An electrolytic hydrogen production system operation scheduling method, device, equipment and storage medium

Abstract

This application provides a method, apparatus, equipment, and storage medium for scheduling the operation of an electrolysis hydrogen production system, comprising: constructing a scheduling model, the scheduling model including an objective function and constraints aimed at maximizing the obtainable revenue value of the electrolysis hydrogen production system operation, the constraints including power balance constraints and curtailment rate constraints of the electrolysis hydrogen production system, the objective function being constructed based on a first parameter, a second parameter, the green electricity input power of the electrolysis hydrogen production system, the hydrogen sales price per unit, and the electrolysis duration of the electrolysis hydrogen production system, the power balance constraints being constructed based on the curtailment power of the electrolyzers, the electrolysis load of the electrolyzers, and the green electricity input power of the electrolysis hydrogen production system, and the curtailment rate constraints being constructed based on the curtailment power of the electrolyzers and the green electricity input power of the electrolysis hydrogen production system; obtaining the parameter values ​​of the first parameter and the second parameter respectively; and solving the scheduling model based on the parameter values ​​of the first parameter and the second parameter to determine the operating parameters of each electrolyzer in the electrolysis hydrogen production system.

Description

Technical Field

[0001] This application relates to the field of new energy power conversion, and in particular to a method, apparatus, equipment and storage medium for the operation and scheduling of an electrolytic hydrogen production system. Background Technology

[0002] In the scenario of hydrogen production from new energy sources, the fluctuating nature of new energy input causes the electrolysis hydrogen production system to operate in a fluctuating state. Existing electrolysis hydrogen production systems usually need to constantly adjust their power to adapt to the fluctuations in new energy input. However, due to the limited power adjustment rate and operating range, they may not be able to keep up with the changes in new energy in a timely manner, resulting in low utilization of new energy. Summary of the Invention

[0003] This application provides a method, apparatus, equipment, and storage medium for scheduling the operation of an electrolytic hydrogen production system, in order to solve the problem of low utilization rate of new energy in existing new energy hydrogen production scenarios.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, embodiments of this application provide a method for scheduling the operation of an electrolytic hydrogen production system, the method comprising:

[0006] A scheduling model is constructed, comprising an objective function and constraints aimed at maximizing the revenue obtainable from the operation of the electrolysis hydrogen production system. The constraints include power balance constraints and curtailment rate constraints of the electrolysis hydrogen production system. The objective function is constructed based on a first parameter, a second parameter, the green electricity input power of the electrolysis hydrogen production system, the hydrogen sales price per unit, and the electrolysis duration of the electrolysis hydrogen production system. The first parameter is a parameter related to the electrolyzer of the electrolysis hydrogen production system, and the second parameter is a parameter related to the penalty consumption in the electrolysis hydrogen production system. The power balance constraints are constructed based on the curtailment power of the electrolyzer, the electrolysis load of the electrolyzer, and the green electricity input power of the electrolysis hydrogen production system. The curtailment rate constraints are constructed based on the curtailment power of the electrolyzer and the green electricity input power of the electrolysis hydrogen production system.

[0007] Obtain the parameter values ​​of the first parameter and the second parameter respectively;

[0008] Based on the parameter values ​​of the first parameter and the second parameter, the scheduling model is solved to determine the operating parameters of each electrolyzer in the electrolysis hydrogen production system. The operating parameters include the electrolysis load and the number of start-ups and shutdowns of each electrolyzer at each time point within a target time period, where the target time period is the operating time of the electrolysis hydrogen production system.

[0009] The operation of each electrolyzer in the electrolytic hydrogen production system is scheduled according to its operating parameters.

[0010] Optionally, the first parameter includes the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of each electrolyzer, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system.

[0011] Alternatively, the first parameter may include the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of various types of electrolyzers in the electrolysis hydrogen production system, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system.

[0012] The second parameter includes the target downtime penalty consumption and the target ramp-up consumption. The target downtime penalty consumption is the sum of the downtime penalty consumption of all electrolyzers in the electrolytic hydrogen production system, and the target ramp-up consumption is the sum of the ramp-up consumption of all electrolyzers in the electrolytic hydrogen production system.

[0013] Optionally, the objective function is:

[0014] minF=C cost -C in

[0015]

[0016] C cost =C elec +C α +C σ

[0017]

[0018] Wherein, minF represents the minimum efficiency index of the electrolytic hydrogen production system, and C in e represents the total hydrogen production of the electrolysis hydrogen production system. 1,n (t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, k1 represents the unit energy consumption of electro-to-hydrogen conversion in the first type of electrolyzer, N represents the number of the first type of electrolyzer, and e 2,m (t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, k2 represents the unit energy consumption of electro-to-hydrogen conversion in the second type of electrolyzer, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen production system at time t, k s Let Y represent the unit energy consumption for electro-hydrogen conversion of the s-th type of electrolyzer, and let c represent the number of the s-th type of electrolyzer. h2 (t) represents the unit price of hydrogen at time t, C cost Indicates the power consumption, Celec C represents the power consumption of the electrolytic hydrogen production system. σ C is the shutdown penalty cost for the target. α E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, where E(t) is the target ramp-up consumption.

[0019] Optionally, the power balance constraint includes:

[0020]

[0021] Where E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, e 1,n (t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, N represents the number of the first type of electrolyzers, and e 2,m (t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen electrolysis system at time t, where Y represents the number of the s-th type of electrolyzer, f e (t) represents the wasted power of the electrolytic hydrogen production system at time t.

[0022] Optionally, the curtailment rate constraint includes:

[0023]

[0024] Where β represents the power curtailment rate of the electrolytic hydrogen production system, E(t) represents the green electricity input power of the input electrolytic hydrogen production system at time t, and f e (t) represents the wasted power of the electrolytic hydrogen production system at time t;

[0025] The abandoned electricity rate does not exceed the first threshold.

[0026] Optionally, the type of electrolytic cell includes an alkaline electrolytic cell and a PEM electrolytic cell, wherein the load adjustment range of the alkaline electrolytic cell is 50%-100% of the rated electrolytic power of the alkaline electrolytic cell, and the load adjustment range of the PEM electrolytic cell is 50%-110% of the rated electrolytic power of the PEM electrolytic cell.

[0027] Optionally, the cumulative downtime penalty cost of the electrolytic cell includes:

[0028]

[0029] Among them, C σ The target shutdown penalty cost, σ 1,n(t) represents the start-up and shutdown consumption of the nth type of electrolytic cell at time t, σ 2,m (t) represents the start-up and shutdown consumption of the m-th second type of electrolytic cell at time t, σ s,y Let N represent the number of first-type electrolytic cells, M represent the number of second-type electrolytic cells, and Y represent the number of s-th type electrolytic cells at time t.

[0030] The start-up and shutdown costs of the y-th type of electrolytic cell include:

[0031] σ s,y (t)=x s (t)·σ s

[0032]

[0033] Where, x s (t) represents the number of times the s-th type of electrolytic cell is started and stopped at time t, σ s Let C be the start-up and shutdown penalty parameter for the s-th type of electrolytic cell at time t. s For the investment cost of electrolytic hydrogen production using the s-th type of electrolyzer, N s is the preset number of cold starts for the s-th type of electrolytic cell.

