A method, device and medium for regulating electrolytic lead load to participate in power grid demand response

Abstract

The present invention relates to a method, device and medium for regulating the electrolytic lead load to participate in the power grid demand response, belonging to the technical field of electrolytic lead load regulation. The method includes the following steps: obtaining the operation data of the electrolytic lead load electrolytic cell to determine the equivalent resistance of the electrolytic cell, and constructing an electrical model based on the equivalent resistance and the operation data to output the power of the electrolytic cell. Calculating the power adjustment amount based on the power command value issued by the power grid and the power of the electrolytic cell. Constructing an optimization model with the goal of minimizing the power adjustment amount and formulating corresponding constraint conditions. At the same time, constructing a power adjustment amount change model. Under the condition of meeting the constraint conditions, solving the optimization model to obtain the current adjustment amount, and adjusting the current passing through the electrolytic cell accordingly. By collecting the operation data in real time, dynamically calculating the equivalent resistance and constructing an electrical model, the present invention can dynamically reflect the actual operation state of the electrolytic cell, avoiding the problem of the decrease in the model accuracy caused by fixed or untimely updated parameters.

Description

Technical Field

[0001] The present invention relates to a method, device and medium for regulating electrolytic lead load to participate in power grid demand response, and belongs to the technical field of electrolytic lead load regulation. Background Art

[0002] With the rapid growth of power demand and the continuous increase in the proportion of renewable energy generation, the stability and reliability of the power grid face unprecedented challenges. To address this issue, demand response technology has gradually become an important means of power system management. Demand response adjusts the electricity load to achieve power grid supply-demand balance and improve system operation efficiency and economy. In the industrial field, the electrolytic lead load, as a high-energy-consuming device, has great power regulation potential and thus has important application value in power grid demand response. During the electrolytic lead production process, the electrolytic cell is the core device, and its operating state directly affects the production efficiency and energy consumption level of electrolytic lead. The power output of the electrolytic cell is closely related to the temperature of the electrolyte, the current intensity, and the equivalent resistance of the electrolytic cell. By adjusting the current of the electrolytic cell, power dynamic adjustment can be achieved to a certain extent to respond to the demand instructions of the power grid.

[0003] The power regulation of the electrolytic cell needs to quickly respond to power grid instructions, but the existing methods do not fully consider the mechanical response delay and thermal inertia during the current adjustment process, resulting in a long adjustment time and difficulty in meeting the real-time requirements of the power grid.

[0004] The prior art, such as the Chinese patent application with the publication number CN117669448A, discloses a method for determining the efficiency of an electrolytic cell and a method for determining the equivalent circuit model of an electrolytic cell, including the following steps: obtaining the equivalent circuit model corresponding to the target electrolytic cell, where the equivalent circuit model is used to characterize the equivalent resistance and structural characteristics of each part in the target electrolytic cell; obtaining the total current for powering the equivalent circuit model, where the current value of the total current is the first current value; determining the second current value of the effective current in the equivalent circuit model, where the effective current is the current in the circuit equivalent to the part used for electrolysis reaction in the target electrolytic cell; and determining the working efficiency parameter of the target electrolytic cell based on the first current value and the second current value. However, the accuracy of the above-mentioned patent equivalent circuit model highly depends on the determination methods of the equivalent resistance and the voltage source. Although the equivalent resistance of the electrolyte considers factors such as concentration and temperature, these parameters are not updated in real time, which may lead to a decrease in model accuracy. And the model construction and efficiency evaluation are usually based on certain test conditions (such as cell voltage, cell temperature, electrolyte concentration, etc.), and these conditions may be different from the actual operating conditions. Summary of the Invention

[0005] In order to solve the problems existing in the above-mentioned prior art, the present invention proposes a method, device and medium for regulating electrolytic lead load to participate in power grid demand response.

