reasonably configuring the storage tank transportation and hydrogenation strategies, hydrogen energy can be efficiently stored and released under different load conditions, thereby improving the economy and operation reliability of the system.

[0065] In a specific example, in the design of a renewable energy hydrogen production system that combines wind power generation and photovoltaic power generation, the hydrogen production module will be reconfigured according to the obtained hydrogen storage design parameters such as the storage tank capacity, the receiving cycle of the lean hydrogen storage tank, and the delivery frequency of the rich hydrogen storage tank, the input power of the electrolyzer will be adjusted, and the capacity distribution of the storage tank will be optimized. The optimized hydrogen storage system can operate efficiently under the condition of fluctuating wind and solar power generation, while ensuring the timely transportation of the rich hydrogen storage tank and the stable recovery of the lean hydrogen storage tank, ultimately improving the efficiency of the overall hydrogen energy supply chain and reducing resource waste and operating costs.

[0066] As Figure 5 shown, it is another optimization method for an organic liquid hydrogen storage system based on renewable energy hydrogen production disclosed in the embodiments of the present application, which specifically includes the following steps:

[0067] Step 311, establish a coupled physical model according to the transfer process of the rich hydrogen storage tank and the lean hydrogen storage tank.

[0068] In some embodiments of the present application, in order to establish a mathematical description of the transfer process between the rich hydrogen storage tank and the lean hydrogen storage tank in the hydrogen storage system and the dehydrogenation system, so as to quantify the material flow relationship between the two systems and provide data support for subsequent optimization. A coupled physical model will be established based on the flow characteristics of the rich hydrogen storage tank and the lean hydrogen storage tank. This model is used to characterize the dynamic interaction relationship between the storage tank in the hydrogen production system and the hydrogen refueling station, and a mathematical expression is constructed in combination with the capacity constraint, transportation frequency of the storage tank and the hydrogen supply-demand balance. In this way, by establishing a coupled physical model, the dynamic balance of material flow is realized in the hydrogen energy storage and release links of the storage tank, the utilization rate of the storage tank is improved, and the collaborative operation mechanism of hydrogen storage and dehydrogenation processes is optimized, thereby enhancing the economy and operation stability of the system.

[0069] In a specific example, in the design of a hydrogen production and hydrogen refueling system that combines wind power generation and photovoltaic power generation, according to the changes in wind speed and solar radiation, a mathematical description of the flow between the rich hydrogen storage tank and the lean hydrogen storage tank in the two systems is established, and in combination with the dynamic demand of the hydrogen refueling station, the transportation time window and material flow constraint of the storage tank are constructed. In this way, a storage tank flow relationship model will be established with the storage tank capacity, tanker transportation frequency and hydrogen refueling station demand fluctuation as variables, and the supply-demand matching ability in the system will be verified.

[0070] Step 312, take the energy supply quantization relationship formed by the impact of environmental changes on renewable energy as the constraint condition of the coupled physical model, and establish a parameter optimization model under the preset optimization goal.

[0071] In some embodiments of the present application, in order to construct a parameter optimization model that can dynamically adapt to the fluctuations of renewable energy supply and take into account the impact of environmental changes on wind energy and photovoltaic power generation capabilities during system optimization, the energy supply quantization relationship formed by the impact of environmental changes on the power supply capacity of renewable energy is used as a constraint condition for the coupled physical model. Based on this, a parameter optimization model is established. This optimization model combines the uncertainty on the renewable energy power supply side, the material flow law of the storage tank, and the hydrogen energy supply-demand matching relationship to optimize the design parameters of the hydrogen storage system. In this way, through the constraint of the impact of environmental changes on renewable energy power generation capabilities, the optimization model can fully consider the instability of wind and photovoltaic power generation, improve the adaptability of the hydrogen storage system to energy supply changes, ensure a more reasonable match between hydrogen energy supply and demand, optimize the operating efficiency of the hydrogen storage system, and reduce resource waste.

[0072] In a specific example, in an optimization design project of a wind-solar power generation hydrogen production system and an urban hydrogen refueling station, wind speed, solar radiation intensity, and temperature data can be collected, and an energy supply quantization relationship can be constructed and used as a constraint condition for the coupled physical model. The change in wind-solar power generation power is calculated based on real-time meteorological data, and the hydrogen refueling rate and storage tank capacity of the hydrogen storage system are constrained in the optimization model to ensure stable hydrogen supply under different power generation conditions. The optimized hydrogen storage system in this way can adapt to the changes in wind-solar power generation, avoid problems such as insufficient hydrogen supply or resource idleness caused by power generation fluctuations, improve the utilization efficiency of the storage tank at the same time, and optimize the hydrogen storage and scheduling strategy to improve the overall economy and reliability of the system.

[0073] Step 313: Solve the parameter optimization model to obtain multiple hydrogen storage design parameter values for the organic liquid hydrogen storage system based on renewable energy hydrogen production.

[0074] The method shown in this step has been described in step 212 and will not be elaborated here.

[0075] Step 314: Configure the organic liquid hydrogen storage system based on renewable energy hydrogen production according to the obtained multiple hydrogen storage design parameter values to obtain an optimized organic liquid hydrogen storage system based on renewable energy hydrogen production.

[0076] The method shown in this step has been described in step 213 and will not be elaborated here.

[0077] Under the coupled design of the above-mentioned hydrogen refueling station system 10 based on organic liquid dehydrogenation and the organic liquid hydrogen storage system 11 based on renewable energy hydrogen production, the parameter optimization model is specifically constrained in the following manner:

[0078] Considering the goal of minimizing the annualized total cost of the system of coupling wind-solar power generation with an organic liquid hydrogen storage and refueling station to optimize the system.

[0079] Optionally, when the optimization objective of the parameter optimization model is to minimize the total cost , it is characterized by the following formula:

[0080] ,

[0081] where is the total construction and maintenance cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system, is the total site cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system, is the total labor cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system, is the total energy consumption cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system.

[0082] Optionally, it is characterized by the following formula:

[0083] ,

[0084] where is the total equipment investment cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system; is the total equipment energy consumption cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system; is the total equipment operation and maintenance cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system.

