Synergistic Control Method and Device for Combined Hydrogen Production

Abstract

This application provides a coordinated control method and apparatus for hybrid hydrogen production, relating to the field of new energy hydrogen production technology. The coordinated control method for hybrid hydrogen production includes: acquiring the allocatable total power command and operating data of the hybrid hydrogen production array; determining the load change of the hybrid hydrogen production array based on the operating data and the allocatable total power command; determining the initial allocated power and load flag information of the electrolyzers based on the load change, operating data, and the initial allocated power determination method of the electrolyzers corresponding to the load change; after the hybrid hydrogen production array operates according to the preset execution period of the initial allocated power, performing power substitution between the PEM electrolyzer and the alkaline electrolyzer based on the load flag information, operating data, and the preset expected operating range corresponding to the PEM electrolyzer, so that the hybrid hydrogen production array operates according to the determined final allocated power of the electrolyzers.

Description

Technical Field

[0001] This application relates to the field of new energy hydrogen production technology, such as a synergistic control method and apparatus for hybrid hydrogen production. Background Technology

[0002] With the development of society and economy and the progress of science, hydrogen production from new energy sources has gradually become the main choice for hydrogen production due to its advantages such as being green, environmentally friendly, and having zero carbon emissions. However, due to the randomness and intermittency of new energy power generation, achieving dynamic balance between source and load is quite difficult. The mainstream electrolyzers are alkaline electrolyzers and PEM (Proton Exchange Membrane Electrolysis Cell) electrolyzers. The characteristics of the two types of electrolyzers differ significantly. PEM electrolyzers have a faster adjustment rate than alkaline electrolyzers, but their single-cell capacity is smaller and their cost is higher.

[0003] In related technologies, some practical new energy hydrogen production projects simultaneously equip alkaline electrolyzers and PEM electrolyzers, coupling them on the hydrogen side to achieve a hybrid hydrogen production effect. Currently, the control of hybrid hydrogen production only involves the array control of individual types of electrolyzers, but does not address the coordinated control of hybrid hydrogen production. Summary of the Invention

[0004] This application aims to provide a method, apparatus, electronic device, and storage medium for coordinated control of hybrid hydrogen production.

[0005] According to one aspect of this application, a coordinated control method for hybrid hydrogen production is proposed, comprising: acquiring the allocatable total power command and operating data of the hybrid hydrogen production array; determining the load change of the hybrid hydrogen production array based on the operating data and the allocatable total power command; determining the preliminary allocated power and load flag information of the electrolyzers based on the load change, the operating data, and the preliminary allocated power determination method of the electrolyzers corresponding to the load change, so that the hybrid hydrogen production array operates according to the preliminary allocated power; wherein the electrolyzers include PEM electrolyzers and alkaline electrolyzers; after the hybrid hydrogen production array operates according to the preliminary allocated power for a preset execution period, performing power substitution between the PEM electrolyzers and alkaline electrolyzers based on the load flag information, the operating data, and the preset expected operating range corresponding to the PEM electrolyzers, so that the hybrid hydrogen production array operates according to the determined final allocated power of the electrolyzers.

[0006] According to some embodiments, determining the load change of the hybrid hydrogen production array based on operating data and the allocable total power command includes: determining the current total power of the hybrid hydrogen production array based on operating data; comparing the current total power with the allocable total power command to determine the difference; and determining the load change based on the difference.

[0007] According to some embodiments, the preliminary power allocation and load flag information of the electrolyzer are determined based on load changes, operating data, and the preliminary power allocation method corresponding to the load changes. This includes: determining the adjustable power increase and decrease of the PEM electrolyzer, and the adjustable power increase and decrease of the alkaline electrolyzer, based on operating data and a preset data calculation method; obtaining the first current operating power of the PEM electrolyzer and the second current operating power of the alkaline electrolyzer; and determining the preliminary power allocation and load flag information based on load changes, the first current operating power, the second current operating power, the adjustable power increase and decrease of the PEM electrolyzer, the adjustable power increase and decrease of the alkaline electrolyzer, and the preliminary power allocation method.

[0008] According to some embodiments, load changes include load increase, load decrease, and the absolute value of the change difference corresponding to load increase or decrease; wherein, determining the preliminary allocation power and load flag information based on the load change, a first current operating power, a second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the preliminary allocation power determination method includes: when the load change is an increase, comparing the absolute value of the change difference with the adjustable power increase of the PEM electrolyzer to determine a first comparison result; obtaining the corresponding preliminary allocation power determination method based on the first comparison result, so as to determine the corresponding preliminary allocation power. The power allocation method, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the absolute value of the difference in power variation are used to determine the initial power allocation and load flag information. When the load change is a load reduction, the absolute value of the difference in power variation is compared with the adjustable power reduction of the PEM electrolyzer to determine the second comparison result. Based on the second comparison result, the corresponding initial power allocation method is obtained, and the initial power allocation and load flag information are determined according to the corresponding initial power allocation method, the first current operating power, the second current operating power, the adjustable power reduction of the PEM electrolyzer, the adjustable power reduction of the alkaline electrolyzer, and the absolute value of the difference in power variation.

