Energy supply method and optimization strategy for integrated energy system with hydrogen energy as hub

Abstract

The invention provides a comprehensive energy system energy supply method taking hydrogen energy as a hub and an operation optimization strategy, belongs to the technical field of energy storage, takes hydrogen energy as a key part of energy storage and application of a comprehensive energy system, and plays the advantages of hydrogen energy combined cooling heating and power. Inconvenience caused by the fact that a traditional comprehensive energy system uses an energy storage battery, a gas turbine, an electric boiler and the like is reduced, the structure of the comprehensive energy system is optimized, and the comprehensive energy system has the advantages of being simple in structure, high in energy utilization efficiency, environmentally friendly, free of pollution, low in investment cost and the like. The operation economy of the integrated energy system is improved through the sequence of photovoltaic power generation and the connection of commercial power to the electrolytic cell hydrogen production equipment and the logic control process of starting and stopping the electrolytic cell equipment, and by taking the time-of-use electricity price as an important factor influencing the operation control strategy of the integrated energy system. In the heat release process of the hydrogen fuel cell, one part is used for the solid-state energy storage system to help the solid-state energy storage system to release hydrogen, so that the heat utilization efficiency of the hydrogen fuel cell is further improved.

Description

Technical Field

[0001] The present invention belongs to the field of energy storage technology, and in particular relates to an energy supply method and optimization strategy for an integrated energy system with hydrogen energy as a hub. Background Art

[0002] The integrated energy system is an advanced technology that uses information management technology to control the operating status of various regional energy equipment (including power generation equipment, thermal equipment, energy storage equipment, power grid equipment and auxiliary equipment, etc.), thereby achieving coordinated and unified regional energy flow and information flow. It has the advantages of high energy utilization efficiency and fast investment and construction, and is an important part of building a distributed energy system. The integrated energy system with hydrogen energy as the hub is a new distributed energy system solution. It is composed of hydrogen production system, energy storage system, hydrogen use system and auxiliary equipment. Among them, the hydrogen production system generally refers to electrolyzer hydrogen production equipment, which is powered by new energy power generation or municipal electricity; the energy storage system mainly refers to lithium-ion batteries, lead-carbon batteries and hydrogen storage equipment; the hydrogen use system generally refers to hydrogen fuel cells, hydrogen refueling stations, residential hydrogen use, etc., and the auxiliary equipment generally refers to inverters, transformers, heating equipment and refrigeration equipment.

[0003] In the prior art, the corresponding control strategy optimization analysis is carried out with the goal of hydrogen production from new energy and economy, but the analysis of energy supply and electricity economy in the application scenario is not involved. Summary of the invention

[0004] In view of the fact that in the above-mentioned prior art, the corresponding control strategy optimization analysis is carried out with the goal of hydrogen production from new energy and economic efficiency, and the problem of energy supply and electricity economic efficiency analysis in the application scenario is not involved,

[0005] The present invention proposes a comprehensive energy system energy supply method with hydrogen energy as the hub, comprising:

[0006] Obtaining a first energy source through a distributed photovoltaic power station, and converting the first energy source into a first hydrogen energy through a hydrogen production electrolyzer;

[0007] Obtain a second energy source through a city power system, and convert the second energy source into a first hydrogen energy through a hydrogen production electrolyzer;

[0008] The first hydrogen energy is stored in a solid-state hydrogen storage system, and the first hydrogen energy is converted into electrical energy and thermal energy to provide power, heating and cooling for the park by acquiring the first hydrogen energy in the solid-state hydrogen storage system;

[0009] The heating is to use a hydrogen fuel cell to convert the first hydrogen energy into hot water, and the hot water is used to heat the park through a heat exchanger and a heating pipe network.

[0010] Preferably, the first hydrogen energy is converted into electrical energy, comprising:

[0011] The first hydrogen energy is obtained from the solid-state hydrogen storage system, converted into direct current through a hydrogen fuel cell, and then converted into alternating current through an electric energy conversion module to supply power to the park.