[0085] Optionally, it is characterized by the following formula:

[0086] ,

[0087] where is the investment cost of the fan, is the investment cost of the photovoltaic equipment, is the investment cost of the energy storage battery, is the investment cost of the hydrogen production module, is the investment cost of the reactor of the hydrogenation module, is the investment cost of the reactor of the dehydrogenation module, is the investment cost of the hydrogen-rich storage tank, is the investment cost of the hydrogen-lean storage tank, is the investment cost of the gas pressure compression device of the hydrogen storage module, is the investment cost of the hydrogen storage tank of the hydrogen storage module, is the investment cost of the hydrogenation equipment module;

[0088] where the investment cost of each equipment is characterized by the following formula:

[0089] ,

[0090] wherein ,

[0091] i represents each device: i = WT, PV, BESS, ELE, HR, DR, HST, DST, COM, HT, HD, is the unit cost of device i; is the rated capacity of device i, is the annualization factor of device i, l i is the expected life of device i, and r is the interest rate.

[0092] Optionally, when the hydrogen storage module of the organic liquid dehydrogenation system includes multiple hydrogen storage tanks, the hydrogenation equipment module of the organic liquid dehydrogenation system includes multiple hydrogenation machines, and the gas pressure compression device of the organic liquid dehydrogenation system includes a first compressor for connecting to the hydrogen storage module, multiple third compressors for respectively connecting to the hydrogen storage module, and a second compressor for connecting the first compressor and the third compressors, is characterized by the following formula:

[0093] ,

[0094] wherein, is the investment cost of the first compressor, is the investment cost of the second compressor, is the investment cost of each third compressor, is the number of third compressors, is the annualization factor of the gas pressure compression device;

[0095] is calculated by the following formula:

[0096] ,

[0097] wherein, is the investment cost of each hydrogen storage tank, is the number of hydrogen storage tanks, is the annualization factor of the hydrogen storage tank;

[0098] is calculated by the following formula:

[0099] ,

[0100] wherein, is the investment cost of each hydrogenation machine, is the number of hydrogenation machines, is the annualization factor of the hydrogen refueling machine.

[0101] Optionally, in the case where the gas pressure compression device of the organic liquid dehydrogenation system includes a first compressor for connecting with the hydrogen storage module, a plurality of third compressors for respectively connecting with the hydrogen storage module, and a second compressor for connecting the first compressor and the third compressor, It is calculated by the following formula:

[0102] ,

[0103] where, is the unit electricity price, is the rated power of the first compressor, is the rated power of the second compressor, is the rated power of the third compressor.

[0104] Optionally, It is characterized by the following formula:

[0105] ,

[0106] where, is the maintenance cost factor.

[0107] Optionally, in the case where the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production includes a fan and a photovoltaic device, the parameter optimization model includes a wind-solar power sub-model for characterizing the relationship between the output power of the energy supply module and the fan and the photovoltaic device. The wind-solar power sub-model includes the following constraint formulas:

[0108] ,

[0109] where, represents the total power generation of the energy supply module in the k-th time period, represents the power generation of the fan in the k-th time period; represents the power generation of the photovoltaic device in the k-th time period.

[0110] Optionally, It is also constrained by the average power generation formula of the fan:

[0111] ,

[0112] where is the capacity factor of wind power generation, indicating the electric power that can be generated by a wind turbine with a rated power of 1kW, which is determined by the local meteorological conditions; is the rated power of the wind turbine.

[0113] Optionally, It is also constrained by the average power generation formula of the photovoltaic device;

[0114] ,

[0115] where is the capacity factor of photovoltaic power generation; is the rated power of the photovoltaic panel.

[0116] Optionally, when the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production further includes an energy storage battery, at this time, the renewable energy power generation system can supply the hydrogen production module and the energy storage battery, or discard electricity. The wind and solar power generation sub-model also includes a battery energy storage sub-model between the hydrogen production module and the battery energy storage system. The battery energy storage sub-model includes the following constraint formula:

[0117] ;

[0118] where, represents the output power of the energy supply module to the hydrogen production module in the k-th time period, represents the output power of the energy supply module to the energy storage battery in the k-th time period, represents the discarded power of the energy supply module in the k-th time period.

[0119] Optionally, when the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production includes a power generation device and an energy storage battery, the parameter optimization model includes an electrolyzer sub-model for characterizing the input power of the hydrogen production module of the organic liquid hydrogen storage system based on renewable energy hydrogen production. The electrolyzer sub-model includes the following constraint formula:

[0120] ,

[0121] where, is the input power of the hydrogen production module in the k-th time period; is the output power of the power generation device in the k-th time period; is the output power of the energy storage battery in the k-th time period.

[0122] Optionally, it is also constrained by the flow rate relationship formula between the hydrogen production module and the hydrogen addition module:

[0123] ;

[0124] where, is the flow rate of the hydrogen produced by the hydrogen production module to the hydrogen addition module; is the electro-hydrogen conversion value of the hydrogen production module.

[0125] Optionally, it is also constrained by the start-stop condition relationship formula for the hydrogen production module:

[0126] ;

[0127] Wherein, is the rated capacity of the hydrogen production module; is the lower limit of the operating power of the hydrogen production module.

[0128] Optionally, in the case where the energy supply module of the organic liquid hydrogen storage system for hydrogen production based on renewable energy includes a power generation device and an energy storage battery, the parameter optimization model includes a battery energy storage sub-model for characterizing the charge and discharge process of the energy storage battery. The battery energy storage sub-model includes the following constraint formulas:

[0129] The charging power of the energy storage battery and the input power of the power generation device to the energy storage battery are constrained by the following formula:

[0130] ,

[0131] Wherein, is the charging efficiency of the energy storage battery;

[0132] The discharging power of the energy storage battery and the input power of the energy storage battery to the hydrogen production module are constrained by the following formula:

[0133] ,

[0134] Wherein, is the discharging efficiency of the energy storage battery.

[0135] Optionally, the relationship between the power of the energy storage battery at the end of the k-th time period and the power at the end of the (k + 1)-th time period is constrained by the following formula:

[0136] ,

[0137] Wherein, represents the time interval from the end of the k-th time period to the end of the (k + 1)-th time period.

[0138] Optionally, is also subject to the battery capacity formula constraint for the energy storage battery:

[0139] ,

[0140] Wherein, is the rated capacity of the energy storage battery; is the minimum state of charge of the energy storage battery, is the maximum state of charge of the energy storage battery.

[0141] Optionally, and is also subject to the power limit formula for the energy storage battery:

[0142] ,

[0143] ,

[0144] ,

[0145] wherein, is the maximum power for charging and discharging the energy storage battery, and are binary variables that are mutually constrained, when, it means the energy storage battery is in the charging state, when, it means the energy storage battery is in the discharging state.