[0034] Optionally, the ramp-up cost of the y-th type of electrolytic cell includes:

[0035]

[0036] E≥|e x (t)-e x (t-1)|

[0037] Among them, C α For the target hill climb consumption, e x (t) represents the electrolytic power of electrolytic cell x at time t, τ represents the ramp-up penalty coefficient of a single electrolytic cell, E represents the power adjustment capability of the electrolytic cell itself from time t-1 to time t, N represents the number of the first type of electrolytic cells, M represents the number of the second type of electrolytic cells, and Y represents the number of the s-th type of electrolytic cells.

[0038] Secondly, embodiments of this application also provide an operation scheduling device for an electrolytic hydrogen production system, the device comprising:

[0039] A construction module is used to construct a scheduling model. The scheduling model includes an objective function and constraints aimed at maximizing the revenue obtained from the operation of the electrolysis hydrogen production system. The constraints include power balance constraints and curtailment rate constraints of the electrolysis hydrogen production system. The objective function is constructed based on a first parameter, a second parameter, the green electricity input power of the electrolysis hydrogen production system, the hydrogen sales price per unit, and the electrolysis duration of the electrolysis hydrogen production system. The first parameter is a parameter related to the electrolyzer of the electrolysis hydrogen production system, and the second parameter is a parameter related to the penalty consumption in the electrolysis hydrogen production system. The power balance constraints are constructed based on the curtailment power of the electrolyzer, the electrolysis load of the electrolyzer, and the green electricity input power of the electrolysis hydrogen production system. The curtailment rate constraints are constructed based on the curtailment power of the electrolyzer and the green electricity input power of the electrolysis hydrogen production system.

[0040] The acquisition module is used to acquire the parameter value of the first parameter and the parameter value of the second parameter, respectively.

[0041] The calculation module is used to solve the scheduling model based on the parameter values ​​of the first parameter and the second parameter to determine the operating parameters of each electrolyzer in the electrolysis hydrogen production system; the operating parameters include the electrolysis load and the number of start-ups and shutdowns of the electrolyzer at each time point within a target time period, and the target time period is the operating time period of the electrolysis hydrogen production system;

[0042] The operation module is used to schedule the operation of each electrolyzer in the electrolysis hydrogen production system according to the operating parameters of each electrolyzer.

[0043] Thirdly, embodiments of this application also provide an electronic device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the above-described electrolytic hydrogen production system operation scheduling method.

[0044] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the above-described electrolytic hydrogen production system operation scheduling method.

[0045] The electrolysis hydrogen production system operation scheduling method of this application embodiment includes constructing a scheduling model. The scheduling model includes an objective function and constraints aimed at maximizing the obtainable revenue value of the electrolysis hydrogen production system operation. The constraints include power balance constraints and curtailment rate constraints of the electrolysis hydrogen production system. The objective function is constructed based on a first parameter, a second parameter, the green electricity input power of the electrolysis hydrogen production system, the hydrogen sales price per unit, and the electrolysis time of the electrolysis hydrogen production system. The first parameter is a parameter related to the electrolyzer of the electrolysis hydrogen production system, and the second parameter is a parameter related to penalty consumption in the electrolysis hydrogen production system. The power balance constraints are based on the curtailment power of the electrolyzer and the curtailment rate of the electrolyzer. The electrolysis load and the green electricity input power of the electrolysis hydrogen production system are constructed, and the curtailment rate constraint is constructed based on the curtailment power of the electrolyzer and the green electricity input power of the electrolysis hydrogen production system. The parameter values ​​of the first parameter and the second parameter are obtained respectively. Based on the parameter values ​​of the first parameter and the second parameter, the scheduling model is solved to determine the operating parameters of each electrolyzer in the electrolysis hydrogen production system. The operating parameters include the electrolysis load and the number of start-ups and shutdowns of each electrolyzer at each time point within a target time period, where the target time period is the operating time of the electrolysis hydrogen production system. The operation of each electrolyzer is scheduled according to its operating parameters. This method constructs an operation scheduling model for the electrolysis hydrogen production system, including an objective function and constraints aimed at maximizing the benefits obtained from the operation of the system. It determines the operating parameters of each electrolyzer in the system and schedules the operation of each electrolyzer based on these parameters. Compared to situations where operating parameters are not rationally scheduled, this method avoids frequent start-ups and shutdowns and unreasonable load operations, improves the compatibility between the electrolysis system and new energy sources, fully couples the electrolysis hydrogen production system with new energy sources, and enhances the utilization rate of new energy sources. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a flowchart of the operation scheduling method for the electrolysis hydrogen production system provided in the embodiments of this application;

[0048] Figure 2 This is a structural diagram of the electrolysis hydrogen production system operation scheduling device provided in the embodiments of this application;

[0049] Figure 3This is a structural diagram of the electronic device provided in the embodiments of this application. Detailed Implementation

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] This application provides a method for scheduling the operation of an electrolytic hydrogen production system. See also... Figure 1 , Figure 1 This is a flowchart of the operation scheduling method for the electrolysis hydrogen production system provided in the embodiments of this application, such as... Figure 1 As shown, it includes the following steps:

[0052] Step 101: Construct a scheduling model. The scheduling model includes an objective function and constraints aimed at maximizing the revenue obtained from the operation of the electrolysis hydrogen production system. The constraints include the power balance constraint and the curtailment rate constraint of the electrolysis hydrogen production system. The objective function is constructed based on a first parameter, a second parameter, the green electricity input power of the electrolysis hydrogen production system, the hydrogen sales price per unit, and the electrolysis duration of the electrolysis hydrogen production system. The first parameter is a parameter related to the electrolyzer of the electrolysis hydrogen production system, and the second parameter is a parameter related to the penalty consumption in the electrolysis hydrogen production system. The power balance constraint is constructed based on the curtailment power of the electrolyzer, the electrolysis load of the electrolyzer, and the green electricity input power of the electrolysis hydrogen production system. The curtailment rate constraint is constructed based on the curtailment power of the electrolyzer and the green electricity input power of the electrolysis hydrogen production system.

[0053] In this step, to better adapt the hydrogen electrolysis system to the volatility of new energy sources, an objective function is constructed to maximize the obtainable revenue of the hydrogen electrolysis system. This objective function is based on a first parameter, a second parameter, the green electricity input power of the hydrogen electrolysis system, the hydrogen sales price, and the electrolysis duration. The aforementioned green electricity refers to electricity produced with zero or near-zero carbon dioxide emissions. Compared to electricity produced by other methods (such as thermal power generation), green electricity has a lower environmental impact. Its main sources are solar, wind, biomass, and geothermal energy. The green electricity input power of the hydrogen electrolysis system is the electrical input power of the system, which can fluctuate throughout the system's operation. That is, the green electricity input power value of the hydrogen electrolysis system can continuously change during its operation (it may take different values ​​at different times). The embodiments of this application do not specifically limit how the green electricity input power value of the hydrogen electrolysis system should change. The first parameter is a parameter related to the electrolyzer of the electrolytic hydrogen production system, and the second parameter is a parameter related to the penalty consumption of the electrolytic hydrogen production system. For example, the first parameter may be the electrolysis load of each electrolyzer of the electrolytic hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of each electrolyzer, the power consumption of the electrolytic hydrogen production system, and the number of electrolyzers in the electrolytic hydrogen production system, etc. The second parameter may be the target shutdown penalty consumption, the target ramp-up consumption, etc.