[0006] The technical solution of the present invention is as follows:

[0007] On the one hand, the present invention provides a method for regulating the electrolytic lead load to participate in the power grid demand response, including the following steps:

[0008] Obtain the operation data of the electrolytic cell of the electrolytic lead load, and determine the equivalent resistance of the electrolytic cell based on the operation data; the operation data includes the temperature of the electrolyte and the current passing through the electrolytic cell;

[0009] Construct an electrical model of the electrolytic lead load based on the equivalent resistance of the electrolytic cell and the operation data, and output the power of the electrolytic cell;

[0010] Obtain the power command value issued by the power grid, and calculate the power adjustment amount of the electrolytic cell based on the power command value and the power of the electrolytic cell;

[0011] Construct an adjustment optimization model with the goal of minimizing the power adjustment amount, and formulate corresponding constraint conditions;

[0012] Construct a power adjustment amount change model, which is used to represent the relationship between the change of the temperature of the electrolyte over time and the change of the current of the electrolytic cell over time and the magnitude of the power adjustment amount;

[0013] Solve the adjustment optimization model based on the constraint conditions and the relationship to obtain the current adjustment amount, and adjust the current passing through the electrolytic cell based on the current adjustment amount.

[0014] As a preferred embodiment, determining the equivalent resistance of the electrolytic cell based on the operation data is expressed by the formula:

[0015] ;

[0016] ;

[0017] In the formula, represents the equivalent resistance of the electrolytic cell at time represents the total duration of the electrolytic lead load participating in the power grid demand response, represents the initial equivalent resistance of the electrolytic cell, represents the temperature of the electrolyte at time represents the initial temperature of the electrolyte, represents the resistance temperature coefficient, represents the current passing through the electrolytic cell at time represents the current skin effect loss coefficient, represents the time variable.

[0018] As a preferred embodiment, an electrical model of the lead electrolysis load is constructed based on the equivalent resistance of the electrolytic cell and the operating data, and the power of the electrolytic cell is output. The specific steps are as follows:

[0019] Determine the terminal voltage of the electrolytic cell based on the equivalent resistance of the electrolytic cell and the back electromotive force of the electrolytic cell. It is expressed by the formula:

[0020] ;

[0021] In the formula, represents the terminal voltage of the electrolytic cell at time represents the back electromotive force of the electrolytic cell, represents the inductance coefficient, represents the change of the current passing through the electrolytic cell with respect to time at time

[0022] Construct an electrical model of the lead electrolysis load based on the terminal voltage of the electrolytic cell and the current passing through the electrolytic cell. It is expressed by the formula:

[0023] ;

[0024] In the formula, represents the power of the electrolytic cell at time

[0025] As a preferred embodiment, calculate the power adjustment amount of the electrolytic cell based on the power command value and the power of the electrolytic cell. It is expressed by the formula:

[0026] ;

[0027] In the formula, represents the power command value issued by the power grid at time and represents the power adjustment amount of the electrolytic cell at time

[0028] As a preferred embodiment, construct an adjustment optimization model with the goal of minimizing the power adjustment amount and formulate corresponding constraint conditions. It is expressed by the formula:

[0029] ;

[0030] In the formula, represents the minimum value function, represents the weight coefficient of the power grid command tracking error, represents the weight coefficient of the response time, represents the weight coefficient of the load production loss, represents the weight coefficient of the service life loss of the electrolytic cell, Indicates the actual response time of the electrolytic lead load, Indicates the power regulation cost for the electrolytic lead load to participate in demand response, Indicates the total number of power adjustments of the electrolytic cell, Indicates the power adjustment times index, Indicates at the th adjustment, the adjustment component of the current passing through the electrolytic cell, Indicates the rated current of the electrolytic cell, Indicates the non-linear aging coefficient of the electrolytic cell;

[0031] The said constraint condition is expressed by the formula as:

[0032] ;

[0033] In the formula, Indicates the constraint condition, Indicates the maximum power adjustment amount of the electrolytic cell at the Indicates the upper limit of the adjustment time for the load participating in demand response stipulated by the power grid, Indicates the rated power of the electrolytic cell, Indicates the thermal time constant of the electrolytic cell.

