Control method for an electric hydrogen production plant and electric hydrogen production plant

Abstract

This application discloses a control method for an electric hydrogen production station and an electric hydrogen production station. The method is applied to an electric hydrogen production station, which includes a first frequency controller and multiple hydrogen production units. The method includes: acquiring the real-time operating frequency of the power grid supplying power to the electric hydrogen production station through the first frequency controller; determining the frequency deviation of the power grid based on the real-time operating frequency and a preset base frequency; if the frequency deviation exceeds a first frequency deviation range, determining corresponding power adjustment parameters based on the maximum frequency regulation capacity of the electrolyzer; adjusting the power consumption of the corresponding electrolyzer within a second frequency deviation range using the first frequency controller and based on the power adjustment parameters; and adjusting the power consumption of at least one hydrogen production unit through a second frequency controller upon receiving an automatic power generation control signal. This method improves hydrogen production efficiency and profitability.

Description

Technical Field

[0001] This application relates to the field of control of electric hydrogen production stations, and in particular to a control method for an electric hydrogen production station and an electric hydrogen production station. Background Technology

[0002] As the construction of new power systems deepens, a large number of highly volatile and intermittent renewable energy sources, such as wind and solar power, will be connected to the grid. Short-term and long-term power imbalances will become more pronounced in these new power systems, leading to system frequency degradation and a greater demand for flexible resources for frequency regulation. Hydrogen energy, based on renewable energy, is expected to become an important pathway for decarbonization in the chemical and transportation industries, and electro-hydrogen production systems are expected to become the largest single load in these new power systems.

[0003] Generally, an electrolytic hydrogen production plant consists of multiple electrolyzer systems, with each electrolyzer typically a 5MW alkaline electrolyzer or a proton exchange membrane electrolyzer, both based on mature technology. The external power grid is connected to the plant via 35kV / 10kV transformers, and reactive power compensation equipment is installed on the 10kV common bus. In an electrolytic hydrogen production plant, the core electrochemical reaction involves separating water into hydrogen and oxygen in the electrolyzer by injecting electrical energy. Power electronic converter interfaces are responsible for converting the current from alternating current (AC) to direct current (DC), and then delivering the controlled DC power to the electrolyzer. The electrolyzer is typically a high-current power load. In large-scale mixed-use hydrogen production plants, alkaline electrolyzers and proton exchange membrane electrolyzers are often used in combination. Alkaline electrolyzers and proton exchange membrane electrolyzers have different dynamic response characteristics, requiring different control strategies and methods.

[0004] Currently, the energy control method for traditional electrolytic hydrogen production plants determines the operating status (on or off) of multiple stacks based on current and temperature, causing them to operate in accordance with peak shaving commands. This approach does not adequately consider the differences in regulation characteristics among different electrolyzers in mixed-power electrolytic hydrogen production plants, and instead employs control strategies suitable only for mixed-power electrolytic hydrogen production plants. This results in poor control of electrolytic hydrogen production plants and low returns. Summary of the Invention

[0005] The purpose of this application is to provide a control method for an electric hydrogen production station, which can improve the hydrogen production efficiency and revenue of the electric hydrogen production station.

[0006] To achieve the above objectives, an embodiment of this application provides a control method for an electric hydrogen production station, applied to an electric hydrogen production station. The electric hydrogen production station includes a first frequency controller and multiple hydrogen production units respectively connected to the first frequency controller. Each hydrogen production unit is equipped with a corresponding electrolyzer. The method includes:

[0007] The real-time operating frequency of the power grid used to supply power to the electric hydrogen production station is obtained through the first frequency modulation controller.

[0008] Based on the real-time operating frequency and the preset base frequency, the frequency deviation of the power supply grid is determined;

[0009] If the frequency deviation exceeds the first frequency deviation range, then the corresponding power adjustment parameters are determined based on the maximum frequency modulation capacity of the electrolytic cell, wherein the maximum frequency modulation capacity of the electrolytic cell is associated with the type of the electrolytic cell;

[0010] Using the first frequency modulation controller and based on the power adjustment parameters, the power consumption of the corresponding electrolytic cell is adjusted within the second frequency deviation range, wherein the first frequency deviation range is adjacent to the second frequency deviation range;

[0011] Upon receiving an automatic power generation control signal, the power consumption of at least one of the hydrogen production units is adjusted via a second frequency controller, wherein the automatic power generation control signal is generated based on the current state of the plurality of hydrogen production power plants.

[0012] Optionally, if the frequency deviation exceeds the first frequency deviation range, then based on the maximum frequency modulation capacity of the electrolytic cell, a corresponding power adjustment parameter is determined, including:

[0013] The maximum frequency modulation capacity of the electrolytic cell is determined based on its maximum power capacity.

[0014] The dynamically changing power adjustment parameters are determined based on the maximum frequency modulation capacity of the electrolytic cell and the values ​​within the second frequency deviation range.

[0015] Optionally, the second frequency deviation range includes multiple range intervals, and the step of adjusting the power consumption of the corresponding electrolytic cell within the second frequency deviation range using the first frequency modulation controller and based on the power adjustment parameters includes:

[0016] Within each range of the second frequency deviation range, determine the correspondence between the frequency deviation of the power grid and the value of the power adjustment parameter;

[0017] Based on the frequency deviation of the power grid and the corresponding relationship, the power consumption of the electrolytic cell can be increased or decreased.

[0018] Optionally, the method further includes:

[0019] If the frequency deviation exceeds the boundary value of the second frequency deviation range, the power consumption of the electrolytic cell will no longer be increased or decreased.

[0020] Optionally, adjusting the power consumption of at least one of the hydrogen production units via a second frequency controller includes:

[0021] The hydrogen production units are sorted according to their current power.

[0022] If the uneven power of the electric hydrogen production station is less than the required power of the electric hydrogen production station, then based on the automatic power generation control signal, a corresponding sub-control signal is sent to each of the hydrogen production units to adjust the power consumption of each hydrogen production unit respectively.

[0023] Optionally, adjusting the power consumption of at least one of the hydrogen production units via a second frequency controller includes:

[0024] Based on the sorted sequence information of the hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units, the first hydrogen production unit in the first sequence position in the sequence information is determined.

[0025] Based on the first sequence position and the number of hydrogen production units of each type, the adjustment range for the sorted hydrogen production units is determined.

[0026] Send corresponding power adjustment commands to the hydrogen production units that are within the adjustment range.