[0012] Preferably, the first hydrogen energy is converted into heat energy to provide refrigeration for the park, including:

[0013] The first hydrogen energy is obtained from the solid-state hydrogen storage system, converted into hot water through a hydrogen fuel cell, and refrigerated by convection heat exchange through a lithium bromide refrigeration system, and then the entire area is cooled through a refrigeration pipeline network.

[0014] Preferably, the output power of the distributed photovoltaic power station and the starting power of the hydrogen production electrolyzer are obtained, and when the output power of the distributed photovoltaic power station is not less than the starting power of the hydrogen production electrolyzer, the first energy is obtained through the distributed photovoltaic power station;

[0015] When the output power of the mains power system is greater than the rated power of the hydrogen production electrolyzer, the second energy source is obtained through the mains power system.

[0016] Preferably, the hydrogen production electrolyzer cannot obtain the first energy and the second energy at the same time. When the distributed photovoltaic power station and the city power system meet the energy supply conditions at the same time, the distributed photovoltaic power station provides electricity as the first priority;

[0017] When the primary energy provided by the distributed photovoltaic power station in a day cycle cannot meet the equivalent hydrogen consumption of the park, the secondary energy is provided to the electrolyzer hydrogen production equipment through the municipal power system.

[0018] Based on the same inventive concept, the embodiment of the present invention also provides an integrated energy system operation optimization strategy with hydrogen energy as the hub, including:

[0019] Obtain comprehensive energy system parameters through data information module;

[0020] Constructing a system model, inputting the comprehensive energy system parameters into the system model, and calculating the value of the system model through the system calculation model;

[0021] The system constraints are constructed through the system model, the operation cost of the comprehensive energy system is used as the target to construct the system objective function, and the system constraints are input into the system objective function;

[0022] The optimal solution of the system objective function is calculated by particle swarm algorithm.

[0023] Preferably, the comprehensive energy system parameters include:

[0024] Time-of-use electricity price curve, solar irradiance curve, application scenario load curve, photovoltaic cell temperature coefficient, photovoltaic module surface temperature, hydrogen production equipment starting power threshold, hydrogen production equipment rated operating power, hydrogen production efficiency, hydrogen molar mass, hydrogen higher calorific value, solid-state hydrogen storage system maximum capacity, fuel cell power generation efficiency, fuel cell power generation system efficiency and fuel cell heating system efficiency.

[0025] Preferably, building a system model includes:

[0026] Construct photovoltaic power generation model, photovoltaic daily power generation model, electrolyzer equipment hydrogen production power system model, electrolyzer equipment hydrogen production model, relationship model between power input and hydrogen production, relationship model between power input and hydrogen production, fuel cell power generation model, fuel cell heating model, fuel cell heating model for solid-state hydrogen storage system, rate of hydrogen release from solid-state hydrogen storage system, fuel cell total system factor model, and relationship model between total energy provided by fuel cell and hydrogen consumption.

[0027] Preferably, the constructing of system constraints through the system model includes:

[0028] Construct constraints between hydrogen consumption and hydrogen production, constraints on the start and stop time of the electrolyzer equipment, and constraints on the start and stop time of photovoltaic power supply for electrolyzer hydrogen production.

[0029] Based on the same inventive concept, an embodiment of the present invention further provides an electronic device, comprising: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus;

[0030] a memory storing a computer program;

[0031] The processor, when executing the program stored in the memory, implements the operation optimization strategy of the integrated energy system with hydrogen energy as the hub.

[0032] Based on the same inventive concept, an embodiment of the present invention further provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements an operation optimization strategy for an integrated energy system with hydrogen energy as the hub.

[0033] Beneficial effects of the invention: The invention uses hydrogen energy as a key part of energy storage and application of the integrated energy system, gives full play to the advantages of hydrogen energy trigeneration of cooling, heating and power, reduces the inconvenience caused by the use of energy storage batteries, gas turbines, electric boilers, etc. in traditional integrated energy systems, optimizes the structure of the integrated energy system, and makes it have the advantages of simple structure, high energy utilization efficiency, environmental protection and pollution-free, low investment cost, etc.

