Electrolytic cell array collaborative control method, device, electronic device and storage medium

Abstract

The present application provides a method, device, electronic device and storage medium for coordinated control of an electrolyzer array, which relates to the technical field of hydrogen production from new energy. The method for coordinated control of an electrolyzer array includes: obtaining group operation data of an electrolyzer group, a total power instruction P of an electrolyzer array, and a total power instruction P of an electrolyzer array. sum and individual operating data of each electrolytic cell in the electrolytic cell group; based on the group operating data and P sum , determine the threshold value of adding or subtracting the electrolytic cell group to determine the adding or subtracting group method and the corresponding target electrolytic cell group; based on the group operation data and P sum , determine the total operating power difference to determine the group power distribution value P of the target electrolytic cell group i Based on P i The application achieves flexible tracking of the hydrogen production side under the condition of rapid fluctuations in power generation, while avoiding frequent start-up and shutdown of the electrolyzer.

Description

Technical Field

[0001] The present application relates to the field of new energy hydrogen production technology, for example, to a method, device, electronic equipment and storage medium for coordinated control of an electrolyzer array. Background Art

[0002] The generation of new energy sources such as wind energy and solar energy is intermittent and unstable. The water electrolysis hydrogen production technology can use the electricity generated by these new energy sources to produce hydrogen. This method of hydrogen production has the advantages of being green, environmentally friendly, and having zero carbon emissions. It is the most promising method of hydrogen production under the background of "dual carbon". However, the power generation of new energy is greatly affected by the natural environment, and is random and intermittent. In order to achieve a dynamic balance between source, grid, load and storage in the new energy hydrogen production system, it is necessary to adopt a multi-electrolyzer joint operation strategy to allocate the power of each electrolyzer and ensure flexible tracking of the hydrogen production side in the case of rapid fluctuations in power generation. With the gradual implementation of large-scale new energy hydrogen production projects, the hydrogen production side process has gradually adopted a design scheme of multiple groups of electrolyzers. Multiple electrolyzers are used in each group to control the structure of a set of separation and purification equipment.

[0003] In the related art, the multi-electrolyzer joint operation strategy used fails to take into account the group operation of the electrolyzers. The existing operation strategy simply calculates the number of electrolyzers in operation, hot standby, and cold standby when allocating power, and the electrolyzer states are rotated according to a fixed cycle when allocating power. Therefore, when multiple electrolyzers are jointly operated to produce hydrogen, the frequent start and stop of some electrolyzers affects the service life of the electrolyzers. In addition, for electrolyzers, there are rate limits for increasing and decreasing loads. The related art fails to fully utilize the adjustment capabilities of multiple electrolyzers, resulting in a slow response speed for power instructions. At the same time, after the power value of a single electrolyzer is allocated, it is directly output without considering the intermediate process of increasing and decreasing the load of the electrolyzer, resulting in large fluctuations in the total operating power of the electrolyzer during this change process, which is not conducive to the overall balance of the hydrogen production system. Summary of the Invention

[0004] This application aims to provide a method, device, electronic device, and storage medium for coordinated control of an electrolyzer array. These methods can take into account the grouped operation of electrolyzers, set corresponding operating power settings for each electrolyzer, and rationally rotate the electrolyzer states to avoid frequent starts and stops of the electrolyzers. Furthermore, these methods can fully utilize the regulation capabilities of multiple electrolyzers, quickly respond to power commands, avoid large fluctuations in the total operating power of the electrolyzers during the process of increasing or decreasing the load on the electrolyzers, and improve the overall balance of the hydrogen production system.

[0005] According to one aspect of the present application, a coordinated control method for an electrolytic cell array is proposed, comprising: obtaining group operation data of the electrolytic cell group, a total power instruction P of the electrolytic cell array, and sum and individual operating data of each electrolytic cell in the electrolytic cell group; based on the group operating data and Psum , determine the threshold value of adding or subtracting the electrolytic cell group to determine the adding or subtracting group method and the corresponding target electrolytic cell group; based on the group operation data and P sum , determine the total operating power difference to determine the group power distribution value P of the target electrolytic cell group i Based on P i and individual operation data to determine the single power allocation value of each electrolyzer, so as to control each electrolyzer to operate according to the corresponding single power allocation value.

[0006] According to some embodiments, the aforementioned group operation data includes the number of electrolytic cell groups in operation, the power lower limit of each electrolytic cell group, and the overload power of each electrolytic cell group; the addition and subtraction group thresholds include the subtraction group threshold and the addition group threshold; wherein, based on the group operation data and P sum , determine the threshold value of adding or subtracting the electrolytic cell group to determine the adding or subtracting group method and the corresponding target electrolytic cell group, including: sum When the number of electrolytic cell groups is less than the group reduction threshold, the number of electrolytic cell groups is reduced to determine the first target electrolytic cell group, and the P of the electrolytic cell group to be closed is i Set to 0 to obtain the group operation data of the first target electrolytic cell group and perform group power allocation; or, sum When the number of electrolytic cell groups is greater than the threshold value, the number of electrolytic cell groups is increased to determine the second target electrolytic cell group, and the P of the electrolytic cell group to be opened is increased. i Set as the lowest operating load of the newly opened electrolytic cell group to obtain the group operating data of the second target electrolytic cell group and perform group power allocation; or, sum When the value is greater than or equal to the group reduction threshold and less than or equal to the group addition threshold, the number of electrolytic cell groups is determined as the third target number of electrolytic cell groups, and group power allocation is performed.

[0007] According to some embodiments, the method further includes setting group numbers for the target electrolytic cell groups in sequence; initializing the planned opening group number and the planned closing group number to 1 respectively; setting the number of loop determinations to N, judging the working state of the target electrolytic cell group having the same group number as the planned opening group number, where N is the total number of electrolytic cell groups; exiting the loop when the working state is the first state of not running, not having a fault, and being in a maintenance state; or, when the working state is not the first state, adding 1 to the planned opening group number and entering the next loop until the working state is the first state, determining the planned opening group number at this time to be the target opening group number, so as to determine the group number of the newly opened electrolytic cell group; when the planned opening group number appears during the loop, When the number is greater than N, the planned closing group number is subtracted by N before the status judgment is performed; the number of loop judgments is set to N, and the working status of the target electrolytic cell group whose group number is the same as the planned closing group number is judged. When the working status is the second state of running, no fault, and under maintenance, the loop is jumped out; or, when it is not in the second state, the planned closing group number is increased by 1 and the next loop is entered until the working status is the second state, and the planned closing group number at this time is determined to be the target closing group number to determine the group number of the electrolytic cell group to be shut down; when the planned closing group number is greater than N during the loop process, the planned closing group number is subtracted by N before the status judgment is performed.

[0008] According to some embodiments, the further step includes setting the logical number of the newly opened electrolytic cell group to a preset logical number; and setting a logical number for each electrolytic cell group of the target electrolytic cell group in reverse order of the group number based on the newly opened electrolytic cell group.

[0009] According to some embodiments, the aforementioned group operation data includes the total operating power of the target electrolytic cell group; wherein, based on the group operation data and P sum , determine the total operating power difference to determine the group power distribution value P of the target electrolytic cell group i , including: Comparison P sum and the total operating power to determine the total power difference; according to the total power difference, determine the operating load state of each target electrolytic cell group; based on the operating load state and group operating data, determine the corresponding group power allocation value P i .

[0010] According to some embodiments, the operating load state includes increasing load; the group operating data also includes the number of electrolytic cells in each target electrolytic cell group, the individual operating power of each electrolytic cell in each target electrolytic cell group, and the total full load power of all target electrolytic cell groups; wherein, based on the operating load state and the group operating data, the corresponding group power allocation value P is determined. i, including: when the total power difference is less than the difference between the total operating power and the total full-load power, for each target electrolytic cell group, according to the number of electrolytic cells and the individual operating power of the electrolytic cells, determining the adjustable power value that does not cause the number of electrolytic cells to change in each target electrolytic cell group, so as to determine whether the number of electrolytic cells in operation must be changed at present, so as to obtain the corresponding power allocation method for group power allocation, and obtain the corresponding group power allocation value P i Or, when the total power difference is greater than or equal to the difference between the total operating power and the total full load power, poll the target electrolytic cell group in descending order of logical numbers, and sequentially change the corresponding P i Set to overload power until the total power difference is distributed.

[0011] According to some embodiments, the aforementioned operating load state includes load shedding; wherein, based on the operating load state and the group operating data, the corresponding group power allocation value P is determined. i , including: when the total power difference is less than the adjustable power value, polling the target electrolytic cell group in ascending order of logical numbers; when the target electrolytic cell group is in operation, i Subtract the corresponding adjustable power value and distribute the difference to the corresponding target electrolytic cell group until the total power difference is distributed; or, when the total power difference is greater than or equal to the sum of the adjustable power values, poll the target electrolytic cell group in ascending order of logical numbers; when the target electrolytic cell group is in operation, the corresponding P i Set to the corresponding power lower limit until the total power difference is distributed.

[0012] According to some embodiments, the aforementioned individual operation data includes the number of electrolytic cells in operation, the overload power of each electrolytic cell, and the power lower limit of each electrolytic cell; wherein, based on P i and individual operating data, determine the power allocation value of each electrolyzer, and allocate operating power according to the power allocation value, including: i In the third state where the power factor is greater than the product of the number of electrolytic cells in operation and the overload power of the electrolytic cell, the number of electrolytic cells in operation is increased to determine the first target electrolytic cell; P i Evenly distribute to each first target electrolytic cell, and determine the power maintenance of each first target electrolytic cell to obtain the power distribution value of each electrolytic cell; or, in P i In the fourth state where the number of electrolytic cells in operation is less than the product of the lower power limit of the electrolytic cell, the number of electrolytic cells started is reduced to determine the second target electrolytic cell; P i Evenly distribute the power to each second target electrolytic cell to obtain the power distribution value of each second target electrolytic cell; or, when the state is not the third state or the fourth state, determine the number of electrolytic cells as the number of the third target electrolytic cells; Pi The power is evenly distributed to each third target electrolytic cell to obtain a power distribution value of each third target electrolytic cell.

