Operation planning simulation method and device of electrolytic hydrogen system, computer equipment and readable storage medium

Abstract

The application relates to an operation planning simulation method and device of an electric hydrogen production system, computer equipment, a readable storage medium and a program product. A unit operation constraint of an electric hydrogen production system, a power system operation constraint and a target function based on an operation planning cost of the electric hydrogen production system are determined. An electric hydrogen production system operation planning model is established according to the above constraints and in combination with the target function, operation parameters corresponding to the minimum of the target function are output, and a planning operation strategy of the electric hydrogen production system is determined according to the operation parameters. Compared with the traditional detailed modeling for each unit to realize operation control, the scheme describes the characteristics of a certain group of electric hydrogen production units by using the electric hydrogen production unit type, load data, hydrogen production rate and cost data through the unit clustering method, constructs an operation planning model containing multiple constraints, determines the operation parameters for the above model, formulates the operation planning strategy of the electric hydrogen production system based on the parameters, and improves the operation efficiency of the electric hydrogen production system operation planning simulation.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to an operation planning simulation method, apparatus, computer equipment, computer-readable storage medium, and computer program product for an electric hydrogen production system. Background Art

[0002] Power to Gas (P2G) technology is a hydrogen production technology widely used in the power sector. To optimize the production process of power to gas technology, it is necessary to determine the method to optimize the operating state of each power to gas unit in the power to gas system. Currently, the way to operate a power to gas system is usually to carry out detailed modeling of the power to gas units under each node, and simulate the operation of each unit through specific modeling methods. However, by planning and determining the operation strategy by modeling each unit, the computational complexity of the simulation operation increases due to the increase in the number of system nodes, resulting in reduced operating efficiency.

[0003] Therefore, the current operation planning simulation method for the electric hydrogen production system has the defect of low operation efficiency. Summary of the Invention

[0004] Based on this, it is necessary to provide an operation planning simulation method, device, computer equipment, computer-readable storage medium and computer program product for an electric hydrogen production system that can improve the operation efficiency in response to the above technical problems.

[0005] In a first aspect, the present application provides an operation planning simulation method for an electric hydrogen production system, the method comprising:

[0006] Obtain the type, load data, hydrogen production rate and cost data of the electric hydrogen production unit corresponding to the electric hydrogen production system;

[0007] Determining unit operation constraints corresponding to the electric hydrogen production system based on the type of the electric hydrogen production unit, the load data, and the hydrogen production rate, and determining power system operation constraints corresponding to the electric hydrogen production system based on the load data;

[0008] Determining an operation cost function corresponding to the electric hydrogen production system based on the cost data, and generating an objective function of an operation planning model corresponding to the electric hydrogen production system based on the operation cost function;

[0009] According to the objective function in the operation planning model, the unit operation constraints and the power system operation constraints are integrated with the objective function to form an operation planning model for the electric hydrogen production system. The operation planning model determines that when the objective function is minimized based on the unit operation constraints and the power system operation constraints, the corresponding operating parameters are output, and a planning operation strategy for the electric hydrogen production system is determined based on the operating parameters.

[0010] In one embodiment, obtaining the type of hydrogen production unit, load data, hydrogen production rate and cost data corresponding to the hydrogen production system includes:

[0011] Determining the type of each hydrogen production unit according to the electrolytic cell technology category and capacity of each hydrogen production unit in the hydrogen production system;

[0012] For each type of hydrogen production unit, obtain the load data, installed capacity, energy conversion efficiency and number of units of each hydrogen production unit corresponding to the hydrogen production unit type, and determine the average energy conversion efficiency corresponding to the hydrogen production unit type based on the installed capacity, energy conversion efficiency and number of units;

[0013] Determining a hydrogen production rate corresponding to the type of hydrogen production unit according to the average energy conversion efficiency and a preset lower calorific value of hydrogen;

[0014] Obtain the construction cost per unit capacity and the operation and maintenance cost per unit capacity corresponding to each hydrogen production unit in the hydrogen production unit type, and determine the construction cost and operation and maintenance cost per unit capacity corresponding to the hydrogen production unit type on average based on each of the unit costs to obtain the cost data.

[0015] In one embodiment, determining the operating cost function corresponding to the electric hydrogen production system based on the cost data includes:

[0016] For each type of hydrogen production unit, determine the corresponding unit cost function according to the construction cost and operation and maintenance cost per unit capacity corresponding to the type of hydrogen production unit and the total unit capacity corresponding to the type of hydrogen production unit;

[0017] Determining a profit function of the electric hydrogen production unit corresponding to the electric hydrogen production unit type according to the total hydrogen production volume corresponding to the electric hydrogen production unit type and a preset unit hydrogen production profit;

[0018] The operating cost function is obtained according to the unit cost function and the electric hydrogen production unit profit function.

[0019] In one embodiment, determining the unit operation constraints corresponding to the electric hydrogen production system according to the type of the electric hydrogen production unit, load data, and the hydrogen production rate includes:

[0020] For each type of electric hydrogen production unit, determine the total hydrogen production amount according to the hydrogen production rate and the load data corresponding to the electric hydrogen production unit type, and determine the gas-to-electricity conversion balance constraint corresponding to the electric hydrogen production unit type according to the hydrogen production rate, the load data and the total hydrogen production;

[0021] Determining upper and lower limits of the electric load corresponding to the type of hydrogen production unit according to the load data and the total capacity of the unit corresponding to the type of hydrogen production unit;

[0022] Determining a hydrogen production demand constraint corresponding to the type of hydrogen production unit according to the total hydrogen production amount and the preset total hydrogen demand amount;

[0023] The unit operation constraints corresponding to the type of hydrogen production unit are determined based on the gas-to-electricity conversion balance constraints, the upper and lower limit constraints of the electric load, and the hydrogen production demand constraints.

[0024] In one embodiment, determining the power system operation constraints corresponding to the electric hydrogen production system based on the load data includes:

[0025] Based on the power balance characteristics of each node within the power system, the total power generation power of each type of generator set under the node, the transmission power of the transmission channel between nodes, the basic power load, and the total power load of each type of hydrogen production unit are obtained;

[0026] Determining the power balance constraint of the power system corresponding to the electric hydrogen production system according to the total generated power, the transmission power, the basic power load and the total power load of the electric hydrogen production unit;

[0027] Obtaining an inter-node transmission capacity of each node in the power system, and determining a transmission power constraint of the power system corresponding to the electric hydrogen production system based on the transmission capacity and the transmission power;

[0028] Obtaining a carbon emission factor corresponding to a generator set at each node of the power system and a preset carbon emission threshold of the power system, and determining a carbon emission constraint of the power system corresponding to the electric hydrogen production system based on the carbon emission factor, the generated power, and the preset carbon emission threshold;

[0029] Based on the power and electricity balance constraint, the transmission power constraint and the carbon emission constraint, the power system operation constraint corresponding to the electric hydrogen production system is determined.

[0030] In one embodiment, determining the corresponding objective function according to the operation cost function in the operation planning model includes:

[0031] Obtaining the generator set operating cost, generator set operation and maintenance cost, generator set carbon emission cost, construction cost of each average unit capacity corresponding to each type of hydrogen production unit, and total hydrogen production income of each generator set in the power system corresponding to the hydrogen production system;

[0032] The objective function is determined based on the operating cost of the generator set, the operation and maintenance cost of the generator set, the carbon emission cost of the generator set, the construction cost per unit capacity of each of the electric hydrogen production units and the total hydrogen production income.