[0146] Optionally, the parameter optimization model includes an organic liquid hydrogen storage sub-model for characterizing the hydrogenation process of the hydrogenation module. The organic liquid hydrogen storage sub-model includes the following constraint formulas:

[0147] The volume of the hydrogenation reactor of the hydrogenation module is constrained by the following formula:

[0148] ,

[0149] wherein, a1 is the fitting parameter between the molar flow rate of the hydrogen inlet and the volume of the hydrogenation reactor during the hydrogenation process; is the flow rate of hydrogen generated by the hydrogen production module; is the hydrogenation reaction conversion rate when the hydrogen storage medium reacts with hydrogen in the hydrogenation reactor; is the relative molecular mass of hydrogen;

[0150] The molar flow rate of hydrogen in the hydrogenation reaction is constrained by the following formula:

[0151] ;

[0152] The flow rate of the lean hydrogen organic liquid (LOHC - ) in the lean hydrogen storage tank flowing into the hydrogenation reactor of the hydrogenation module is constrained by the following formula:

[0153] ,

[0154] wherein, is the relative molecular mass of the lean hydrogen organic liquid, is the ratio of the molar amount between hydrogen and hydrogen - poor organic liquid in the reaction equation of the hydrogenation reaction; is the molar flow rate of hydrogen in the hydrogenation reaction;

[0155] The flow rate of the hydrogen - rich organic liquid flowing into the hydrogen - rich storage tank is restricted by the following formula:

[0156] ,

[0157] where, is the relative molecular mass of the hydrogen - rich organic liquid, is the ratio of the molar amount between hydrogen and hydrogen - rich organic liquid in the reaction equation of the hydrogenation reaction; is the molar flow rate of hydrogen in the hydrogenation reaction.

[0158] Optionally, for the volume of the reactor of the hydrogenation module formed by window operation is restricted by the following formula:

[0159] ;

[0160] where, is the lower limit of the operation window of the reactor of the hydrogenation module, is the upper limit of the operation window of the reactor of the hydrogenation module; is the rated capacity of the reactor of the hydrogenation module.

[0161] Optionally, the parameter optimization model includes a hydrogenation process organic liquid storage tank sub - model used to characterize the influence of the hydrogenation process on the transfer process of the hydrogen - rich storage tank. The hydrogenation process organic liquid storage tank sub - model includes the following constraint formula:

[0162] The time interval from the end of the k - th time period to the end of the (k + 1)-th time period of the hydrogen - rich storage tank on the hydrogen storage system side The organic liquid balance in

[0163] ,

[0164] where, is the mass of the hydrogen - rich organic liquid in the hydrogen - rich storage tank at the end of the k - th time period, is the mass of the hydrogen - rich organic liquid in the hydrogen - rich storage tank at the end of the (k + 1)-th time period.

[0165] Optionally, the mass of the hydrogen - rich organic liquid in the hydrogen - rich storage tank is also restricted by the following formula to characterize that the initial and final capacities of the hydrogen - rich storage tank are equal during the operation cycle (usually 1 day):

[0166] ;

[0167] It is also constrained by the following formula according to the capacity of the hydrogen-rich storage tank:

[0168] ,

[0169] wherein, is the rated capacity of the hydrogen-rich storage tank; is the minimum storage state parameter of the hydrogen-rich storage tank, is the maximum storage state parameter of the hydrogen-rich storage tank.

[0170] Among them, the storage state parameter is used to characterize the ratio of the organic liquid storage amount in the storage tank to the rated storage amount of the storage tank.

[0171] Optionally, the parameter optimization model includes a sub-model of the organic liquid storage tank for the hydrogenation process, which is used to characterize the influence of the hydrogenation process on the transfer process of the hydrogen-deficient storage tank. The sub-model of the organic liquid storage tank for the hydrogenation process includes the following constraint formula:

[0172] The time interval from the end of the k-th time period to the end of the (k + 1)-th time period of the hydrogen-deficient storage tank on the hydrogen storage system side The organic liquid balance in is constrained by the following formula:

[0173] ,

[0174] wherein, is the mass of the hydrogen-rich organic liquid in the hydrogen-deficient storage tank at the end of the k-th time period, is the mass of the hydrogen-rich organic liquid in the hydrogen-deficient storage tank at the end of the (k + 1)-th time period.

[0175] Optionally, It is also constrained by the following formula according to the capacity of the hydrogen-deficient storage tank:

[0176] ;

[0177] wherein, is the rated capacity of the hydrogen-deficient storage tank; represents the minimum storage state parameter of the hydrogen-deficient storage tank, represents the maximum storage state parameter of the hydrogen-deficient storage tank.

[0178] Optionally, the parameter optimization model includes a sub-model of the organic liquid dehydrogenation for the dehydrogenation process, which is used to characterize the dehydrogenation process. The sub-model of the organic liquid dehydrogenation includes the following constraint formula:

[0179] The volume of the reactor of the dehydrogenation module is constrained by the following formula:

[0180] ,

[0181] Among them, a2 is the fitting parameter between the molar flow rate of the hydrogen inlet and the reactor volume of the dehydrogenation module during the dehydrogenation process; is the flow rate when the hydrogen-rich organic liquid in the hydrogen-rich storage tank enters the reactor of the dehydrogenation module; is the conversion rate of the dehydrogenation reaction; is the relative molecular mass of the hydrogen-rich organic liquid;

[0182] The molar flow rate of the hydrogen-rich organic liquid in the dehydrogenation reaction is constrained by the following formula:

[0183] ;

[0184] The flow rate of hydrogen generated in the dehydrogenation reaction is constrained by the following formula:

[0185] ,

[0186] Among them, is the relative molecular mass of hydrogen, is the ratio of the molar amounts between hydrogen and the hydrogen-rich organic liquid in the reaction equation of the dehydrogenation reaction;

[0187] The flow rate of the hydrogen-depleted organic liquid generated in the dehydrogenation reaction is constrained by the following formula:

[0188] ,

[0189] Among them, is the relative molecular mass of the hydrogen-depleted organic liquid, is the ratio of the molar amounts between the hydrogen-depleted organic liquid and the hydrogen-rich organic liquid in the reaction equation of the dehydrogenation reaction.

[0190] Optionally, formed by window operation, the reactor volume of the dehydrogenation module is constrained by the following formula:

[0191] ;

[0192] Among them, is the lower limit of the operation window of the reactor of the dehydrogenation module, is the upper limit of the operation window of the reactor of the dehydrogenation module; is the rated capacity of the reactor of the dehydrogenation module.