[0013] According to some embodiments, P i The power distribution value of each first target electrolytic cell is obtained after the power maintenance judgment is performed on each first target electrolytic cell, including: for each first target electrolytic cell, when the power distributed to the first target electrolytic cell is greater than or equal to the individual operating power of the first target electrolytic cell at the current moment, the distributed power value is determined as the power distribution value of the first target electrolytic cell; or, when the power distributed to the first target electrolytic cell is less than the individual operating power of the first target electrolytic cell, the power distribution value of the operating electrolytic cell is maintained as the individual operating power of the electrolytic cell; when the power of the newly opened electrolytic cell increases and the power of the corresponding target electrolytic cell group is equal to P i When the difference between the power consumption and the power consumption is less than a preset threshold, the average power value is determined as the power distribution value of the operating electrolyzer.

[0014] According to one aspect of the present application, a coordinated control device for an electrolytic cell array is provided, comprising:

[0015] Information acquisition module, used to obtain the group operation data of the electrolytic cell group and the total power instruction P of the electrolytic cell array sum and individual operating data of each electrolyzer within the electrolyzer group;

[0016] Addition and subtraction group mode determination module is used to determine the group operation data and P sum , determine the threshold value of adding or subtracting the electrolytic cell group to determine the adding or subtracting group method and the corresponding target electrolytic cell group;

[0017] Group power allocation module is used to allocate power based on group operating data and P sum , determine the total operating power difference to determine the group power distribution value P of the target electrolytic cell group i ;

[0018] Single power distribution module for P-based i and individual operating data to determine the single power allocation value of each electrolyzer, so as to control the operating power of each electrolyzer according to the corresponding single power allocation value.

[0019] Optionally, the group operation data includes the number of electrolytic cell groups in operation, the power lower limit of each electrolytic cell group, and the overload power of each electrolytic cell group; the group addition and subtraction thresholds include a group subtraction threshold and a group addition threshold;

[0020] The addition and subtraction group method determination module is specifically used to:

[0021] In P sumWhen the number of electrolytic cell groups is less than the group reduction threshold, the number of electrolytic cell groups is reduced to determine the first target electrolytic cell group, and the P of the electrolytic cell group to be closed is i Set to 0 to obtain the group operation data of the first target electrolytic cell group and perform group power allocation; or, sum When the number of electrolytic cell groups is greater than the threshold value, the number of electrolytic cell groups is increased to determine the second target electrolytic cell group, and the P of the electrolytic cell group to be opened is increased. i Set as the lowest operating load of the newly opened electrolytic cell group to obtain the group operating data of the second target electrolytic cell group and perform group power allocation; or, sum When the value is greater than or equal to the group reduction threshold and less than or equal to the group addition threshold, the number of electrolytic cell groups is determined as the third target number of electrolytic cell groups, and group power allocation is performed.

[0022] Optionally, the electrolytic cell array collaborative control device further includes a group number setting module, which is used to:

[0023] Set group numbers for the target electrolytic cell groups in sequence;

[0024] Initialize the plan opening group number and plan closing group number to 1 respectively;

[0025] Set the number of loop determinations to N, and determine the working state of the target electrolytic cell group whose group number is the same as the planned opening group number, where N is the total number of electrolytic cell groups; when the working state is the first state of not running, not faulty, or under maintenance, jump out of the loop; or, when it is not in the first state, increase the planned opening group number by 1 and enter the next loop until the working state is the first state, determine the planned opening group number at this time as the target opening group number, and determine the group number of the newly opened electrolytic cell group; if the planned opening group number is greater than N during the loop, subtract N from the planned closing group number before performing the state determination;

[0026] The number of loop determinations is set to N, and the working status of the target electrolytic cell group whose group number is the same as the planned shutdown group number is determined. When the working status is the second state of being in operation, not faulty, or under maintenance, the loop is exited; or, when it is not in the second state, the planned shutdown group number is increased by 1, and the next loop is entered until the working status is the second state. The planned shutdown group number at this time is determined to be the target shutdown group number to determine the group number of the electrolytic cell group to be shut down; if the planned shutdown group number is greater than N during the loop process, the planned shutdown group number is subtracted by N before the status determination is performed again.

[0027] Optionally, the electrolytic cell array collaborative control device further includes a logic number setting module, which is used to:

[0028] Set the logic number of the newly opened electrolytic cell group to the preset logic number;

[0029] Taking the newly opened electrolytic cell group as a reference, set a logical number for each electrolytic cell group of the target electrolytic cell group in reverse order of the group number.

[0030] Optionally, the group operating data includes the total operating power of the target electrolyzer group;

[0031] The group power distribution module is specifically used for:

[0032] Comparison P sum and the total operating power to determine the total power difference;

[0033] Determine the operating load state of the target electrolytic cell group based on the total power difference;

[0034] Determine the corresponding group power allocation value P based on the operating load status and group operating data i .

[0035] Optionally, the aforementioned operating load state includes increasing load; the group operating data further includes the number of electrolytic cells in each target electrolytic cell group, the individual operating power of each electrolytic cell in each target electrolytic cell group, and the total full load power of all target electrolytic cell groups;

[0036] The group power allocation module determines the corresponding group power allocation value P based on the operating load status and group operating data. i When, specifically used for:

[0037] When the total power difference is less than the difference between the total operating power and the total full-load power, for each target electrolytic cell group, according to the number of electrolytic cells and the individual operating power of the electrolytic cells, the adjustable power value that does not cause the number of electrolytic cells to change in each target electrolytic cell group is determined to determine whether the number of electrolytic cells in operation must be changed at present, so as to obtain the corresponding power allocation method for group power allocation and obtain the corresponding group power allocation value P i ;or,

[0038] When the total power difference is greater than or equal to the difference between the total operating power and the total full load power, the target electrolytic cell group is polled in descending order of logical numbers, and the corresponding P i Set to overload power until the total power difference is distributed.

[0039] Optionally, the operating load state includes load shedding;

[0040] The group power allocation module determines the corresponding group power allocation value P based on the operating load status and group operating data. i When, specifically used for:

[0041] When the total power difference is less than the adjustable power value, the target electrolytic cell group is polled in ascending order according to the logic number; when the target electrolytic cell group is in operation, the corresponding P i Subtract the corresponding adjustable power value and distribute the difference to the corresponding target electrolytic cell group until the total power difference is distributed; or,

[0042] When the total power difference is greater than or equal to the sum of the adjustable power values, the target electrolytic cell group is polled in ascending order according to the logic number; when the target electrolytic cell group is in operation, the corresponding P i Set to the corresponding power lower limit until the total power difference is distributed.

[0043] Optionally, the individual operation data includes the number of electrolytic cells in operation, the overload power of each electrolytic cell, and the power lower limit of each electrolytic cell;

[0044] Among them, a single power distribution module is specifically used for:

[0045] In P i In the third state where the power factor is greater than the product of the number of electrolytic cells in operation and the overload power of the electrolytic cell, the number of electrolytic cells in operation is increased to determine the first target electrolytic cell; P i Evenly distribute to each first target electrolytic cell, and determine the power maintenance of each first target electrolytic cell to obtain the power distribution value of each electrolytic cell; or, in P i In the fourth state where the number of electrolytic cells in operation is less than the product of the lower power limit of the electrolytic cell, the number of electrolytic cells started is reduced to determine the second target electrolytic cell; P i Evenly distribute the power to each second target electrolytic cell to obtain a power distribution value for each second target electrolytic cell; or

[0046] When the state is not the third state or the fourth state, the number of electrolytic cells is determined to be the number of the third target electrolytic cells; i The power is evenly distributed to each third target electrolytic cell to obtain a power distribution value of each third target electrolytic cell.

[0047] Optionally, a single power distribution module can i The power distribution value of each electrolytic cell is obtained after the power maintenance judgment is performed on each first target electrolytic cell, specifically used for:

[0048] For each first target electrolytic cell, when the power evenly distributed to the first target electrolytic cell is greater than or equal to the individual operating power of the first target electrolytic cell, the evenly distributed power value is determined as the power allocation value of the first target electrolytic cell; or,

[0049] When the power allocated to the first target electrolytic cell is less than the individual operating power of the first target electrolytic cell, the power allocation value of the operating electrolytic cell is maintained at the individual operating power of the electrolytic cell at the current moment; when the power of the newly opened electrolytic cell increases, and the power of the corresponding target electrolytic cell group is equal to P i When the difference between the power consumption and the power consumption is less than a preset threshold, the average power value is determined as the power distribution value of the operating electrolyzer.

[0050] According to an exemplary embodiment, by acquiring the group operation data of the electrolytic cell group and the total power instruction P of the electrolytic cell array in real time sum As well as the individual operating data of each electrolyzer, power can be dynamically allocated according to the current status and demand. This ensures that the electrolyzer array can quickly respond to changes in power demand, improving the response speed and flexibility of the hydrogen production system. In addition, by adding and subtracting groups and determining the corresponding target electrolyzer groups, the number of operating electrolyzer groups can be adjusted as needed to further achieve dynamic power balance. Based on group operating data and P sum The determined total operating power difference can be used to calculate the group power distribution value P of the target electrolytic cell group. i Furthermore, by combining the individual operating data of each electrolyzer, the power allocation value for each electrolyzer can be accurately determined. This allows for coordinated operation of the electrolyzer group, ensuring flexible tracking of the hydrogen production side in the event of rapid fluctuations in power generation. By flexibly adjusting the number of operating electrolyzer groups and power allocation, ensuring that each electrolyzer receives the appropriate power allocation, and avoiding the frequent start-up and shutdown of some electrolyzers during the hydrogen production process, the safety of the hydrogen production system can be improved.