[0033] In one embodiment, the integrating the unit operating constraints and the power system operating constraints with the objective function to form the operation planning model, wherein the operation planning model determines, based on the unit operating constraints and the power system operating constraints, that the objective function is minimized and outputs the corresponding operating parameters, including:

[0034] The unit operation constraints and the power system operation constraints are input into the operation planning model, and the operation planning model determines, based on the output value of the objective function, the unit operation constraints and the power system operation constraints, the generated power of each type of generator set in the power system where the electric hydrogen production system is located, the transmission power between nodes, the capacity and electrical load of the electric hydrogen production set when the objective function is minimized; and the total power generation cost of the power system where the electric hydrogen production system is located is determined based on the various operating parameters of the power system output when the objective function of the operation planning model is minimized;

[0035] Determining the corresponding levelized cost of electricity according to the power generation power of the power system generator set corresponding to the electric hydrogen production system and the total power generation cost;

[0036] Obtaining the original total power generation cost and original carbon emissions corresponding to the power system when it is not constrained, and the carbon emissions of the power system under the unit operation constraints and the power system operation constraints;

[0037] determining a carbon emission reduction cost based on the total power generation cost, the original total power generation cost, the original carbon emissions, and the carbon emissions;

[0038] According to the capacity and electric load of each type of hydrogen production unit in the power system output when the objective function of the operation planning model is minimized, the construction cost, total hydrogen production and hydrogen production income corresponding to each type of hydrogen production unit are determined.

[0039] In a second aspect, the present application provides an operation planning simulation device for an electric hydrogen production system, the device comprising:

[0040] An acquisition module is used to obtain the type of hydrogen production unit, load data, hydrogen production rate and cost data corresponding to the hydrogen production system;

[0041] a first determining module, configured to determine, based on the type of the hydrogen production unit, the load data, and the hydrogen production rate, unit operation constraints corresponding to the hydrogen production system, and determine, based on the load data, power system operation constraints corresponding to the hydrogen production system;

[0042] A second determination module is configured to determine an operation cost function corresponding to the electric hydrogen production system based on the cost data, and generate an objective function of an operation planning model corresponding to the electric hydrogen production system based on the operation cost function;

[0043] An operation module is used to integrate the unit operation constraints and the power system operation constraints with the objective function in the operation planning model to form an operation planning model for the electric hydrogen production system. The operation planning model determines that when the objective function is minimized based on the unit operation constraints and the power system operation constraints, the corresponding operation parameters are output, and a planning operation strategy for the electric hydrogen production system is determined based on the operation parameters.

[0044] In a third aspect, the present application provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0045] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the above method when executed by a processor.

[0046] In a fifth aspect, the present application provides a computer program product, comprising a computer program, which implements the steps of the above method when executed by a processor.

[0047] The above-mentioned operation planning simulation method, apparatus, computer equipment, computer-readable storage medium, and computer program product for the hydrogen production system determine the unit operation constraints based on the hydrogen production unit type, load data, and hydrogen production rate, determine the power system operation constraints based on the load data, and generate the objective function of the operation planning model corresponding to the hydrogen production system based on the operation cost function. When the objective function determined based on the operation cost function is minimized based on the operation planning model, the corresponding operating parameters are output, and the planned operation strategy of the hydrogen production system is determined based on the operating parameters. Compared with the traditional operation control based on detailed modeling for each unit, this solution constructs multiple constraints and operation planning models by utilizing the hydrogen production unit type, load data, hydrogen production rate, and cost data. Based on the multiple constraints and the objective functions in the operation planning model, parameter information for the operation model of the hydrogen production system is determined. Based on this parameter information, it is determined how to operate the hydrogen production system, thereby improving the operation efficiency of the hydrogen production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the accompanying drawings needed to be used in the description of the embodiments of the present application or the related art will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0049] Figure 1 A flowchart of a method for simulating operation planning of an electricity-to-hydrogen system in an embodiment is shown.

[0050] Figure 2 A flowchart of a method for simulating operation planning of an electricity-to-hydrogen system in an embodiment is shown.

[0051] Figure 3 A flowchart of a method for simulating operation planning of an electricity-to-hydrogen system in an embodiment is shown.

[0052] Figure 4 A block diagram of an apparatus for simulating operation planning of an electricity-to-hydrogen system in an embodiment is shown.

[0053] Figure 5 An internal structure diagram of a computer device in an embodiment is shown. DETAILED DESCRIPTION

[0054] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0055] In an embodiment, as shown in Figure 1 , a method for simulating operation planning of an electricity-to-hydrogen system is provided. This embodiment illustrates the method applied to a terminal. It should be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and can be realized through the interaction of the terminal and the server, including the following steps S202 to S208. Among them:

[0056] Step S202, obtaining the electricity-to-hydrogen unit type, load data, hydrogen production rate and cost data corresponding to the electricity-to-hydrogen system.

[0057] Among them, the electric hydrogen production system can be a system for carrying out hydrogen production in the power system, which corresponds to a power generation system for supplying power to the electric hydrogen production system. The electric hydrogen production system includes multiple electric hydrogen production unit types, each electric hydrogen production unit type can have different types of electric hydrogen production units, and each electric hydrogen production unit can have different unit capacities. For example, the electric hydrogen production unit types in the electric hydrogen production system include but are not limited to P2G units based on AEC (Alkaline Electrolysis Cell, alkaline electrolysis cell) technology, P2G units based on PEMEC (polymer electrolyte membrane electrolysis cell, polymer electrolyte membrane electrolysis cell) technology, and P2G units based on SOEC (solid oxide electrolysis cell, solid oxide electrolysis cell) technology.

[0058] The above-mentioned electric hydrogen production system can be distributed in multiple geographical locations. For example, corresponding electric hydrogen production systems can be deployed in multiple provinces. For each province, based on the inventory of each electric hydrogen production unit in the electric hydrogen production system, the electric hydrogen production units can be divided into three types: small, medium and large. Among them, small units represent electric hydrogen production units with a capacity of 0-100MW (megawatts), medium-sized units represent electric hydrogen production units with a capacity of 100-300MW, and large units represent electric hydrogen production units with a capacity of more than 300MW. Each electric hydrogen production unit type consists of the technical type and capacity type of the electric hydrogen production unit. The terminal can obtain the electric hydrogen production unit type corresponding to the above-mentioned electric hydrogen production system. In addition, the terminal can also obtain the load data, hydrogen production rate and cost data corresponding to the electric hydrogen production system.

[0059] The terminal can be a device used to control the operation of each hydrogen production unit in the hydrogen production system. The load data represents the electrical load corresponding to the hydrogen production unit and may also include the power generation capacity of the generator set in which the hydrogen production unit is located. The hydrogen production rate represents the conversion rate of hydrogen produced by the hydrogen production unit. The cost data represents the cost of building and operating the hydrogen production system and units.

[0060] Step S204: determining the unit operation constraints corresponding to the hydrogen production system according to the hydrogen production unit type, load data and hydrogen production rate, and determining the power system operation constraints corresponding to the hydrogen production system according to the load data.

[0061] To ensure the normal operation of the hydrogen production unit, it is necessary to determine the unit operation constraints and power system operation constraints for the hydrogen production unit when controlling its operation. The unit operation constraints refer to the operation constraints imposed on the hydrogen production unit itself when the hydrogen production unit is operating, while the power system operation constraints refer to the operation constraints imposed on the power system when the hydrogen production unit is operating.

[0062] The terminal can determine the unit operation constraints corresponding to the electric hydrogen production system based on the above-mentioned electric hydrogen production unit type, load data and hydrogen production rate. The above-mentioned unit operation constraints may include multiple constraints, and the terminal can form unit operation constraints including multiple constraints by establishing an operation simulation model. The terminal can also determine the power system operation constraints corresponding to the electric hydrogen production system based on the above-mentioned load data. The power system of the above-mentioned power system operation constraints may be the power system where the electric hydrogen production unit is located. The power system operation constraints may include multiple constraints. The terminal can predict the planning operation strategy for each type of electric hydrogen production unit in the electric hydrogen production system by combining the unit operation constraints and the power system operation constraints.

[0063] Step S206 : determining an operation cost function corresponding to the electric hydrogen production system based on the cost data, and generating an objective function of an operation planning model corresponding to the electric hydrogen production system based on the operation cost function.

[0064] The cost data may include multiple data items related to the costs of the hydrogen production system, including revenue data. Based on the cost data, the terminal can determine an operating cost function for the hydrogen production system. The operating cost function represents a function based on the construction and operating costs of the hydrogen production unit, as well as the revenue generated by the hydrogen production unit. The terminal can use the operating cost function to form the objective function of a medium- and long-term planning model, which determines how the hydrogen production system should operate based on costs and revenue, thereby optimizing its operation.