[0027] Optionally, determining the first hydrogen production unit at a first sequence position in the sequence information based on the sorted sequence information of the hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units includes:

[0028] Based on the sequence information of the sorted hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units, a first constraint condition is formed.

[0029] The first hydrogen production unit is determined under a first constraint condition, wherein the first constraint condition includes the following set of formulas:

[0030]

[0031] Where m is the number of alkaline hydrogen production units in the electric hydrogen production station; n is the number of proton exchange membrane hydrogen production units in the electric hydrogen production station; P is the first sequence position of the first hydrogen production unit in the sequence information; P k,t P represents the power output of the k-th hydrogen production unit during the t-th time period. AGC P represents the required power output of the aforementioned electro-hydrogen production station. p-1,t P represents the power output of the (p-1)th hydrogen production unit at time t.p,t Let p be the power of the hydrogen production unit at time t.

[0032] This application also provides an electric hydrogen production station, including:

[0033] Multiple hydrogen production units are used for hydrogen electrolysis, and each hydrogen production unit is equipped with a corresponding electrolysis cell.

[0034] A first frequency control controller is connected to each of the hydrogen production units. The first frequency control controller is configured to: acquire the real-time operating frequency of the power grid used to supply power to the electro-hydrogen production station; determine the frequency deviation of the power grid based on the real-time operating frequency and a preset base frequency; if the frequency deviation exceeds a first frequency deviation range, determine a corresponding power adjustment parameter based on the maximum frequency regulation capacity of the electrolyzer, wherein the maximum frequency regulation capacity of the electrolyzer is associated with the type of the electrolyzer; and adjust the power consumption of the corresponding electrolyzer within a second frequency deviation range based on the power adjustment parameter, wherein the first frequency deviation range is adjacent to the second frequency deviation range.

[0035] A second frequency control controller, connected to the first frequency control controller, is configured to adjust the power consumption of at least one of the hydrogen production units upon receiving an automatic power generation control signal, wherein the automatic power generation control signal is generated based on the current state of the plurality of hydrogen production power plants.

[0036] Optionally, the first frequency modulation controller is further configured as follows:

[0037] The maximum frequency modulation capacity of the electrolytic cell is determined based on its maximum power capacity.

[0038] The dynamically changing power adjustment parameters are determined based on the maximum frequency modulation capacity of the electrolytic cell and the values ​​within the second frequency deviation range.

[0039] Optionally, the first frequency modulation controller is further configured as follows:

[0040] Within each range of the second frequency deviation range, determine the correspondence between the frequency deviation of the power grid and the value of the power adjustment parameter;

[0041] Based on the frequency deviation of the power grid and the corresponding relationship, the power consumption of the electrolytic cell can be increased or decreased.

[0042] This application also provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of the method described above.

[0043] This application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described above.

[0044] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the method described above.

[0045] The control method of this application embodiment fully considers that there are different types of electrolyzers in the electric hydrogen production station. By adjusting the first and second frequency of the electric hydrogen production station, the power consumption of each hydrogen production unit in the electric hydrogen production station is flexibly adjusted, so that the electric hydrogen production station operates smoothly, improves hydrogen production efficiency and revenue, and also ensures the stable operation of the entire hydrogen production system and power grid. Attached Figure Description

[0046] Figure 1 This is a flowchart of a control method for an electro-hydrogen production station according to an embodiment of this application;

[0047] Figure 2 Examples of embodiments of this application Figure 1 A flowchart of one embodiment of step S300;

[0048] Figure 3 Examples of embodiments of this application Figure 1 A flowchart of one embodiment of step S400;

[0049] Figure 4 Examples of embodiments of this application Figure 1 A flowchart of one embodiment of step S500;

[0050] Figure 5 Examples of embodiments of this application Figure 1 A flowchart of another embodiment of step S500;

[0051] Figure 6 This is a schematic diagram of the structural relationship of an electro-hydrogen production station according to an embodiment of this application;

[0052] Figure 7 This is a schematic diagram illustrating the relationship between frequency and power during the process of the first frequency modulation controller adjusting the power consumption of the electrolytic cell according to an embodiment of this application.

[0053] Figure 8 This is a flowchart illustrating a specific implementation of the second frequency modulation method according to an embodiment of this application.

[0054] Figure 9 This is a structural block diagram of an electro-hydrogen production station according to an embodiment of this application. Detailed Implementation

[0055] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0056] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this application will be apparent to those skilled in the art.

[0057] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0058] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0059] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application.

[0060] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0061] Specific embodiments of this application are described thereafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in a variety of substantially any suitable detailed structures.

[0062] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0063] This application discloses a control method for an electrolytic hydrogen production station, applied to such a station for electrolyzing hydrogen to generate hydrogen energy. The electrolytic hydrogen production station can regulate the power frequency (power frequency refers to the number of alternating current cycles per unit time) to adjust the active power output of the associated generator sets, ensuring that the frequency of the power applied to the station remains within an allowable deviation range.

[0064] The electro-hydrogen production station in this embodiment includes a first frequency controller, a second frequency controller connected to the first frequency controller, and multiple hydrogen production units respectively connected to the first frequency controller. Each hydrogen production unit is equipped with a rectifier and a corresponding electrolyzer. The electrolyzer is used to electrolyze hydrogen to generate hydrogen energy. Electrolyzers come in various types, including alkaline electrolyzers and proton exchange membrane electrolyzers; different types of electrolyzers have different characteristics. Based on the above-described structure of the electric hydrogen production station, the control method of this application embodiment includes: adjusting the frequency of the electric hydrogen production station for the first time through a first frequency controller according to the current operating frequency of the electric hydrogen production station, thereby adjusting the power consumption of multiple hydrogen production units in the electric hydrogen production station for the first time; and adjusting the frequency of the current electric hydrogen production station for the second time through a local second frequency controller according to the overall status information of each electric hydrogen production station in the power grid, thereby adjusting the power consumption of multiple hydrogen production units in the electric hydrogen production station for the second time, thereby ensuring that the current electric hydrogen production station operates smoothly, increases hydrogen production efficiency and revenue, and also ensures the stable operation of the entire hydrogen production system and the power grid.

[0065] The control method of this application embodiment will now be described in detail with reference to the accompanying drawings. Figure 1 As shown and combined Figure 6 The method described in this application embodiment includes the following steps:

[0066] S100, the real-time operating frequency of the power grid used to supply power to the electro-hydrogen production station is obtained through the first frequency modulation controller.