[0051] According to one aspect of the present application, an electronic device is proposed, which includes: one or more processors; a storage device 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 implement the method as described above.

[0052] According to one aspect of the present application, a computer-readable medium is provided, on which a computer program is stored. When the program is executed by a processor, the method described above is implemented.

[0053] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without exceeding the scope of protection required by this application.

[0055] Figure 1 A schematic structural diagram of a hydrogen production system according to an exemplary embodiment is shown;

[0056] Figure 2 A flow chart showing a method for coordinated control of an electrolytic cell array according to an exemplary embodiment is shown;

[0057] Figure 3 A flow chart illustrating a power optimization allocation strategy according to an exemplary embodiment is shown;

[0058] Figure 4 A flow chart illustrating a power allocation strategy within a group according to an exemplary embodiment is shown;

[0059] Figure 5 A flow chart illustrating another electrolytic cell array coordinated control method according to an exemplary embodiment;

[0060] Figure 6 A block diagram illustrating a coordinated control device for an electrolytic cell array according to an exemplary embodiment is shown;

[0061] Figure 7 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0063] With the gradual implementation of large-scale new energy hydrogen production projects, the hydrogen production process has gradually adopted a design scheme of multiple groups of electrolyzers. In each group, multiple electrolyzers are used to match a set of separation and purification equipment. The existing multi-electrolyzer joint operation strategy fails to take into account the group operation of the electrolyzers, and its versatility for different hydrogen production processes is poor. In addition, when allocating power, the existing operation strategy simply calculates the number of electrolyzers in operation, hot standby, and cold standby states, and rotates the states according to a fixed cycle, which easily causes some electrolyzers to be in a state of frequent start and stop, affecting the service life of the electrolyzers. Finally, for the electrolyzers, there are rate limits for increasing and decreasing the load. The relevant technology fails to fully utilize the adjustment capabilities of multiple electrolyzers, resulting in a slow response speed of the power instruction; at the same time, after the power value of a single electrolyzer is allocated, it is directly output without considering the intermediate process of increasing and decreasing the load of the electrolyzer, resulting in a large range of fluctuations in the total operating power of the electrolyzer during this change process, which is not conducive to the overall balance of the hydrogen production system.

[0064] Figure 1 The structure diagram of a hydrogen production system according to an exemplary embodiment is shown. The hydrogen production system can be provided with multiple electrolytic cell groups, each electrolytic cell group includes several electrolytic cells, and each electrolytic cell group corresponds to a set of separation and purification devices. Figure 1 In the hydrogen production system, an electrolyzer group is shown, which includes four electrolyzers, and the electrolyzers are connected to a power supply for operation. The electrolyzer group corresponds to a set of separation and purification devices that may include an oxygen separation tank, an oxygen scrubber, an oxygen liquid separator, an alkaline liquid circulation pump, a hydrogen separation tank, a hydrogen scrubber, a hydrogen liquid separator, and a purification system. In some application scenarios, the hydrogen production system may include multiple groups Figure 1 The structure shown.

[0065] For specific implementation methods, please refer to the following embodiments.

[0066] Figure 2 FIG. 1 is a flow chart showing a method for cooperative control of an electrolytic cell array according to an exemplary embodiment. The method of this embodiment can be applied to a cooperative control device. Figure 2 As shown, the method includes:

[0067] S201, obtain the group operation data of the electrolytic cell group and the total power instruction P of the electrolytic cell array sum and individual operating data of each electrolyzer in the electrolyzer group.

[0068] A hydrogen production system can include multiple electrolyzer groups. For each electrolyzer group, group operating data may include: the power lower limit of a single electrolyzer group (each electrolyzer group), the full load power of a single electrolyzer group, the overload power of a single electrolyzer group, the number of electrolyzers in a single electrolyzer group, the number of electrolyzer groups in operation, faults and maintenance status of a single electrolyzer group, the individual operating power of a single electrolyzer group, the total operating power of all electrolyzer groups, the difference between the total operating power and the total full load power of the electrolyzer groups in operation, and the adjustable power value within a single electrolyzer group that does not change the number of electrolyzers. This group operating data can be sent to the coordinated control device by the device generating the data. Individual operating data may include the number of electrolyzers in operation in the electrolyzer group, the individual operating power of a single electrolyzer (each electrolyzer), the power lower limit of a single electrolyzer, and the overload power of a single electrolyzer. This individual operating data can be sent to the coordinated control device by the device generating this data.

[0069] In some implementations, the criterion for determining whether the electrolytic cell group is in operation may be: the alkali solution circulation pump is running, and the operating power of at least one electrolytic cell is not less than 50% of the rated power.

[0070] Each electrolyzer group can contain several electrolyzers, which may be in operation, in a closed state, or in a faulty state. When a group contains only one electrolyzer, this corresponds to the structure of one electrolyzer corresponding to one set of separation and purification devices in the related art. Therefore, the present application is applicable to different application scenarios and has strong versatility, adapting to different hydrogen production process forms.

[0071] In some implementations, the overload power and full load power of a single electrolyzer group may not be sent directly to the cooperative control device, but may be calculated based on other parameters.

[0072] In the scenario of hydrogen production from new energy, in order to solve the power balance problem in the coupling of electricity and hydrogen, an energy management system can be used to optimize the system's economic scheduling and coordinate control, generate a new energy power generation plan and a total power instruction on the hydrogen production side, and achieve the effect of "source-load interaction". The total power instruction here can be used as the total power instruction P of the electrolyzer array. sum , which can be used to characterize the sum of the operating powers of all electrolyzers in all electrolyzer groups.

[0073] S202, based on the group operation data and P sum , determine the addition and subtraction group thresholds of the electrolytic cell group to determine the addition and subtraction group method and the corresponding target electrolytic cell group.

[0074] The addition and subtraction group thresholds can be used to determine whether the currently operating electrolyzer groups can meet the total power command requirements. The addition and subtraction group method can be used to indicate which electrolyzer groups need to be newly opened or closed under what circumstances. The target electrolyzer group can be used to represent the current electrolyzer group and the newly opened electrolyzer group, or the final electrolyzer group after subtracting the closed electrolyzer group.

[0075] According to an example embodiment, the system may perform the following operations based on the group operation data and P sum , match the corresponding addition and subtraction group threshold, and then determine the addition and subtraction group method and the corresponding target electrolytic cell group.

[0076] S203, based on the group operation data and P sum , determine the total operating power difference to determine the group power distribution value P of the target electrolytic cell group i .

[0077] The total operating power difference can be used to represent the total operating power of the target electrolytic cell group and P sum The difference between them can correspond to different group power distribution situations. The group power distribution value of the target electrolytic cell group is obtained as P i If there are N target electrolytic cell groups, the corresponding group power allocation values ​​can be P1, P2, P3...P N.

[0078] S204, based on P i and individual operating data to determine the single power allocation value of each electrolyzer, so as to control each electrolyzer to allocate operating power according to the corresponding single power allocation value.

[0079] The single power allocation value can be used to indicate the operating power value initially allocated to each electrolyzer.

[0080] According to an example embodiment, a selected intra-group power allocation strategy may be implemented to allocate power to P i The individual operating data is calculated to obtain the power allocation value of each electrolytic cell in each electrolytic cell group. The power allocation value can then be allocated to the corresponding electrolytic cell for operation.

[0081] By obtaining the group operation data of the electrolytic cell group and the total power instruction P of the electrolytic cell array in real time sum As well as the individual operating data of each electrolyzer, power can be dynamically allocated according to the current status and demand. This ensures that the electrolyzer array can quickly respond to changes in power demand, improving the response speed and flexibility of the hydrogen production system. In addition, by adding and subtracting groups and determining the corresponding target electrolyzer groups, the number of operating electrolyzer groups can be adjusted as needed to further achieve power balance. Based on the group operating data and P sum The determined total operating power difference can be used to calculate the group power distribution value P of the target electrolytic cell group. i Furthermore, by combining the individual operating data of each electrolyzer, the power allocation value of each electrolyzer can be accurately determined. The overall coordinated operation of the electrolyzer group can be achieved, ensuring flexible tracking on the hydrogen production side in the case of rapid fluctuations in power generation. Flexibly adjusting the operating number and power allocation of the electrolyzer group to ensure that each electrolyzer receives appropriate power allocation can avoid frequent start-up and shutdown of some electrolyzers during the hydrogen production process, improve the stability of the hydrogen production system, and thus improve hydrogen production efficiency.

[0082] According to some embodiments, S201-S204 may be executed periodically, for example, every fifteen minutes. In some implementations, the operating data of the electrolyzer may be monitored in real time. If a power shortage occurs between execution cycles, the calculation may be immediately triggered, and S201-S204 may be re-executed.