[0193] Optionally, the parameter optimization model includes a sub-model of the organic liquid storage tank in the hydrogen release process of the hydrogenation station organic liquid, which is used to characterize the influence of the dehydrogenation process on the transfer process of the hydrogen-rich storage tank. The sub-model of the organic liquid storage tank in the hydrogen release process of the hydrogenation station organic liquid includes the following constraint formulas:

[0194] The time interval from the end of the k-th time period to the end of the (k + 1)-th time period for the hydrogen-rich storage tank on the hydrogen refueling station side The organic liquid balance in it is constrained by the following formula:

[0195] ,

[0196] where, is the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the k-th time period, is the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the (k + 1)-th time period;

[0197] It is also constrained by the following formula according to the capacity of the hydrogen-rich storage tank:

[0198] ,

[0199] where, is the rated capacity of the hydrogen-rich storage tank; is the minimum storage state parameter of the hydrogen-rich storage tank, is the maximum storage state parameter of the hydrogen-rich storage tank.

[0200] Optionally, the parameter optimization model includes a sub-model of the organic liquid storage tank in the hydrogen evolution process of the hydrogen refueling station, which is used to characterize the influence of the dehydrogenation process on the transfer process of the hydrogen-deficient storage tank. The sub-model of the organic liquid storage tank in the hydrogen evolution process of the hydrogen refueling station includes the following constraint formulas:

[0201] The time interval from the end of the k-th time period to the end of the (k + 1)-th time period for the hydrogen-deficient storage tank on the hydrogen refueling station side The organic liquid balance in it is constrained by the following formula:

[0202] ,

[0203] where, is the mass of the hydrogen-deficient organic liquid in the hydrogen-deficient storage tank at the end of the k-th time period, is the mass of the hydrogen-deficient organic liquid in the hydrogen-deficient storage tank at the end of the (k + 1)-th time period;

[0204] It is also constrained by the following formula according to the capacity of the hydrogen-deficient storage tank:

[0205] ;

[0206] where, is the rated capacity of the hydrogen-deficient storage tank, represents the minimum storage state parameter of the hydrogen-deficient storage tank, represents the maximum storage state parameter of the hydrogen-deficient storage tank.

[0207] Optionally, the parameter optimization model includes a hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of the hydrogen storage module delivering hydrogen to the hydrogen refueling equipment module. The hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas:

[0208] The time interval from the end of the k-th time period to the end of the k+1-th time period of the hydrogen buffer tank The hydrogen balance in is constrained by the following formula:

[0209] ,

[0210] ,

[0211] Wherein, is the hydrogen quantity in the hydrogen buffer tank at the end of the k-th time period, is the hydrogen quantity in the hydrogen buffer tank at the end of the k+1-th time period, is the flow rate of the hydrogen generated by the reactor of the dehydrogenation module entering the hydrogen buffer tank, is the flow rate of the hydrogen in the hydrogen buffer tank entering the gas pressure compression device of the hydrogen storage module, is the rated capacity of the hydrogen storage bottle group, represents the minimum storage state parameter of the hydrogen buffer tank, represents the maximum storage state parameter of the hydrogen buffer tank.

[0212] Optionally, the parameter optimization model includes a hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of the hydrogen storage module delivering hydrogen to the hydrogen refueling equipment module. The hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas:

[0213] When the hydrogen in the hydrogen buffer tank passes through the first compressor, the second compressor, and the third compressor connected in series and is input into the hydrogen storage tank through multi-stage compression, the power of the first compressor , the power of the second compressor , the power of the third compressor are respectively constrained by the following formulas:

[0214] ,

[0215] ,

[0216] ,

[0217] Wherein, is the specific heat capacity at constant pressure, is the temperature of the compressor, is the efficiency of the compressor, is the specific heat ratio; is the molar flow rate of hydrogen in the compressor, is the pressure of hydrogen in the hydrogen buffer tank, is the output pressure of the first compressor to the second compressor, is the output pressure of the second compressor to the third compressor, is the pressure of the third compressor output to the hydrogen storage tank;

[0218] According to for unit conversion of is also subject to the following formula:

[0219] ;

[0220] According to the upper and lower limits of the flow rate in the compressor, is also subject to the following formula:

[0221] ,

[0222] wherein, is the minimum value of the compressor flow rate, is the maximum value of the compressor flow rate;

[0223] According to the maximum value of the third compressor flow rate , is also subject to the following formula:

[0224] ,

[0225] wherein, is the number of the third compressors;

[0226] According to the pressure relationship between two stages of the compressor, is also subject to the following formula:

[0227] ;

[0228] According to the hydrogen passing through the compressor is stored in the hydrogen storage tank, is also subject to the following formula:

[0229] ;

[0230] The power of the first compressor and the power of the second compressor are also subject to the following formula:

[0231] ,

[0232] ,

[0233] Among them, is the rated power of the first compressor, is the rated power of the second compressor;

[0234] When the first compressor has an investment cost , and the second compressor has an investment cost under the constraint, and is also subject to the following formula constraints:

[0235] ,

[0236] ,

[0237] Among them, and are the investment cost coefficients of the compressor respectively.

[0238] Optionally, the parameter optimization model includes a hydrogen refueling station compression hydrogen storage and hydrogen demand sub-model for characterizing the process of the hydrogen storage module delivering hydrogen to the hydrogen refueling equipment module. The hydrogen refueling station compression hydrogen storage and hydrogen demand sub-model includes the following constraint formulas:

[0239] The hydrogen balance in the hydrogen storage tank of the hydrogen storage module from the end of the k-th time period to the end of the k+1-th time period is subject to the following formula constraints:

[0240] ,

[0241] Among them, is the hydrogen quantity in the hydrogen storage tank at the end of the k-th time period, is the hydrogen quantity in the hydrogen storage tank at the end of the k+1-th time period, is the flow rate of hydrogen from the gas pressure compression device of the hydrogen storage module into the hydrogen storage tank, is the flow rate of hydrogen in the hydrogen storage tank into the hydrogen refueling equipment module;

[0242] The hydrogen gas state in the hydrogen storage tank is subject to the following formula constraints:

[0243] ,

[0244] Among them, P is the hydrogen pressure, V is the hydrogen volume, is the gas constant, m is the hydrogen mass, Z is the compression factor, and T is the hydrogen temperature;

[0245] is calculated according to the following formula:

[0246] ,

[0247] Among them, is the hydrogen density, , , are respectively fitting parameters; here, represents the ratio of 100 Kelvin to the absolute temperature, represents the ratio of the hydrogen density to 1 MPa, , , and and are all dimensionless quantities.