[0054] To ensure power input and output matching in the hydrogen electrolysis system, a power balance constraint is constructed. This constraint is based on the abandoned power of the electrolyzer, the electrolysis load of the electrolyzer, and the green electricity input power of the hydrogen electrolysis system. Abandoned power means that the electricity invested in the system is not fully utilized, increasing system operating costs. To improve the utilization rate of renewable energy, a power abandonment rate constraint is constructed, based on the abandoned power of the electrolyzer and the green electricity input power of the hydrogen electrolysis system.

[0055] Step 102: Obtain the parameter value of the first parameter and the parameter value of the second parameter respectively;

[0056] In this step, the actual values ​​of the first parameter and the second parameter are obtained. For example, the obtained first parameter value could be the data value fluctuating between 200kW and 500kW during the entire period from the start to the stop of the electrolytic hydrogen production system, with electricity consumption possibly being 2500 kWh; for the obtained second parameter value, the target shutdown penalty consumption could be 50,000 yuan, and the target ramp-up consumption could be 5,000 yuan.

[0057] Step 103: Solve the scheduling model based on the parameter values ​​of the first parameter and the second parameter to determine the operating parameters of each electrolyzer in the electrolysis hydrogen production system; the operating parameters include the electrolysis load and start-stop count of each electrolyzer at each time point within the target time period, where the target time period is the operating time of the electrolysis hydrogen production system;

[0058] In this step, using the obtained parameter values ​​of the first and second parameters, and with the objective of maximizing the obtainable revenue of the electrolytic hydrogen production system while satisfying constraints, the scheduling model is solved to obtain the operating parameters of each electrolyzer in the electrolytic hydrogen production system. The aforementioned target time period is a specific time range, specifically referring to the entire period from the start-up to the shutdown of the electrolytic hydrogen production system. At each specific moment within the target time period, since the system's operating state changes over time, the electrolytic load and start-stop count of the electrolyzers at each time point within the target time period refer to the electrolytic load and start-stop count of the electrolyzers at different time points throughout the entire period from the start-up to the shutdown of the electrolytic hydrogen production system. The start-stop count refers to the number of times the electrolyzers are started and stopped within the target time period.

[0059] The above-mentioned scheduling model can be solved through simulation of hydrogen electrolysis, and the operating parameters of each electrolyzer in the hydrogen electrolysis system can be the optimal results obtained in the simulation.

[0060] Step 104: Schedule the operation of each electrolyzer in the electrolysis hydrogen production system according to the operating parameters of each electrolyzer.

[0061] In this step, after determining the operating parameters of each electrolyzer, the electrolytic hydrogen production system is scheduled according to these parameters. In some optional embodiments, electrolyzers with different parameters can be grouped together, and then each group of electrolyzers can be switched on and off and its power adjusted based on the obtained operating parameters.

[0062] In the electrolysis hydrogen production system operation scheduling method of this application embodiment, an electrolysis hydrogen production system operation scheduling model is constructed, which includes an objective function and constraints that aim to maximize the profit value that can be obtained from the operation of the electrolysis hydrogen production system. The operating parameters of each electrolyzer in the electrolysis hydrogen production system are determined, and the operation of each electrolyzer is scheduled according to the operating parameters of each electrolyzer. Compared with the case where the operating parameters of the electrolyzer are not reasonably scheduled, frequent start-up and shutdown of the electrolyzer and unreasonable load operation can be avoided, the matching between the electrolysis system and the new energy can be improved, the electrolysis hydrogen production system and the new energy can be fully coupled, and the utilization rate of the new energy can be improved.

[0063] Optionally, the first parameter includes the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of each electrolyzer, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system.

[0064] Alternatively, the first parameter may include the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of various types of electrolyzers in the electrolysis hydrogen production system, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system.

[0065] The second parameter includes the target downtime penalty consumption and the target ramp-up consumption. The target downtime penalty consumption is the sum of the downtime penalty consumption of all electrolyzers in the electrolytic hydrogen production system, and the target ramp-up consumption is the sum of the ramp-up consumption of all electrolyzers in the electrolytic hydrogen production system.

[0066] In the electrolytic hydrogen production system operation scheduling method of this application embodiment, the first parameter may include the electrolysis load of each electrolyzer in the electrolytic hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion for each type of electrolyzer or each electrolyzer in the electrolytic hydrogen production system, the power consumption of the electrolytic hydrogen production system, and the number of electrolyzers in the electrolytic hydrogen production system. Different types of electrolyzers (such as alkaline electrolyzers and proton exchange membrane electrolyzers) differ in their internal structure, electrode materials, electrolysis principles, etc., resulting in different unit energy consumptions in the process of converting electrical energy into hydrogen energy. The unit energy consumption of electro-to-hydrogen conversion can more accurately describe the energy conversion efficiency characteristics of each type of electrolyzer, and different types of electrolyzers can be distinguished according to their different unit energy consumption of electro-to-hydrogen conversion.

[0067] The second parameter can include target shutdown penalty consumption and target ramp-up consumption. The target shutdown penalty consumption refers to the sum of shutdown penalty consumption for all electrolyzers in the hydrogen electrolysis system. This target shutdown penalty consumption is a penalty mechanism established to prevent excessively frequent start-ups and shutdowns of a single electrolyzer. When an electrolyzer starts or stops, the corresponding shutdown penalty consumption is calculated based on the number of start-ups and shutdowns and the pre-set shutdown penalty parameters. The target ramp-up consumption refers to the sum of ramp-up consumption for all electrolyzers in the hydrogen electrolysis system. This target ramp-up consumption is a penalty mechanism established for the power adjustment behavior of the electrolyzers. When the power of an electrolyzer changes (whether it increases or decreases, collectively referred to as ramp-up), the corresponding ramp-up consumption is calculated based on the amount of power change and the pre-set ramp-up penalty coefficient.