[0083] According to some embodiments, the group operation data includes the number of electrolytic cell groups in operation, the power lower limit of each electrolytic cell group, and the overload power of each electrolytic cell group; the addition and subtraction group thresholds include the subtraction group threshold and the addition group threshold. sumAnd compare some parameters in the group operation data, and determine the addition and subtraction group method and the corresponding target electrolytic cell group based on different comparison results. sum When the number of electrolytic cell groups is less than the group reduction threshold, the number of electrolytic cell groups is reduced to determine the first target electrolytic cell group, and the P of the electrolytic cell group to be closed is i Set to 0 to obtain the group operation data of the first target electrolytic cell group and perform group power allocation; or, sum When the number of electrolytic cell groups is greater than the threshold value, the number of electrolytic cell groups is increased to determine the second target electrolytic cell group, and the P of the electrolytic cell group to be opened is increased. i Set as the lowest operating load of the newly opened electrolytic cell group to obtain the group operating data of the second target electrolytic cell group and perform group power allocation; or, sum When the value is greater than or equal to the group reduction threshold and less than or equal to the group addition threshold, the number of electrolytic cell groups is determined as the third target number of electrolytic cell groups, and group power allocation is performed.

[0084] The product of the number of electrolytic cell groups in operation and the power lower limit can be set as the group reduction threshold, and the product of the number of electrolytic cell groups in operation and the overload power can be set as the group addition threshold.

[0085] The first target electrolytic cell group can be used to represent the entire electrolytic cell group after the number of electrolytic cell groups is reduced; the second target electrolytic cell group can be used to represent the entire electrolytic cell group after the number of electrolytic cell groups is increased; and the third target electrolytic cell group can be used to represent the number of electrolytic cell groups in operation at the current moment.

[0086] According to an example embodiment, when P sum When the power is less than the product of the number of electrolytic cell groups in operation and the power lower limit, the system reduces the total number of operating groups and allocates the power of the closed electrolytic cell group to the value P. i Set to 0. Then, the system re-acquires the group operation data of the target electrolytic cell group and performs group power allocation to ensure that the remaining electrolytic cell groups can reasonably distribute the total power instruction. For example, at the current moment, the number of electrolytic cell groups in operation is 5. After reducing the number of electrolytic cell groups, the first target electrolytic cell group is 4. The P of the electrolytic cell group to be shut down is i Set to 0.

[0087] When P sum When the power is greater than the product of the number of electrolytic cell groups in operation and the overload power, the system increases the total number of operating groups and allocates the power of the newly opened electrolytic cell group to P. i Then, the system re-acquires the group operating data of the electrolytic cell group and distributes the group power to fully utilize the newly added electrolytic cell group.

[0088] When P sumWhen the total power instruction is greater than or equal to the product of the number of electrolytic cell groups in operation and the power lower limit, and less than or equal to the product of the number of electrolytic cell groups and the overload power, the system determines that the total power instruction is within the normal operating range of the electrolytic cell groups in operation. In this case, the system directly performs group power allocation and reasonably allocates P according to the current operating data and total power instruction. sum Distributed to each electrolyzer group to achieve power balance and optimization.

[0089] According to some embodiments, group numbers can be set for the electrolytic cell groups to determine which electrolytic cell groups to open or close when a new electrolytic cell group needs to be opened or closed. Specifically, group numbers are set for the target electrolytic cell groups in sequence; the planned opening group number and the planned closing group number are initialized to 1 respectively; the number of loop judgments is set to N, and the working state of the target electrolytic cell group with the same group number as the planned opening group number is judged, and N is the total number of electrolytic cell groups; when the working state is the first state of not running, not having a fault, and being under maintenance, the loop is jumped out; or, when it is not in the first state, the planned opening group number is increased by 1 and the next loop is entered until the working state is the first state, and the planned opening group number at this time is determined to be the target opening group number to determine the group number of the newly opened electrolytic cell group; if the planned opening group number is greater than N, the planned closing group number is subtracted by N before the status judgment is performed; the number of loop judgments is set to N, and the working status of the target electrolytic cell group with the same group number as the planned closing group number is judged. When the working status is the second state of running, no fault, and under maintenance, the loop is jumped out; or, when it is not in the second state, the planned closing group number is increased by 1 and the next loop is entered until the working status is the second state, and the planned closing group number at this time is determined to be the target closing group number to determine the group number of the electrolytic cell group to be shut down; when the planned closing group number is greater than N during the loop process, the planned closing group number is subtracted by N before the status judgment is performed.

[0090] In some implementations, a unique group number can be assigned to each electrolytic cell group. These group numbers are ordered according to certain rules, such as by the order in which the electrolytic cell groups are installed or by their power levels. This group numbering allows the collaborative control device to clearly identify and distinguish each electrolytic cell group. During initialization of the collaborative control device, it sets a planned on-group number and a planned off-group number, both of which are initially set to 1. These two numbers are used to indicate which electrolytic cell group should be operated when the electrolytic cell group needs to be turned on or off.

[0091] Next, the collaborative control device can begin a cyclic determination process, which is set to repeat N times, where N is the total number of electrolytic cell groups. The process can be terminated if a condition is met midway. In each cycle, the collaborative control device first determines the operating status of the electrolytic cell group with the same group number as the planned opening.

[0092] If the electrolytic cell group with the same group number as the planned opening group is not in operation, has no faults, or is under maintenance, then it can be considered that the electrolytic cell group can be opened and the loop is exited. At this time, the group number of the electrolytic cell group is the group number of the electrolytic cell group that needs to be newly opened.

[0093] If the cell group with the same number as the scheduled opening group does not meet the opening conditions (i.e., is in operation, has a fault, or is undergoing maintenance), the coordinated control device will increase the scheduled opening group number by 1 and then perform the status judgment again. This process will continue in a loop until a cell group that can be opened is found. If the scheduled opening group number is greater than N during the loop, the scheduled closing group number is subtracted by N and the status judgment is performed again.

[0094] This approach takes into account the recycling of electrolytic cell groups and ensures that all electrolytic cell groups can be used fairly.

[0095] The process of determining the target closing group number is similar to the process of determining the target opening group number and will not be repeated here.

[0096] According to an exemplary embodiment, after the target opening group number is determined, the electrolytic cell group corresponding to the number is the electrolytic cell group to be opened (a newly opened electrolytic cell group).

[0097] By assigning group numbers to electrolytic cell groups, precise identification and management of these groups is possible. Each electrolytic cell group has a unique group number, enabling precise location of the target group when it is needed to be turned on or off, preventing misoperation or improper operation. Furthermore, the group number-based electrolytic cell group control method simplifies system operation complexity. By setting scheduled on and off group numbers and integrating a cyclic determination process, the electrolytic cell group that meets the on or off conditions can be automatically found, eliminating the need for manual individual determination. This not only reduces operational difficulty and labor costs, but also improves operational accuracy and efficiency. It also enables the recycling of electrolytic cell groups, ensuring that all groups are fairly utilized and preventing some groups from being idle or overused for extended periods. The system can rotate electrolytic cell groups based on actual needs, balancing operating time between groups and avoiding the frequent starting and stopping of some cells caused by fixed-cycle rotation.

[0098] According to some embodiments, the logical number of the electrolytic cell group can be further set based on the group number to facilitate the subsequent Psum Specifically, the logic number of the newly opened electrolytic cell group is set to the preset logic number; based on the newly opened electrolytic cell group, a logic number is set for each target electrolytic cell group in the reverse order of the group number.

[0099] In some implementations, the logical number of a newly opened electrolytic cell group can be set to the largest logical number. It should be noted that the logical number and size of the group number are the same. When the collaborative control device determines that a new electrolytic cell group needs to be opened, it sets the logical number of the newly opened electrolytic cell group to the largest logical number among all existing electrolytic cell groups. This ensures that the logical number of the newly opened electrolytic cell group is unique and greater than the logical numbers of all other electrolytic cell groups.

[0100] Next, taking the newly opened electrolytic cell group as the benchmark, the cooperative control device resets the logical number for each electrolytic cell group in the reverse order of the group number. This reverse order setting method is helpful in the subsequent P sum During the allocation process, priority is sorted according to the order of logical numbers, so that power can be allocated more reasonably.

[0101] According to an example embodiment, the logical number may be determined in the following manner:

[0102] Assume that there are 10 groups of electrolytic cells, numbered 1-10. If the electrolytic cell group numbered 5 is a newly opened group, the logical number of this group is 10, the logical number of group number 4 is 9, ..., the logical number of group number 1 is 6, the logical number of group number 10 is 5, and so on. The logical number of group number 6 is 1.

[0103] By presetting logical numbers for newly opened electrolyzer groups, each one follows the same numbering convention, standardizing and aligning the logical numbering of the hydrogen production system. This helps simplify system management and improves maintainability and scalability. By assigning logical numbers to each electrolyzer group in the target electrolyzer group in reverse order of group numbering, using the newly opened electrolyzer group as a benchmark, the logical numbers of the electrolyzer groups correspond to their actual position or order in the system.

[0104] According to some embodiments, the group operation data includes the total operating power of the target electrolytic cell group. The total power difference can be calculated first, and based on the total power difference, it can be determined whether the current load is increased or reduced, and then the group power allocation is performed respectively. Specifically, by comparing P sum and the total operating power to determine the total power difference; according to the total power difference, determine the operating load state of each target electrolytic cell group; based on the operating load state and group operating data, determine the corresponding group power allocation value P i .

[0105] The total power difference can be used to reflect P sum The difference between the total power and the operating power can quickly determine the direction of change of the current hydrogen production load. If the total power difference is positive, that is, P sum If the total power difference is greater than the total operating power, it can be judged that the current moment is in the load-increasing state. On the contrary, if the total power difference is negative, that is, P sum If it is less than the total operating power, it can be determined that the current moment is in a reduced load state.