[0034] Through the sequence of photovoltaic power generation and city power access to the electrolyzer hydrogen production equipment and the logical control process of the start and stop of the electrolyzer equipment, it is proposed to use time-of-use electricity price as an important factor affecting the operation control strategy of the integrated energy system, thereby improving the operation economy of the integrated energy system.

[0035] During the process of hydrogen fuel cells releasing heat, a portion of it is used in the solid-state energy storage system to help it release hydrogen, further increasing the utilization efficiency of the heat in the hydrogen fuel cell.

[0036] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 A schematic diagram of the integrated energy system of the present invention is shown;

[0039] Figure 2 The flow chart of the operation control strategy of the present invention is shown;

[0040] Figure 3 The time-of-use electricity price curve diagram of the present invention is shown;

[0041] Figure 4 The typical day solar irradiance curve of the present invention is shown;

[0042] Figure 5 A daily load curve diagram of the application scenario of the present invention is shown;

[0043] Figure 6 The operation logic control diagram of the electrolytic cell equipment of the present invention is shown;

[0044] Figure 7 A schematic diagram of an electronic device to which the present invention is applied is shown. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that the terms "first", "second" etc. in the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged in appropriate circumstances, so that the embodiments of the present application described here. In the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" etc. are based on the orientation or positional relationship shown in the accompanying drawings.

[0047] The present invention provides a comprehensive energy system energy supply method with hydrogen energy as the hub, see Figure 1 ,include:

[0048] Obtaining a first energy source through a distributed photovoltaic power station, and converting the first energy source into a first hydrogen energy through a hydrogen production electrolyzer;

[0049] Obtain a second energy source through a city power system, and convert the second energy source into a first hydrogen energy through a hydrogen production electrolyzer;

[0050] The first hydrogen energy is stored in a solid-state hydrogen storage system, and the first hydrogen energy is converted into electrical energy and thermal energy to provide power, heating and cooling for the park by acquiring the first hydrogen energy in the solid-state hydrogen storage system;

[0051] The heating is to use a hydrogen fuel cell to convert the first hydrogen energy into hot water, and the hot water is used to heat the park through a heat exchanger and a heating pipe network.

[0052] Specifically, the first hydrogen energy is converted into electrical energy, comprising:

[0053] The first hydrogen energy is obtained from the solid-state hydrogen storage system, converted into direct current through a hydrogen fuel cell, and then converted into alternating current through an electric energy conversion module to supply power to the park.

[0054] The first hydrogen energy is converted into heat energy to provide cooling for the park, including:

[0055] The first hydrogen energy is obtained from the solid-state hydrogen storage system, converted into hot water through a hydrogen fuel cell, and refrigerated by convection heat exchange through a lithium bromide refrigeration system, and then the entire area is cooled through a refrigeration pipeline network.

[0056] Obtaining the output power of the distributed photovoltaic power station and the starting power of the hydrogen production electrolyzer, and when the output power of the distributed photovoltaic power station is not less than the starting power of the hydrogen production electrolyzer, obtaining the first energy through the distributed photovoltaic power station;

[0057] When the output power of the mains power system is greater than the rated power of the hydrogen production electrolyzer, the second energy source is obtained through the mains power system.

[0058] The hydrogen production electrolyzer cannot obtain the first energy and the second energy at the same time. When the distributed photovoltaic power station and the city power system meet the energy supply conditions at the same time, the distributed photovoltaic power station provides electricity as the first priority;

[0059] When the primary energy provided by the distributed photovoltaic power station in a day cycle cannot meet the equivalent hydrogen consumption of the park, the secondary energy is provided to the electrolyzer hydrogen production equipment through the municipal power system.