[0009] According to some embodiments, a preliminary power allocation determination method is obtained based on the first comparison result. This method determines the preliminary power allocation and load flag information based on the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the absolute value of the difference in variation. This includes setting the load increase flag to 1 and the load decrease flag to 0. If the first comparison result is that the absolute value of the difference in variation is less than or equal to the adjustable power increase of the PEM electrolyzer, then the absolute value of the first current operating power and the difference in variation are summed to determine the preliminary power allocation of the PEM electrolyzer, and the preliminary power allocation of the alkaline electrolyzer is determined as the second current operating power. If the first comparison result is that the absolute value of the difference in variation is less than or equal to the adjustable power increase of the PEM electrolyzer, then the first current operating power and the absolute value of the difference in variation are summed to determine the preliminary power allocation of the PEM electrolyzer, and the preliminary power allocation of the alkaline electrolyzer is determined as the second current operating power. If the absolute value of the difference in power variation is greater than the adjustable power of the PEM electrolyzer, then the first current operating power and the adjustable power of the PEM electrolyzer are summed to determine the initial power allocation for the PEM electrolyzer. The absolute value of the difference in power variation is then subtracted from the adjustable power of the PEM electrolyzer, and this difference is compared with the adjustable power of the alkaline electrolyzer to determine the smaller value. The second current operating power and the smaller value are then summed to determine the initial power allocation for the alkaline electrolyzer. If the adjustable power of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not running, the start-up flag of the alkaline electrolyzer is set to 1. The load flag information is determined by setting the load increase flag, load decrease flag, and the start-up flag of the alkaline electrolyzer.

[0010] According to some embodiments, a preliminary power allocation determination method is obtained based on the second comparison result. This method determines the preliminary power allocation and load flag information based on the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer, and the absolute value of the difference. This includes setting the load increase flag to 0 and the load decrease flag to 1. If the second comparison result shows that the absolute value of the difference is less than or equal to the adjustable power reduction amount of the PEM electrolyzer, then the first current operating power and the absolute value of the difference are summed to determine the preliminary power allocation of the PEM electrolyzer, and the preliminary power allocation of the alkaline electrolyzer is determined as the second current operating power. If the absolute value of the difference in the second comparison result is greater than the adjustable power reduction of the PEM electrolyzer, then the difference between the first current operating power and the adjustable power reduction of the PEM electrolyzer is calculated to determine the initial power allocation of the PEM electrolyzer; the difference between the absolute value of the difference and the adjustable power reduction of the PEM electrolyzer is calculated, and the difference is compared with the adjustable power reduction of the alkaline electrolyzer to determine the smaller value; the difference between the second current power and the smaller value is calculated to determine the initial power allocation of the alkaline electrolyzer; when the adjustable power reduction of the alkaline electrolyzer is 0 and the alkaline electrolyzer is turned on, the shutdown flag of the alkaline electrolyzer is set to 1; the information of the load increase flag, the load decrease flag, and the shutdown flag of the alkaline electrolyzer is used to determine the load flag information.

[0011] According to some embodiments, the above method further includes: when the start-up flag of the alkaline electrolyzer is 1, turning on the alkaline electrolyzer after a preset time period, and determining the initial allocated power of the alkaline electrolyzer as the preset minimum operating power of the alkaline electrolyzer; calculating the difference between the total allocable power command and the preset minimum operating power to determine the difference value, and determining the initial allocated power of the PEM electrolyzer as the difference value; setting the start-up flag of the alkaline electrolyzer to 0; when the shutdown flag of the alkaline electrolyzer is 1, turning off the alkaline electrolyzer after a preset time period, determining the smaller value between the total allocable power command and the preset rated operating power of the PEM electrolyzer, and determining the initial allocated power of the PEM electrolyzer as the smaller value; and setting the shutdown flag of the alkaline electrolyzer to 0.

[0012] According to some embodiments, after the hybrid hydrogen production array operates according to the preset execution period of the initial power allocation, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced based on the load flag information and the preset expected operating range corresponding to the PEM electrolyzer, so that the hybrid hydrogen production array operates according to the determined final power allocation of the electrolyzers. This includes: obtaining the preset expected operating range; after the hybrid hydrogen production array operates according to the preset execution period of the initial power allocation, detecting the load flag information corresponding to the load increase flag and the load decrease flag; when the load increase flag is 1 and the initial power allocation of the PEM electrolyzer is greater than the upper limit of the expected operating range, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to a preset power replacement calculation method to determine the final power allocation; and when the load decrease flag is 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the expected operating range, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to a preset power replacement calculation method to determine the final power allocation.