[0068] In this implementation, the first parameter includes the electrolysis load of the electrolyzer, which reflects the working intensity of each electrolyzer and its impact on hydrogen production and the power demand of the electrolyzer, thus optimizing power allocation and improving the utilization rate of new energy sources; the unit energy consumption of electro-to-hydrogen conversion determines the efficiency of electricity-to-hydrogen conversion, affecting both cost and efficiency, and including it in the first parameter can encourage the selection of low-energy-consumption modes to improve conversion efficiency; system power consumption is a major cost and is related to multiple factors, and including it in the first parameter can guide reasonable control of power costs; the number of electrolyzers determines the scale of hydrogen production and power demand. The second parameter includes the target shutdown penalty consumption constraining start-up and shutdown behavior, which can reduce frequent start-up and shutdown, extend lifespan, reduce costs, and improve stability; and the target ramp-up consumption constraining power adjustment behavior, which can reduce frequent adjustments, reduce losses, improve efficiency and lifespan, and optimize cost performance. When constructing the objective function, the first parameter is selected from the electrolysis load of the electrolyzer, the unit energy consumption of electro-to-hydrogen conversion, the system power consumption, and the number of electrolyzers, while the second parameter is selected from the target shutdown penalty consumption and the target ramp-up consumption. This allows for optimization of the system from different aspects while constraining the start-up and shutdown behavior of the electrolyzers and the power adjustment behavior, both of which can improve the performance of the electrolytic hydrogen production system.

[0069] Optionally, the objective function is:

[0070] minF=C cost -C in

[0071]

[0072] C cost =C elec +C α +C σ

[0073]

[0074] Wherein, minF represents the minimum efficiency index of the electrolytic hydrogen production system, and C in e represents the total hydrogen production of the electrolysis hydrogen production system. 1,n (t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, k1 represents the unit energy consumption of electro-to-hydrogen conversion in the first type of electrolyzer, N represents the number of the first type of electrolyzer, and e 2,m (t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, k2 represents the unit energy consumption of electro-to-hydrogen conversion in the second type of electrolyzer, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen production system at time t, k s Let Y represent the unit energy consumption for electro-hydrogen conversion of the s-th type of electrolyzer, and let c represent the number of the s-th type of electrolyzer. h2(t) represents the unit price of hydrogen at time t, C cost Indicates the power consumption, C elec C represents the power consumption of the electrolytic hydrogen production system. σ C is the shutdown penalty cost for the target. α E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, where E(t) is the target ramp-up consumption.

[0075] In the electrolysis hydrogen production system operation scheduling method of this application embodiment, the objective function aims to maximize the obtainable benefit value of the electrolysis hydrogen production system, that is, to maximize the benefit. minF represents the minimum benefit index of the electrolysis hydrogen production system, and the goal is to minimize it (to maximize the obtainable benefit value of the system operation in the process of finding the minimum value); C in The revenue generated from the total hydrogen production of the system is obtained by integrating the electrolysis load of different types of electrolyzers at various times, dividing by the corresponding unit energy consumption for electro-to-hydrogen conversion, and then multiplying by the unit price of hydrogen. This reflects the relationship between hydrogen production and revenue; that is, the more hydrogen produced, the higher the revenue. cost This indicates the electricity consumption, which is also the operating cost of the electrolysis hydrogen production system, including electricity costs (consumption) C. elec C. Ramp-up cost (consumption) α And downtime penalty cost (consumption) C σ The above-mentioned electricity cost (consumption) C elec It is obtained by integrating the green electricity input power of the input electrolysis hydrogen production system at a given time and multiplying it by the electricity price curve, reflecting the system's electricity expenditure; ramp-up cost and shutdown penalty cost respectively constrain the power regulation and start-up / shutdown behavior of the electrolyzer, avoiding excessively frequent operations that increase costs.

[0076] By obtaining the known number of different types of electrolyzers, the electrolysis load of different types of electrolyzers at various times, the unit energy consumption of electricity-to-hydrogen conversion of different types of electrolyzers, the total operating time of the system, the unit price of hydrogen, the green electricity input power of the input electrolysis hydrogen production system at various times, the electricity price curve, the target ramp-up consumption, and the target start-up and shutdown penalty consumption, it is beneficial to more accurately and quickly determine the electrolysis load and start-up and shutdown frequency of each electrolyzer in the target time period under the condition of maximizing the operating benefits of the electrolysis hydrogen production system under the input of new energy electricity.

[0077] Optionally, the power balance constraint includes:

[0078]

[0079] Where E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, e 1,n(t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, N represents the number of the first type of electrolyzers, and e 2,m (t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen electrolysis system at time t, where Y represents the number of the s-th type of electrolyzer, f e (t) represents the wasted power of the electrolytic hydrogen production system at time t.

[0080] In the electrolytic hydrogen production system operation scheduling method of this application embodiment, the above formula indicates that at any given time, the green electricity input power into the electrolytic hydrogen production system is equal to the sum of the electrolytic loads of all types of electrolyzers (including first-type electrolyzers, second-type electrolyzers, and other types of electrolyzers) plus the power wasted at that time. This constraint ensures the power balance of the system during operation. It reduces the occurrence of unreasonable power distribution, such as some electrolyzers having excessively high or low power, which would affect hydrogen production efficiency and the service life of the electrolyzers. In addition, the power balance constraint can help the system reasonably adjust the electrolytic load and power wasted of each electrolyzer according to the fluctuation of new energy sources. For example, when the input power of new energy sources suddenly increases, the system can ensure the overall power balance of the system by increasing the electrolytic load of the electrolyzers or allowing a certain amount of power wasted, thereby reducing the occurrence of overload (i.e., the electrolytic load exceeds its maximum withstand power) or underload (i.e., the electrolytic load is far below its optimal operating power).

[0081] Optionally, the curtailment rate constraint includes:

[0082]

[0083] Where β represents the power curtailment rate of the electrolytic hydrogen production system, E(t) represents the green electricity input power of the input electrolytic hydrogen production system at time t, and f e (t) represents the wasted power of the electrolytic hydrogen production system at time t;

[0084] The abandoned electricity rate does not exceed the first threshold.

[0085] In the electrolytic hydrogen production system operation scheduling method of this application embodiment, the above formula is used to calculate the power wastage rate of the electrolytic hydrogen production system during the entire operation period. The integral of the power wasted over the entire operating period, with the denominator being... This represents the integral of the total power input to the electrolysis hydrogen production system over the entire operating period. The power curtailment rate is obtained by comparing the two values.

[0086] The aforementioned curtailment rate does not exceed a first threshold, which can be any value set by the user. For example, setting the first threshold to 0.05 means the curtailment rate of the electrolysis hydrogen production system will not exceed 0.05 throughout the entire operating period. In renewable energy hydrogen production scenarios, curtailment means that the electricity invested in the system is not fully utilized, increasing system operating costs. If the curtailment rate is too high, a large amount of renewable energy will not be utilized to convert into hydrogen energy, leading to energy waste. By setting a curtailment rate constraint, the system can be prompted to minimize curtailment during operation, which is beneficial to improving the utilization rate of renewable energy.

[0087] Optionally, the type of electrolyzer includes an alkaline electrolyzer and a proton exchange membrane electrolyzer. The load adjustment range of the alkaline electrolyzer is 50%-100% of the rated electrolysis power of the alkaline electrolyzer, and the load adjustment range of the proton exchange membrane electrolyzer is 50%-110% of the rated electrolysis power of the proton exchange membrane electrolyzer.