[0106] By calculating the total power command P sum The total power difference between the total power of the current target electrolyzer group and the total power of the current target electrolyzer group can quickly and accurately determine the changing trend of the current hydrogen production load. This real-time and accurate load judgment mechanism can quickly respond to load changes, and the power change value is shared by multiple groups of electrolyzers, which can increase the response speed of power instructions. Since the power requirements of the electrolyzer array may change with time and operating conditions, by comparing P in real time sum The system dynamically adapts to these changes by adjusting the total operating power and the operating load of each electrolyzer group. This dynamic adaptability enables the system to maintain efficient operation in different operating scenarios, improving its flexibility and responsiveness. Through precise power allocation and dynamic adjustment, the system can better maintain the safe operation of the electrolyzer array.

[0107] According to some embodiments, the group operation data further includes the number of electrolytic cells in each target electrolytic cell group, the individual operating power of each electrolytic cell in each target electrolytic cell group, and the total full-load power of all target electrolytic cell groups. When the operating load state is increasing load, when the total power difference is less than the difference between the total operating power and the total full-load power, for each target electrolytic cell group, based on the number of electrolytic cells and the individual operating power of the electrolytic cells, an adjustable power value that does not cause a change in the number of electrolytic cells in each target electrolytic cell group is determined to determine whether a change in the number of electrolytic cell operations is necessary, thereby obtaining a corresponding power allocation method for group power allocation and obtaining a corresponding group power allocation value P. i Or, when the total power difference is greater than or equal to the difference between the total operating power and the total full load power, poll the target electrolytic cell group in descending order of logical numbers, and sequentially change the corresponding P i Set to overload power until the total power difference is distributed.

[0108] In some implementations, the calculation method of the adjustable power value without changing the number of electrolytic cells in each electrolytic cell group can be as follows:

[0109] Assume that there are 4 electrolytic cells in the electrolytic cell group, 3 of which are currently in operation. The current power of the electrolytic cell group, that is, the total power of the individual electrolytic cells in the electrolytic cell group in operation, is P. nowThe adjustable amount of power increase without changing the number of electrolytic cells is: 3×rated power of a single electrolytic cell×1.1-P now , the adjustable amount of power reduction is: P now -3×rated power of a single electrolytic cell×0.5.

[0110] According to an exemplary embodiment, the coordinated control device calculates, for each electrolytic cell group, an adjustable power value within the group that does not change the number of electrolytic cells. This calculation, based on the number of electrolytic cells and their individual operating power, aims to determine the maximum power range that can be adjusted for each electrolytic cell group without changing the number of operating electrolytic cells.

[0111] In some implementations, when the total power difference is less than the difference between the total operating power and the total full-load power, the cooperative control device can determine the adjustable power value within each target electrolytic cell group that does not cause a change in the number of electrolytic cells, and further determine whether a change in the number of electrolytic cells in operation is necessary. In this case, the corresponding group power allocation method can be executed, and when the total power difference is greater than or equal to the difference between the total operating power and the total full-load power, the electrolytic cell groups can be polled in descending order of logical numbers, and the corresponding power instructions P can be sequentially assigned. i At the same time, the cooperative control device can continue to poll and distribute power until the total power difference is completely distributed.

[0112] During the execution of the entire load-increasing distribution method, the collaborative control device will monitor the system's operating status and power output in real time to ensure the accuracy and effectiveness of power distribution.

[0113] According to some embodiments, when the operating load state is load reduction, the target electrolytic cell group can be polled in ascending order of logical numbers when the total power difference is less than the adjustable power value; when the target electrolytic cell group is in the operating state, the corresponding P i Subtract the corresponding adjustable power value and distribute the difference to the corresponding target electrolytic cell group until the total power difference is distributed; or, when the total power difference is greater than or equal to the sum of the adjustable power values, poll the target electrolytic cell group in ascending order of logical numbers; when the target electrolytic cell group is in operation, the corresponding P i Set to the corresponding power lower limit until the total power difference is distributed.

[0114] By comparing the total power difference with the sum of the adjustable power values ​​of all electrolytic cell groups. If the total power difference is less than the sum of the adjustable power values, it means that the load reduction demand can be met by adjusting the power output of the existing electrolytic cells without shutting down any electrolytic cells. In this case, the electrolytic cell groups can be polled in ascending order of logical numbers. For the electrolytic cell groups in operation, their corresponding power instructions P can be adjusted in turn.i The corresponding adjustable power value is subtracted and the difference is redistributed to other electrolyzer groups until the total power difference is fully distributed.

[0115] However, if the total power difference is greater than or equal to the sum of the adjustable power values, it means that the load reduction demand cannot be met by simply adjusting the power output of the existing electrolyzers, and some electrolyzers must be shut down to reduce the total power. In this case, the electrolyzer groups can be polled in ascending order of logical numbers. For the electrolyzer groups in operation, their corresponding power instructions P can be sequentially i Set it to the corresponding power lower limit, that is, shut down some electrolytic cells or reduce their operating power until the total power difference is distributed.

[0116] During the execution of the group power distribution method corresponding to the entire load reduction, the collaborative control device can monitor the system's operating status and power output in real time to ensure the accuracy and stability of power distribution.

[0117] According to some embodiments, the individual operation data includes the number of electrolytic cells in operation, the overload power of each electrolytic cell, and the power lower limit of each electrolytic cell. It is possible to further process the power allocation value of each cell. Specifically, in P i In the third state where the power factor is greater than the product of the number of electrolytic cells in operation and the overload power of the electrolytic cell, the number of electrolytic cells in operation is increased to determine the first target electrolytic cell; P i Evenly distribute to each first target electrolytic cell, and determine the power maintenance of each first target electrolytic cell to obtain the power distribution value of each electrolytic cell; or, in P i In the fourth state where the number of electrolytic cells in operation is less than the product of the lower power limit of the electrolytic cell, the number of electrolytic cells started is reduced to determine the second target electrolytic cell; P i Evenly distribute the power to each second target electrolytic cell to obtain the power distribution value of each second target electrolytic cell; or, when the state is not the third state or the fourth state, determine the number of electrolytic cells as the number of the third target electrolytic cells; P i The power is evenly distributed to each third target electrolytic cell to obtain a power distribution value of each third target electrolytic cell.

[0118] The first target electrolytic cell, the second target electrolytic cell, and the third target electrolytic cell can each be used to represent the entire electrolytic cell under different conditions. For example, the first target electrolytic cell can be used to represent the total electrolytic cell after the number of activated electrolytic cells is increased based on the current electrolytic cell in the third state where Pi is greater than the product of the number of electrolytic cells and the overload power of the electrolytic cell.

[0119] In some implementations, the cooperative control device may adopt different power distribution methods according to the size of Pi and the current operating state of the electrolytic cell group.

[0120] When P i When the value is greater than the product of the number of electrolytic cells in operation and the overload power of the electrolytic cell, it means that the current electrolytic cell group cannot meet the power demand and the number of electrolytic cells to be started needs to be increased. In this case, the cooperative control device will calculate the number of electrolytic cells that need to be increased and set P i After the power distribution is completed, the cooperative control device will perform a power maintenance operation to obtain the final power distribution value.

[0121] On the contrary, when P i When the power of the electrolytic cell group is less than the product of the number of electrolytic cells in operation and the power lower limit of the electrolytic cell, it means that the current electrolytic cell group has excess power and the number of electrolytic cells in operation needs to be reduced. The collaborative control device will calculate the number of electrolytic cells that need to be shut down and convert the remaining P i The power is evenly distributed to each electrolyzer that is still in operation. In this way, each electrolyzer can get appropriate power distribution to ensure efficient operation of the system.

[0122] If P i The size of P is between the above two cases, that is, there is no need to increase or decrease the number of electrolytic cells on the line. The cooperative control device will directly i In this case, each electrolyzer will receive equal power distribution, maintaining stable operation of the system.

[0123] In other implementations, the coordinated control device can fully consider the electrolyzer's overload power and power limit during the power allocation process within the entire group, ensuring the rationality and safety of power allocation. Furthermore, the coordinated control device dynamically adjusts the power allocation strategy based on actual hydrogen production demand and system operating status, achieving flexible control and optimization of hydrogen production output.

[0124] By further optimizing intra-group allocation, the hydrogen production system achieves more refined and flexible power control. Specific power allocation plans can be developed based on individual operating data, allowing the hydrogen production system to dynamically adjust the number of electrolyzers in operation and power allocation under different operating conditions, ensuring full power utilization and efficient conversion. This enables flexible tracking of the hydrogen production side even in the presence of rapid fluctuations in power generation.

[0125] According to some embodiments, when it is necessary to further optimize the allocation method within the group, a power maintenance determination can be performed on each first target electrolytic cell. Specifically, for each first target electrolytic cell, when the power evenly distributed to the first target electrolytic cell is greater than or equal to the individual operating power of the first target electrolytic cell at the current moment, the evenly distributed power value is determined as the power allocation value of the first target electrolytic cell; or, when the power evenly distributed to the first target electrolytic cell is less than the individual operating power of the first target electrolytic cell, the power allocation value of the operating electrolytic cell is maintained as the individual operating power of the electrolytic cell; when the power of the newly opened electrolytic cell increases, and the power of the corresponding target electrolytic cell group is equal to P i When the difference between the power consumption and the power consumption is less than a preset threshold, the average power value is determined as the power distribution value of the operating electrolyzer.

[0126] Power maintenance judgment can be used as a key link to ensure the stable operation of the new energy hydrogen production system. It determines the power distribution value of the electrolyzer based on the comparison results of the power distributed to each electrolyzer and the individual operating power of the electrolyzer, as well as the power increase of the newly opened electrolyzer and the preset threshold of the total power difference. The individual operating power at the current moment can be used to represent the current operating power of the electrolyzer. Maintaining the power distribution value of the operating electrolyzer to the individual operating power of the electrolyzer at the current moment can mean maintaining the current operating power of the electrolyzer unchanged. The preset threshold can be 0-1%, that is, the power of the single electrolyzer group is close to P i hour.