[0013] According to some embodiments, when the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the desired operating range, power substitution is performed between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power substitution calculation method to determine the final allocated power; and when the load decrease flag is 1 and the initial allocated power of the PEM electrolyzer is less than the lower limit of the desired operating range, power substitution is performed between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power substitution calculation method to determine the final allocated power, including: when the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the desired operating range, the initial allocated power of the PEM electrolyzer is subtracted from the upper limit according to the power substitution calculation method to determine a first difference; the first difference is then determined in relation to the power increase of the alkaline electrolyzer. The first smaller value between the adjustable power of the PEM electrolyzer and the first smaller value is used to determine the final power allocation of the PEM electrolyzer; the initial power allocation of the alkaline electrolyzer is added to the first smaller value to determine the final power allocation of the alkaline electrolyzer; and, when the load reduction flag is 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the desired operating range, the difference between the lower limit and the initial power allocation of the PEM electrolyzer is calculated according to the power substitution method to determine the second difference; the second smaller value between the second difference and the adjustable power reduction of the alkaline electrolyzer is determined, and the second smaller value is summed with the initial power allocation of the PEM electrolyzer to determine the final power allocation of the PEM electrolyzer; the difference between the initial power allocation of the alkaline electrolyzer and the second smaller value is used to determine the final power allocation of the alkaline electrolyzer.

[0014] According to one aspect of this application, a coordinated control device for hybrid hydrogen production is proposed, characterized in that it comprises:

[0015] The data acquisition module is used to acquire the allocatable total power command and the operating data of the hybrid hydrogen production array.

[0016] The load change determination module is used to determine the load change of the hybrid hydrogen production array based on operating data and the total allocable power command.

[0017] The preliminary power determination module is used to determine the preliminary power allocation and load flag information of the electrolyzers based on load changes, operating data, and the preliminary power allocation method corresponding to the load changes, so that the hybrid hydrogen production array can operate according to the preliminary power allocation; wherein, the electrolyzers include PEM electrolyzers and alkaline electrolyzers;

[0018] The power replacement module is used to replace the power of the PEM electrolyzer and the alkaline electrolyzer after the hybrid hydrogen production array has been operating according to the preset execution period of the initial power allocation. This is based on the load flag information, operating data, and the preset expected operating range corresponding to the PEM electrolyzer, so that the hybrid hydrogen production array can operate according to the determined final power allocation of the electrolyzer.

[0019] Optionally, the load change determination module is specifically used for:

[0020] Based on the operating data, determine the current total power of the hybrid hydrogen production array;

[0021] The current total power and the total allocable power command are compared to determine the difference;

[0022] The load change is determined based on the difference.

[0023] Optionally, when the preliminary power determination module determines the preliminary allocated power and load flag information of the electrolyzer based on load changes, operating data, and the preliminary allocated power determination method corresponding to the load changes, it is specifically used for:

[0024] Based on the operating data and the preset data calculation method, determine the adjustable power increase and power decrease of the PEM electrolyzer, and the adjustable power increase and power decrease of the alkaline electrolyzer.

[0025] Obtain the first current operating power of the PEM electrolyzer and the second current operating power of the alkaline electrolyzer;

[0026] Based on load changes, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the method for determining the initial power allocation, the initial power allocation and load flag information are determined.

[0027] Optionally, the load change includes load increase, load decrease, and the absolute value of the change difference corresponding to load increase or decrease; wherein, the preliminary power determination module, based on the load change, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the preliminary power allocation determination method, determines the preliminary allocated power and load flag information, specifically for:

[0028] When the load changes to a load, the absolute value of the change difference is compared with the adjustable power of the PEM electrolyzer to determine the first comparison result;

[0029] Based on the first comparison result, the corresponding preliminary power allocation determination method is obtained, and the preliminary power allocation and load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power of the PEM electrolyzer, the adjustable power of the alkaline electrolyzer, and the absolute value of the change difference.

[0030] When the load change is a load reduction, the absolute value of the change difference is compared with the adjustable power reduction of the PEM electrolyzer to determine the second comparison result;

[0031] Based on the second comparison result, the corresponding preliminary power allocation determination method is obtained. The preliminary power allocation and load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction of the PEM electrolyzer, the adjustable power reduction of the alkaline electrolyzer, and the absolute value of the change difference.

[0032] Optionally, the preliminary power determination module, after obtaining the corresponding preliminary power allocation determination method based on the first comparison result, and determining the preliminary power allocation and load flag information based on the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the absolute value of the difference, is specifically used for:

[0033] Set the load increase flag to 1 and the load decrease flag to 0;

[0034] If the absolute value of the difference in the first comparison result is less than or equal to the adjustable power of the PEM electrolyzer, then the first current operating power and the difference in the change are summed to determine the initial power allocation of the PEM electrolyzer, and the initial power allocation of the alkaline electrolyzer is determined as the second current operating power.