[0065] Step S208: According to the objective function in the operation planning model, the unit operation constraints and the power system operation constraints are integrated with the objective function to form an operation planning model for the electric hydrogen production system. The operation planning model determines when the objective function is minimized based on the unit operation constraints and the power system operation constraints, outputs the corresponding operating parameters, and determines the planning and operation strategy of the electric hydrogen production system based on the operating parameters.

[0066] Among them, the terminal can determine the objective function corresponding to the operation planning model in combination with the operation cost function in the operation planning model. The objective function can be used to determine the parameters related to the planning operation strategy of the electric hydrogen production system. When using the operation planning model to determine the operating parameters, the terminal can integrate the unit operation constraints and the power system operation constraints with the objective function to form an operation planning model for the electric hydrogen production system. The operation planning model can determine the minimum value of the objective function under the specific constraints based on the unit operation constraints and the power system operation constraints, and output the various operating parameters presented by the corresponding variables in the objective function when the objective function is at the minimum value. Among them, when the objective function is minimum, it means that the total power generation cost of the electric hydrogen production system is minimized, so that the terminal can determine the planning operation strategy of the electric hydrogen production system based on the various operating parameters, so that the total power generation cost is minimized when controlling the operation of the electric hydrogen production system.

[0067] In the above-mentioned operation planning simulation method for the hydrogen production system, the unit operating constraints are determined based on the hydrogen production unit type, load data, and hydrogen production rate. The power system operation constraints are determined based on the load data. Based on the operation cost function, the objective function of the operation planning model corresponding to the hydrogen production system is generated. When the objective function determined based on the operation cost function is minimized based on the operation planning model, the corresponding operating parameters are output, and the planned operation strategy of the hydrogen production system is determined based on the operating parameters. Compared with the traditional operation control based on detailed modeling for each unit, this solution constructs multiple constraints and operation planning models by utilizing the hydrogen production unit type, load data, hydrogen production rate, and cost data. Based on the multiple constraints and the objective functions in the operation planning model, parameter information for the operation model of the hydrogen production system is determined. Based on this parameter information, the operation of the hydrogen production system is determined, thereby improving the operating efficiency of the hydrogen production system.

[0068] In one embodiment, the type of hydrogen production unit, load data, hydrogen production rate and cost data corresponding to the hydrogen production system are obtained, including: determining the type of hydrogen production unit of each hydrogen production unit according to the technical category and capacity of the electrolytic cell of each hydrogen production unit in the hydrogen production system; for each hydrogen production unit type, obtaining the load data, installed capacity, energy conversion efficiency and number of units of each hydrogen production unit corresponding to the hydrogen production unit type, and determining the average energy conversion efficiency corresponding to the hydrogen production unit type according to the installed capacity, energy conversion efficiency and number of units; determining the hydrogen production rate corresponding to the hydrogen production unit type according to the average energy conversion efficiency and the preset lower calorific value of hydrogen; obtaining the unit construction cost and operation and maintenance cost corresponding to each hydrogen production unit in the hydrogen production unit type, and determining the average unit construction cost and average operation and maintenance cost corresponding to the hydrogen production unit type according to the unit construction cost, to obtain cost data.

[0069] In this embodiment, the above-mentioned electric hydrogen production system may include multiple electric hydrogen production units. The terminal can determine the type of electric hydrogen production unit corresponding to each electric hydrogen production unit based on the electrolytic cell technology and capacity of each electric hydrogen production unit in the above-mentioned electric hydrogen production system. For example, the terminal determines the type based on the inventory of electric hydrogen production units. The terminal may classify 0-100MW as a small unit, 100-300MW as a medium-sized unit, and 300MW and above as a large unit. The terminal can thus determine the relevant parameters for each type of electric hydrogen production unit separately.

[0070] For each type of hydrogen production unit, the terminal can obtain the load data, installed capacity, energy conversion efficiency, and number of units corresponding to each hydrogen production unit type. There can be multiple hydrogen production units, each of which can correspond to a load data set, an installed capacity, and an energy conversion efficiency. The energy conversion efficiency can indicate the efficiency of the hydrogen production unit in converting electricity into hydrogen. Based on the installed capacity, energy conversion efficiency, and number of units, the terminal can determine the average energy conversion efficiency corresponding to the hydrogen production unit type.

[0071] Among them, the above-mentioned hydrogen production rate can correspond to the type of electric hydrogen production unit, and the hydrogen production rate of different types of electric hydrogen production units can be different. The above-mentioned hydrogen production rate can be determined based on the average energy conversion efficiency corresponding to the type of electric hydrogen production unit. The terminal can then obtain a preset lower calorific value of hydrogen, for example, 1.27 kJ / g, and determine the hydrogen production rate corresponding to the type of electric hydrogen production unit based on the average energy conversion efficiency and the above-mentioned lower calorific value of hydrogen. In addition, the terminal can obtain the construction cost of each unit capacity and the operation and maintenance cost of each unit capacity corresponding to each electric hydrogen production unit in the type of electric hydrogen production unit, and determine the construction cost of the average unit capacity and the operation and maintenance cost of the average unit capacity corresponding to the type of electric hydrogen production unit based on each unit construction cost to obtain cost data. Among them, the unit construction cost can be the construction cost corresponding to the unit capacity of the electric hydrogen production unit, and the operation and maintenance cost can be the cost required for operation and maintenance after the construction of the electric hydrogen production unit is completed.

[0072] Specifically, the terminal can determine the hydrogen production rate corresponding to the type of hydrogen production unit based on the average energy conversion efficiency. The terminal can determine the energy conversion efficiency by clustering the units. The energy conversion efficiency of the hydrogen production units at each location determined by clustering the units can be specifically expressed as:

[0073]

[0074] Among them, the scope is the electric hydrogen production system in each province. is the weighted average of the energy conversion efficiency corresponding to the k-type capacity model unit of the m-th type P2G (electricity to hydrogen) technology in province n, that is, the above average energy conversion efficiency, and The actual installed capacity and energy conversion efficiency of the existing units of type k capacity model corresponding to the mth type of P2G technology in province n, N ex is the number of P2G units of this model in the province. After the terminal determines the energy conversion efficiency of each model of electric hydrogen production unit in each province, it can determine the hydrogen production rate of each type of unit, which can be specifically expressed as:

[0075]

[0076] in, is the hydrogen production rate corresponding to the k-type capacity model unit of the m-th type P2G technology in province n, H LHV It is the lower heating value of hydrogen.

[0077] The terminal can also determine other characteristic data of the power-to-hydrogen unit in addition to technical data, such as the above-mentioned average unit construction cost and average operation and maintenance cost. Among them, the terminal can use the province as the scope, and based on the construction and operation and maintenance cost data of the existing P2G units in each province, the unit clustering method can be used to determine the cost data of small units, medium units, and large units in each province. Specifically, it can be expressed as:

[0078]

[0079] in, and are the weighted averages of the unit capacity construction cost and operation and maintenance cost corresponding to the k-type capacity model unit of the m-th type P2G technology in province n, namely the above average unit construction cost and average operation and maintenance cost, and The actual unit construction cost and operation and maintenance cost of existing units of type k capacity model with m-th type P2G technology in province n respectively.

[0080] Through this embodiment, the terminal can determine the hydrogen production rate corresponding to each type based on the type of hydrogen production unit and the energy conversion efficiency; and based on each hydrogen production unit, determine the load data and cost data in turn, and then form the overall relevant data through averaging, and perform operation analysis of the hydrogen production unit based on these data, thereby improving the efficiency of the analysis.

[0081] In one embodiment, an operating cost function corresponding to the electric hydrogen production system is determined based on cost data, including: for each type of electric hydrogen production unit, the corresponding unit cost function is determined based on the average unit capacity construction cost, operation and maintenance cost and the total unit capacity corresponding to the electric hydrogen production unit type; the electric hydrogen production unit revenue function corresponding to the electric hydrogen production unit type is determined based on the total hydrogen production volume corresponding to the electric hydrogen production unit type and the preset unit hydrogen production revenue; and the operating cost function is obtained based on the unit cost function and the electric hydrogen production unit revenue function.