[0127] In some implementations, when the power distributed to each electrolyzer exceeds the individual operating power of the electrolyzer, it indicates that the hydrogen production system needs to increase the power output of the electrolyzer to meet the power command requirement. In this case, the coordinated control device can directly determine the power distribution value of the electrolyzer as the power distribution value of the electrolyzer.

[0128] When the power distributed to each electrolytic cell is less than the individual operating power of the electrolytic cell, the cooperative control device can maintain the power distribution value of the operating electrolytic cell at the individual operating power of the electrolytic cell instead of further reducing its power output. In addition, when the power of the newly opened electrolytic cell begins to rise, and the power of the corresponding electrolytic cell group is equal to the power instruction P i When the difference is less than the preset threshold, the power distribution value of the running electrolyzer is adjusted to avoid large fluctuations in the total operating power of the electrolyzer caused by the intermediate process of increasing and decreasing the load.

[0129] In other implementations, the coordinated control device can monitor the electrolyzer's power output and the system's hydrogen production requirements in real time throughout the power maintenance determination process, dynamically adjusting the power allocation based on actual conditions. Furthermore, the coordinated control device also considers the electrolyzer's performance and operating status to ensure the rationality and safety of power allocation.

[0130] By executing the power maintenance determination process, the rate limit of the electrolytic cell load increase or decrease can be fully considered, avoiding large fluctuations in the total operating power of the electrolytic cell caused by the intermediate process of load increase or decrease.

[0131] According to some embodiments, the number of electrolytic cells in each electrolytic cell group can be multiplied by the rated power to determine the full load power of each electrolytic cell group; the full load power can be multiplied by the overload coefficient to determine the overload power of each electrolytic cell group; and the sum of the full load powers of all electrolytic cell groups is the total full load power of the electrolytic cell group.

[0132] In some implementations, the coordinated control device may perform the step of calculating the full-load power of each electrolyzer group. This process may include multiplying the number of electrolyzers in each electrolyzer group by the rated power of each electrolyzer. For example, if the electrolyzer group has 10 electrolyzers, each with a rated power of 5 MW, then the full-load power of the electrolyzer group is 10 times 5 MW, which equals 50 MW.

[0133] After determining the full load power of the electrolyzer group, the collaborative control device can further calculate the overload power. In order to take into account the possible overload of the hydrogen production system and ensure the safety of the system, the full load power is usually multiplied by an overload factor. In this embodiment, this overload factor can be set to 1.1. By multiplying the full load power by the overload factor, the collaborative control device can calculate the overload power of the electrolyzer group. Taking the previous example, the overload power of the electrolyzer group is 50MW multiplied by 1.1, which is equal to 55MW.

[0134] If there are 6 electrolyzer groups, the total full load power of all electrolyzer groups is 6 times 50MW, which is equal to 300MW.

[0135] After completing these calculations, the coordinated control device uses these parameters in subsequent group power allocation and optimized power allocation within the group. This allows the hydrogen production system to rationally allocate and adjust the power output of the electrolyzers based on actual hydrogen production needs and equipment performance, ensuring safe system operation and efficient hydrogen production.

[0136] According to some embodiments, for a single electrolytic cell, its safe operating range is generally 50%-110% of the rated power, so the lower power limit of a single electrolytic cell group may be 50% of the rated power of the individual electrolytic cell.

[0137] Figure 3 A flow chart illustrating a power optimization allocation strategy according to an exemplary embodiment includes:

[0138] Comparison P sum and the total operating power of all electrolytic cell groups, and calculate the difference ΔP between the two sum, when the load is increased:

[0139] If ΔP sum Less than the difference between the total operating power and the total full-load power of the electrolytic cell group in operation, when ΔP sum If the total power increase is greater than the sum of the adjustable amounts that do not cause a change in the number of electrolytic cells in a single electrolytic cell group, it means that a change in the number of electrolytic cells must occur. Then, poll from the electrolytic cell group with the largest logical number to the electrolytic cell group with the smallest logical number, and change the corresponding P i Set to the full load power of the single electrolyzer group until ΔP sum Allocation is complete. When ΔP sum If the power is less than the sum of the adjustable power increases that do not produce changes in the number of electrolytic cells in the single electrolytic cell group, the power is increased in sequence from the electrolytic cell group with the largest logical number to the electrolytic cell group with the smallest logical number, until ΔP sum Allocation completed.

[0140] If ΔP sum If the difference between the total operating power and the total full-load power of the electrolytic cell groups in operation is greater than the total operating power, poll the electrolytic cell groups with the largest logical number to the electrolytic cell groups with the smallest logical number, and turn the corresponding P i Set to the overload power of the single electrolytic cell group until ΔP sum Allocation completed.

[0141] When the load is reduced:

[0142] If ΔP sum If the total power value is less than the sum of the adjustable power values ​​that does not change the number of electrolytic cells in the single electrolytic cell group, poll from the electrolytic cell group with the smallest logical number to the electrolytic cell group with the largest logical number. If the electrolytic cells in this group are in operation, the corresponding P i Subtract the adjustable power value that does not produce a change in the number of electrolytic cells in the electrolytic cell group until ΔP sum Allocation completed.

[0143] If ΔP sum If the number of electrolytic cells in the group is greater than the sum of the adjustable power values ​​that does not change in the number of electrolytic cells, poll from the electrolytic cell group with the smallest logical number to the electrolytic cell group with the largest logical number. If the electrolytic cells in this group are in operation, the corresponding P i Set as the power lower limit of the single electrolytic cell group until ΔP sum Allocation completed.

[0144] The group power optimization allocation strategy can avoid frequent start and stop of electrolytic cells, and the power change value is shared by multiple groups of electrolytic cells, which increases the response speed of power instructions.

[0145] The current operating data of the electrolytic cells in the group are: the number of electrolytic cells in operation, the individual operating power of a single electrolytic cell, the power lower limit of a single electrolytic cell, and the overload power of a single electrolytic cell.

[0146] Figure 4 A flow chart illustrating a power allocation strategy within a group according to an exemplary embodiment is shown, including:

[0147] If P i If the number of electrolytic cells in operation is greater than the product of the overload power of a single electrolytic cell, increase the number of electrolytic cells in operation and set P i The power is evenly distributed to each electrolyzer, and the power allocation value of each electrolyzer is obtained after executing the power locking logic;

[0148] If P i The power consumption of a single electrolytic cell is less than the product of the number of electrolytic cells in operation and the lower limit of the power consumption of a single electrolytic cell. i Divide it equally to each electrolytic cell to obtain the power distribution value of a single electrolytic cell;

[0149] In the remaining cases, directly change P i Divide it equally to each electrolytic cell to obtain the power distribution value of a single electrolytic cell.

[0150] The power lockout logic is:

[0151] If the power allocated to each electrolytic cell is greater than the individual operating power of a single electrolytic cell, the average power value is directly used as the power allocation value of the single electrolytic cell;

[0152] If the power allocated to each electrolyzer is less than the individual operating power of a single electrolyzer, the power distribution value of the running electrolyzer is maintained at the individual operating power of the single electrolyzer until the power of the newly started electrolyzer increases and the power of the single electrolyzer group approaches P i When , the average power value is used as the power distribution value of the running electrolyzer.

[0153] The power locking logic fully considers the rate limit of the electrolytic cell load increase and decrease to avoid large fluctuations in the total operating power of the electrolytic cell caused by the intermediate process of load increase and decrease.

[0154] Figure 5 FIG2 is a flow chart showing another electrolytic cell array coordinated control method according to an exemplary embodiment. Figure 5 , can monitor the operating status of the electrolyzer in real time. When a fault occurs, the total operating power of all electrolyzer groups will be affected by the P sum The deviation is too large, and a power shortage occurs. At this time, S502-S506 are re-executed to obtain the new electrolytic cell operating power distribution value in time to meet P sum requirements.

[0155] The following describes an apparatus embodiment of the present application, which can be used to perform the method embodiment of the present application. For details not disclosed in the apparatus embodiment of the present application, reference can be made to the method embodiment of the present application.

[0156] Figure 6 FIG. 1 is a block diagram of a coordinated control device for an electrolytic cell array according to an exemplary embodiment. Figure 6 As shown, the electrolytic cell array collaborative control device 600 includes an information acquisition module 601, an addition and subtraction group mode determination module 602, a group power allocation module 603 and a single unit power allocation module 604.

[0157] Information acquisition module 601 is used to obtain the group operation data of the electrolytic cell group and the total power instruction P of the electrolytic cell array. sum and individual operating data of each electrolyzer within the electrolyzer group;

[0158] The addition and subtraction group mode determination module 602 is used to determine the group operation data and P sum , determine the threshold value of adding or subtracting the electrolytic cell group to determine the adding or subtracting group method and the corresponding target electrolytic cell group;

[0159] The group power allocation module 603 is used to allocate power to the group based on the group operation data and P sum , determine the total operating power difference to determine the group power distribution value P of the target electrolytic cell group i ;

[0160] Single power distribution module 604, used for i and individual operation data to determine the single power allocation value of each electrolyzer, so as to control each electrolyzer to operate according to the corresponding single power allocation value.