[0067] For example, an electrolytic hydrogen production plant can electrolyze hydrogen and connect to an external power grid, which then supplies power to the plant. The plant comprises multiple hydrogen production units, each including a rectifier and an electrolyzer. These electrolyzers, used for electrolyzing hydrogen, come in various types, each with different characteristics.

[0068] The electric hydrogen production station is equipped with a first frequency controller, which is connected to each hydrogen production unit, thereby enabling the adjustment of the power consumption of each hydrogen production unit.

[0069] The real-time operating frequency of the power grid is obtained through the first frequency controller. The real-time operating frequency is the frequency of the power supplied by the power grid to the current hydrogen production plant, which can be the real-time frequency of the electricity. Specifically, the real-time operating frequency can be obtained by the first frequency controller collecting data through acquisition equipment set on the external power grid, or by the first frequency controller directly collecting the data, analyzing the collected data, and determining the real-time operating frequency.

[0070] S200, based on the real-time operating frequency and the preset base frequency, determine the frequency deviation of the power supply grid.

[0071] For example, a preset base frequency for the power grid is set for a current hydrogen production station. This preset base frequency can be pre-set using empirical data or other verification data. If the power grid supplies power to the hydrogen production station at the preset base frequency, it is compatible with the power consumption of the hydrogen production station. In real-world scenarios, the operating frequency of the power grid may differ from the preset base frequency.

[0072] In this embodiment, after the first frequency controller obtains the real-time operating frequency of the power grid, it can compare the real-time operating frequency with the preset base frequency to determine the degree of difference between the real-time operating frequency and the preset base frequency. That is, it determines the frequency deviation of the power grid. If the frequency deviation is large, the power consumption of the hydrogen production unit can be adjusted to make the power output of the electric hydrogen production station compatible with the power grid, and at the same time, to stabilize the operating frequency of the power grid.

[0073] S300, if the frequency deviation exceeds the first frequency deviation range, then based on the maximum frequency modulation capacity of the electrolytic cell, a corresponding power adjustment parameter is determined, wherein the maximum frequency modulation capacity of the electrolytic cell is associated with the type of the electrolytic cell.

[0074] For example, if the frequency deviation is within the first frequency deviation range, it indicates that the difference between the current real-time operating frequency and the preset base frequency is small, and the power consumption of the hydrogen production unit does not need to be adjusted. However, if the frequency deviation exceeds the first frequency deviation range, it indicates that the difference between the current real-time operating frequency and the preset base frequency is large, and the power consumption of the hydrogen production unit needs to be adjusted. Further, in the process of adjusting the power consumption of the hydrogen production unit, in one embodiment, the maximum frequency regulation capacity of the electrolyzer can be determined based on its maximum power capacity. Then, based on the maximum frequency regulation capacity of the electrolyzer, the corresponding power adjustment parameters are determined. The maximum power capacity of the electrolyzer is the maximum operating power at which the electrolyzer can be overloaded for a short period, and the maximum frequency regulation capacity of the electrolyzer characterizes the maximum degree of adjustment of the electrolyzer's power consumption.

[0075] Power adjustment parameters are used to regulate the power consumption of an electric hydrogen production plant. These parameters can be dynamically changed; for example, they can be a data model where the specific power adjustment value increases with the increase in the frequency deviation of the power grid. This improves the operating efficiency of the electric hydrogen production plant, maximizing its benefits, while also ensuring that the power consumption adjustment effect of the plant is compatible with the power grid.

[0076] S400, using the first frequency modulation controller and based on the power adjustment parameters, the power consumption of the corresponding electrolytic cell is adjusted within a second frequency deviation range, wherein the first frequency deviation range is adjacent to the second frequency deviation range.

[0077] For example, the second frequency deviation range is the range within which the power consumption of the electrolyzer in a hydrogen production unit is adjusted based on changes in the power frequency. There is a correlation between the frequency deviation of the power grid and the adjusted power consumption of the hydrogen production unit within the second frequency deviation range. The correlation between the frequency deviation of the power grid and the adjusted power consumption of the hydrogen production unit differs for different types of electrolyzers used in hydrogen production units.

[0078] In one embodiment, the first frequency deviation range is adjacent to the second frequency deviation range. If the second frequency deviation range comprises multiple sub-ranges, at least one sub-range is adjacent to the first frequency deviation range. This ensures that if the frequency deviation of the power supply grid is within the first frequency deviation range, no adjustment to the power consumption of the electrolyzer is required; however, if the frequency deviation of the power supply grid exceeds the first frequency deviation range, it will fall within the second frequency deviation range. In this case, the first frequency control controller adjusts the power consumption of the corresponding electrolyzer within the second frequency deviation range based on power adjustment parameters.

[0079] In one embodiment, the frequency deviation of the power grid can be dynamically changed. For example, the frequency deviation of the power grid changes as the real-time operating frequency of the power grid changes.

[0080] In one embodiment, within the second frequency deviation range, if the frequency deviation of the power grid increases, the power consumption of the hydrogen production unit increases; conversely, if the frequency deviation decreases, the power consumption of the hydrogen production unit decreases.

[0081] S500, upon receiving an automatic power generation control signal, adjusts the power consumption of at least one of the hydrogen production units via a second frequency modulation controller, wherein the automatic power generation control signal is generated based on the current state of the plurality of hydrogen production stations.

[0082] For example, after the first frequency regulation of the electric hydrogen production station, the power consumption of multiple hydrogen production units in the station is adjusted for the first time. In this embodiment, a second frequency regulation can also be performed on the current electric hydrogen production station through a local second frequency regulation controller based on the overall status information of each electric hydrogen production station in the power grid. The second frequency regulation is a second adjustment of the power consumption of multiple hydrogen production units in the electric hydrogen production station, thereby ensuring the stable operation of the current electric hydrogen production station, increasing control effectiveness and revenue, while also improving the operating efficiency of the entire power grid.

[0083] In one embodiment, the electro-hydrogen production station receives an Automatic Generation Control (AGC) signal, and a second frequency controller adjusts the power consumption of at least one hydrogen production unit, including adjusting the power consumption of each type of electrolyzer accordingly. The power grid dispatch center can control multiple electro-hydrogen production stations. The dispatch center can obtain the current status of all associated electro-hydrogen production stations, including the power consumption of each station, and then generate an AGC signal based on the current status of the multiple stations.

[0084] For example, the second frequency regulation of the hydrogen production plant is based on the second frequency regulation command (AGC signal) from the power grid dispatch center, which quickly changes the active power consumed by the hydrogen production plant to maintain the active power balance and frequency stability of the power grid.