[0082] In this embodiment, the terminal can combine the above-determined cost data to construct an operating cost function corresponding to the electric hydrogen production system, wherein the operating cost function can include multiple types of functions, and each type of electric hydrogen production unit can correspond to a different operating cost function.

[0083] For each type of hydrogen production unit, the terminal can determine the corresponding unit cost function based on the average unit construction cost per capacity, the average unit operation and maintenance cost per capacity, and the total unit capacity corresponding to the hydrogen production unit type. The terminal can also obtain the total hydrogen production volume and preset unit hydrogen production revenue of the hydrogen production unit corresponding to the hydrogen production unit type. Based on the total hydrogen production volume and preset unit hydrogen production revenue corresponding to the hydrogen production unit type, the terminal can determine the corresponding hydrogen production unit revenue function. Based on the unit cost function and the hydrogen production unit revenue function, the terminal can derive the operating cost function.

[0084] Specifically, the above-mentioned operating cost function is based on the cost function and the benefit function. Among them, the cost of the electric hydrogen production unit includes the equipment construction cost and the operation and maintenance cost. Based on the above-mentioned average unit capacity construction cost and the average unit capacity operation and maintenance cost, the terminal can obtain the cost function. For example, taking the provincial electric hydrogen production unit as an example, the total cost function (unit cost function) of the electric hydrogen production unit can be expressed as:

[0085]

[0086] in, is the total investment cost of the P2G unit in province n. In addition, the terminal can also determine the profit function of the electric hydrogen production unit based on the total hydrogen production volume corresponding to the above-mentioned electric hydrogen production unit type and the preset unit hydrogen production income, which can be specifically expressed as:

[0087] Among them, Y n is the total hydrogen production income of n power-saving hydrogen production units, Q n,t is the total amount of hydrogen produced per hour by the power-saving hydrogen production unit, that is, the above-mentioned total hydrogen production amount, and r is the revenue per kilogram of hydrogen, that is, the above-mentioned preset unit hydrogen production revenue.

[0088] Through this embodiment, the terminal can combine the unit cost function and the electric hydrogen production unit profit function to determine the operating cost function, so that the terminal analyzes the planning and operation strategy of the electric hydrogen production system based on the operating cost function, thereby improving the efficiency of the electric hydrogen production system operation analysis.

[0089] In one embodiment, the unit operation constraints corresponding to the electricity-to-hydrogen system are determined according to the electricity-to-hydrogen unit type, the load data, and the hydrogen production rate, including: for each electricity-to-hydrogen unit type, determining the total hydrogen production according to the hydrogen production rate corresponding to the electricity-to-hydrogen unit type and the load data, and determining the gas-to-electricity conversion balance constraint corresponding to the electricity-to-hydrogen unit type according to the hydrogen production rate, the load data, and the total hydrogen production; determining the upper and lower limits of the electrical load corresponding to the electricity-to-hydrogen unit type according to the load data and the total capacity of the units corresponding to the electricity-to-hydrogen unit type; determining the hydrogen production demand constraint corresponding to the electricity-to-hydrogen unit type according to the total hydrogen production and the total preset hydrogen demand; and determining the unit operation constraint corresponding to the electricity-to-hydrogen unit type according to the gas-to-electricity conversion balance constraint, the upper and lower limits of the electrical load, and the hydrogen production demand constraint.

[0090] In this embodiment, when performing operation analysis of the electricity-to-hydrogen system, the terminal can determine the corresponding constraint conditions based on the technical characteristics of the electricity-to-hydrogen system. The terminal can determine the corresponding unit operation constraint for different types of electricity-to-hydrogen units. The unit operation constraint represents parameters related to the unit operation itself.

[0091] For example, for each electricity-to-hydrogen unit type, the unit operation constraint includes the gas-to-electricity conversion balance constraint, the upper and lower limits of the electrical load constraint, and the hydrogen production demand constraint. The gas-to-electricity conversion balance constraint indicates that the total hydrogen production needs to be balanced with the consumed electrical energy; the upper and lower limits of the electrical load constraint indicate that the electrical load of the electricity-to-hydrogen unit does not exceed the unit capacity; and the hydrogen production demand constraint indicates that the total hydrogen production of the electricity-to-hydrogen unit needs to meet the total hydrogen demand of the corresponding region.

[0092] The terminal can determine the total hydrogen production according to the hydrogen production rate corresponding to the electricity-to-hydrogen unit type and the load data, and determine the gas-to-electricity conversion balance constraint corresponding to the electricity-to-hydrogen unit type according to the hydrogen production rate, the load data, and the total hydrogen production. For the upper and lower limits of the electrical load constraint, the terminal can determine the upper and lower limits of the electrical load corresponding to the electricity-to-hydrogen unit type according to the load data and the total capacity of the units corresponding to the electricity-to-hydrogen unit type. For the hydrogen production demand constraint, the terminal can determine the hydrogen production demand constraint corresponding to the electricity-to-hydrogen unit type according to the total hydrogen production and the total preset hydrogen demand. Thus, the terminal can determine the unit operation constraint corresponding to the electricity-to-hydrogen unit type according to the gas-to-electricity conversion balance constraint, the upper and lower limits of the electrical load, and the hydrogen production demand constraint.

[0093] Specifically, the gas-to-electricity conversion balance constraint can be specifically expressed as:

[0094] wherein, is the electrical load corresponding to the k type capacity model unit of the m type P2G technology in the n province, i.e. the load data, Q n，t is the total hydrogen production per hour of the P2G unit in the province, i.e. the total hydrogen production.

[0095] The upper and lower limit constraints of electric load can be specifically expressed as: in, It is the total capacity of the K-type capacity model units of the m-th type of electric hydrogen production technology in province n, that is, the total capacity of the above-mentioned units.

[0096] The hydrogen production demand constraint can be specifically expressed as: Among them, D n It is the total annual hydrogen demand of the province.

[0097] Through this embodiment, the terminal can combine multiple constraints to form unit operation constraints corresponding to each type of hydrogen production unit, and perform operation analysis of the hydrogen production unit based on the unit operation constraints, thereby improving analysis efficiency.

[0098] In one embodiment, the power system operation constraints corresponding to the electric hydrogen production system are determined based on the load data, including: for the power balance characteristics of each node within the power system, obtaining the total power generation power of each type of generator set under the node, the transmission power of the transmission channel between nodes, the basic power load and the total power load of each type of electric hydrogen production unit; determining the power and quantity balance constraints of the power system corresponding to the electric hydrogen production system based on the total power generation power, transmission power, basic power load and the total power load of the electric hydrogen production unit; obtaining the inter-node transmission capacity of each node under the power system, and determining the power transmission power constraints of the power system corresponding to the electric hydrogen production system based on the transmission capacity and transmission power; obtaining the carbon emission factors corresponding to the generator sets of each node in the power system and the preset carbon emission threshold of the power system, and determining the carbon emission constraints of the power system corresponding to the electric hydrogen production system based on the carbon emission factors, power generation power and the preset carbon emission threshold; determining the power system operation constraints corresponding to the electric hydrogen production system based on the power and quantity balance constraints, transmission power constraints and carbon emission constraints.

[0099] In this embodiment, in addition to determining the constraints on the operation of the hydrogen production unit itself, the terminal can also determine the operating constraints of the power generation system corresponding to the hydrogen production unit to ensure the external operation safety of the hydrogen production system. Among them, the power system operation constraints include various constraints, such as power and electricity balance constraints, transmission power constraints and emission constraints. For each type of hydrogen production unit, the terminal can obtain the power generation power, transmission power, number of transmission channels, basic power load and number of generator sets corresponding to the type of hydrogen production unit. Specifically, for the power balance characteristics of each node within the power system, the terminal obtains the total power generation power of each type of generator set under the node, the transmission power of the transmission channel between nodes, the basic power load and the total power load of each type of hydrogen production unit. Among them, the terminal can determine the corresponding constraints based on the above parameters.