[0161] Optionally, the group operation data includes the number of electrolytic cell groups in operation, the power lower limit of each electrolytic cell group, and the overload power of each electrolytic cell group; the group addition and subtraction thresholds include a group subtraction threshold and a group addition threshold;

[0162] The addition and subtraction group mode determination module 602 is specifically configured to:

[0163] In P sum When the number of electrolytic cell groups is less than the group reduction threshold, the number of electrolytic cell groups is reduced to determine the first target electrolytic cell group, and the P of the electrolytic cell group to be closed is i Set to 0 to obtain the group operation data of the first target electrolytic cell group and perform group power allocation; or, sum When the number of electrolytic cell groups is greater than the threshold value, the number of electrolytic cell groups is increased to determine the second target electrolytic cell group, and the P of the electrolytic cell group to be opened is increased. i Set as the lowest operating load of the newly opened electrolytic cell group to obtain the group operating data of the second target electrolytic cell group and perform group power allocation; or, sumWhen the value is greater than or equal to the group reduction threshold and less than or equal to the group addition threshold, the number of electrolytic cell groups is determined as the third target number of electrolytic cell groups, and group power allocation is performed.

[0164] Optionally, the electrolytic cell array collaborative control device 600 further includes a group number setting module 605, which is used to:

[0165] Set group numbers for the target electrolytic cell groups in sequence;

[0166] Initialize the plan opening group number and plan closing group number to 1 respectively;

[0167] Set the number of loop determinations to N, and determine the working state of the target electrolytic cell group whose group number is the same as the planned opening group number, where N is the total number of electrolytic cell groups; when the working state is the first state of not running, not faulty, or under maintenance, jump out of the loop; or, when it is not in the first state, increase the planned opening group number by 1 and enter the next loop until the working state is the first state, determine the planned opening group number at this time as the target opening group number, and determine the group number of the newly opened electrolytic cell group; if the planned opening group number is greater than N during the loop, subtract N from the planned closing group number before performing the state determination;

[0168] The number of loop determinations is set to N, and the working status of the target electrolytic cell group whose group number is the same as the planned shutdown group number is determined. When the working status is the second state of being in operation, not faulty, or under maintenance, the loop is exited; or, when it is not in the second state, the planned shutdown group number is increased by 1, and the next loop is entered until the working status is the second state. The planned shutdown group number at this time is determined to be the target shutdown group number to determine the group number of the electrolytic cell group to be shut down; if the planned shutdown group number is greater than N during the loop process, the planned shutdown group number is subtracted by N before the status determination is performed again.

[0169] Optionally, the electrolytic cell array collaborative control device 600 further includes a logic number setting module 606, which is used to:

[0170] Set the logic number of the newly opened electrolytic cell group to the preset logic number;

[0171] Taking the newly opened electrolytic cell group as a reference, set a logical number for each electrolytic cell group of the target electrolytic cell group in reverse order of the group number.

[0172] Optionally, the group operating data includes the total operating power of the target electrolyzer group;

[0173] The group power allocation module 603 is specifically configured to:

[0174] Comparison P sum and the total operating power to determine the total power difference;

[0175] Determine the operating load state of the target electrolytic cell group based on the total power difference;

[0176] Determine the corresponding group power allocation value P based on the operating load status and group operating data i .

[0177] Optionally, the aforementioned operating load state includes increasing load; the group operating data further includes the number of electrolytic cells in each target electrolytic cell group, the individual operating power of each electrolytic cell in each target electrolytic cell group, and the total full load power of all target electrolytic cell groups;

[0178] The group power allocation module 603 determines the corresponding group power allocation value P based on the operating load state and group operating data. i When, specifically used for:

[0179] When the total power difference is less than the difference between the total operating power and the total full-load power, for each target electrolytic cell group, according to the number of electrolytic cells and the individual operating power of the electrolytic cells, the adjustable power value that does not cause the number of electrolytic cells to change in each target electrolytic cell group is determined to determine whether the number of electrolytic cells in operation must be changed at present, so as to obtain the corresponding power allocation method for group power allocation and obtain the corresponding group power allocation value P i ;or,

[0180] When the total power difference is greater than or equal to the difference between the total operating power and the total full load power, the target electrolytic cell group is polled in descending order of logical numbers, and the corresponding P i Set to overload power until the total power difference is distributed.

[0181] Optionally, the operating load state includes load shedding;

[0182] The group power allocation module 603 determines the corresponding group power allocation value P based on the operating load state and group operating data. i When, specifically used for:

[0183] When the total power difference is less than the adjustable power value, the target electrolytic cell group is polled in ascending order according to the logic number; when the target electrolytic cell group is in operation, the corresponding P i Subtract the corresponding adjustable power value and distribute the difference to the corresponding target electrolytic cell group until the total power difference is distributed; or,

[0184] When the total power difference is greater than or equal to the sum of the adjustable power values, the target electrolytic cell group is polled in ascending order according to the logic number; when the target electrolytic cell group is in operation, the corresponding P i Set to the corresponding power lower limit until the total power difference is distributed.

[0185] Optionally, the individual operation data includes the number of electrolytic cells in operation, the overload power of each electrolytic cell, and the power lower limit of each electrolytic cell;

[0186] The single power distribution module 604 is specifically used for:

[0187] In P i In the third state where the power factor is greater than the product of the number of electrolytic cells in operation and the overload power of the electrolytic cell, the number of electrolytic cells in operation is increased to determine the first target electrolytic cell; P i Evenly distribute to each first target electrolytic cell, and determine the power maintenance of each first target electrolytic cell to obtain the power distribution value of each electrolytic cell; or, in P i In the fourth state where the number of electrolytic cells in operation is less than the product of the lower power limit of the electrolytic cell, the number of electrolytic cells started is reduced to determine the second target electrolytic cell; P i Evenly distribute the power to each second target electrolytic cell to obtain a power distribution value for each second target electrolytic cell; or

[0188] When the state is not the third state or the fourth state, the number of electrolytic cells is determined to be the number of the third target electrolytic cells; i The power is evenly distributed to each third target electrolytic cell to obtain a power distribution value of each third target electrolytic cell.

[0189] Optionally, a single power distribution module 604 may be configured to allocate P i The power distribution value of each electrolytic cell is obtained after the power maintenance judgment is performed on each first target electrolytic cell, specifically used for:

[0190] For each first target electrolytic cell, when the power evenly distributed to the first target electrolytic cell is greater than or equal to the individual operating power of the first target electrolytic cell, the evenly distributed power value is determined as the power allocation value of the first target electrolytic cell; or,

[0191] When the power allocated to the first target electrolytic cell is less than the individual operating power of the first target electrolytic cell, the power allocation value of the operating electrolytic cell is maintained at the individual operating power of the electrolytic cell at the current moment; when the power of the newly opened electrolytic cell increases, and the power of the corresponding target electrolytic cell group is equal to P i When the difference between the power consumption and the power consumption is less than a preset threshold, the average power value is determined as the power distribution value of the operating electrolyzer.

[0192] The device performs functions similar to the method provided above. For other functions, please refer to the previous description and will not be repeated here.

[0193] Figure 7 A schematic diagram of the structure of an electronic device provided in one embodiment of the present application is shown in FIG. Figure 7 As shown, the electronic device 700 of this embodiment may include: a storage device 701 and one or more processors 702.

[0194] The storage device 701 stores a computer program that can be loaded by the processor 702 and execute the method in the above embodiment.

[0195] The processor 702 and the storage device 701 are connected, for example, via a bus.

[0196] Optionally, the electronic device 700 may further include a transceiver. It should be noted that in actual applications, the number of transceivers is not limited to one, and the structure of the electronic device 700 does not constitute a limitation on the embodiments of the present application.

[0197] Processor 702 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 702 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0198] A bus may include a path that transmits information between the components mentioned above. A bus may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, for example. Buses can be categorized as address buses, data buses, and control buses. For ease of illustration, the diagram uses only a single thick line, but this does not imply that there is only one bus or only one type of bus.

[0199] The storage device 701 can be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.

[0200] The storage device 701 is used to store application code for executing the solution of the present application, and the execution is controlled by the processor 702. The processor 702 is used to execute the application code stored in the storage device 701 to implement the content shown in the above method embodiment.

[0201] The electronic devices include, but are not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), and in-vehicle terminals (e.g., in-vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Servers and the like are also possible. Figure 7 The electronic device shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0202] The electronic device of this embodiment can be used to execute the method of any of the above embodiments. Its implementation principles and technical effects are similar and will not be described in detail here.

[0203] The present application also provides a computer-readable storage medium storing a computer program that can be loaded by a processor and execute the method in the above embodiment.

[0204] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0205] The embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the method and core ideas of the present application. At the same time, changes or modifications made by those skilled in the art based on the ideas of the present application, the specific implementation methods, and the scope of application of the present application, all fall within the scope of protection of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. A coordinated control method for an electrolytic cell array, characterized in that: include: Obtain the group operation data of the electrolytic cell group and the total power instruction P of the electrolytic cell array sum and individual operating data of each electrolytic cell in the electrolytic cell group; Based on the set of operating data and the P sum , determining the addition and subtraction group threshold of the electrolytic cell group to determine the addition and subtraction group method and the corresponding target electrolytic cell group; Based on the set of operating data and the P sum , determine the total operating power difference to determine the group power allocation value P of the target electrolytic cell group i ; Based on the P i and the individual operation data, determining a single power allocation value for each electrolytic cell, so as to control each electrolytic cell to operate according to the corresponding single power allocation value; The group operation data includes the number of electrolytic cell groups in operation, the power lower limit of each electrolytic cell group, and the overload power of each electrolytic cell group; the group addition and subtraction thresholds include a group subtraction threshold and a group addition threshold; Wherein, the said operation data based on the said group and the said P sum , determining the threshold value of adding or subtracting the electrolytic cell group to determine the adding or subtracting group method and the corresponding target electrolytic cell group, including: In the P sum When the number of electrolytic cell groups is less than the group reduction threshold, the number of electrolytic cell groups is reduced to determine the first target electrolytic cell group, and the P of the electrolytic cell group to be closed is i is set to 0 to obtain the group operation data of the first target electrolytic cell group and perform group power allocation; or, in the P sum When the number of electrolytic cell groups is greater than the threshold value, the number of electrolytic cell groups is increased to determine the second target electrolytic cell group, and the P of the electrolytic cell group to be opened is increased. i Set as the lowest operating load of the newly opened electrolytic cell group to obtain the group operating data of the second target electrolytic cell group and perform group power allocation; or, sum When the number of electrolytic cell groups is greater than or equal to the group reduction threshold and less than or equal to the group addition threshold, the number of electrolytic cell groups is determined as the third target number of electrolytic cell groups, and group power allocation is performed; The group operation data also includes the total operating power of the target electrolytic cell group; Wherein, the said operation data based on the said group and the said P sum , determine the total operating power difference to determine the group power allocation value P of the target electrolytic cell group i ,include: Compared with the P sum and the total operating power to determine a total power difference.