[0248] According to the safety pressure limit of the hydrogen storage tank, the hydrogen gas pressure in the hydrogen storage tank is restricted by the following formula:

[0249] ,

[0250] Among them, is the minimum safety pressure of the hydrogen storage tank, is the maximum safety pressure of the hydrogen storage tank;

[0251] It is also restricted by the following formula according to the capacity of the hydrogen storage tank:

[0252] ,

[0253] Among them, is the rated capacity of the hydrogen storage tank, represents the minimum storage state parameter of the hydrogen storage tank, represents the maximum storage state parameter of the hydrogen storage tank;

[0254] The hydrogen amount in the hydrogen storage tank is also restricted by the following formula to characterize that the initial and final hydrogen amounts in the hydrogen storage tank are equal during the operation period (usually 1 day):

[0255] .

[0256] Optionally, the parameter optimization model includes a hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of the hydrogen storage module delivering hydrogen to the hydrogen refueling equipment module. The hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas:

[0257] According to the fact that the hydrogen of the hydrogen refueling machine comes from the hydrogen storage tank, the flow rate of the hydrogen refueling machine is restricted by the following formula:

[0258] ,

[0259] Among them, is the flow rate of the hydrogen in the hydrogen storage tank entering the hydrogen refueling equipment module;

[0260] In the case where the hydrogenation equipment module includes multiple hydrogenators, affected by the rated flow rate limit of the hydrogen storage tank, It is also restricted by the following formula:

[0261] ;

[0262] wherein, is the lower limit of the flow rate of the hydrogenator, is the upper limit of the flow rate of the hydrogenator, is the number of hydrogenators.

[0263] In summary, in the embodiment of the present application, by setting up the lean hydrogen storage tank receiving module, the lean hydrogen organic liquid storage tank that can still be recycled after dehydrogenation can be effectively recovered and re-entered into the hydrogen storage system to reduce the waste of storage tank resources and improve the operating efficiency of the hydrogen storage system. Through the hydrogenation module, the lean hydrogen organic liquid is hydrogenated, so that the organic liquid in the hydrogen-free state can be converted into a hydrogen-rich state, realizing the safe storage of hydrogen and enhancing the circulation ability of the storage tank between the hydrogen production system and the hydrogenation system. At the same time, by directly supplying power to the hydrogen production module through the power supply module, the hydrogen production process is closely coupled with the renewable energy power generation side, so as to use the variable electric energy generated by wind energy and solar photovoltaic power generation for electrolytic hydrogen production, improve the energy utilization rate, and avoid the efficiency loss caused by unstable power supply during the hydrogen production process. Finally, the hydrogen-rich storage tank transportation module transports the hydrogenated hydrogen-rich organic liquid storage tank to the dehydrogenation system, so that the storage and release of hydrogen energy can be flexibly adjusted according to the load changes at the user end, thereby improving the supply-demand matching ability of hydrogen energy and effectively alleviating the mismatch problem between the volatility of wind and solar power generation and the demand changes at the user end. Thus, the embodiment of the present application constructs an organic liquid hydrogen storage system based on renewable energy hydrogen production, uses the closed-loop circulation mechanism of the storage tank to optimize the connection relationship between the hydrogen production and hydrogen storage processes, while improving the resource utilization efficiency, ensuring the adaptability to the power fluctuations on the wind and solar power generation side, and providing a dynamic adjustment mechanism for the load fluctuations at the user end. This system design effectively solves the problem of insufficient supply-demand allocation between the output changes on the wind and solar power generation side and the load fluctuations at the user end in the prior art, and at the same time reduces the phenomenon of low utilization rate of storage tanks and large resource waste during the hydrogen storage process, providing an innovative solution for the efficient operation of the renewable energy hydrogen production system.

[0264] As Figure 6 shown, it is a complete planning process provided according to the embodiment of the present application:

[0265] S1, Construction of the system structure of an organic liquid hydrogen storage and hydrogenation station based on renewable energy hydrogen production: According to the design and operation processes of renewable energy hydrogen production and storage, organic liquid hydrogen storage and dehydrogenation, and hydrogenation stations, construct the superstructure model of the entire system. This step aims to clarify the core modules of the system and their interaction relationships, providing a basis for subsequent modeling and optimization;

[0266] S2, Construction of the system economic optimization objective:

[0267] Comprehensively consider the investment cost and operating cost of equipment, construct the system economic optimization objective, clarify the optimization direction with the minimum total cost as the goal, and provide a basis for subsequent model optimization;

[0268] S3, Modeling of the renewable energy hydrogen production and storage system: For modules such as wind and solar power generation, electrolyzers, battery energy storage, organic liquid hydrogenation reactors, and storage tanks, establish mathematical models respectively, and focus on analyzing the dynamic coupling characteristics between the power generation side and the hydrogen storage system;

[0269] S4, Modeling of the dehydrogenation system and compressed hydrogen storage system of the hydrogenation station: Construct the organic liquid dehydrogenation module, compressor, hydrogen storage bottle group, and hydrogen demand model in the hydrogenation station to ensure that the hydrogenation station can meet the dynamic hydrogen demand, while ensuring the efficiency and safety of the dehydrogenation process and the operation of the storage tank;

[0270] S5, Solution and result analysis of the system optimization model of the organic liquid hydrogen storage and hydrogenation station: Based on the foregoing modeling results and optimization objectives, use the optimization algorithm to solve the optimal economy, configuration plan, and scheduling strategy of the system, and analyze the optimization results to guide practical applications.

[0271] As Figure 7 shown, it is another complete planning process provided according to the embodiments of the present application:

[0272] R1, System structure construction: According to the system requirements and design objectives, construct the overall structure model of the organic liquid hydrogen storage system and hydrogenation station based on renewable energy hydrogen production, laying a foundation for subsequent optimization;

[0273] R2, Construction of the optimization objective function: Establish the system optimization objective function, comprehensively consider equipment investment, operation, and maintenance costs to achieve the best economic benefits;

[0274] R3, System modeling: Construct the mathematical models of wind and solar power generation, electrolyzers, battery energy storage, organic liquid hydrogenation, and hydrogen storage systems to describe the dynamic operation characteristics of each module;

[0275] R4, Wind and solar power generation models: Establish wind power generation and photovoltaic power generation models to describe the relationship between their power generation and local meteorological conditions;

[0276] R5, Electrolyzer Model: Describes the relationship between the power input to the electrolyzer and the hydrogen production flow rate, and defines the operating range of the electrolyzer;