[0088] In the operation scheduling method of the electrolytic hydrogen production system in this application embodiment, the theoretical load adjustment range of the alkaline electrolyzer is 30%-100% of the rated power, and the theoretical load adjustment range of the proton exchange membrane electrolyzer is 10%-150% of the rated power. However, when the electrolyzer operates at low power, the unit comprehensive energy consumption will increase accordingly, placing it in an uneconomical operating range. Furthermore, when the electrolyzer power approaches the lower limit, the safety risk increases accordingly. Therefore, the adjustment range of the electrolyzer is carefully selected, setting the electrolysis system to operate within a relatively mild, stable, and economical power range. The alkaline electrolysis system is selected at 50%-100%, and the proton exchange membrane electrolysis system at 50%-110%. The equations are as follows:

[0089]

[0090] in, and These are the rated electrolysis power for a single alkaline electrolysis unit and a proton exchange membrane electrolysis unit, respectively.

[0091] By limiting the operation of the electrolyzer within a reasonable load regulation range, it is possible to avoid operating the electrolyzer at excessively low power, thereby reducing equipment instability caused by low power operation and ensuring stable system operation. Furthermore, setting a reasonable regulation range ensures that the electrolyzer operates within a safe power range, reducing the risk of equipment failure due to overload or underload, extending equipment lifespan, and consequently reducing equipment maintenance and replacement costs.

[0092] Optionally, the cumulative downtime penalty cost of the electrolytic cell includes:

[0093]

[0094] Among them, C σThe target shutdown penalty cost, σ 1,n (t) represents the start-up and shutdown consumption of the nth type of electrolytic cell at time t, σ 2,m (t) represents the start-up and shutdown consumption of the m-th second type of electrolytic cell at time t, σ s,y Let N represent the number of first-type electrolytic cells, M represent the number of second-type electrolytic cells, and Y represent the number of s-th type electrolytic cells at time t.

[0095] The start-up and shutdown costs of the y-th type of electrolytic cell include:

[0096] σ s,y (t)=x s (t)·σ s

[0097]

[0098] Where, x s (t) represents the number of times the s-th type of electrolytic cell is started and stopped at time t, σ s Let C be the start-up and shutdown penalty parameter for the s-th type of electrolytic cell at time t. s For the investment cost of electrolytic hydrogen production using the s-th type of electrolyzer, N s is the preset number of cold starts for the s-th type of electrolytic cell.

[0099] In the electrolytic hydrogen production system operation scheduling method of this application embodiment, in order to fully reflect the impact of electrolyzer start-up and shutdown on the system, avoid repeated start-up and shutdown of a single electrolyzer, comprehensively balance the optimal efficiency of each electrolyzer, and simultaneously meet the complex and diverse large-scale wind-solar-hydrogen coupling scenarios, a cumulative start-up and shutdown penalty mechanism for a single electrolyzer is established as shown in the above equation. The target shutdown penalty consumption is obtained by accumulating the start-up and shutdown consumption of all types of electrolyzers (Type I electrolyzers, Type II electrolyzers, etc. up to Type S electrolyzers) at each time point.

[0100] To avoid repeated start-ups and shutdowns of individual electrolytic cells and to ensure a relatively stable overall operating environment, a cumulative start-up and shutdown penalty mechanism for individual electrolytic cells is established. This mechanism increases the penalty cost σ per start-up and shutdown of a single electrolytic cell as the number of start-ups and shutdowns increases. 1,n (t), σ 2,m (t), σ s,y The higher (t) is, the higher the penalty cost of the electrolysis system, which is also the target penalty consumption C. σ The higher.

[0101] A linear cumulative approach is adopted, that is, the number of start-ups and shutdowns of the electrolyzers is accumulated. The cost of the x1th start-up and shutdown of the first type of electrolyzer is x1·σ1, and the cost of the x2th start-up and shutdown of the second type of electrolyzer is x2·σ2. The penalty parameter is initially considered to be the hydrogen production investment cost C. 1 C 2It is described by the quotient of the number of cold starts N1 and N2 designed. The specific equation is as follows;

[0102] σ 1,n (t)=x1(t)·σ1

[0103] σ 2,m (t)=x2(t)·σ2

[0104]

[0105] σ 1,n (0)=0

[0106] σ 2,m (0)=0

[0107] The above C 1 C 2 , is an economic cost value representing the total capital invested in constructing and configuring the first type of electrolyzer for hydrogen production. This may include statistics and summaries of data such as equipment supplier quotations, installation project budgets and final accounts, and detailed cost breakdowns for supporting facilities. N1 and N2 above represent the pre-set number of cold starts allowed within the normal service life of each type of electrolyzer, based on its design specifications and technical parameters. For example, after extensive experimentation and testing, the manufacturer has determined that the first type of electrolyzer can withstand 10 cold starts under normal operating conditions; then N... 1 =10.

[0108] By setting a cumulative downtime penalty cost, the start-up and shutdown behavior of the electrolyzers is constrained. If the electrolyzers start and stop frequently, the number of start-up and shutdown times will increase, leading to increased start-up and shutdown costs, and consequently, an increase in the system's target downtime penalty cost. This cost-increasing mechanism will incentivize the system to avoid excessively frequent start-up and shutdown of the electrolyzers during scheduling, thereby reducing costs and improving the overall economic efficiency of the hydrogen production system.

[0109] Optionally, the ramp-up cost of the y-th type of electrolytic cell includes:

[0110]

[0111] E≥|e x (t)-e x (t-1)|

[0112] Among them, C α For the target hill climb consumption, e x(t) represents the electrolytic power of electrolytic cell x at time t, τ represents the ramp-up penalty coefficient of a single electrolytic cell, E represents the power adjustment capability of the electrolytic cell itself from time t-1 to time t, N represents the number of the first type of electrolytic cells, M represents the number of the second type of electrolytic cells, and Y represents the number of the s-th type of electrolytic cells.

[0113] In the electrolysis hydrogen production system operation scheduling method of this application embodiment,

[0114]

[0115] The system's ramp-up cost C is represented by... α This is measured by the change in electrolytic power |e| of all electrolytic cells (from cell 1 to cell N+M+Y, covering all types of electrolytic cells) over the entire operating time period T. x (t)-e x The formula is obtained by multiplying (t-1)| by the ramp penalty coefficient τ and then integrating. This formula reflects the relationship between the system's ramp consumption, the change in electrolyzer power, and the ramp penalty coefficient.

[0116] E≥|e x (t)-e x (t-1)|

[0117] This means that the power variation of a single electrolytic cell at any given time cannot exceed the equipment's own adjustment capacity. For example, if the equipment's hourly adjustment capacity is E = 1 megawatt / hour, then the actual power variation cannot exceed 1 megawatt / hour. This is a constraint on the electrolytic cell's power adjustment to ensure that the electrolytic cell operates within a safe power adjustment range and avoids damage to the equipment due to excessive power fluctuations. Frequent power adjustments can damage the electrolytic cell equipment and affect its service life. By constraining the electrolytic cell's power adjustment behavior, wear and damage to the equipment can be reduced, its service life extended, and its reliability and stability improved, thereby reducing equipment maintenance and replacement costs. Furthermore, since ramp-up costs are part of the system cost, by rationally controlling the electrolytic cell's power adjustment behavior and reducing ramp-up costs, system operating costs can be optimized, improving the system's economic efficiency.