[0085] Because the secondary frequency regulation command of a hybrid power generation hydrogen production station (which includes various types of electrolyzers) is relatively slow (typically 4 seconds), and the regulation speed characteristics of alkaline electrolyzers and proton exchange membrane electrolyzers are not significantly different, but their steady-state load ranges differ. Therefore, in the second frequency regulation process of this embodiment, corresponding commands can be sent to each type of electrolyzer to adjust its power consumption separately, thereby adapting to the operation of different hydrogen production units, ensuring overall operational stability and improving hydrogen production efficiency.

[0086] The control method of this application embodiment fully considers that there are different types of electrolyzers in the electric hydrogen production station. By adjusting the first and second frequency of the electric hydrogen production station, the power consumption of each hydrogen production unit in the electric hydrogen production station is flexibly adjusted, so that the electric hydrogen production station operates smoothly, improves hydrogen production efficiency and revenue, and also ensures the stable operation of the entire hydrogen production system and power grid.

[0087] In one embodiment of this application, if the frequency deviation exceeds a first frequency deviation range, then based on the maximum frequency modulation capacity of the electrolytic cell, a corresponding power adjustment parameter is determined, such as... Figure 2 and Figure 7 As shown, it includes:

[0088] S310, Based on the maximum power capacity of the electrolytic cell, determine the maximum frequency modulation capacity of the electrolytic cell.

[0089] For example, an electrolytic hydrogen production plant can operate under short-term overload conditions, such as operating at 120% of its rated power to reach its maximum power capacity. The maximum power capacity P of the electrolyzer is... rate ΔP is the maximum operating power that the electrolytic cell can withstand for a short period of overload, and the maximum frequency modulation capacity of the electrolytic cell. maxThis characterizes the maximum adjustable level of power consumption of the electrolyzer. The maximum frequency modulation capacity of the electrolyzer can be obtained based on its maximum power capacity and a preset calculation model. For example, the relationship between the maximum power capacity and the maximum frequency modulation capacity of the electrolyzer in the preset calculation model is: ΔP max =0.2*P rate .

[0090] S320, based on the maximum frequency modulation capacity of the electrolytic cell and the value in the second frequency deviation range, determine the dynamically changing power adjustment parameters.

[0091] For example, the first frequency deviation range and the second frequency deviation range have their own boundary values. For instance, the first frequency deviation range is [-f dead f dead ], then -f dead and f dead These are their boundary values. The second frequency deviation range is [-f]. max -f dead ] and [f dead f max ], then -f max -f dead f dead and f max These are all boundary values ​​of the second frequency deviation range. The values ​​within the second frequency deviation range fall within the numerical range [-f] determined based on these boundary values. max -f dead ] and [f dead f max Internal changes.

[0092] The power adjustment parameters can be dynamically adjusted within boundary values, provided they are less than the maximum frequency modulation capacity of the electrolytic cell. The maximum frequency modulation capacity varies depending on the type of electrolytic cell.

[0093] To address the different regulation characteristics of alkaline electrohydrogen generators (AWE) and proton exchange membrane electrohydrogen generators (PEM) in hybrid power generation hydrogen production plants, different droop coefficients k1 and k2 are designed and used, allowing the PEM electrohydrogen production plant with its faster regulation speed to handle a faster frequency response.

[0094] Combination Figure 7 Specifically, for alkaline electrolyzers (AWE's electrolyzers), within the second frequency deviation range of [-f]... max -f dead In the [section], the power adjustment parameters are in The value of the power adjustment parameter can vary between 0 and 1. For example, the value can increase as the value in the second frequency deviation range increases, or decrease as the value in the second frequency deviation range decreases, thereby reducing the power consumption of the electrolytic cell and thus offsetting the frequency deviation of the power grid. Within the second frequency deviation range [f dead f max In the [reference], the power adjustment parameter is between 0 and [the value is missing]. The values ​​can vary between these ranges, such as the power adjustment parameter, which can increase as the value in the second frequency deviation range increases.

[0095] For proton exchange membrane electrolyzers (PEM electrolyzers), in the second frequency deviation range [-f max -f dead In the [section], the power adjustment parameters are in The value of the power adjustment parameter can vary between 0 and 1. For example, the value can increase as the value in the second frequency deviation range increases, or decrease as the value in the second frequency deviation range decreases, thereby reducing the power consumption of the electrolytic cell and thus offsetting the frequency deviation of the power grid. Within the second frequency deviation range [f dead f max In the [reference], the power adjustment parameter is between 0 and [the value is missing]. The values ​​can vary between these ranges, such as the power adjustment parameter, which can increase as the value in the second frequency deviation range increases.

[0096] In one embodiment of this application, the second frequency deviation range includes multiple range intervals. The power consumption of the corresponding electrolytic cell is adjusted within the second frequency deviation range using the first frequency modulation controller and based on the power adjustment parameters. Figure 3 As shown, it includes the following steps:

[0097] S410, within each range interval of the second frequency deviation range, determine the correspondence between the frequency deviation of the power grid and the value of the power adjustment parameter.

[0098] S420, based on the frequency deviation of the power grid and the corresponding relationship, increase or decrease the power consumption of the electrolytic cell.

[0099] For example, within each range of the second frequency deviation range, there is a proportional relationship (i.e., a correspondence) between the frequency deviation of the power supply grid and the value of the power adjustment parameter. This proportional relationship can be that the value of the power adjustment parameter increases as the value within the second frequency deviation range increases, or that the value of the power adjustment parameter decreases as the value within the second frequency deviation range decreases. If the frequency deviation of the power supply grid exceeds the second frequency deviation range but is not within the first frequency deviation range, then the power adjustment parameter no longer needs to be adjusted.

[0100] In one embodiment of this application, the method further includes: if the frequency deviation exceeds the boundary value of the second frequency deviation range, then the power consumption of the electrolytic cell is no longer increased or decreased.

[0101] Specifically, if the frequency deviation exceeds the second frequency deviation range, it may be higher than the maximum boundary value of the second frequency deviation range or lower than the minimum boundary value of the second frequency deviation range. If the frequency deviation of the current power grid exceeds the boundary value of the second frequency deviation range but does not fall within the first frequency deviation range, the power consumption of the electrolyzer will no longer be increased or decreased in order to maintain the stable operation of the electrolyzer.