[0277] R6, Energy Storage Battery Model: Constructs a battery charge and discharge model, and defines the battery charge balance and its capacity and power constraints;

[0278] R7, Hydrogenation Reactor Model: Describes the process of the reaction between hydrogen and hydrogen-free organic liquid in the reactor to produce hydrogen-rich organic liquid, and determines the operating range of the reactor;

[0279] R8, Storage Tank Model: Describes the mass balance relationship and capacity constraints of hydrogen-rich and hydrogen-free organic liquid storage tanks;

[0280] R9, System Coupling Modeling: Establishes a coupling model of the hydrogen production system and the hydrogenation system, and realizes the dynamic connection between the two systems through the hydrogenation reactor;

[0281] R10, Input of Economic and Technical Parameters: Defines the economic and technical parameters of the system, including equipment costs, operating expenses, and reaction kinetics data, to support model optimization;

[0282] R11, Model Solving: Solves the model using an optimization algorithm with the goal of minimizing the total system cost to obtain the optimal configuration and scheduling scheme. For example, methods such as Mixed-Integer Linear Programming (MILP) or Nonlinear Programming (NLP) can be used. For an optimization model containing discrete variables (such as the number of devices) and continuous variables (such as power), it is solved by calling the optimization solver (CPLEX) in the General Algebraic Modeling System (GAMS);

[0283] R12, Analysis of Optimization Results: Analyzes the optimization results, including the capacity configuration and operating characteristics of each device, to provide guidance for the design and operation of the actual system.

[0284] Reference Figure 8 , which shows an optimization device 41 for an organic liquid hydrogen storage system based on renewable energy hydrogen production provided by an embodiment of the present application, including:

[0285] A modeling module 411, configured to establish a parameter optimization model constrained by the influence conditions of environmental changes on renewable energy power generation according to a coupling physical model for characterizing the process of transferring hydrogen-rich storage tanks and hydrogen-poor storage tanks between the organic liquid hydrogen storage system and the organic liquid dehydrogenation system;

[0286] A hydrogen refueling station parameter solving module 412, configured to solve the parameter optimization model to obtain multiple hydrogen storage design parameter values of the organic liquid hydrogen storage system based on renewable energy hydrogen production;

[0287] A hydrogen refueling station configuration module 413 is used to configure an organic liquid hydrogen storage system based on renewable energy hydrogen production according to the obtained multiple hydrogen storage design parameter values, so as to obtain an optimized organic liquid hydrogen storage system based on renewable energy hydrogen production.

[0288] Optionally, the modeling module 411 includes:

[0289] A coupling model sub-module is used to establish a coupled physical model according to the transfer process of the hydrogen-rich storage tank and the hydrogen-lean storage tank;

[0290] An optimization model sub-module is used to establish a parameter optimization model under a preset optimization goal by using the energy supply quantification relationship formed by the impact of environmental changes on renewable energy as a constraint condition of the coupled physical model.

[0291] In summary, in the embodiment of the present application, by setting up a hydrogen-lean storage tank receiving module, the hydrogen-lean organic liquid storage tank that can still be recycled after dehydrogenation is effectively recovered and re-enters the hydrogen storage system, so as to reduce the waste of storage tank resources and improve the operating efficiency of the hydrogen storage system. By using the hydrogenation module to carry out a hydrogenation reaction on the hydrogen-lean organic liquid, the organic liquid in the hydrogen-free state is converted into a hydrogen-rich state, realizing the safe storage of hydrogen and enhancing the circulation capacity of the storage tank between the hydrogen production system and the hydrogen refueling system. At the same time, by directly supplying power to the hydrogen production module through the power supply module, the hydrogen production process is closely coupled with the renewable energy power generation side, so as to use the variable electric energy generated by wind energy and solar photovoltaic power generation for electrolytic hydrogen production, improve the energy utilization rate, and avoid the efficiency loss caused by unstable power supply during the hydrogen production process. Finally, the hydrogen-rich storage tank transportation module transports the hydrogenated hydrogen-rich organic liquid storage tank to the dehydrogenation system, so that the storage and release of hydrogen energy can be flexibly adjusted according to the load changes of the user side, thereby improving the supply-demand matching ability of hydrogen energy and effectively alleviating the mismatch problem between the volatility of wind and solar power generation and the demand changes of the user side. Therefore, the embodiment of the present application constructs an organic liquid hydrogen storage system based on renewable energy hydrogen production, uses the closed-loop circulation mechanism of the storage tank to optimize the connection relationship between the hydrogen production and hydrogen storage processes, while improving the resource utilization efficiency, ensuring the adaptability to the power fluctuations of the wind and solar power generation side, and providing a dynamic adjustment mechanism for the load fluctuations of the user side. This system design effectively solves the problem of insufficient supply-demand allocation between the output changes of the wind and solar power generation side and the load fluctuations of the user side in the prior art, and at the same time reduces the phenomenon of low utilization rate of storage tanks and large resource waste during the hydrogen storage process, providing an innovative solution for the efficient operation of the renewable energy hydrogen production system.

[0292] Refer to Figure 9, is a block diagram of an electronic device 500 according to another embodiment of the present invention. For example, the electronic device 500 may be provided as a server. The electronic device 500 may include one or more of the following components: a processing component 502, a memory 504, a power component 506, a multimedia component 508, an audio component 510, an input / output (I / O) interface 512, a sensor component 514, and a communication component 516.

[0293] The processing component 502 included in the electronic device 500 further includes one or more processors, and memory resources represented by the memory 504 for storing instructions executable by the processing component 502, such as application programs. The application programs stored in the memory 504 may include one or more modules each corresponding to a set of instructions. In addition, the processing component 502 is configured to execute instructions to perform the methods provided in the embodiments of the present application.

[0294] The processing component 502 generally controls the overall operation of the electronic device 500, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations. The processing component 502 may include one or more processors 520 to execute instructions to complete all or part of the steps of the above methods. In addition, the processing component 502 may include one or more modules to facilitate the interaction between the processing component 502 and other components.

[0295] The memory 504 is used to store various types of data to support the operation of the electronic device 500. The memory 504 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, a magnetic disk, or an optical disk.

[0296] The power component 506 provides power to various components of the electronic device 500. The power component 506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 500.

[0297] The multimedia component 508 includes an interface that provides an output interface between the electronic device 500 and the user. In some embodiments, the interface may include a liquid crystal display (LCD) and a touch panel (TP). In some embodiments, the multimedia component 508 includes a front camera and / or a rear camera.