[0060] It should be noted that the comprehensive energy system involved in the present invention uses hydrogen energy as energy, and utilizes hydrogen fuel cell equipment to convert hydrogen energy into electrical energy and thermal energy to provide cooling, heating and power trigeneration services for the park. The power provided by the hydrogen fuel cell can meet the power of the park's energy load. The park's distributed photovoltaic or city electricity only provides electricity for the electrolyzer hydrogen production equipment, wherein the output power of the distributed photovoltaic power station must be above the starting power of the electrolyzer hydrogen production equipment to ensure the operation of the electrolyzer. When the city electricity provides electricity to the electrolyzer hydrogen production equipment, it operates at the rated power of the electrolyzer. Distributed photovoltaic and city electricity cannot provide electricity to the electrolyzer at the same time. Distributed photovoltaic is used to provide electricity to the electrolyzer equipment first. When the electricity provided by the distributed photovoltaic power station within a day cycle cannot meet the equivalent hydrogen consumption of the park, the city electricity system is used to provide electricity to the hydrogen production electrolyzer equipment.

[0061] The present invention proposes to use hydrogen energy as a key part of energy storage and application in an integrated energy system, give full play to the advantages of hydrogen energy trigeneration, reduce the inconvenience caused by the use of energy storage batteries, gas turbines, electric boilers, etc. in traditional integrated energy systems, optimize the structure of the integrated energy system, and make it have the advantages of simple structure, high energy utilization efficiency, environmental protection and pollution-free, and low investment cost.

[0062] Based on the same inventive concept, the present invention also provides an integrated energy system operation optimization strategy with hydrogen energy as the hub, see Figure 2 ,include:

[0063] Obtain comprehensive energy system parameters through data information module;

[0064] Constructing a system model, inputting the comprehensive energy system parameters into the system model, and calculating the value of the system model through the system calculation model;

[0065] The system constraints are constructed through the system model, the operation cost of the comprehensive energy system is used as the target to construct the system objective function, and the system constraints are input into the system objective function;

[0066] The optimal solution of the system objective function is calculated by particle swarm algorithm.

[0067] Specifically, see Figure 3 , Figure 4 and Figure 5 , the comprehensive energy system parameters include:

[0068] Time-of-use electricity price curve, solar irradiance curve, application scenario load curve, photovoltaic cell temperature coefficient, photovoltaic module surface temperature, hydrogen production equipment starting power threshold, hydrogen production equipment rated operating power, hydrogen production efficiency, hydrogen molar mass, hydrogen higher calorific value, solid-state hydrogen storage system maximum capacity, fuel cell power generation efficiency, fuel cell power generation system efficiency and fuel cell heating system efficiency.

[0069] In some optional embodiments, building a system model includes:

[0070] Construct photovoltaic power generation model, photovoltaic daily power generation model, electrolyzer equipment hydrogen production power system model, electrolyzer equipment hydrogen production model, relationship model between power input and hydrogen production, relationship model between power input and hydrogen production, fuel cell power generation model, fuel cell heating model, fuel cell heating model for solid-state hydrogen storage system, rate of hydrogen release from solid-state hydrogen storage system, fuel cell total system factor model, and relationship model between total energy provided by fuel cell and hydrogen consumption.

[0071] In some optional embodiments, constructing the system constraint condition through the system model includes:

[0072] Construct constraints between hydrogen consumption and hydrogen production, constraints on the start and stop time of the electrolyzer equipment, and constraints on the start and stop time of photovoltaic power supply for electrolyzer hydrogen production.

[0073] For the above technical solutions, see Figure 6 , which is described in detail below.