[0102] For example, the mathematical expression for this proportional relationship can be a direct proportional relationship. Combining this with the above embodiment, within a range of [f] in the second frequency deviation range... dead f max In the [reference], the power adjustment parameter is between 0 and [the value is missing]. The values ​​of the power adjustment parameters can vary, for example, the value of the power adjustment parameter can increase as the value in the second frequency deviation range increases, and the maximum value of the power adjustment parameter is... Once the second frequency deviation range is exceeded, the power adjustment parameters no longer need to be adjusted; they can still be adjusted as before. This is used to adjust the power consumption of the electrolytic cell.

[0103] In one embodiment of this application, the power consumption of at least one of the hydrogen production units is adjusted via a second frequency modulation controller, such as... Figure 4 As shown, it includes:

[0104] S510, The hydrogen production units are sorted based on their current power.

[0105] S520, if the uneven power of the electric hydrogen production station is less than the required power of the electric hydrogen production station, then based on the automatic power generation control signal, a corresponding sub-control signal is sent to each of the hydrogen production units to adjust the power consumption of each of the hydrogen production units respectively.

[0106] For example, an electric hydrogen production station has multiple hydrogen production units. At the same time, the current power of each hydrogen production unit may be different. In this embodiment, the hydrogen production units are sorted based on the specific value of the current power of each hydrogen production unit to generate a corresponding sequence. This sequence is then used to adjust the power consumption of at least one sequence segment of the hydrogen production units, where the current power consumption of the hydrogen production units in that sequence segment is similar.

[0107] The uneven power output P1 of an electric hydrogen production plant characterizes the degree of unevenness in the overall power output of the hydrogen production units. The power demand P of an electric hydrogen production plant...AGC This refers to the total power that needs to be changed to participate in the frequency regulation system. If the uneven power of the electric hydrogen production plant is less than the required power of the electric hydrogen production plant, it means that the power consumption of each hydrogen production unit in the electric hydrogen production plant can be adjusted. Therefore, based on the automatic power generation control signal and the real-time power of each hydrogen production unit, a corresponding sub-control signal is generated and sent to each hydrogen production unit to adjust the power consumption of each hydrogen production unit separately.

[0108] If the uneven power output of the hydrogen production plant exceeds its power demand, it means that adjusting the power consumption of all hydrogen production units is not feasible under current conditions. Instead, power consumption adjustments are made for hydrogen production units corresponding to a subset of sequences generated above.

[0109] In one embodiment of this application, the power consumption of at least one of the hydrogen production units is adjusted via a second frequency modulation controller, such as... Figure 5 As shown, it includes:

[0110] S530, based on the sequence information of the sorted hydrogen production units, the number of hydrogen production units of each type, and the real-time power of the hydrogen production units, determine the first hydrogen production unit that is in the first sequence position in the sequence information;

[0111] S540, based on the first sequence position and the number of hydrogen production units of each type, determine the adjustment range for the sorted hydrogen production units;

[0112] S550, send a corresponding power adjustment command to the hydrogen production unit that is within the adjustment range.

[0113] For example, during the second frequency modulation process, a power consumption adjustment algorithm is calculated for hydrogen production units corresponding to a portion of the sequence segments selected from the aforementioned generated sequence. This includes using a second frequency modulation controller to obtain sequence information containing the sequence numbers of all hydrogen production units, the number of hydrogen production units of each type, and the real-time power of each hydrogen production unit. Based on a preset calculation formula, the first hydrogen production unit at the first sequence position in the sequence information is determined. Specifically, this first hydrogen production unit in the aforementioned portion of the sequence segment may be the first hydrogen production unit represented in that portion of the sequence segment, thus determining the adjustment range of the hydrogen production units. Power adjustment commands are then sent to each hydrogen production unit corresponding to this adjustment range.

[0114] The following section provides a detailed explanation of the power consumption adjustment algorithm using examples, as shown in Table 1 below. Figure 8 ,in,

[0115] m: The number of alkaline electro-hydrogen generators (AWE) in the electro-hydrogen production station;

[0116] n: The number of proton exchange membrane electro-hydrogen generators (PEM) in the plant;

[0117] P max Rated power of the electro-hydrogen production station;

[0118] τ: The τth ancillary services market bidding period;

[0119] The bidding capacity for the τth bidding period;

[0120] P k,τ : Power of the k-th hydrogen production unit during the τ-th time period;

[0121] r t : The frequency-modulated AGC signal received at time t during the τ-th time period;

[0122] P AGC The required power of the hydrogen production plant, which is also the total power that needs to be changed to participate in the frequency regulation system;

[0123] P mp,t : The maximum / minimum power of a single hydrogen production unit at the current station at time t;

[0124] P1: The current average power output of the hydrogen production plant;

[0125] P k,t : Power of the k-th hydrogen production unit at time t;

[0126] P k,t+1 : Power of the k-th hydrogen production unit at time t+1;

[0127]

[0128]

[0129]

[0130] Table 1

[0131] In one embodiment of this application, determining the first hydrogen production unit at a first sequence position in the sequence information based on the sorted sequence information of the hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units includes:

[0132] Based on the sequence information of the sorted hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units, a first constraint condition is formed; wherein the first constraint condition may include multiple calculation formulas.

[0133] Under the first constraint, the first hydrogen production unit is determined. This first hydrogen production unit is located within a partial sequence segment after all hydrogen production units have been ordered; specifically, it may be the first hydrogen production unit represented in that partial sequence segment. The first constraint includes the following set of formulas:

[0134]

[0135] Where m is the number of alkaline hydrogen production units in the electric hydrogen production station; n is the number of proton exchange membrane hydrogen production units in the electric hydrogen production station; P is the first sequence position of the first hydrogen production unit in the sequence information; P k,t P represents the power output of the k-th hydrogen production unit during the t-th time period. AGC P represents the required power output of the aforementioned electro-hydrogen production station. p-1,t Let P be the power of the P-1th hydrogen production unit at time t; p,t Let P be the power of the hydrogen production unit at time t.

[0136] This application also provides an embodiment of an electro-hydrogen production station, such as... Figure 9 As shown, it includes:

[0137] Multiple hydrogen production units are used for hydrogen electrolysis, and each hydrogen production unit is equipped with a corresponding electrolysis cell.