[0100] As for the power balance constraint, it means that the supply and consumption of electricity in a certain area should be balanced. The terminal can determine the power balance constraint of the power system corresponding to the electric hydrogen production system based on the total power generation power, transmission power, basic power load and the total power load of the electric hydrogen production unit.

[0101] For the transmission power constraint, it means that the transmission power between regions should not exceed the power limit of the transmission line. The terminal can obtain the inter-node transmission capacity of each node in the power system, and determine the transmission power constraint of the power system corresponding to the electric hydrogen production system based on the transmission capacity and transmission power.

[0102] For emission constraints, which represent limits on the total amount of CO2 emitted by the power system, the terminal can obtain the carbon emission factor and preset carbon emission threshold corresponding to the generator set. Based on the carbon emission factor, power generation, and preset carbon emission threshold, the terminal can determine the emission constraint corresponding to the type of hydrogen production unit. Thus, the terminal can obtain the carbon emission factor corresponding to the generator set at each node in the power system and the preset carbon emission threshold for the power system. Based on the carbon emission factor, power generation, and preset carbon emission threshold, the terminal can determine the carbon emission constraint for the power system corresponding to the hydrogen production system.

[0103] Specifically, the power balance constraint can be expressed as:

[0104]

[0105] in, is the power generation of each type of generator set in province n at time t, N gen is the total number of generator set types, is the transmission power of the AC and DC transmission lines connected to province n at time t (input is defined as positive and output is defined as negative), N line is the total number of transmission channels connected to province n, L n，t is the basic power load of province n at time t.

[0106] Taking the above region as an example, the transmission power constraint can be expressed as follows: in, and are the rated transmission capacity and transmission power at time t of the transmission project between province n and province z respectively.

[0107] The emission constraint can be specifically expressed as:

[0108]

[0109] Among them, r i gen is the carbon emission factor of the i-th type of generator set, N prois the total number of provinces considered in the optimization model, T is the total number of time periods of the optimization model, O lim is the carbon emission limit of the entire system, that is, the preset carbon emission threshold mentioned above. The carbon emission multiplied by the unit carbon emission cost is the total carbon emission cost of the system C co2 .

[0110] Through this embodiment, the terminal can combine multiple constraints to form operation constraints of the power system corresponding to each type of hydrogen production unit, and perform operation analysis of the hydrogen production unit based on the power system operation constraints, thereby improving the efficiency of the analysis.

[0111] In one embodiment, the corresponding objective function is determined based on the operating cost function in the operation planning model, including: obtaining the generator set operating cost, generator set operation and maintenance cost, generator set carbon emission cost, and the construction cost of each average unit capacity corresponding to each type of hydrogen production unit and the total hydrogen production income of each generator set in the power system corresponding to the hydrogen production system; determining the objective function based on the generator set operating cost, generator set operation and maintenance cost, generator set carbon emission cost, and the construction cost of each average unit capacity of each hydrogen production unit and the total hydrogen production income.

[0112] In this embodiment, the terminal can determine the objective function for optimizing the operation of the electric hydrogen production system based on the operation cost function in the above-mentioned operation planning model. For example, the terminal can first obtain the generator set operating cost, generator set operation and maintenance cost, generator set carbon emission cost, and the construction cost of each average unit capacity corresponding to each type of electric hydrogen production unit in the power system corresponding to each electric hydrogen production system. Among them, the above-mentioned various cost data can be obtained by the terminal from the database corresponding to the electric hydrogen production system. Therefore, the terminal can determine the objective function based on the generator set operating cost, generator set operation and maintenance cost, generator set carbon emission cost, the construction cost of each average unit capacity of each electric hydrogen production unit and the total hydrogen production income.

[0113] Specifically, the objective function can be a function for finding a system operation plan with the best cost. Then the terminal can construct an objective function with the lowest power generation cost as the goal, which can be specifically expressed as: in, and are the sum of the operating cost and operation and maintenance cost of the generator sets in each province in the entire power system, C P2G is the sum of the construction costs of various electricity-saving hydrogen production technologies, C co2 is the sum of the carbon emission costs of power generation units in each province, and Y is the sum of the hydrogen production benefits of P2G technology in each province, that is, the total hydrogen production benefits mentioned above. The terminal can determine the Y of each type of electric hydrogen production unit mentioned above. n The sum of , we get Y.

[0114] Through this embodiment, the terminal can combine multiple cost data to determine the objective function for operation optimization, and based on the objective function, determine the planning and operation strategy that minimizes the operation cost of the electric hydrogen production system, thereby improving the efficiency of operation analysis.

[0115] In one embodiment, the unit operation constraints and the power system operation constraints are integrated with the objective function to form an operation planning model, and the operation planning model determines the output of corresponding operation parameters when the objective function is minimized based on the unit operation constraints and the power system operation constraints, including: inputting the unit operation constraints and the power system operation constraints into the operation planning model, and the operation planning model determines the generated power of each type of generator set in the power system where the electric hydrogen production system is located, the transmission power between nodes, the capacity and electric load of the electric hydrogen production set based on the output value of the objective function, the unit operation constraints and the power system operation constraints; and the output of each operation parameter of the power system when the objective function is minimized by the operation planning model. The total power generation cost of the power system where the hydrogen production system is located is determined by the number; the corresponding levelized cost of electricity is determined according to the power generation power of the power system generator set corresponding to the hydrogen production system and the total power generation cost; the original total power generation cost and original carbon emissions corresponding to the power system when it is not constrained, as well as the carbon emissions of the power system under the unit operation constraints and the power system operation constraints are obtained; the carbon emission reduction cost is determined based on the total power generation cost, original total power generation cost, original carbon emissions and carbon emissions; the construction cost, total hydrogen production and hydrogen production income corresponding to each type of hydrogen production unit are determined based on the capacity and power load of each type of hydrogen production unit in the power system output when the objective function of the operation planning model is minimized.

[0116] In this embodiment, the operation planning model may include an objective function. The terminal may input the aforementioned constraints into the operation planning model, which then optimizes the objective function based on the constraints. For example, the terminal may input the unit operation constraints and the power system operation constraints into the operation planning model. The operation planning model then determines, based on the output values ​​of the objective function, the unit operation constraints, and the power system operation constraints, the generated power of each type of generator set in the power system where the hydrogen production system resides, the transmission power between nodes, the capacity of the hydrogen production unit, and the load when the objective function is minimized. The total power generation cost of the power system where the hydrogen production system resides is determined based on the power system operation parameters output by the operation planning model when the objective function is minimized. Unit operation constraints include gas-to-electricity conversion balance constraints, load upper and lower limits, and hydrogen production demand constraints; and power system operation constraints include power balance constraints, transmission power constraints, and emissions constraints. The terminal may then input the gas-to-electricity conversion balance constraints, load upper and lower limits, hydrogen production demand constraints, power balance constraints, transmission power constraints, and emissions constraints into the operation planning model, optimize the objective function based on the aforementioned conditions, and determine the total power generation cost as one of the operation parameters.

[0117] The terminal can also obtain the generated power of the power system generator units corresponding to the electric hydrogen production system and determine the corresponding levelized cost of electricity based on the total power generation cost and the generated power. Furthermore, the terminal can also obtain the original total power generation cost and original carbon emissions corresponding to the unconstrained power system, as well as the carbon emissions of the power system under the unit operation constraints and power system operation constraints. Based on the total power generation cost, original total power generation cost, original carbon emissions, and carbon emissions, the terminal can determine the carbon emission reduction cost.