[0074] Specifically, the photovoltaic power generation model is

[0075]

[0076] Among them, P(t) is the actual output power of the photovoltaic power station at time t, P PVR It is the rated output power of the photovoltaic cell under standard conditions, which is generally taken from the nameplate value. TSI(t) is the actual solar irradiance at time t (data obtained according to the daily solar irradiance curve), in W / m 2 ; GSTC is the standard light intensity, the value is 1000W / m 2 ; α is the temperature coefficient of the photovoltaic cell, the unit is / ℃, which can be found in the manual; T Ct is the surface temperature of the photovoltaic cell at time t, which can generally be obtained from the experience value of the photovoltaic power station data control center, in °C; T STC It is the standard test temperature, generally 25℃.

[0077] The photovoltaic daily power generation model is

[0078]

[0079] Among them, E PV t 1 to 2 The actual power generation of the photovoltaic power station in the time period, in KWh;

[0080] Hydrogen production power system model for electrolyzer equipment

[0081] N H2 (t) = [(P(t) × η e ) / HHV]×M H2

[0082] Among them, N H2 (t) is the amount of hydrogen produced per unit time, in g / s; P(t) is the actual input power of the photovoltaic power station to the hydrogen production equipment at time t, in kW; η e is the hydrogen production efficiency (heat loss inside the electrolysis equipment), which is generally 70%-80%; HHV is the higher heating value of hydrogen, which is 285.85, in kJ / mol; M H2 is the molar mass of hydrogen, which is 2 and its unit is kg / kmol.

[0083] The hydrogen production model of the electrolyzer equipment is

[0084]

[0085] Among them, Q H2 It is the mass of hydrogen produced by the electrolyzer, in kg.

[0086] The relationship model between the input power and the hydrogen production is:

[0087] Q H2 =A×E 电解槽输入 ×3.6

[0088] Q H2 is the amount of hydrogen produced, in kg; A is the energy conversion coefficient of the electrolyzer hydrogen production equipment, A = (η e / HHV)×M H2, unit is g / kJ; E 电解槽输入 The amount of electricity input to the electrolyzer equipment in kWh.

[0089] The fuel cell power generation model is

[0090]

[0091] P H2 is the actual output power of the fuel cell, in kW; m(t) is the mass rate of hydrogen input to the fuel cell at time t, in kg / s; η el,HHV is the power generation efficiency of the fuel cell, generally 50%-55%; η sys The system efficiency of fuel cell power generation is generally 85%.

[0092] The fuel cell heating model is

[0093]

[0094] Among them, P H2,T is the actual thermal power output of the fuel cell, in kW; η sys,T The system efficiency for providing heat to the fuel cell is generally taken as 80%.

[0095] The model of fuel cell heating for solid hydrogen storage system is:

[0096] P H2,T(固态储氢) =P H2,T ×η 固态储氢

[0097] Among them, P H2,T(固态储氢) is the thermal power provided by the hydrogen fuel cell to the solid hydrogen storage system, in W, η 固态储氢 is the conversion efficiency, which is 50-60%.

[0098] The rate at which the solid-state hydrogen storage system releases hydrogen is

[0099] M(t) 释放氢气 =P H2,T(固态储氢) ×η 固态储氢吸热效率 ×γ

[0100] Among them, M(t) 释放氢气 is the rate of hydrogen release from the solid hydrogen storage system at time t, in g / s; P H2,T(固态储氢) is the thermal power provided by the hydrogen fuel cell to the solid-state hydrogen storage system, in W; η 固态储氢吸热效率 is the heat absorption efficiency of solid-state hydrogen storage; γ is the amount of hydrogen produced per unit heat absorption of the solid-state hydrogen storage system, in g / J.

[0101] The total system factor model of the fuel cell is:

[0102]

[0103] Among them, η H2,总 is the total system factor of the fuel cell, in kJ / g.

[0104] The relationship model between the total energy provided by the fuel cell and the amount of hydrogen used is:

[0105]

[0106] Among them, E H2，总 The total energy provided by the fuel cell, in KWh; m H2，总 is the mass of hydrogen input to the fuel cell, in kg;

[0107] The system constraints are constructed through the system model, including:

[0108] Construct constraints between hydrogen consumption and hydrogen production, constraints on the start and stop time of the electrolyzer equipment, and constraints on the start and stop time of photovoltaic power supply for electrolyzer hydrogen production.