[0298] The audio component 510 is used to output and / or input audio signals. The received audio signals can be further stored in the memory 504 or sent via the communication component 516.

[0299] The input / output I / O interface 512 provides an interface between the processing component 502 and the peripheral interface module.

[0300] The sensor component 514 includes one or more sensors for providing an assessment of the status of various aspects of the electronic device 500. For example, the sensor component 514 can detect the on / off state of the electronic device 500 and the relative positioning of components. The sensor component 514 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 514 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.

[0301] The communication component 516 is used to facilitate communication between the electronic device 500 and other devices in a wired or wireless manner. The electronic device 500 can access a wireless network based on communication standards, such as WiFi, a carrier network (such as 2G, 3G, 4G, or 5G), or a combination thereof.

[0302] In an exemplary embodiment, the electronic device 500 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for implementing the methods provided in the embodiments of the present application.

[0303] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as the memory 504 including instructions, and the above instructions can be executed by the processor 520 of the electronic device 500 to complete the above methods.

[0304] The electronic device 500 can also operate based on an operating system stored in the memory 504, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSD TM, or the like.

[0305] It should be noted that for the method embodiments of the present application, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the embodiments of the present application are not limited by the described order of actions, because according to the embodiments of the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential for the embodiments of the present application.

[0306] Other embodiments of the present application will be readily apparent to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and examples are only illustrative, and the true scope and spirit of the present application are pointed out by the following claims.

[0307] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. An organic liquid hydrogen storage system based on hydrogen production from renewable energy, characterized in that, Including: A lean hydrogen storage tank receiving module, an energy supply module, a hydrogen production module, a hydrogenation module, and a rich hydrogen storage tank shipping module; The lean hydrogen storage tank receiving module is used to receive a lean hydrogen storage tank storing lean hydrogen organic liquid from an organic liquid dehydrogenation system; The energy supply module is used to supply energy to the hydrogen production module through the electric energy generated by renewable energy, so that the hydrogen production module performs electrolytic hydrogen production; The hydrogenation module is used to perform a hydrogenation reaction on the lean hydrogen organic liquid in the lean hydrogen storage tank receiving module to obtain rich hydrogen organic liquid; The rich hydrogen storage tank shipping module is used to store the rich hydrogen organic liquid produced by the hydrogenation module and transport the rich hydrogen storage tank storing the rich hydrogen organic liquid to the organic liquid dehydrogenation system; The organic liquid hydrogen storage system is configured according to a plurality of hydrogen storage design parameter values obtained by solving a parameter optimization model; The parameter optimization model is established based on a coupled physical model characterizing the dynamic balance characteristics of the process of transferring the rich hydrogen storage tank and the lean hydrogen storage tank between the organic liquid hydrogen storage system and the organic liquid dehydrogenation system.

2. The organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 1, characterized in that, The energy supply module includes at least one of a fan and a photovoltaic device.

3. The organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 2, characterized in that, The energy supply module further includes an energy storage battery.

4. The organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 1, characterized in that, The organic liquid dehydrogenation system is an organic liquid dehydrogenation system based on a hydrogen refueling station application scenario.

5. An optimization method for an organic liquid hydrogen storage system based on renewable energy hydrogen production, characterized in that, Including: Establish a parameter optimization model constrained by the influence conditions of environmental changes on renewable energy power generation according to a coupled physical model characterizing the dynamic balance characteristics of the process of transferring the rich hydrogen storage tank and the lean hydrogen storage tank between the organic liquid hydrogen storage system and the organic liquid dehydrogenation system; Solve the parameter optimization model to obtain a plurality of hydrogen storage design parameter values of the organic liquid hydrogen storage system based on renewable energy hydrogen production; Configure the organic liquid hydrogen storage system based on renewable energy hydrogen production according to the obtained plurality of hydrogen storage design parameter values to obtain the optimized organic liquid hydrogen storage system based on renewable energy hydrogen production; The organic liquid hydrogen storage system includes: A lean hydrogen storage tank receiving module, an energy supply module, a hydrogen production module, a hydrogenation module, and a rich hydrogen storage tank shipping module; The lean hydrogen storage tank receiving module is used to receive a lean hydrogen storage tank storing lean hydrogen organic liquid from an organic liquid dehydrogenation system; The energy supply module is used to supply energy to the hydrogen production module through the electric energy generated by renewable energy, so that the hydrogen production module performs electrolytic hydrogen production; The hydrogenation module is used to perform a hydrogenation reaction on the lean hydrogen organic liquid in the lean hydrogen storage tank receiving module to obtain rich hydrogen organic liquid; The rich hydrogen storage tank shipping module is used to store the rich hydrogen organic liquid produced by the hydrogenation module and transport the rich hydrogen storage tank storing the rich hydrogen organic liquid to the organic liquid dehydrogenation system.

6. The optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 5, characterized in that Establishing a parameter optimization model constrained by the influence conditions of environmental changes on renewable energy power generation according to the coupled physical model characterizing the process of transferring the rich hydrogen storage tank and the lean hydrogen storage tank between the organic liquid hydrogen storage system and the organic liquid dehydrogenation system includes: Establish the coupled physical model according to the transfer process of the rich hydrogen storage tank and the lean hydrogen storage tank; Quantify the energy supply relationship formed by the impact of environmental changes on renewable energy as the constraint condition of the coupled physical model, and establish a parameter optimization model under the preset optimization objective.

7. The optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 5, characterized in that When the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production includes a fan and a photovoltaic device, the parameter optimization model includes a wind-solar power generation sub-model used to characterize the relationship between the energy supply module and the output power of the fan and the photovoltaic device. The wind-solar power generation sub-model includes the following constraint formulas: ， Among them, represents the total power generation of the power supply module in the k-th time period, represents the power generation of the wind turbine in the k-th time period; represents the power generation of the photovoltaic device in the k-th time period; It is also restricted by the formula for the average power generation of the fan: ， wherein is the capacity factor of wind power generation, is the rated power of the wind turbine; It is also restricted by the formula for the average power generation of photovoltaic devices; ， Among them is the capacity factor of photovoltaic power generation; is the rated power of the photovoltaic panel.

8. The optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 7, characterized in that, When the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production further includes an energy storage battery, the wind-solar power generation sub-model further includes a battery energy storage sub-model between the hydrogen production module and the battery energy storage system. The battery energy storage sub-model includes the following constraint formulas: ； Among them, represents the output power of the power supply module to the hydrogen production module in the k-th time period, represents the output power of the power supply module to the energy storage battery in the k-th time period, represents the discarded power of the power supply module in the k-th time period.