[0118] In addition, the terminal can also determine the construction cost, total hydrogen production, and hydrogen production revenue corresponding to each type of hydrogen production unit based on the capacity and power load of each type of hydrogen production unit in the power system output when the objective function of the operation planning model is minimized, and obtain the construction cost, total hydrogen production, and hydrogen production revenue corresponding to each type of hydrogen production unit, and output the corresponding operating parameters based on the total power generation cost, levelized cost of electricity, carbon emission reduction cost, construction cost, total hydrogen production, and hydrogen production revenue. That is, the terminal can determine the planning and operation strategy of the hydrogen production system within the limits of the above-mentioned total power generation cost, levelized cost of electricity, carbon emission reduction cost, construction cost, total hydrogen production, and hydrogen production revenue, so that the costs and benefits of the hydrogen production system during operation meet the above-mentioned operating parameters.

[0119] Specifically, if Figure 2 As shown, Figure 2 The figure is a flow chart of the model building steps in one embodiment. The terminal can optimize the objective function in the operation planning model by combining the unit operation constraints and the power system operation constraints, and output the corresponding operation-related parameters. Among them, the total power generation cost can be the total power generation cost of the entire system. The terminal can calculate the total power generation cost G by calculating the sum of the costs of various types of hydrogen production units. all , which can be specifically expressed as: The terminal can also determine the levelized cost of electricity G based on the total cost of power generation and the total power generation of all provinces in the entire system at all times. lcoe , which can be specifically expressed as:

[0120] Carbon emission reduction cost refers to the incremental cost of reducing unit CO2 emissions, which can be expressed as: Among them, G all and are the total social power generation costs under the scenarios of considering and not considering low-carbon policies, O all and They are the corresponding total system CO2 emissions under the low-carbon policy scenarios and without considering them.

[0121] In addition, the above operating parameters may also include the total cost of the unit construction, that is, Total hydrogen production Q n,t and hydrogen production revenue Y, etc. The terminal determines the planned operation strategy of the electric hydrogen production system based on the above operating parameters. For example, when the parameters of each unit in the electric hydrogen production system are adjusted to the corresponding numerical values, the requirements of the above operating parameters can be met.

[0122] Through this embodiment, the terminal can combine the objective function of the operation planning model and multiple constraints to form multiple operating parameters, and determine the planning and operation strategy of the electric hydrogen production system based on the multiple operating parameters, thereby improving the efficiency of the electric hydrogen production system operation analysis.

[0123] In an exemplary embodiment, Figure 3 As shown, Figure 3 This is a flow chart of a method for simulating the operation planning of an electric hydrogen production system according to another embodiment. In this embodiment, the following steps are included:

[0124] S1 Data Processing: Apply the unit clustering method to determine the technical characteristics of various types of electric hydrogen production technologies in each province, including installed capacity, energy conversion efficiency, hydrogen production rate, etc., as well as data such as construction costs.

[0125] S2 operation model establishment: Based on the technical characteristic data of the provincial electric hydrogen production unit obtained in step S1, the provincial electric hydrogen production technology operation simulation model is established by comprehensively considering the gas-to-electricity conversion balance constraints, upper and lower limits of electric load, and hydrogen production demand constraints of the electric hydrogen production unit.

[0126] S3 Planning model establishment: Based on the economic characteristics data of the provincial electric hydrogen production units obtained in step S1, and taking into account the equipment construction cost, operation and maintenance cost and hydrogen production income of the electric hydrogen production units, a provincial medium- and long-term planning model for electric hydrogen production technology is established, and the above-mentioned operation planning model and objective function are further obtained.

[0127] S4 Comprehensive Model Establishment: Based on the provincial-level models related to hydrogen production technology established in steps S2 and S3, combined with the operation constraints and emission constraints at the power system level, that is, the above-mentioned power system operation constraints, a hydrogen production technology operation simulation and planning model for the regional power system is established with the lowest total power generation cost as the objective function.

[0128] S5 Comprehensive Analysis: Based on the optimization results of the model built in step S4, analytical indicators such as the total power system power generation cost, cost per kilowatt-hour, provincial-level hydrogen production deployment costs / hydrogen production volume and benefits, and system carbon reduction costs are calculated to form corresponding operating parameters. Based on these operating parameters, the terminal then determines the planning and operation strategy of the hydrogen production system.

[0129] Through the above embodiment, the terminal uses the type of hydrogen production unit, load data, hydrogen production rate and cost data to construct multiple constraints and operation planning models. Based on the objective functions in the multiple constraints and operation planning models, the terminal determines the parameter information of the operation model for the hydrogen production system. Based on the parameter information, it determines how to operate the hydrogen production system, thereby improving the operating efficiency of the hydrogen production system. In addition, the terminal simulates the hourly production and operation characteristics of hydrogen production technologies in various provinces within the regional power system through the hydrogen production technology operation simulation and planning model. It is also applicable to the long-term planning optimization problems of power systems containing hydrogen production technology, and can provide guidance and suggestions for the layout and planning of hydrogen production technology in the construction of new power systems. The terminal adds the current typical low-carbon policies as mathematical constraints to the optimization model to analyze the impact of energy policies on hydrogen production technology planning problems. In addition, the terminal can use unit clustering technology to describe the technical and economic characteristics of all types of hydrogen production units in various provinces within the regional power grid in detail and accurately, making the model applicable to power system application scenarios of various time scales above the hour level, with both micro and macro characteristics.

[0130] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0131] Based on the same inventive concept, embodiments of the present application also provide an operation planning simulation device for an electric hydrogen production system, which is used to implement the above-mentioned operation planning simulation method for an electric hydrogen production system. The implementation solution provided by this device is similar to the implementation solution described in the above-mentioned method. Therefore, the specific limitations of one or more embodiments of the operation planning simulation device for an electric hydrogen production system provided below can be found in the above-mentioned limitations of the operation planning simulation method for an electric hydrogen production system, and will not be repeated here.

[0132] In an exemplary embodiment, Figure 4 As shown, an operation planning simulation device for an electric hydrogen production system is provided, comprising: an acquisition module 500, a first determination module 502, a second determination module 504 and an operation module 506, wherein:

[0133] The acquisition module 500 is used to obtain the type of hydrogen production unit, load data, hydrogen production rate and cost data corresponding to the hydrogen production system.

[0134] The first determination module 502 is used to determine the unit operation constraints corresponding to the electric hydrogen production system according to the type of the electric hydrogen production unit, load data and hydrogen production rate, and determine the power system operation constraints corresponding to the electric hydrogen production system according to the load data.

[0135] The second determination module 504 is configured to determine an operation cost function corresponding to the electric hydrogen production system according to the cost data, and generate an objective function of an operation planning model corresponding to the electric hydrogen production system according to the operation cost function.

[0136] The operation module 506 is used to integrate the unit operation constraints and the power system operation constraints with the objective function in the operation planning model to form an operation planning model for the electric hydrogen production system. The operation planning model determines the minimum objective function based on the unit operation constraints and the power system operation constraints, outputs the corresponding operation parameters, and determines the planning operation strategy of the electric hydrogen production system based on the operation parameters.

[0137] In one embodiment, the above-mentioned acquisition module 500 is used to determine the type of each hydrogen production unit according to the electrolytic cell technology category and capacity of each hydrogen production unit in the hydrogen production system; for each hydrogen production unit type, obtain the load data, installed capacity of each unit, energy conversion efficiency and number of units of each hydrogen production unit corresponding to the hydrogen production unit type, and determine the average energy conversion efficiency corresponding to the hydrogen production unit type according to the installed capacity of each unit, the energy conversion efficiency and the number of units; determine the hydrogen production rate corresponding to the hydrogen production unit type according to the average energy conversion efficiency and the preset lower calorific value of hydrogen; obtain the construction cost of each unit capacity and the operation and maintenance cost of each unit capacity corresponding to each hydrogen production unit in the hydrogen production unit type, and determine the average unit capacity construction cost and operation and maintenance cost corresponding to the hydrogen production unit type according to each unit cost to obtain cost data.

[0138] In one embodiment, the second determination module 504 is used to determine, for each type of hydrogen production unit, the corresponding unit cost function according to the average unit capacity construction cost, operation and maintenance cost and the total unit capacity corresponding to the hydrogen production unit type; determine the hydrogen production unit revenue function corresponding to the hydrogen production unit type according to the total hydrogen production volume corresponding to the hydrogen production unit type and the preset unit hydrogen production revenue; and obtain the operating cost function according to the unit cost function and the hydrogen production unit revenue function.