[0109] Specifically, the constraints between hydrogen consumption and hydrogen production are:

[0110]

[0111] Among them, P(t) 园，负 is the total load curve of the park; Q(T0) 储氢 T 0 The amount of hydrogen remaining in the solid-state hydrogen storage system at T 光伏启动 T and T' are the start and stop times of photovoltaic power supply to the electrolyzer; T 市电启动 T” and T” are respectively the start time and stop time of the mains supplying power to the electrolyzer; P AEL is the rated power of the electrolytic cell equipment; Q max，储氢 It is the maximum hydrogen storage capacity of the solid-state hydrogen storage system, in kg.

[0112] Start and stop time constraints of electrolyzer equipment:

[0113]

[0114] 0≤T 光伏启动 <T′≤24

[0115] 0≤T 市电启动 <T″≤24

[0116] The start and stop time constraints of photovoltaic power supply for electrolyzer hydrogen production are as follows:

[0117]

[0118] System objective function:

[0119]

[0120] Where C(t) is the total cost of purchasing electricity from the integrated energy system, in yuan; P T ”-T 市电启动 T 市电启动 The electricity price during the period from T to T.

[0121] (T 市电启动 , T”) is the optimal solution found by the particle swarm algorithm.

[0122] During the process of hydrogen fuel cells releasing heat, a portion of it is used in the solid-state energy storage system to help it release hydrogen, further increasing the utilization efficiency of the heat in the hydrogen fuel cell.

[0123] Based on the same inventive concept, the present invention also provides an electronic device 161, see Figure 7 , including a processor 164, a communication interface 165, a memory 162 and a communication bus, wherein the processor 164, the communication interface 165 and the memory 162 communicate with each other through the communication bus;

[0124] A memory 162 storing a computer program 163;

[0125] When the processor 164 executes the program stored in the memory 162, it implements the operation optimization strategy of the comprehensive energy system with hydrogen energy as the hub.

[0126] The above communication bus may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus may be divided into an address bus, a data bus, a control bus, etc.

[0127] The communication interface 165 is used for communication between the electronic device 161 and other devices.

[0128] The memory 162 may include a random access memory 162 (RAM), or may include a non-volatile memory 162 (non-volatile memory), such as at least one disk memory 162. Optionally, the memory 162 may also be at least one storage device located away from the processor 164.

[0129] The above-mentioned processor 164 can be a general-purpose processor 164, including a central processing unit 164 (CPU), a network processor 164 (NP), etc.; it can also be a digital signal processor 164 (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0130] Based on the same inventive concept, the present invention also provides a computer-readable storage medium storing a computer program 163 , which, when executed by a processor 164 , implements an operation optimization strategy for an integrated energy system with hydrogen energy as the hub.

[0131] The computer-readable storage medium may be included in the device / apparatus described in the above embodiment; or it may exist independently without being assembled into the device / apparatus. The above computer-readable storage medium carries one or more programs, and when the above one or more programs are executed, the operation optimization strategy of the integrated energy system with hydrogen energy as the hub according to the embodiment of the present disclosure is implemented.

[0132] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A comprehensive energy system energy supply method with hydrogen energy as the hub, It is characterized in that include: Obtaining a first energy source through a distributed photovoltaic power station, and converting the first energy source into a first hydrogen energy through a hydrogen production electrolyzer; Obtain a second energy source through a city power system, and convert the second energy source into a first hydrogen energy through a hydrogen production electrolyzer; The first hydrogen energy is stored in a solid-state hydrogen storage system, and the first hydrogen energy is converted into electrical energy and thermal energy to provide power, heating and cooling for the park by acquiring the first hydrogen energy in the solid-state hydrogen storage system; The heating is to use a hydrogen fuel cell to convert the first hydrogen energy into hot water, and the hot water is used to heat the park through a heat exchanger and a heating network.