[0118] See Figure 2 , Figure 2 This application provides another embodiment of an electrolytic hydrogen production system operation scheduling device 200, which includes:

[0119] Module 201 is used to construct a scheduling model. The scheduling model includes an objective function and constraints aimed at maximizing the revenue obtained from the operation of the electrolysis hydrogen production system. The constraints include power balance constraints and curtailment rate constraints of the electrolysis hydrogen production system. The objective function is constructed based on a first parameter, a second parameter, the green electricity input power of the electrolysis hydrogen production system, the hydrogen sales price per unit, and the electrolysis duration of the electrolysis hydrogen production system. The first parameter is a parameter related to the electrolyzer of the electrolysis hydrogen production system, and the second parameter is a parameter related to the penalty consumption in the electrolysis hydrogen production system. The power balance constraints are constructed based on the curtailment power of the electrolyzer, the electrolysis load of the electrolyzer, and the green electricity input power of the electrolysis hydrogen production system. The curtailment rate constraints are constructed based on the curtailment power of the electrolyzer and the green electricity input power of the electrolysis hydrogen production system.

[0120] The acquisition module 202 is used to acquire the parameter value of the first parameter and the parameter value of the second parameter respectively;

[0121] The calculation module 203 is used to solve the scheduling model based on the parameter values ​​of the first parameter and the second parameter to determine the operating parameters of each electrolyzer in the electrolysis hydrogen production system; the operating parameters include the electrolysis load and start-stop count of each electrolyzer at each time point within a target time period, and the target time period is the operating time period of the electrolysis hydrogen production system;

[0122] The operation module 204 is used to schedule the operation of each electrolyzer in the electrolysis hydrogen production system according to the operating parameters of each electrolyzer.

[0123] Optionally, the first parameter includes the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of each electrolyzer, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system; or, the first parameter includes the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of various types of electrolyzers in the electrolysis hydrogen production system, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system; the second parameter includes a target downtime penalty consumption and a target ramp-up consumption, wherein the target downtime penalty consumption is the sum of the downtime penalty consumption of all electrolyzers in the electrolysis hydrogen production system, and the target ramp-up consumption is the sum of the ramp-up consumption of all electrolyzers in the electrolysis hydrogen production system.

[0124] Optionally, the objective function is:

[0125] minF=C cost -C in

[0126]

[0127] C cost =C elec +C α +C σ

[0128]

[0129] Among them, C in e represents the total hydrogen production of the electrolysis hydrogen production system. 1,n (t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, k1 represents the unit energy consumption of electro-to-hydrogen conversion in the first type of electrolyzer, N represents the number of the first type of electrolyzer, and e 2,m (t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, k2 represents the unit energy consumption of electro-to-hydrogen conversion in the second type of electrolyzer, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen production system at time t, k s Let Y represent the unit energy consumption for electro-hydrogen conversion of the s-th type of electrolyzer, and let c represent the number of the s-th type of electrolyzer. h2 (t) represents the unit price of hydrogen at time t, C cost Indicates the power consumption, C elec C represents the power consumption of the electrolytic hydrogen production system. σ C is the shutdown penalty cost for the target. α E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, where E(t) is the target ramp-up consumption.

[0130] Optionally, the first parameter includes the installed capacity of new energy, the predicted annual theoretical output of new energy, and the annualized unit investment cost of new energy; the second parameter includes the annualized unit power investment cost of energy storage, the annualized unit capacity investment cost of energy storage, the energy storage charging efficiency, and the energy storage discharging efficiency; and the fourth parameter includes the predicted annual load.

[0131] Optionally, the power balance constraint includes:

[0132]

[0133] Where E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, e 1,n (t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, N represents the number of the first type of electrolyzers, and e 2,m(t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen electrolysis system at time t, where Y represents the number of the s-th type of electrolyzer, f e (t) represents the wasted power of the electrolytic hydrogen production system at time t.

[0134] Optionally, the curtailment rate constraint includes:

[0135]

[0136] Where β represents the power curtailment rate of the electrolytic hydrogen production system, E(t) represents the green electricity input power of the input electrolytic hydrogen production system at time t, and f e (t) represents the power wasted by the electrolytic hydrogen production system at time t; the power wasted rate does not exceed the first threshold.

[0137] Optionally, the type of electrolyzer includes an alkaline electrolyzer and a proton exchange membrane electrolyzer. The load adjustment range of the alkaline electrolyzer is 50%-100% of the rated electrolysis power of the alkaline electrolyzer, and the load adjustment range of the proton exchange membrane electrolyzer is 50%-110% of the rated electrolysis power of the proton exchange membrane electrolyzer.

[0138] Optionally, the cumulative downtime penalty cost of the electrolytic cell includes:

[0139]

[0140] Among them, C σ The target shutdown penalty cost, σ 1,n (t) represents the start-up and shutdown consumption of the nth type of electrolytic cell at time t, σ 2,m (t) represents the start-up and shutdown consumption of the m-th second type of electrolytic cell at time t, σ s,y Let N represent the number of first-type electrolytic cells, M represent the number of second-type electrolytic cells, and Y represent the number of s-th type electrolytic cells at time t; the start-up and shutdown cost of the y-th type s-th electrolytic cell includes:

[0141] σ s,y (t)=x s (t)·σ s

[0142]

[0143] Where, x s (t) represents the number of times the s-th type of electrolytic cell is started and stopped at time t, σ sLet C be the start-up and shutdown penalty parameter for the s-th type of electrolytic cell at time t. s For the investment cost of electrolytic hydrogen production using the s-th type of electrolyzer, N s is the preset number of cold starts for the s-th type of electrolytic cell.

[0144] Optionally, the ramp-up cost of the y-th type of electrolytic cell includes:

[0145]

[0146] E≥|e x (t)-e x (t-1)|

[0147] Among them, C α For the target hill climb consumption, e x (t) represents the electrolytic power of electrolytic cell x at time t, τ represents the ramp-up penalty coefficient of a single electrolytic cell, E represents the power adjustment capability of the electrolytic cell itself from time t-1 to time t, N represents the number of the first type of electrolytic cells, M represents the number of the second type of electrolytic cells, and Y represents the number of the s-th type of electrolytic cells.

[0148] See Figure 3 , Figure 3 This is a structural diagram of an electronic device provided in another embodiment of this application, such as... Figure 3 As shown, the electronic device includes: a processor 301, a communication interface 302, a communication bus 304, and a memory 303, wherein the processor 301, the communication interface 302, and the memory 303 interact with each other through the communication bus 304.