[0034] As a preferred implementation mode, a power adjustment amount change model is constructed, and is expressed by the formula as:

[0035] ;

[0036] In the formula, Indicates the mechanical response delay time, Indicates the integral variable in the time dimension, Indicates the differential element marking the integral variable, Indicates at the partial derivative of the power of the electrolytic cell with respect to the current passing through the electrolytic cell at the Indicates at the change of the current passing through the electrolytic cell with respect to time at the Indicates at the partial derivative of the power of the electrolytic cell with respect to the temperature of the electrolyte at the Indicates at the change of the temperature of the electrolyte with respect to time at the

[0037] As a preferred implementation mode, the change of the temperature of the electrolyte with respect to time is expressed by the formula as:

[0038] ;

[0039] In the formula, Indicates the density of the electrolyte, Represents the specific heat capacity of the electrolyte, Represents The ambient temperature at time Represents the convective heat transfer coefficient, Represents the cross-sectional area of the electrolytic cell, Represents The current passing through the electrolytic cell at time Represents The temperature of the electrolyte at time Represents The equivalent resistance of the electrolytic cell at time

[0040] As a preferred implementation, corresponding constraint conditions are formulated. Based on the constraint conditions and the relationship, the regulation optimization model is solved to obtain the current adjustment amount. The specific steps are as follows:

[0041] The total duration of the electrolytic lead load participating in the power grid demand response Is divided into Equal-length time periods, which can be expressed by the formula:

[0042] ;

[0043] ;

[0044] ;

[0045] In the formula, Represents the th time period;

[0046] Calculate the current adjustment amount passing through the electrolytic cell in the th time period Which can be expressed by the formula:

[0047] ;

[0048] ;

[0049] In the formula, Represents the current adjustment amount passing through the electrolytic cell in the th time period , Represents the binary variable at time , Represents the adjustment component of the current passing through the electrolytic cell at time , Represents the initial value of the current;

[0050] Take The current adjustment amount passing through the electrolytic cell in the time period as the decision variable, and use the optimization solver in the mathematical calculation and simulation software matlab to solve the regulation optimization model;

[0051] The solution process formulates the following constraints, which are expressed by the formula as:

[0052] ;

[0053] In the formula, represents the preset maximum allowable adjustment times, represents the minimum current value for the safe production of electrolytic lead load, represents the maximum current value for the safe production of electrolytic lead load, represents the minimum electrolytic cell temperature for the safe production of electrolytic lead load, represents the maximum electrolytic cell temperature for the safe production of electrolytic lead load, represents at the temperature change at the moment;

[0054] Among them, the calculation method of the temperature change is expressed by the formula as:

[0055] ;

[0056] In the formula, represents the initial temperature of the electrolyte.

[0057] On the other hand, the present invention also provides an electronic device, on which a computer program is stored, and when the computer program is executed by a processor, it implements the method for regulating the electrolytic lead load to participate in the power grid demand response as described in any embodiment of the present invention.

[0058] On the other hand, the present invention also provides a computer-readable storage medium for storing one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors are enabled to implement the method for regulating the electrolytic lead load to participate in the power grid demand response as described in any embodiment of the present invention.

[0059] The present invention has the following beneficial effects:

[0060] 1. By collecting the operation data of the electrolytic cell (such as the electrolyte temperature and current), calculating the equivalent resistance of the electrolytic cell in real time, and constructing an electrical model, the present invention can dynamically reflect the actual operation state of the electrolytic cell. This enables the present invention to avoid the problem of the decrease in model accuracy caused by fixed or untimely updated parameters in the traditional method.

[0061] 2. By constructing an optimization model with the goal of minimizing the power adjustment amount and combining the constraint conditions (such as current range, temperature range, etc.), the present invention ensures that the power adjustment path of the electrolytic cell is optimal, thereby realizing precise regulation.