[0138] A first frequency control controller is connected to each of the hydrogen production units. The first frequency control controller is configured to: acquire the real-time operating frequency of the power grid used to supply power to the electro-hydrogen production station; determine the frequency deviation of the power grid based on the real-time operating frequency and a preset base frequency; if the frequency deviation exceeds a first frequency deviation range, determine a corresponding power adjustment parameter based on the maximum frequency regulation capacity of the electrolyzer, wherein the maximum frequency regulation capacity of the electrolyzer is associated with the type of the electrolyzer; and adjust the power consumption of the corresponding electrolyzer within a second frequency deviation range based on the power adjustment parameter, wherein the first frequency deviation range is adjacent to the second frequency deviation range.

[0139] A second frequency control controller, connected to the first frequency control controller, is configured to adjust the power consumption of at least one of the hydrogen production units upon receiving an automatic power generation control signal, wherein the automatic power generation control signal is generated based on the current state of the plurality of hydrogen production power plants.

[0140] For example, an electrolytic hydrogen production plant can electrolyze hydrogen and connect to an external power grid, which then supplies power to the plant. The plant comprises multiple hydrogen production units, each including a rectifier and an electrolyzer. These electrolyzers, used for electrolyzing hydrogen, come in various types, each with different characteristics.

[0141] The electric hydrogen production station is equipped with a first frequency controller, which is connected to each hydrogen production unit, thereby enabling the adjustment of the power consumption of each hydrogen production unit.

[0142] The real-time operating frequency of the power grid is obtained through the first frequency controller. The real-time operating frequency is the frequency of the power supplied by the power grid to the current hydrogen production plant, which can be the real-time frequency of the electricity. Specifically, the real-time operating frequency can be obtained by the first frequency controller collecting data through acquisition equipment set on the external power grid, or by the first frequency controller directly collecting the data, analyzing the collected data, and determining the real-time operating frequency.

[0143] For current hydrogen production plants using electricity, a preset base frequency for the power grid is established. This preset base frequency can be pre-set using empirical data or other verification data. If the power grid supplies power to the hydrogen production plant at the preset base frequency, it will be compatible with the power consumption of the plant. In real-world scenarios, the operating frequency of the power grid may differ from the preset base frequency.

[0144] In this embodiment, after the first frequency controller obtains the real-time operating frequency of the power grid, it can compare the real-time operating frequency with the preset base frequency to determine the degree of difference between the real-time operating frequency and the preset base frequency. That is, it determines the frequency deviation of the power grid. If the frequency deviation is large, the power consumption of the hydrogen production unit can be adjusted to make the power output of the electric hydrogen production station compatible with the power grid, and at the same time, to stabilize the operating frequency of the power grid.

[0145] If the frequency deviation is within the first frequency deviation range, it indicates that the difference between the current real-time operating frequency and the preset base frequency is small, and no adjustment to the power consumption of the hydrogen production unit is required. However, if the frequency deviation exceeds the first frequency deviation range, it indicates that the difference between the current real-time operating frequency and the preset base frequency is large, requiring adjustment to the power consumption of the hydrogen production unit. Furthermore, in the process of adjusting the power consumption of the hydrogen production unit, in one embodiment, the maximum frequency regulation capacity of the electrolyzer can be determined based on its maximum power capacity. Then, based on the maximum frequency regulation capacity of the electrolyzer, the corresponding power adjustment parameters are determined. The maximum power capacity of the electrolyzer is the maximum operating power at which the electrolyzer can be overloaded for a short period, and the maximum frequency regulation capacity of the electrolyzer characterizes the maximum degree of adjustment of the electrolyzer's power consumption.

[0146] Power adjustment parameters are used to regulate the power consumption of an electric hydrogen production plant. These parameters can be dynamically changed; for example, they can be a data model where the specific power adjustment value increases with the increase in the frequency deviation of the power grid. This improves the operating efficiency of the electric hydrogen production plant, maximizing its benefits, while also ensuring that the power consumption adjustment effect of the plant is compatible with the power grid.

[0147] The second frequency deviation range is the range within which the power consumption of the electrolyzer in a hydrogen production unit is adjusted based on changes in the power frequency. Within this second frequency deviation range, there is a correlation between the frequency deviation of the power grid and the adjusted power consumption of the hydrogen production unit. However, this correlation differs for different types of hydrogen production units.

[0148] In one embodiment, the first frequency deviation range is adjacent to the second frequency deviation range. If the second frequency deviation range comprises multiple sub-ranges, at least one sub-range is adjacent to the first frequency deviation range. This ensures that if the frequency deviation of the power supply grid is within the first frequency deviation range, no adjustment to the power consumption of the electrolyzer is required; however, if the frequency deviation of the power supply grid exceeds the first frequency deviation range, it will fall within the second frequency deviation range. In this case, the first frequency control controller adjusts the power consumption of the corresponding electrolyzer within the second frequency deviation range based on power adjustment parameters.

[0149] In one embodiment, the frequency deviation of the power grid can be dynamically changed. For example, the frequency deviation of the power grid changes as the real-time operating frequency of the power grid changes.

[0150] In one embodiment, within the second frequency deviation range, if the frequency deviation of the power grid increases, the power consumption of the hydrogen production unit increases; conversely, if the frequency deviation decreases, the power consumption of the hydrogen production unit decreases.

[0151] After the initial frequency regulation of the electric hydrogen production station, the power consumption of multiple hydrogen production units within the station was adjusted for the first time. In this embodiment, a second frequency regulation can be performed on the current electric hydrogen production station via a local second frequency controller based on the overall status information of each electric hydrogen production station in the power grid. This second frequency regulation further adjusts the power consumption of multiple hydrogen production units within the electric hydrogen production station, thereby ensuring stable operation of the current electric hydrogen production station, increased control effectiveness and revenue, and improving the overall operating efficiency of the power grid.

[0152] In one embodiment, the electro-hydrogen production station receives an Automatic Generation Control (AGC) signal, and a second frequency controller adjusts the power consumption of at least one hydrogen production unit, including adjusting the power consumption of each type of electrolyzer accordingly. The power grid dispatch center can control multiple electro-hydrogen production stations. The dispatch center can obtain the current status of all associated electro-hydrogen production stations, including the power consumption of each station, and then generate an AGC signal based on the current status of the multiple stations.

[0153] For example, the second frequency regulation of the hydrogen production plant is based on the second frequency regulation command (AGC signal) from the power grid dispatch center, which quickly changes the active power consumed by the hydrogen production plant to maintain the active power balance and frequency stability of the power grid.