[0139] In one embodiment, the above-mentioned first determination module 502 is used to determine the total hydrogen production amount for each hydrogen production unit type according to the hydrogen production rate and load data corresponding to the hydrogen production unit type, and determine the gas-to-electricity conversion balance constraint corresponding to the hydrogen production unit type according to the hydrogen production rate, load data and the total hydrogen production amount; determine the upper and lower limit constraints of the electric load corresponding to the hydrogen production unit type according to the load data and the total unit capacity corresponding to the hydrogen production unit type; determine the hydrogen production demand constraint corresponding to the hydrogen production unit type according to the total hydrogen production amount and the preset total hydrogen demand; determine the unit operation constraint corresponding to the hydrogen production unit type according to the gas-to-electricity conversion balance constraint, the upper and lower limit constraints of the electric load and the hydrogen production demand constraint.

[0140] In one embodiment, the above-mentioned first determination module 502 is used to obtain the total power generation power of each type of generator set under the node, the transmission power of the transmission channel between nodes, the basic power load and the total power load of each type of hydrogen production unit under the node based on the power balance characteristics of each node within the power system; determine the power and electricity balance constraints of the power system corresponding to the hydrogen production system based on the total power generation power, transmission power, basic power load and the total power load of the hydrogen production unit; obtain the inter-node transmission capacity of each node under the power system, and determine the power transmission power constraints of the power system corresponding to the hydrogen production system based on the transmission capacity and transmission power; obtain the carbon emission factors corresponding to the generator sets of each node in the power system and the preset carbon emission threshold of the power system, and determine the carbon emission constraints of the power system corresponding to the hydrogen production system based on the carbon emission factors, power generation power and the preset carbon emission threshold; determine the power system operation constraints corresponding to the hydrogen production system based on the power and electricity balance constraints, transmission power constraints and carbon emission constraints.

[0141] In one embodiment, the above-mentioned operation module 506 is used to obtain the generator set operating cost, generator set operation and maintenance cost, generator set carbon emission cost, construction cost of each average unit capacity corresponding to each type of hydrogen production unit and total hydrogen production income of each generator set in the power system corresponding to the hydrogen production system; determine the objective function based on the generator set operating cost, generator set operation and maintenance cost, generator set carbon emission cost, construction cost of each average unit capacity of each hydrogen production unit and total hydrogen production income.

[0142] In one embodiment, the above-mentioned operation module 506 is used to input the unit operation constraints and the power system operation constraints into the operation planning model, and the operation planning model determines the power generation power of each type of generator set in the power system where the hydrogen production system is located, the transmission power between nodes, the capacity and electrical load of the hydrogen production set when the objective function is minimized based on the output value of the objective function, the unit operation constraints and the power system operation constraints; determines the total power generation cost of the power system where the hydrogen production system is located based on the various operation parameters of the power system output when the objective function of the operation planning model is minimized; determines the corresponding levelized cost of electricity based on the power generation power and the total power generation cost of the power system generator set corresponding to the hydrogen production system; obtains the original total power generation cost and original carbon emissions corresponding to the power system when it is not constrained, and the carbon emissions of the power system under the unit operation constraints and the power system operation constraints; determines the carbon emission reduction cost based on the total power generation cost, original total power generation cost, original carbon emissions and carbon emissions; determines the construction cost, total hydrogen production and hydrogen production income corresponding to each type of hydrogen production set based on the capacity and electrical load of each type of hydrogen production set in the power system output when the objective function of the operation planning model is minimized.

[0143] Each module in the aforementioned operation planning simulation device for the electric hydrogen production system can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a computer device's memory in the form of software, so that the processor can call and execute the corresponding operations of each module.

[0144] In an exemplary embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 5As shown in the figure. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through the system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capability. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with the external terminal in a wired or wireless manner. The wireless manner can be realized through WIFI, mobile cellular network, near field communication (Near Field Communication, NFC) or other technologies. The computer program is executed by the processor to realize an operation planning simulation method of an electric hydrogen production system. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the shell of the computer device, or an external keyboard, touchpad or mouse, etc.

[0145] Those skilled in the art can understand that, Figure 5 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0146] In one exemplary embodiment, a computer device is provided, including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to realize the operation planning simulation method of the electric hydrogen production system described above.

[0147] In one embodiment, a computer readable storage medium is provided, which stores a computer program, and the computer program is executed by the processor to realize the operation planning simulation method of the electric hydrogen production system described above.

[0148] In one embodiment, a computer program product is provided, including a computer program, and the computer program is executed by the processor to realize the operation planning simulation method of the electric hydrogen production system described above.

[0149] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0150] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. In particular, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile memory and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processor involved in the various embodiments provided herein may be, but are not limited to, a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, an artificial intelligence (AI) processor, etc.

[0151] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0152] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. An operation planning simulation method for an electric hydrogen production system, characterized in that: The method comprises: Obtain the type, load data, hydrogen production rate and cost data of the electric hydrogen production unit corresponding to the electric hydrogen production system; According to the type of hydrogen production unit, load data and the hydrogen production rate, the unit operation constraints corresponding to the hydrogen production system are determined, and according to the load data, the power system operation constraints corresponding to the hydrogen production system are determined; the unit operation constraints corresponding to each hydrogen production unit type are determined according to the gas-to-electricity conversion balance constraints, the upper and lower limit constraints of the electric load and the hydrogen production demand constraints; the gas-to-electricity conversion balance constraints corresponding to each hydrogen production unit type are determined according to the hydrogen production rate and the load data corresponding to the hydrogen production unit type, and are determined according to the hydrogen production rate, the load data and the total hydrogen production; the upper and lower limit constraints of the electric load corresponding to each hydrogen production unit type are determined according to the load data and the total capacity of the unit corresponding to the hydrogen production unit type; the hydrogen production demand constraints corresponding to each hydrogen production unit type are determined according to the total hydrogen production and the preset total hydrogen demand; the power The system operation constraints are determined according to the power balance constraints, transmission power constraints and carbon emission constraints; the power balance constraints of the power system are determined by obtaining the total power generation power of each type of generator set under the node, the transmission power of the transmission channel between nodes, the basic power load and the total power load of each type of hydrogen production unit according to the power balance characteristics of each node within the power system, and are determined according to the total power generation power, transmission power, basic power load and the total power load of the hydrogen production unit; the transmission power constraint is determined according to the transmission capacity and the transmission power by obtaining the inter-node transmission capacity of each node under the power system; the carbon emission constraint is determined according to the carbon emission factor, the power generation power and the preset carbon emission threshold by obtaining the carbon emission factor corresponding to the generator set of each node in the power system and the preset carbon emission threshold of the power system; Determine an operating cost function corresponding to the electric hydrogen production system based on the cost data, and generate an objective function of an operation planning model corresponding to the electric hydrogen production system based on the operating cost function; the objective function is determined based on the generator set operating cost, generator set operation and maintenance cost, generator set carbon emission cost, average unit capacity construction cost of each of the electric hydrogen production units, and total hydrogen production revenue of each generator set in the power system corresponding to the electric hydrogen production system; According to the objective function in the operation planning model, the unit operation constraints and the power system operation constraints are integrated with the objective function to form an operation planning model for the electric hydrogen production system. The operation planning model determines that when the objective function is minimized based on the unit operation constraints and the power system operation constraints, the corresponding operating parameters are output, and a planning operation strategy for the electric hydrogen production system is determined based on the operating parameters.