2. The electrolytic cell array coordinated control method according to claim 1, characterized in that: Also includes: sequentially setting group numbers for the target electrolytic cell groups; Initialize the plan opening group number and plan closing group number to 1 respectively; Set the number of loop determinations to N, determine the working status of the target electrolytic cell group with the same group number as the planned opening group number, where N is the total number of electrolytic cell groups; exit the loop when the working status is the first state of not operating, not having a fault, and being in a maintenance state; Alternatively, when the operating state is not the first state, the planned group opening number is increased by 1, and the next cycle is entered until the operating state is the first state, and the planned group opening number at this time is determined as the target group opening number to determine the group number of the newly opened electrolytic cell group; If the planned opening group number is greater than N during the cycle, the planned opening group number is subtracted from N before the status is determined; The number of loop determinations is set to N, and the operating status of the target electrolytic cell group having the same group number as the planned shutdown group number is determined. If the operating status is a second state of being in operation, not having any faults, or being under maintenance, the loop is exited; or, if the operating status is not the second state, the planned shutdown group number is incremented by 1, and the next loop is entered until the operating status reaches the second state, and the planned shutdown group number at this time is determined to be the target shutdown group number, thereby determining the group number of the electrolytic cell group to be shut down; If the planned group number is greater than N during the cycle, the planned group number is subtracted from N before the status is determined.

3. The electrolytic cell array coordinated control method according to claim 2, characterized in that: Also includes: Setting the logic number of the newly opened electrolytic cell group to a preset logic number; Taking the newly opened electrolytic cell group as a reference, a logical number is set for each electrolytic cell group of the target electrolytic cell group in reverse order of the group numbers.

4. The electrolytic cell array coordinated control method according to claim 1, characterized in that: The group operation data also includes the number of electrolytic cells in each target electrolytic cell group, the individual operating power of each electrolytic cell in each target electrolytic cell group, and the total full load power of all target electrolytic cell groups; Wherein, the said operation data based on the said group and the said P sum , determine the total operating power difference to determine the group power allocation value P of the target electrolytic cell group i , also includes: Determining an operating load state of the target electrolytic cell group according to the total power difference; wherein the operating load state includes increasing load; Based on the operating load state and the group operating data, the corresponding group power allocation value P is determined. i ; Wherein, the corresponding group power allocation value P is determined based on the operating load state and the group operating data. i ,include: When the total power difference is less than the difference between the total operating power and the total full-load power, for each target electrolytic cell group, based on the number of electrolytic cells and the individual operating power of the electrolytic cells, the adjustable power value that does not cause a change in the number of electrolytic cells in each target electrolytic cell group is determined to determine whether a change in the number of electrolytic cells in operation must occur at present, so as to obtain the corresponding power allocation method for group power allocation and obtain the corresponding group power allocation value P i ;or, When the total power difference is greater than or equal to the difference between the total operating power and the total full load power, the target electrolytic cell group is polled in descending order of logical numbers, and the corresponding P i Set to overload power until the total power difference is distributed.

5. The electrolytic cell array coordinated control method according to claim 1, characterized in that: The group operation data also includes the number of electrolytic cells in each target electrolytic cell group, the individual operating power of each electrolytic cell in each target electrolytic cell group, and the total full load power of all target electrolytic cell groups; Wherein, the said operation data based on the said group and the said P sum , determine the total operating power difference to determine the group power allocation value P of the target electrolytic cell group i , also includes: Determining an operating load state of the target electrolytic cell group according to the total power difference; wherein the operating load state includes load shedding; Based on the operating load state and the group operating data, the corresponding group power allocation value P is determined. i ; Wherein, the corresponding group power allocation value P is determined based on the operating load state and the group operating data. i ,include: When the total power difference is less than the sum of the adjustable power values, the target electrolytic cell group is polled in ascending order according to the logic number; when the target electrolytic cell group is in operation, the corresponding P i Subtracting the corresponding adjustable power value and distributing the difference to the corresponding target electrolytic cell group until the total power difference is distributed; Or, when the total power difference is greater than or equal to the sum of the adjustable power values, the target electrolytic cell group is polled in ascending order of logical numbers; when the target electrolytic cell group is in operation, the corresponding P i The corresponding power lower limit is set until the total power difference is distributed.

6. The electrolytic cell array coordinated control method according to any one of claims 1 to 5, characterized in that: The individual operation data includes the number of electrolytic cells in operation, the overload power of each electrolytic cell, and the power lower limit of each electrolytic cell; Wherein, the said based on the P i and the individual operation data, determining a single power allocation value for each electrolytic cell, so as to control each electrolytic cell to operate according to the corresponding single power allocation value, comprising: In P i In the third state where the power consumption of the electrolytic cell is greater than the product of the number of electrolytic cells in operation and the overload power of the electrolytic cell, the number of electrolytic cells started is increased to determine the first target electrolytic cell; the P i Evenly distribute the power to each first target electrolytic cell, and determine the power maintenance of each first target electrolytic cell to obtain a power distribution value for each electrolytic cell; or In P i In the fourth state where the number of electrolytic cells in operation is less than the product of the lower power limit of the electrolytic cell, the number of electrolytic cells started is reduced to determine the second target electrolytic cell; the P i Evenly distribute the power to each second target electrolytic cell to obtain a power distribution value for each second target electrolytic cell; or When the state is not the third state or the fourth state, the number of electrolytic cells is determined as the number of the third target electrolytic cells; i The power is evenly distributed to each third target electrolytic cell to obtain a power distribution value of each third target electrolytic cell.

7. The electrolytic cell array coordinated control method according to claim 6, characterized in that: The P i The power distribution is evenly distributed to each first target electrolytic cell, and a power maintenance determination is performed on each first target electrolytic cell to obtain a power distribution value for each electrolytic cell, including: For each first target electrolytic cell, when the power evenly distributed to the first target electrolytic cell is greater than or equal to the individual operating power of the first target electrolytic cell, the evenly distributed power value is determined as the power allocation value of the first target electrolytic cell; or When the power allocated to the first target electrolytic cell is less than the individual operating power of the first target electrolytic cell, the power allocation value of the operating electrolytic cell is maintained at the individual operating power of the electrolytic cell at the current moment; when the power of the newly opened electrolytic cell increases and the power of the corresponding target electrolytic cell group is equal to the P i When the difference between the power consumption and the power consumption is less than a preset threshold, the average power value is determined as the power distribution value of the operating electrolyzer.

8. A coordinated control device for an electrolytic cell array, characterized in that: include: Information acquisition module, used to obtain the group operation data of the electrolytic cell group and the total power instruction P of the electrolytic cell array sum and individual operating data of each electrolytic cell in the electrolytic cell group; Addition and subtraction group mode determination module, for determining the group operation data and the P sum , determining the addition and subtraction group threshold of the electrolytic cell group to determine the addition and subtraction group method and the corresponding target electrolytic cell group; A group power allocation module is configured to allocate power based on the group operation data and the P sum , determine the total operating power difference to determine the group power allocation value P of the target electrolytic cell group i ; A single power distribution module is used based on the P i and the individual operating data, determining a single power allocation value for each electrolytic cell, so as to control each electrolytic cell to allocate operating power according to the corresponding single power allocation value; The group operation data includes the number of electrolytic cell groups in operation, the power lower limit of each electrolytic cell group, and the overload power of each electrolytic cell group; the group addition and subtraction thresholds include a group subtraction threshold and a group addition threshold; The addition and subtraction group mode determination module is specifically used to: In the P sum When the number of electrolytic cell groups is less than the group reduction threshold, the number of electrolytic cell groups is reduced to determine the first target electrolytic cell group, and the P of the electrolytic cell group to be closed is i is set to 0 to obtain the group operation data of the first target electrolytic cell group and perform group power allocation; or, in the P sum When the number of electrolytic cell groups is greater than the threshold value, the number of electrolytic cell groups is increased to determine the second target electrolytic cell group, and the P of the electrolytic cell group to be opened is increased. i Set as the lowest operating load of the newly opened electrolytic cell group to obtain the group operating data of the second target electrolytic cell group and perform group power allocation; or, sum When the number of electrolytic cell groups is greater than or equal to the group reduction threshold and less than or equal to the group addition threshold, the number of electrolytic cell groups is determined as the third target number of electrolytic cell groups, and group power allocation is performed; The group operation data also includes the total operating power of the target electrolytic cell group; The group power distribution module is specifically used for: Compared with the P sum and the total operating power to determine a total power difference.

9. An electronic device, characterized in that: include: a storage device, one or more processors; The storage device is used to store one or more programs; A processor is used to execute one or more programs in the storage device to execute the electrolytic cell array collaborative control method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program; when the computer program is executed by the processor, the electrolytic cell array collaborative control method according to any one of claims 1 to 7 is implemented.

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