[0062] 3. In the present invention, a grid command tracking error weight coefficient and a response time weight coefficient are introduced through optimization of the model to ensure that the electrolytic lead load can quickly respond to the power command issued by the grid.

[0063] 4. In the present invention, by constructing a power adjustment amount change model, the influence of the change of electrolyte temperature and current over time on the power adjustment amount is quantified, avoiding the problem of too long adjustment time caused by mechanical response delay and thermal inertia. Description of the Drawings

[0064] Figure 1 is a flowchart of the method implementation of the present invention. Detailed Embodiments

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0066] It should be understood that the step numbers used in the text are only for convenient description and do not limit the execution order of the steps.

[0067] It should be understood that the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless otherwise clearly specified in the context, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0068] The terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0069] The term "and / or" refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0070] Embodiment 1:

[0071] Refer to Figure 1 , this embodiment provides a method for regulating the electrolytic lead load to participate in the grid demand response, including the following steps:

[0072] Obtain the operation data of the electrolytic cell of the electrolytic lead load, and determine the equivalent resistance of the electrolytic cell based on the operation data; the operation data includes the temperature of the electrolyte and the current passing through the electrolytic cell;

[0073] Construct an electrical model of the electrolytic lead load based on the equivalent resistance of the electrolytic cell and the operating data, and output the power of the electrolytic cell.

[0074] Obtain the power command value issued by the power grid, and calculate the power adjustment amount of the electrolytic cell based on the power command value and the power of the electrolytic cell.

[0075] Construct a regulation optimization model with the goal of minimizing the power adjustment amount, and formulate corresponding constraint conditions.

[0076] Construct a power adjustment amount change model, which is used to represent the relationship between the temperature of the electrolyte changing with time and the current of the electrolytic cell changing with time and the magnitude of the power adjustment amount.

[0077] Solve the regulation optimization model based on the constraint conditions and the relationship to obtain the current adjustment amount, and adjust the current passing through the electrolytic cell based on the current adjustment amount.

[0078] As a preferred embodiment, determine the equivalent resistance of the electrolytic cell based on the operating data, which is expressed by the formula:

[0079] ;

[0080] ;

[0081] In the formula, represents the equivalent resistance of the electrolytic cell at time represents the total duration of the electrolytic lead load participating in the power grid demand response, represents the initial equivalent resistance of the electrolytic cell, represents the temperature of the electrolyte at time represents the initial temperature of the electrolyte, represents the resistance temperature coefficient, represents the current passing through the electrolytic cell at time represents the current skin effect loss coefficient, represents the time variable.

[0082] The electrolytic cell is the core production equipment of the electrolytic lead load and the key device for realizing the conversion of electrical energy into chemical energy. By applying a large current and a low voltage in the electrolytic cell, lead ions are induced to move directionally in the electrolyte and redox reactions occur on the electrode surface, thereby refining crude lead into high-purity lead products. In this process, the magnitudes of the operating current and voltage of the electrolytic cell directly determine the power of the electrolytic lead load.

[0083] As a preferred embodiment, an electrical model of the electrolytic lead load is constructed based on the equivalent resistance of the electrolytic cell and the operating data, and the power of the electrolytic cell is output. The specific steps are as follows:

[0084] Determine the terminal voltage of the electrolytic cell based on the equivalent resistance of the electrolytic cell and the back electromotive force of the electrolytic cell. It is expressed by the formula:

[0085] ;

[0086] In the formula, represents the terminal voltage of the electrolytic cell at time represents the back electromotive force of the electrolytic cell, represents the inductance coefficient, represents the change of the current passing through the electrolytic cell with respect to time at time

[0087] Construct an electrical model of the electrolytic lead load based on the terminal voltage of the electrolytic cell and the current passing through the electrolytic cell. It is expressed by the formula:

[0088] ;

[0089] In the formula, represents the power of the electrolytic cell at time

[0090] As a preferred embodiment, calculate the power adjustment amount of the electrolytic cell based on the power command value and the power of the electrolytic cell. It is expressed by the formula:

[0091] ;

[0092] In the formula, represents the power command value issued by the power grid at time and represents the power adjustment amount of the electrolytic cell at time

[0093] As a preferred embodiment, construct a regulation optimization model with the goal of minimizing the power adjustment amount and formulate corresponding constraint conditions. It is expressed by the formula:

[0094] ;

[0095] In the formula, represents the minimum value function, represents the power grid command tracking error weight coefficient, represents the response time weight coefficient, represents the load production loss weight coefficient, represents the electrolytic cell service life loss weight coefficient, Indicates the actual response time of the electrolytic lead load, Indicates the power regulation cost for the electrolytic lead load to participate in demand response, Indicates the total number of power adjustments of the electrolyzer, Indicates the power adjustment times index, Indicates at the th adjustment, the adjustment component of the current passing through the electrolyzer, Indicates the rated current of the electrolyzer, Indicates the non-linear aging coefficient of the electrolyzer;

[0096] The above-mentioned constraint conditions are expressed by the formula as:

[0097] ;

[0098] In the formula, Indicates the constraint condition, Indicates the maximum power adjustment amount of the electrolyzer at the Indicates the upper limit of the adjustment time for the load participating in demand response stipulated by the power grid, Indicates the rated power of the electrolyzer, Indicates the thermal time constant of the electrolyzer.

[0099] During the electrolysis process of the electrolytic lead load, part of the electrical energy is converted into reaction heat, part is dissipated into the environment, and the remaining heat will cause the temperature of the electrolyte to rise. Excessive temperature will affect the reaction efficiency. Therefore, it is necessary to establish a model for the change of the power adjustment amount to analyze the influence of power regulation on the temperature.

[0100] As a preferred implementation method, a model for the change of the power adjustment amount is constructed, and it is expressed by the formula as:

[0101] ;

[0102] In the formula, Indicates the mechanical response delay time, Indicates the integration variable in the time dimension, Indicates the differential element marking the integration variable, Indicates at the partial derivative of the power of the electrolyzer with respect to the current passing through the electrolyzer at the Indicates at the change of the current passing through the electrolyzer with respect to time at the Indicates at the partial derivative of the power of the electrolyzer with respect to the temperature of the electrolyte at the Indicates at the change of the temperature of the electrolyte with respect to time at the

[0103] Among them, if the lower limit of integration If so, the lower limit of integration is regarded as 0.

[0104] As a preferred embodiment, the change of the temperature of the electrolyte over time is expressed by the formula:

[0105] ;

[0106] In the formula, represents the density of the electrolyte, represents the specific heat capacity of the electrolyte, represents the ambient temperature at time represents the convective heat transfer coefficient, represents the cross-sectional area of the electrolytic cell, represents the current passing through the electrolytic cell at time represents the temperature of the electrolyte at time represents the equivalent resistance of the electrolytic cell at time.

[0107] As a preferred embodiment, corresponding constraint conditions are formulated, and based on the constraint conditions and the relationship, an adjustment and optimization model is solved to obtain the current adjustment amount. The specific steps are as follows:

[0108] The total duration of the electrolytic lead load participating in the grid demand response is divided into equal-length time periods, which is expressed by the formula:

[0109] ;

[0110] ;

[0111] ;

[0112] In the formula, represents the th time period;

[0113] Calculate the current adjustment amount passing through the electrolytic cell in the th time period which is expressed by the formula:

[0114] ;

[0115] ;

[0116] In the formula, represents the current adjustment amount passing through the electrolytic cell in the th time period , represents at A binary variable at a moment. If is 1, the current passing through the electrolytic cell is adjusted. If is 0, no adjustment is made. represents the adjustment component of the current passing through the electrolytic cell at moment. represents the initial value of the current;

[0117] Take the current adjustment amount passing through the electrolytic cell during the

[0118] time period as the decision variable, and use the optimization solver in the mathematical calculation and simulation software Matlab to solve the regulation optimization model;