[0154] Because the secondary frequency regulation command of a hybrid power generation hydrogen production station (which includes various types of electrolyzers) is relatively slow (typically 4 seconds), and the regulation speed characteristics of alkaline electrolyzers and proton exchange membrane electrolyzers are not significantly different, but their steady-state load ranges differ. Therefore, in the second frequency regulation process of this embodiment, corresponding commands can be sent to each type of electrolyzer to adjust its power consumption separately, thereby adapting to the operation of different hydrogen production units, ensuring overall operational stability and improving hydrogen production efficiency.

[0155] In one embodiment of this application, the first frequency modulation controller is further configured as follows:

[0156] The maximum frequency modulation capacity of the electrolytic cell is determined based on its maximum power capacity.

[0157] The dynamically changing power adjustment parameters are determined based on the maximum frequency modulation capacity of the electrolytic cell and the values ​​within the second frequency deviation range.

[0158] For example, an electrolytic hydrogen production plant can operate under short-term overload conditions, such as operating at 120% of its rated power to reach its maximum power capacity. The maximum power capacity P of the electrolyzer is... rate ΔP is the maximum operating power that the electrolytic cell can withstand for a short period of overload, and the maximum frequency modulation capacity of the electrolytic cell. max This characterizes the maximum adjustable level of power consumption of the electrolyzer. The first frequency controller can obtain the maximum frequency regulation capacity of the electrolyzer based on the maximum power capacity of the electrolyzer and a preset calculation model. For example, the relationship between the maximum power capacity and the maximum frequency regulation capacity of the electrolyzer in the preset calculation model is: ΔP max =0.2*P rate .

[0159] The first frequency deviation range and the second frequency deviation range have their own boundary values. For example, the first frequency deviation range is [-f dead f dead ], then -f dead and f dead These are their boundary values. The second frequency deviation range is [-f]. max -f dead ] and [f dead f max ], then -f max -f dead f dead and f max These are all boundary values ​​of the second frequency deviation range. The values ​​within the second frequency deviation range fall within the numerical range [-f] determined based on these boundary values. max -f dead ] and [f dead f max Internal changes.

[0160] The power adjustment parameters can be dynamically adjusted within boundary values, provided they are less than the maximum frequency modulation capacity of the electrolytic cell. The maximum frequency modulation capacity varies depending on the type of electrolytic cell.

[0161] For example, for an alkaline electrolyzer, in the second frequency deviation range of [-f] max -f dead In the context of [the first frequency modulation controller], the power adjustment parameters are [in...]. The value of the power adjustment parameter can vary between 0 and 1. For example, the value can increase as the value in the second frequency deviation range increases, or decrease as the value in the second frequency deviation range decreases, thereby reducing the power consumption of the electrolytic cell and thus offsetting the frequency deviation of the power grid. Within the second frequency deviation range [f dead f max In the first frequency modulation controller, the power adjustment parameter is controlled between 0 and... The values ​​can vary between these ranges, such as the power adjustment parameter, which can increase as the value in the second frequency deviation range increases.

[0162] For proton exchange membrane electrolyzers, in the second frequency deviation range of [-f] max -f dead In the context of [the first frequency modulation controller], the power adjustment parameters are [in...]. The value of the power adjustment parameter can vary between 0 and 1. For example, the value can increase as the value in the second frequency deviation range increases, or decrease as the value in the second frequency deviation range decreases, thereby reducing the power consumption of the electrolytic cell and thus offsetting the frequency deviation of the power grid. Within the second frequency deviation range [f dead f maxIn the first frequency modulation controller, the power adjustment parameter is controlled between 0 and... The values ​​can vary between these ranges, such as the power adjustment parameter, which can increase as the value in the second frequency deviation range increases.

[0163] In one embodiment of this application, the first frequency modulation controller is further configured as follows:

[0164] Within each range of the second frequency deviation range, determine the correspondence between the frequency deviation of the power grid and the value of the power adjustment parameter;

[0165] Based on the frequency deviation of the power grid and the corresponding relationship, the power consumption of the electrolytic cell can be increased or decreased.

[0166] For example, within each range of the second frequency deviation range, there is a proportional relationship (i.e., a correspondence) between the frequency deviation of the power supply grid and the value of the power adjustment parameter. Based on this proportional relationship, the first frequency controller can control the value of the power adjustment parameter to increase as the value in the second frequency deviation range increases, or decrease as the value in the second frequency deviation range decreases. If the frequency deviation of the power supply grid exceeds the second frequency deviation range but is not within the first frequency deviation range, the first frequency controller may stop adjusting the power adjustment parameter.

[0167] In one embodiment of this application, the first frequency modulation controller is further configured as follows:

[0168] If the frequency deviation exceeds the boundary value of the second frequency deviation range, the power consumption of the electrolytic cell will no longer be increased or decreased.

[0169] In one embodiment of this application, the second frequency modulation controller is further configured as follows:

[0170] The hydrogen production units are sorted according to their current power.

[0171] If the uneven power of the electric hydrogen production station is less than the required power of the electric hydrogen production station, then based on the automatic power generation control signal, a corresponding sub-control signal is sent to each of the hydrogen production units to adjust the power consumption of each hydrogen production unit respectively.

[0172] In one embodiment of this application, the second frequency modulation controller is further configured as follows:

[0173] Based on the sorted sequence information of the hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units, the first hydrogen production unit in the first sequence position in the sequence information is determined.

[0174] Based on the first sequence position and the number of hydrogen production units of each type, the adjustment range for the sorted hydrogen production units is determined.

[0175] Send corresponding power adjustment commands to the hydrogen production units that are within the adjustment range.

[0176] In one embodiment of this application, the second frequency modulation controller is further configured as follows:

[0177] Based on the sequence information of the sorted hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units, a first constraint condition is formed.

[0178] The first hydrogen production unit is determined under a first constraint condition, wherein the first constraint condition includes the following set of formulas:

[0179]

[0180] Where m is the number of alkaline hydrogen production units in the electric hydrogen production station; n is the number of proton exchange membrane hydrogen production units in the electric hydrogen production station; P is the first sequence position of the first hydrogen production unit in the sequence information; P k,t P represents the power output of the k-th hydrogen production unit during the t-th time period. AGC P represents the required power output of the aforementioned electro-hydrogen production station. p-1,t P represents the power output of the (p-1)th hydrogen production unit at time t. p,t Let p be the power of the hydrogen production unit at time t.

[0181] This application also provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of the method described above.

[0182] This application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described above.

[0183] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the method described above.

[0184] Those skilled in the art will understand that embodiments of this application can be provided as methods, electronic devices, computer-readable storage media, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware. Furthermore, this application can take the form of a computer program product implemented on one or more computer-readable storage media containing computer-readable program code. When implemented in software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium.