2. The method according to claim 1, It is characterized in that The first hydrogen energy is converted into electrical energy, comprising: The first hydrogen energy is obtained from the solid-state hydrogen storage system, converted into direct current through a hydrogen fuel cell, and then converted into alternating current through an electric energy conversion module to supply power to the park.

3. The method according to claim 1, It is characterized in that The first hydrogen energy is converted into heat energy to provide cooling for the park, including: The first hydrogen energy is obtained from the solid-state hydrogen storage system, converted into hot water through a hydrogen fuel cell, and refrigerated by convection heat exchange through a lithium bromide refrigeration system, and then the entire area is cooled through a refrigeration pipeline network.

4. The method according to claim 2 or 3, It is characterized in that Obtaining the output power of the distributed photovoltaic power station and the starting power of the hydrogen production electrolyzer, and when the output power of the distributed photovoltaic power station is not less than the starting power of the hydrogen production electrolyzer, obtaining the first energy through the distributed photovoltaic power station; When the output power of the mains power system is greater than the rated power of the hydrogen production electrolyzer, the second energy source is obtained through the mains power system.

5. The method according to claim 4, It is characterized in that The hydrogen production electrolyzer cannot obtain the first energy and the second energy at the same time. When the distributed photovoltaic power station and the city power system meet the energy supply conditions at the same time, the distributed photovoltaic power station provides electricity as the first priority; When the primary energy provided by the distributed photovoltaic power station in a day cycle cannot meet the equivalent hydrogen consumption of the park, the secondary energy is provided to the electrolyzer hydrogen production equipment through the municipal power system.

6. An integrated energy system operation optimization strategy with hydrogen energy as the hub, It is characterized in that include: Obtain comprehensive energy system parameters through data information module; Constructing a system model, inputting the comprehensive energy system parameters into the system model, and calculating the value of the system model through the system calculation model; The system constraints are constructed through the system model, the operation cost of the comprehensive energy system is used as the target to construct the system objective function, and the system constraints are input into the system objective function; The optimal solution of the system objective function is calculated by particle swarm algorithm.

7. The strategy according to claim 6, It is characterized in that The comprehensive energy system parameters include: Time-of-use electricity price curve, solar irradiance curve, application scenario load curve, photovoltaic cell temperature coefficient, photovoltaic module surface temperature, hydrogen production equipment starting power threshold, hydrogen production equipment rated operating power, hydrogen production efficiency, hydrogen molar mass, hydrogen higher calorific value, solid-state hydrogen storage system maximum capacity, fuel cell power generation efficiency, fuel cell power generation system efficiency and fuel cell heating system efficiency.

8. The strategy according to claim 6, It is characterized in that Build a system model, including: Construct photovoltaic power generation model, photovoltaic daily power generation model, electrolyzer equipment hydrogen production power system model, electrolyzer equipment hydrogen production model, relationship model between power input and hydrogen production, relationship model between power input and hydrogen production, fuel cell power generation model, fuel cell heating model, fuel cell heating model for solid-state hydrogen storage system, rate of hydrogen release from solid-state hydrogen storage system, fuel cell total system factor model, and relationship model between total energy provided by fuel cell and hydrogen consumption.

9. The strategy according to claim 6, It is characterized in that The system constraint conditions are constructed by the system model, including: Construct constraints between hydrogen consumption and hydrogen production, constraints on the start and stop time of the electrolyzer equipment, and constraints on the start and stop time of photovoltaic power supply for electrolyzer hydrogen production.

10. An electronic device, It is characterized in that include: A processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; a memory storing a computer program; The processor, when executing the program stored in the memory, implements the operation optimization strategy of the integrated energy system with hydrogen energy as the hub as described in claims 6 to 9.

11. A computer-readable storage medium, It is characterized in that A computer program is stored, and when the computer program is executed by a processor, the operation optimization strategy of the integrated energy system with hydrogen energy as the hub as described in claims 6 to 9 is implemented.

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