[0119] ;

[0120] In the formula, represents the preset maximum allowable adjustment times, represents the minimum current for the safe production of electrolytic lead load, represents the maximum current for the safe production of electrolytic lead load, represents the minimum temperature of the electrolytic cell for the safe production of electrolytic lead load, represents the maximum temperature of the electrolytic cell for the safe production of electrolytic lead load, represents at the temperature change amount at moment;

[0121] Among them, the calculation method of the temperature change amount is expressed by the formula:

[0122] ;

[0123] In the formula, represents the initial temperature of the electrolyte.

[0124] Embodiment 2:

[0125] This embodiment provides an electronic device with a computer program stored thereon. When the computer program is executed by a processor, it implements the method for regulating the electrolytic lead load to participate in the power grid demand response as described in any embodiment of the present invention.

[0126] Embodiment 3:

[0127] This embodiment provides a computer-readable storage medium for storing one or more programs. When the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the method for regulating the electrolytic lead load to participate in the power grid demand response as described in any embodiment of the present invention.

[0128] In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent the cases of A existing alone, A and B existing simultaneously, and B existing alone. Here, A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after. "At least one of the following" and its similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, and c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0129] Those of ordinary skill in the art can realize that the various units and algorithm steps described in the embodiments disclosed herein can be implemented by a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0130] Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0131] In several embodiments provided by the present application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (hereinafter referred to as ROM), random access memories (hereinafter referred to as RAM), magnetic disks, or optical discs that can store program codes.

[0132] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A method for controlling the participation of electrolytic lead load in power grid demand response, characterized in that: The following steps are involved: The operation data of the electrolytic cell of the lead electrolysis load is obtained, and the equivalent resistance of the electrolytic cell is determined based on the operation data, which is expressed as: ； ； In the formula, express The equivalent resistance of the electrolytic cell at time represents the total time that the electrolytic lead load participates in the grid demand response, represents the initial equivalent resistance of the electrolytic cell, express The temperature of the electrolyte at that moment, represents the initial temperature of the electrolyte, represents the temperature coefficient of resistance, express The current passing through the electrolytic cell at any moment, represents the current skin effect loss coefficient, represents the time variable; The operating data include the temperature of the electrolyte and the current passing through the electrolytic cell; Based on the equivalent resistance of the electrolytic cell and the operating data, an electrical model of the electrolytic lead load is constructed to output the power of the electrolytic cell. The specific steps are: The terminal voltage of the electrolytic cell is determined based on the equivalent resistance of the electrolytic cell and the back electromotive force of the electrolytic cell, which is expressed as follows: ； In the formula, express The terminal voltage of the electrolytic cell at the moment, represents the back electromotive force of the electrolytic cell, represents the inductance, express The change of the current passing through the electrolytic cell at any moment with respect to time; The electrical model of the electrolytic lead load is constructed based on the terminal voltage of the electrolytic cell and the current passing through the electrolytic cell, which is expressed as follows: ； In the formula, express The power of the electrolyzer at the moment; Obtaining a power command value issued by the power grid, and calculating a power adjustment amount of the electrolyzer based on the power command value and the power of the electrolyzer; Construct a regulation optimization model with the goal of minimizing power adjustment and formulate corresponding constraints; Constructing a power adjustment amount variation model, wherein the power adjustment amount variation model is used to represent the relationship between the temperature variation of the electrolyte and the current variation of the electrolytic cell over time and the magnitude of the power adjustment amount; A regulation optimization model is solved based on the constraint conditions and the relationship to obtain a current adjustment amount, and the current passing through the electrolytic cell is adjusted based on the current adjustment amount.

2. The method for controlling the electrolytic lead load to participate in the grid demand response according to claim 1, characterized in that: The power adjustment amount of the electrolytic cell is calculated based on the power command value and the power of the electrolytic cell, which is expressed as follows: ； In the formula, Indicated in The power command value issued by the power grid at the moment, express The power adjustment of the electrolytic cell at this moment.