9. The optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 5, characterized in that When the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production includes a power generation device and an energy storage battery, the parameter optimization model includes an electrolyzer sub-model used to characterize the input power of the hydrogen production module of the organic liquid hydrogen storage system based on renewable energy hydrogen production. The electrolyzer sub-model includes the following constraint formulas: ， Among them, is the input power of the hydrogen production module in the k-th time period; is the output power of the power generation equipment in the k-th time period; is the output power of the energy storage battery in the k-th time period; It is also restricted by the flow rate relationship formula between the hydrogen production module and the hydrogenation module: ； Among them, is the flow rate of hydrogen produced by the hydrogen production module to the hydrogenation module; is the electro-hydrogen conversion value of the hydrogen production module; It is also restricted by the formula of the start-stop condition relationship of the hydrogen production module: ； Among them, is the rated capacity of the hydrogen production module; is the lower limit of the operating power of the hydrogen production module.

10. The optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 5, characterized in that, When the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production includes a power generation device and an energy storage battery, the parameter optimization model includes a battery energy storage sub-model used to characterize the charge and discharge process of the energy storage battery. The battery energy storage sub-model includes the following constraint formulas: Charging power of the energy storage battery And the input power of the power generation equipment to the energy storage battery Is constrained by the following formula: ， Among them, is the charging efficiency of the energy storage battery; Discharge power of the energy storage battery And the input power of the energy storage battery to the hydrogen production module Is constrained by the following formula: ， Among them, is the discharge efficiency of the energy storage battery; The battery charge of the energy storage battery at the end of the k-th time period and the battery charge at the end of the (k + 1)-th time period are constrained by the following formula: ， Among them, represents the time interval from the end of the k-th time period to the end of the (k + 1)-th time period; It is also subject to the battery capacity formula of the energy storage battery: ， Among them, is the rated capacity of the energy storage battery; is the minimum state of charge of the energy storage battery, is the maximum state of charge of the energy storage battery; and is also subject to the power limit formula for energy storage batteries: ， ， ， Among them, is the maximum power for charging and discharging of the energy storage battery, and are binary variables that constrain each other. When, it means the energy storage battery is in the charging state. When, it means the energy storage battery is in the discharging state.

11. The optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 5, characterized in that, The parameter optimization model includes an organic liquid hydrogen storage sub-model used to characterize the hydrogenation process of the hydrogenation module. The organic liquid hydrogen storage sub-model includes the following constraint formulas: Volume of the reactor of the hydrogenation module Constrained by the following formula: ， Among them, a1 is a fitting parameter between the molar flow rate of the hydrogen inlet during the hydrogenation process and the reactor volume of the hydrogenation module; is the flow rate of hydrogen produced by the hydrogen production module; is the hydrogenation reaction conversion rate when the hydrogen storage medium reacts with hydrogen in the reactor of the hydrogenation module; is the relative molecular mass of hydrogen; The molar flow rate of hydrogen in the hydrogenation reaction is constrained by the following formula: ； The flow rate of the hydrogen-deficient organic liquid in the hydrogen-deficient storage tank flowing into the reactor of the hydrogenation module during the hydrogenation reaction is constrained by the following formula: ， Wherein, is the relative molecular mass of the hydrogen-deficient organic liquid, is the ratio of the molar amount between hydrogen and the hydrogen-deficient organic liquid in the reaction equation of the hydrogenation reaction; is the molar flow rate of hydrogen in the hydrogenation reaction. Flow rate of hydrogen-rich organic liquid flowing into the hydrogen-rich storage tank Constrained by the following formula: ， Wherein, is the relative molecular mass of the hydrogen-rich organic liquid, is the ratio of the molar amount between hydrogen and the hydrogen-rich organic liquid in the reaction equation of the hydrogenation reaction; is the molar flow rate of hydrogen in the hydrogenation reaction. formed by window operations, for the volume of the reactor of the hydrogenation module constrained by the following formula: ； Among them, is the lower limit of the operating window of the reactor of the hydrogenation module, is the upper limit of the operating window of the reactor of the hydrogenation module; is the rated capacity of the reactor of the hydrogenation module.

12. The optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 5, characterized in that, The parameter optimization model includes a hydrogenation process organic liquid storage tank sub-model used to characterize the impact of the hydrogenation process on the transfer process of the hydrogen-rich storage tank. The hydrogenation process organic liquid storage tank sub-model includes the following constraint formulas: The time interval from the end of the k-th time period to the end of the (k + 1)-th time period for the hydrogen-rich storage tank on the hydrogen storage system side The organic liquid balance in is constrained by the following formula: ， Wherein, is the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the k-th time period, is the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the (k + 1)-th time period; The mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank is also constrained by the following formula to characterize that the initial and final capacities of the hydrogen-rich storage tank are equal during the operation cycle: ； It is also restricted by the following formula according to the capacity of the hydrogen-rich storage tank: ， Among them, is the rated capacity of the hydrogen-rich storage tank; is the minimum storage state parameter of the hydrogen-rich storage tank, is the maximum storage state parameter of the hydrogen-rich storage tank.

13. The optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production according to claim 5, characterized in that, The parameter optimization model includes a hydrogenation process organic liquid storage tank sub-model used to characterize the impact of the hydrogenation process on the transfer process of the hydrogen-poor storage tank. The hydrogenation process organic liquid storage tank sub-model includes the following constraint formulas: The time interval from the end of the k-th time period to the end of the (k + 1)-th time period of the hydrogen-lean storage tank on the hydrogen storage system side The organic liquid balance in is constrained by the following formula: ， wherein, is the mass of the hydrogen-rich organic liquid in the hydrogen-depleted storage tank at the end of the k-th time period, is the mass of the hydrogen-rich organic liquid in the hydrogen-depleted storage tank at the end of the (k + 1)-th time period; It is also restricted by the following formula according to the capacity of the hydrogen-deficient storage tank: ； wherein, is the rated capacity of the hydrogen-deficient storage tank; represents the minimum storage state parameter of the hydrogen-deficient storage tank, represents the maximum storage state parameter of the hydrogen-deficient storage tank.

14. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, it implements the optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production as described in any one of claims 5 to 13.

15. An electronic device, characterized in that, It includes a processor, a memory, and a computer program stored on the memory and executable on the processor. When the computer program is executed by the processor, it implements the steps of the optimization method of the organic liquid hydrogen storage system based on renewable energy hydrogen production as described in any one of claims 5 to 13.

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