2. The method according to claim 1, characterized in that The obtaining of the type of electric hydrogen production unit, load data, hydrogen production rate and cost data corresponding to the electric hydrogen production system includes: Determining the type of each hydrogen production unit according to the electrolytic cell technology category and capacity of each hydrogen production unit in the hydrogen production system; For each type of hydrogen production unit, obtain the load data, installed capacity, energy conversion efficiency and number of units of each hydrogen production unit corresponding to the hydrogen production unit type, and determine the average energy conversion efficiency corresponding to the hydrogen production unit type based on the installed capacity, energy conversion efficiency and number of units; Determining a hydrogen production rate corresponding to the type of hydrogen production unit according to the average energy conversion efficiency and a preset lower calorific value of hydrogen; Obtain the construction cost per unit capacity and the operation and maintenance cost per unit capacity corresponding to each hydrogen production unit in the hydrogen production unit type, and determine the construction cost and operation and maintenance cost per unit capacity corresponding to the hydrogen production unit type on average based on each of the unit costs to obtain the cost data.

3. The method according to claim 2, characterized in that Determining an operating cost function corresponding to the electric hydrogen production system based on the cost data includes: For each type of hydrogen production unit, determine the corresponding unit cost function according to the construction cost and operation and maintenance cost per unit capacity corresponding to the type of hydrogen production unit and the total unit capacity corresponding to the type of hydrogen production unit; Determining a profit function of the electric hydrogen production unit corresponding to the electric hydrogen production unit type according to the total hydrogen production volume corresponding to the electric hydrogen production unit type and a preset unit hydrogen production profit; The operating cost function is obtained according to the unit cost function and the electric hydrogen production unit profit function.

4. The method according to claim 1, wherein The step of integrating the unit operation constraints and the power system operation constraints with the objective function to form the operation planning model, wherein the operation planning model determines, based on the unit operation constraints and the power system operation constraints, that the objective function is minimized and outputs corresponding operation parameters, includes: Inputting the unit operation constraints and the power system operation constraints into the operation planning model, the operation planning model determining, based on the output value of the objective function, the unit operation constraints and the power system operation constraints, the generated power of each type of generator set in the power system where the hydrogen production system is located, the transmission power between nodes, the capacity and the electrical load of the hydrogen production unit when the objective function is minimized; Determining the total power generation cost of the power system where the hydrogen production system is located based on the various operating parameters of the power system output when the objective function of the operation planning model is minimized; Determining the corresponding levelized cost of electricity according to the power generation power of the power system generator set corresponding to the electric hydrogen production system and the total power generation cost; Obtaining the original total power generation cost and original carbon emissions corresponding to the power system when it is not constrained, and the carbon emissions of the power system under the unit operation constraints and the power system operation constraints; determining a carbon emission reduction cost based on the total power generation cost, the original total power generation cost, the original carbon emissions, and the carbon emissions; According to the capacity and electric load of each type of hydrogen production unit in the power system output when the objective function of the operation planning model is minimized, the construction cost, total hydrogen production and hydrogen production income corresponding to each type of hydrogen production unit are determined.

5. An operation planning simulation device for an electric hydrogen production system, characterized in that: The device comprises: An acquisition module is used to obtain the type of hydrogen production unit, load data, hydrogen production rate and cost data corresponding to the hydrogen production system; The first determination module is used to determine the unit operation constraints corresponding to the electric hydrogen production system according to the electric hydrogen production unit type, load data and the hydrogen production rate, and determine the power system operation constraints corresponding to the electric hydrogen production system according to the load data; the unit operation constraints corresponding to each electric hydrogen production unit type are determined according to the gas-to-electricity conversion balance constraints, the upper and lower limit constraints of the electric load and the hydrogen production demand constraints; the gas-to-electricity conversion balance constraints corresponding to each electric hydrogen production unit type determine the total hydrogen production amount according to the hydrogen production rate and the load data corresponding to the electric hydrogen production unit type, and are determined according to the hydrogen production rate, the load data and the total hydrogen production amount; the upper and lower limit constraints of the electric load corresponding to each electric hydrogen production unit type are determined according to the load data and the total unit capacity corresponding to the electric hydrogen production unit type; the hydrogen production demand constraints corresponding to each electric hydrogen production unit type are determined according to the total hydrogen production amount and the preset total hydrogen demand amount; The power system operation constraints are determined according to power balance constraints, transmission power constraints and carbon emission constraints; the power balance constraints of the power system are determined by obtaining the total power generation power of each type of generator set under the node, the transmission power of the transmission channel between nodes, the basic power load and the total power load of each type of hydrogen production unit according to the power balance characteristics of each node within the power system, and are determined according to the total power generation power, transmission power, basic power load and the total power load of the hydrogen production unit; the transmission power constraint is determined according to the transmission capacity and the transmission power by obtaining the inter-node transmission capacity of each node under the power system; the carbon emission constraint is determined according to the carbon emission factor, the power generation power and the preset carbon emission threshold by obtaining the carbon emission factor corresponding to the generator set of each node in the power system and the preset carbon emission threshold of the power system; A second determination module is configured to determine an operating cost function corresponding to the electric hydrogen production system based on the cost data, and generate an objective function of an operation planning model corresponding to the electric hydrogen production system based on the operating cost function; the objective function is determined based on the generator set operating cost, generator set operation and maintenance cost, generator set carbon emission cost, average unit capacity construction cost of each electric hydrogen production unit, and total hydrogen production revenue of each generator set in the power system corresponding to the electric hydrogen production system; An operation module is used to integrate the unit operation constraints and the power system operation constraints with the objective function in the operation planning model to form an operation planning model for the electric hydrogen production system. The operation planning model determines that when the objective function is minimized based on the unit operation constraints and the power system operation constraints, the corresponding operation parameters are output, and a planning operation strategy for the electric hydrogen production system is determined based on the operation parameters.

6. The device according to claim 5, characterized in that The acquisition module is used to: Determining the type of each hydrogen production unit according to the electrolytic cell technology category and capacity of each hydrogen production unit in the hydrogen production system; For each type of hydrogen production unit, obtain the load data, installed capacity, energy conversion efficiency and number of units of each hydrogen production unit corresponding to the hydrogen production unit type, and determine the average energy conversion efficiency corresponding to the hydrogen production unit type based on the installed capacity, energy conversion efficiency and number of units; Determining a hydrogen production rate corresponding to the type of hydrogen production unit according to the average energy conversion efficiency and a preset lower calorific value of hydrogen; Obtain the construction cost per unit capacity and the operation and maintenance cost per unit capacity corresponding to each hydrogen production unit in the hydrogen production unit type, and determine the construction cost and operation and maintenance cost per unit capacity corresponding to the hydrogen production unit type on average based on each of the unit costs to obtain the cost data.

7. The device according to claim 6, characterized in that The acquisition module is used to: For each type of hydrogen production unit, determine the corresponding unit cost function according to the construction cost and operation and maintenance cost per unit capacity corresponding to the type of hydrogen production unit and the total unit capacity corresponding to the type of hydrogen production unit; Determining a profit function of the electric hydrogen production unit corresponding to the electric hydrogen production unit type according to the total hydrogen production volume corresponding to the electric hydrogen production unit type and a preset unit hydrogen production profit; The operating cost function is obtained according to the unit cost function and the electric hydrogen production unit profit function.

8. The device according to claim 5, characterized in that The operation module is used to: Inputting the unit operation constraints and the power system operation constraints into the operation planning model, the operation planning model determining, based on the output value of the objective function, the unit operation constraints and the power system operation constraints, the generated power of each type of generator set in the power system where the hydrogen production system is located, the transmission power between nodes, the capacity and the electrical load of the hydrogen production unit when the objective function is minimized; Determining the total power generation cost of the power system where the hydrogen production system is located based on the various operating parameters of the power system output when the objective function of the operation planning model is minimized; Determining the corresponding levelized cost of electricity according to the power generation power of the power system generator set corresponding to the electric hydrogen production system and the total power generation cost; Obtaining the original total power generation cost and original carbon emissions corresponding to the power system when it is not constrained, and the carbon emissions of the power system under the unit operation constraints and the power system operation constraints; determining a carbon emission reduction cost based on the total power generation cost, the original total power generation cost, the original carbon emissions, and the carbon emissions; According to the capacity and electric load of each type of hydrogen production unit in the power system output when the objective function of the operation planning model is minimized, the construction cost, total hydrogen production and hydrogen production income corresponding to each type of hydrogen production unit are determined.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 4 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

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