[0149] The memory 303 stores computer programs; the processor 301 constructs a scheduling model, which includes an objective function and constraints aimed at maximizing the revenue obtained from the operation of the electrolysis hydrogen production system. The constraints include power balance constraints and curtailment rate constraints for the electrolysis hydrogen production system. The objective function is constructed based on a first parameter, a second parameter, the green electricity input power of the electrolysis hydrogen production system, the hydrogen sales price, and the electrolysis duration of the electrolysis hydrogen production system. The first parameter is a parameter related to the electrolyzer of the electrolysis hydrogen production system, and the second parameter is a parameter related to penalty consumption in the electrolysis hydrogen production system. The power balance constraints are based on the curtailment power of the electrolyzer, the green electricity input power of the electrolyzer, the green electricity input power of the electrolyzer, the green electricity input power of the electrolysis hydrogen production system, and the green electricity input power of the electrolyzer. The electrolysis load of the electrolyzer and the green electricity input power of the electrolysis hydrogen production system are constructed, and the curtailment rate constraint is constructed based on the curtailment power of the electrolyzer and the green electricity input power of the electrolysis hydrogen production system. The parameter values ​​of the first parameter and the second parameter are obtained respectively. Based on the parameter values ​​of the first parameter and the second parameter, the scheduling model is solved to determine the operating parameters of each electrolyzer in the electrolysis hydrogen production system. The operating parameters include the electrolysis load and the number of start-stop cycles of the electrolyzer at each time point within a target time period, where the target time period is the operating time period of the electrolysis hydrogen production system. The operation of each electrolyzer is scheduled according to the operating parameters of each electrolyzer in the electrolysis hydrogen production system.

[0150] Optionally, the first parameter includes the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of each electrolyzer, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system; or, the first parameter includes the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of various types of electrolyzers in the electrolysis hydrogen production system, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system; the second parameter includes a target downtime penalty consumption and a target ramp-up consumption, wherein the target downtime penalty consumption is the sum of the downtime penalty consumption of all electrolyzers in the electrolysis hydrogen production system, and the target ramp-up consumption is the sum of the ramp-up consumption of all electrolyzers in the electrolysis hydrogen production system.

[0151] Optionally, the objective function is:

[0152] minF=C cost -C in

[0153]

[0154] C cost =C elec +C α +C σ

[0155]

[0156] Among them, C in e represents the total hydrogen production of the electrolysis hydrogen production system. 1,n (t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, k1 represents the unit energy consumption of electro-to-hydrogen conversion in the first type of electrolyzer, N represents the number of the first type of electrolyzer, and e 2,m (t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, k2 represents the unit energy consumption of electro-to-hydrogen conversion in the second type of electrolyzer, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen production system at time t, k s Let Y represent the unit energy consumption for electro-hydrogen conversion of the s-th type of electrolyzer, and let c represent the number of the s-th type of electrolyzer. h2 (t) represents the unit price of hydrogen at time t, C cost Indicates the power consumption, C elec C represents the power consumption of the electrolytic hydrogen production system. σ C is the shutdown penalty cost for the target. α E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, where E(t) is the target ramp-up consumption.

[0157] Optionally, the first parameter includes the installed capacity of new energy, the predicted annual theoretical output of new energy, and the annualized unit investment cost of new energy; the second parameter includes the annualized unit power investment cost of energy storage, the annualized unit capacity investment cost of energy storage, the energy storage charging efficiency, and the energy storage discharging efficiency; and the fourth parameter includes the predicted annual load.

[0158] Optionally, the power balance constraint includes:

[0159]

[0160] Where E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, e 1,n (t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, N represents the number of the first type of electrolyzers, and e 2,m (t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen electrolysis system at time t, where Y represents the number of the s-th type of electrolyzer, f e(t) represents the wasted power of the electrolytic hydrogen production system at time t.

[0161] Optionally, the curtailment rate constraint includes:

[0162]

[0163] Where β represents the power curtailment rate of the electrolytic hydrogen production system, E(t) represents the green electricity input power of the input electrolytic hydrogen production system at time t, and f e (t) represents the power wasted by the electrolytic hydrogen production system at time t; the power wasted rate does not exceed the first threshold.

[0164] Optionally, the type of electrolyzer includes an alkaline electrolyzer and a proton exchange membrane electrolyzer. The load adjustment range of the alkaline electrolyzer is 50%-100% of the rated electrolysis power of the alkaline electrolyzer, and the load adjustment range of the proton exchange membrane electrolyzer is 50%-110% of the rated electrolysis power of the proton exchange membrane electrolyzer.

[0165] Optionally, the cumulative downtime penalty cost of the electrolytic cell includes:

[0166]

[0167] Among them, C σ The target shutdown penalty cost, σ 1,n (t) represents the start-up and shutdown consumption of the nth type of electrolytic cell at time t, σ 2,m (t) represents the start-up and shutdown consumption of the m-th second type of electrolytic cell at time t, σ s,y Let N represent the number of first-type electrolytic cells, M represent the number of second-type electrolytic cells, and Y represent the number of s-th type electrolytic cells at time t; the start-up and shutdown cost of the y-th type s-th electrolytic cell includes:

[0168] σ s,y (t)=x s (t)·σ s

[0169]

[0170] Where, x s (t) represents the number of times the s-th type of electrolytic cell is started and stopped at time t, σ s Let C be the start-up and shutdown penalty parameter for the s-th type of electrolytic cell at time t. s For the investment cost of electrolytic hydrogen production using the s-th type of electrolyzer, N s is the preset number of cold starts for the s-th type of electrolytic cell.

[0171] Optionally, the ramp-up cost of the y-th type of electrolytic cell includes:

[0172]

[0173] E≥|e x (t)-e x (t-1)|

[0174] Among them, C α For the target hill climb consumption, e x (t) represents the electrolytic power of electrolytic cell x at time t, τ represents the ramp-up penalty coefficient of a single electrolytic cell, E represents the power adjustment capability of the electrolytic cell itself from time t-1 to time t, N represents the number of the first type of electrolytic cells, M represents the number of the second type of electrolytic cells, and Y represents the number of the s-th type of electrolytic cells.

[0175] Communication interface 302 is used for communication between the aforementioned terminal and other devices.

[0176] The memory 303 may include random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Optionally, the memory 303 may also be at least one storage device located remotely from the aforementioned processor 301. The aforementioned processor 301 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0177] This application also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the various processes of the above-described embodiment of the electrolytic hydrogen production system operation scheduling method, achieving the same technical effects. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0178] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0179] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0180] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for scheduling the operation of an electrolytic hydrogen production system, characterized in that, include: A scheduling model is constructed, comprising an objective function and constraints aimed at maximizing the revenue obtainable from the operation of the electrolysis hydrogen production system. The constraints include power balance constraints and curtailment rate constraints of the electrolysis hydrogen production system. The objective function is constructed based on a first parameter, a second parameter, the green electricity input power of the electrolysis hydrogen production system, the hydrogen sales price per unit, and the electrolysis duration of the electrolysis hydrogen production system. The first parameter is a parameter related to the electrolyzer of the electrolysis hydrogen production system, and the second parameter is a parameter related to the penalty consumption in the electrolysis hydrogen production system. The power balance constraints are constructed based on the curtailment power of the electrolyzer, the electrolysis load of the electrolyzer, and the green electricity input power of the electrolysis hydrogen production system. The curtailment rate constraints are constructed based on the curtailment power of the electrolyzer and the green electricity input power of the electrolysis hydrogen production system. Obtain the parameter values ​​of the first parameter and the second parameter respectively; Based on the parameter values ​​of the first parameter and the second parameter, the scheduling model is solved to determine the operating parameters of each electrolyzer in the electrolysis hydrogen production system. The operating parameters include the electrolysis load and the number of start-ups and shutdowns of each electrolyzer at each time point within a target time period, where the target time period is the operating time of the electrolysis hydrogen production system. The operation of each electrolyzer in the electrolytic hydrogen production system is scheduled according to its operating parameters.