[0185] The aforementioned processor can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The aforementioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor, etc.

[0186] The aforementioned memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, like read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0187] The aforementioned readable storage medium may be a magnetic disk, optical disk, DVD, USB, read-only memory (ROM) or random access memory (RAM), etc. This application does not limit the specific form of storage medium.

[0188] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A control method for an electro-hydrogen production station, characterized in that, The method is applied to an electrolytic hydrogen production station, which includes a first frequency controller and multiple hydrogen production units respectively connected to the first frequency controller. Each hydrogen production unit is equipped with a corresponding electrolyzer. The real-time operating frequency of the power grid used to supply power to the electro-hydrogen production station is obtained through the first frequency modulation controller. Based on the real-time operating frequency and the preset base frequency, the frequency deviation of the power supply grid is determined; If the frequency deviation exceeds the first frequency deviation range, then the corresponding power adjustment parameters are determined based on the maximum frequency modulation capacity of the electrolytic cell, wherein the maximum frequency modulation capacity of the electrolytic cell is associated with the type of the electrolytic cell; Using the first frequency modulation controller and based on the power adjustment parameters, the power consumption of the corresponding electrolytic cell is adjusted within the second frequency deviation range, wherein the first frequency deviation range is adjacent to the second frequency deviation range; Upon receiving an automatic power generation control signal, the power consumption of at least one of the hydrogen production units is adjusted via a second frequency controller, wherein the automatic power generation control signal is generated based on the current state of the plurality of hydrogen production power plants.

2. The control method for an electro-hydrogen production station according to claim 1, characterized in that, If the frequency deviation exceeds the first frequency deviation range, then based on the maximum frequency modulation capacity of the electrolytic cell, the corresponding power adjustment parameters are determined, including: The maximum frequency modulation capacity of the electrolytic cell is determined based on its maximum power capacity. The dynamically changing power adjustment parameters are determined based on the maximum frequency modulation capacity of the electrolytic cell and the values ​​within the second frequency deviation range.

3. The control method for an electro-hydrogen production station according to claim 1, characterized in that, The second frequency deviation range includes multiple range intervals. The step of adjusting the power consumption of the corresponding electrolytic cell within the second frequency deviation range using the first frequency modulation controller and based on the power adjustment parameters includes: Within each range of the second frequency deviation range, determine the correspondence between the frequency deviation of the power grid and the value of the power adjustment parameter; Based on the frequency deviation of the power grid and the corresponding relationship, the power consumption of the electrolytic cell can be increased or decreased.

4. The control method for an electro-hydrogen production station according to claim 1, characterized in that, The method further includes: If the frequency deviation exceeds the boundary value of the second frequency deviation range, the power consumption of the electrolytic cell will no longer be increased or decreased.

5. The control method for an electro-hydrogen production station according to claim 1, characterized in that, The adjustment of the power consumption of at least one of the hydrogen production units via a second frequency controller includes: The hydrogen production units are sorted according to their current power. If the uneven power of the electric hydrogen production station is less than the required power of the electric hydrogen production station, then based on the automatic power generation control signal, a corresponding sub-control signal is sent to each of the hydrogen production units to adjust the power consumption of each hydrogen production unit respectively.

6. The control method for an electro-hydrogen production station according to claim 5, characterized in that, The adjustment of the power consumption of at least one of the hydrogen production units via a second frequency controller includes: Based on the sorted sequence information of the hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units, the first hydrogen production unit in the first sequence position in the sequence information is determined. Based on the first sequence position and the number of hydrogen production units of each type, the adjustment range for the sorted hydrogen production units is determined. Send corresponding power adjustment commands to the hydrogen production units that are within the adjustment range.

7. The control method for an electro-hydrogen production station according to claim 6, characterized in that, The step of determining the first hydrogen production unit at the first sequence position in the sequence information based on the sorted sequence information of the hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units includes: Based on the sequence information of the sorted hydrogen production units, the number of each type of hydrogen production unit, and the real-time power of the hydrogen production units, a first constraint condition is formed. The first hydrogen production unit is determined under a first constraint condition, wherein the first constraint condition includes the following set of formulas: in, m The number of alkaline hydrogen production units in the aforementioned electric hydrogen production station; n P represents the number of proton exchange membrane hydrogen production units in the electro-hydrogen production station; P represents the first sequence position of the first hydrogen production unit in the sequence information; P k,t P represents the power output of the k-th hydrogen production unit during the t-th time period. AGC P represents the required power output of the aforementioned electro-hydrogen production station. p-1,t P represents the power output of the (p-1)th hydrogen production unit at time t. p,t Let p be the power of the hydrogen production unit at time t.

8. An electro-hydrogen production station, characterized in that, include: Multiple hydrogen production units are used for hydrogen electrolysis, and each hydrogen production unit is equipped with a corresponding electrolysis cell. A first frequency control controller is connected to each of the hydrogen production units. The first frequency control controller is configured to: acquire the real-time operating frequency of the power grid used to supply power to the electro-hydrogen production station; determine the frequency deviation of the power grid based on the real-time operating frequency and a preset base frequency; if the frequency deviation exceeds a first frequency deviation range, determine a corresponding power adjustment parameter based on the maximum frequency regulation capacity of the electrolyzer, wherein the maximum frequency regulation capacity of the electrolyzer is associated with the type of the electrolyzer; and adjust the power consumption of the corresponding electrolyzer within a second frequency deviation range based on the power adjustment parameter, wherein the first frequency deviation range is adjacent to the second frequency deviation range. A second frequency control controller, connected to the first frequency control controller, is configured to adjust the power consumption of at least one of the hydrogen production units upon receiving an automatic power generation control signal, wherein the automatic power generation control signal is generated based on the current state of the plurality of hydrogen production power plants.

9. The electro-hydrogen production station according to claim 8, characterized in that, The first frequency modulation controller is further configured as follows: The maximum frequency modulation capacity of the electrolytic cell is determined based on its maximum power capacity. The dynamically changing power adjustment parameters are determined based on the maximum frequency modulation capacity of the electrolytic cell and the values ​​within the second frequency deviation range.

10. The electro-hydrogen production station according to claim 8, characterized in that, The first frequency modulation controller is further configured as follows: Within each range of the second frequency deviation range, determine the correspondence between the frequency deviation of the power grid and the value of the power adjustment parameter; Based on the frequency deviation of the power grid and the corresponding relationship, the power consumption of the electrolytic cell can be increased or decreased.

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