3. The method for controlling the electrolytic lead load to participate in the grid demand response according to claim 2, characterized in that: Construct a regulation optimization model with the goal of minimizing the power adjustment amount, and formulate corresponding constraints, which are expressed as follows; ； In the formula, represents the minimum function, represents the grid command tracking error weight coefficient, represents the response time weight coefficient, represents the load production loss weight coefficient, represents the weight coefficient of electrolytic cell life loss, Indicates the actual response time of electrolytic lead load, represents the power regulation cost of electrolytic lead load participating in demand response, Indicates the total number of power adjustments of the electrolyzer, Indicates the power adjustment times index. Indicated in The adjustment component of the current passing through the electrolytic cell during the first adjustment, Indicates the rated current of the electrolytic cell, Indicates the nonlinear aging coefficient of the electrolytic cell; The constraint condition is expressed as: ； In the formula, represents the constraints, express The maximum power adjustment of the electrolytic cell at the moment, It indicates the upper limit of the load regulation time for participating in demand response specified by the power grid. Indicates the rated power of the electrolyzer, Represents the thermal time constant of the electrolytic cell.

4. The method for controlling the electrolytic lead load to participate in the grid demand response according to claim 3, characterized in that: Construct a power adjustment change model, which is expressed as follows: ； In the formula, Indicates the mechanical response delay time, represents the integral variable in the time dimension, represents the differential element of the labeled integral variable, Indicated in The partial derivative of the power of the electrolytic cell with respect to the current passing through the electrolytic cell at time , Indicated in The change of the current passing through the electrolytic cell with time, Indicated in The partial derivative of the power of the electrolytic cell with respect to the temperature of the electrolyte at time t, Indicated in The change of electrolyte temperature over time.

5. The method for controlling the electrolytic lead load to participate in the grid demand response according to claim 4, characterized in that: The change of the temperature of the electrolyte over time is expressed as follows: ； In the formula, represents the electrolyte density, is the specific heat capacity of the electrolyte, express The ambient temperature at the moment, represents the convective heat transfer coefficient, represents the cross-sectional area of ​​the electrolytic cell, express The current passing through the electrolytic cell at any moment, express The temperature of the electrolyte at that moment, express The equivalent resistance of the electrolytic cell at time .

6. The method for controlling the electrolytic lead load to participate in the grid demand response according to claim 5, characterized in that: Formulate corresponding constraints and solve the regulation optimization model based on the constraints and the relationship to obtain the current adjustment amount. The specific steps are: The total time that the electrolytic lead load participates in grid demand response Divide into The formula for this is: ； ； ； In the formula, Indicates time period; Calculate the Time The current adjustment through the electrolytic cell is expressed as: ； ； In the formula, Indicated in Time period The amount of current adjustment through the electrolyzer, Indicated in A binary variable at time, Indicated in The adjustment component of the current passing through the electrolytic cell at the moment, Indicates the initial value of current; Will The current adjustment amount passing through the electrolyzer during the time period is taken as the decision variable, and the optimization solver in the mathematical calculation and simulation software MATLAB is used to solve the regulation optimization model; The solution process formulates the following constraints, which are expressed as follows: ； In the formula, Indicates the preset maximum number of allowed adjustments. Indicates the minimum current value for safe production of electrolytic lead load, Indicates the maximum current value for safe production of electrolytic lead load, It indicates the minimum value of the electrolytic cell temperature for safe production of electrolytic lead load. Indicates the maximum value of the electrolytic cell temperature for safe production of electrolytic lead load, Indicated in Temperature change at each moment; The calculation method of temperature change is expressed as follows: ； In the formula, Indicates the initial temperature of the electrolyte.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the method for controlling the electrolytic lead load participating in the grid demand response is implemented as described in any one of claims 1 to 6.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method for controlling the electrolytic lead load participating in power grid demand response as described in any one of claims 1 to 6 is implemented.

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