2. The operation scheduling method for an electrolytic hydrogen production system according to claim 1, characterized in that, The first parameter includes the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of each electrolyzer, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system. Alternatively, the first parameter may include the electrolysis load of each electrolyzer in the electrolysis hydrogen production system, the unit energy consumption of electro-to-hydrogen conversion of various types of electrolyzers in the electrolysis hydrogen production system, the power consumption of the electrolysis hydrogen production system, and the number of electrolyzers in the electrolysis hydrogen production system. The second parameter includes the target downtime penalty consumption and the target ramp-up consumption. The target downtime penalty consumption is the sum of the downtime penalty consumption of all electrolyzers in the electrolytic hydrogen production system, and the target ramp-up consumption is the sum of the ramp-up consumption of all electrolyzers in the electrolytic hydrogen production system.

3. The method for scheduling the operation of an electrolytic hydrogen production system according to claim 2, characterized in that, The objective function is: C cost =C elec +C α +C σ Wherein, minF represents the minimum efficiency index of the electrolytic hydrogen production system, and C in e represents the total hydrogen production of the electrolysis hydrogen production system. 1,n (t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, k1 represents the unit energy consumption of electro-to-hydrogen conversion in the first type of electrolyzer, N represents the number of the first type of electrolyzer, and e 2,m (t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, k2 represents the unit energy consumption of electro-to-hydrogen conversion in the second type of electrolyzer, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen production system at time t, k s Let Y represent the unit energy consumption for electro-hydrogen conversion of the s-th type of electrolyzer, and let c represent the number of the s-th type of electrolyzer. h2 (t) represents the unit price of hydrogen at time t, C cost Indicates the power consumption, C elec C represents the power consumption of the electrolytic hydrogen production system. σ C is the shutdown penalty cost for the target. α E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, where E(t) is the target ramp-up consumption.

4. The operation scheduling method for an electrolytic hydrogen production system according to claim 1, characterized in that, The power balance constraints include: Where E(t) represents the green electricity input power of the input electrolysis hydrogen production system at time t, e 1,n (t) represents the electrolysis load of the nth electrolyzer in the first type of electrolyzer of the hydrogen production system at time t, N represents the number of the first type of electrolyzers, and e 2,m (t) represents the electrolysis load of the m-th electrolyzer in the second type of electrolyzer of the hydrogen production system at time t, M represents the number of the second type of electrolyzer, and e s,y (t) represents the electrolysis load of the y-th electrolyzer in the s-th type of electrolyzer of the hydrogen electrolysis system at time t, where Y represents the number of the s-th type of electrolyzer, f e (t) represents the wasted power of the electrolytic hydrogen production system at time t.

5. The method for scheduling the operation of an electrolytic hydrogen production system according to claim 4, characterized in that, The curtailment rate constraint includes: Where β represents the power curtailment rate of the electrolytic hydrogen production system, E(t) represents the green electricity input power of the input electrolytic hydrogen production system at time t, and f e (t) represents the wasted power of the electrolytic hydrogen production system at time t; The abandoned electricity rate does not exceed the first threshold.

6. The operation scheduling method for an electrolytic hydrogen production system according to claim 1, characterized in that, The cumulative downtime penalty cost of the electrolytic cell includes: Among them, C σ The target shutdown penalty cost, σ 1,n (t) represents the start-up and shutdown consumption of the nth type of electrolytic cell at time t, σ 2,m (t) represents the start-up and shutdown consumption of the m-th second type of electrolytic cell at time t, σ s,y Let N represent the number of first-type electrolytic cells, M represent the number of second-type electrolytic cells, and Y represent the number of s-th type electrolytic cells at time t. The start-up and shutdown costs of the y-th type of electrolytic cell include: s s,y (t)=x s (t)·s s Where, x s (t) represents the number of times the s-th type of electrolytic cell is started and stopped at time t, σ s Let C be the start-up and shutdown penalty parameter for the s-th type of electrolytic cell at time t. s For the investment cost of electrolytic hydrogen production using the s-th type of electrolyzer, N s is the preset number of cold starts for the s-th type of electrolytic cell.

7. The operation scheduling method for an electrolytic hydrogen production system according to claim 1, characterized in that, The ramp-up cost of the y-th type of electrolytic cell includes: E≥|e x (t)-e x (t-1)| Among them, C α For the target hill climb consumption, e x (t) represents the electrolytic power of electrolytic cell x at time t, τ represents the ramp-up penalty coefficient of a single electrolytic cell, E represents the power adjustment capability of the electrolytic cell itself from time t-1 to time t, N represents the number of the first type of electrolytic cells, M represents the number of the second type of electrolytic cells, and Y represents the number of the s-th type of electrolytic cells.

8. A scheduling device for an electrolytic hydrogen production system, characterized in that, include: A construction module is used to construct a scheduling model. The scheduling model includes an objective function and constraints aimed at maximizing the revenue obtained from the operation of the electrolysis hydrogen production system. The constraints include power balance constraints and curtailment rate constraints of the electrolysis hydrogen production system. The objective function is constructed based on a first parameter, a second parameter, the green electricity input power of the electrolysis hydrogen production system, the hydrogen sales price per unit, and the electrolysis duration of the electrolysis hydrogen production system. The first parameter is a parameter related to the electrolyzer of the electrolysis hydrogen production system, and the second parameter is a parameter related to the penalty consumption in the electrolysis hydrogen production system. The power balance constraints are constructed based on the curtailment power of the electrolyzer, the electrolysis load of the electrolyzer, and the green electricity input power of the electrolysis hydrogen production system. The curtailment rate constraints are constructed based on the curtailment power of the electrolyzer and the green electricity input power of the electrolysis hydrogen production system. The acquisition module is used to acquire the parameter value of the first parameter and the parameter value of the second parameter, respectively. The calculation module is used to solve the scheduling model based on the parameter values ​​of the first parameter and the second parameter to determine the operating parameters of each electrolyzer in the electrolysis hydrogen production system; the operating parameters include the electrolysis load and the number of start-ups and shutdowns of the electrolyzer at each time point within a target time period, and the target time period is the operating time period of the electrolysis hydrogen production system; The operation module is used to schedule the operation of each electrolyzer in the electrolysis hydrogen production system according to the operating parameters of each electrolyzer.

9. An electronic device, characterized in that, The system includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the electrolysis hydrogen production system operation scheduling method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the electrolytic hydrogen production system operation scheduling method as described in any one of claims 1 to 7.

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