[0035] If the absolute value of the first comparison result is greater than the adjustable power of the PEM electrolyzer, then the first current operating power and the adjustable power of the PEM electrolyzer are summed to determine the initial power allocation of the PEM electrolyzer; the difference between the change value and the adjustable power of the PEM electrolyzer is calculated, and the difference is compared with the adjustable power of the alkaline electrolyzer to determine the smaller value; the second current operating power and the smaller value are summed to determine the initial power allocation of the alkaline electrolyzer; if the adjustable power of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not turned on, the start-up flag of the alkaline electrolyzer is set to 1;

[0036] The information set by the load increase flag, load decrease flag, and start-up flag of the alkaline electrolyzer determines the load flag information.

[0037] Optionally, the preliminary power determination module, after obtaining the corresponding preliminary power allocation determination method based on the second comparison result, and determining the preliminary power allocation and load flag information based on the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction of the PEM electrolyzer, the adjustable power reduction of the alkaline electrolyzer, and the absolute value of the difference, is specifically used for:

[0038] Set the load increase flag to 0 and the load decrease flag to 1;

[0039] If the absolute value of the difference in the second comparison result is less than or equal to the adjustable power reduction of the PEM electrolyzer, then the absolute value of the difference in the first current operating power is summed to determine the initial power allocation of the PEM electrolyzer, and the initial power allocation of the alkaline electrolyzer is determined as the second current operating power.

[0040] If the absolute value of the difference in the second comparison result is greater than the adjustable power reduction of the PEM electrolyzer, then the difference between the first current operating power and the adjustable power reduction of the PEM electrolyzer is calculated to determine the initial power allocation of the PEM electrolyzer; the difference between the absolute value of the difference and the adjustable power reduction of the PEM electrolyzer is calculated, and the difference is compared with the adjustable power reduction of the alkaline electrolyzer to determine the smaller value; the difference between the second current power and the smaller value is calculated to determine the initial power allocation of the alkaline electrolyzer; when the adjustable power reduction of the alkaline electrolyzer is 0 and the alkaline electrolyzer is turned on, the shutdown flag of the alkaline electrolyzer is set to 1;

[0041] The information set by the load increase flag, load decrease flag, and shutdown flag of the alkaline electrolyzer determines the load flag information.

[0042] Optionally, the coordinated control device for hybrid hydrogen production also includes an alkaline electrolyzer start-up / shutdown determination module, used for:

[0043] With the start-up flag of the alkaline electrolyzer set to 1, the alkaline electrolyzer is turned on after a preset time period. The initial power allocation of the alkaline electrolyzer is determined as the preset minimum operating power of the alkaline electrolyzer. The difference between the total allocable power command and the preset minimum operating power is calculated to determine the difference, and the initial power allocation of the PEM electrolyzer is determined as the difference. The start-up flag of the alkaline electrolyzer is then set to 0.

[0044] When the shutdown flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is shut down after a preset time period. The smaller value between the total power allocation command and the preset rated operating power of the PEM electrolyzer is determined, and the initial allocated power of the PEM electrolyzer is determined to be the smaller value. The shutdown flag of the alkaline electrolyzer is set to 0.

[0045] Optionally, the power displacement module is specifically used for:

[0046] Obtain the preset desired operating range;

[0047] After the hybrid hydrogen production array operates according to the preset execution period of the initial power allocation, the load flag information corresponding to the load increase flag and the load decrease flag is detected.

[0048] When the load increase flag is set to 1 and the initial power allocation for the PEM electrolyzer is greater than the upper limit of the desired operating range, power substitution is performed between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power substitution calculation method to determine the final power allocation; and,

[0049] When the load reduction flag is set to 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the expected operating range, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to the pre-set power replacement calculation method to determine the final power allocation.

[0050] Optionally, when the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the desired operating range, the power replacement module performs power replacement between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power replacement calculation method to determine the final allocated power; and when the load decrease flag is 1 and the initial allocated power of the PEM electrolyzer is less than the lower limit of the desired operating range, the power replacement module performs power replacement between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power replacement calculation method to determine the final allocated power, specifically for:

[0051] When the load increase flag is 1 and the initial power allocation of the PEM electrolyzer is greater than the upper limit of the expected operating range, the initial power allocation of the PEM electrolyzer is calculated by subtracting the upper limit from the power replacement calculation method to determine the first difference.

[0052] Determine the smaller value between the first difference and the adjustable power of the alkaline electrolyzer, and calculate the difference between the initial power allocation of the PEM electrolyzer and the first smaller value to determine the final power allocation of the PEM electrolyzer.

[0053] The initial power allocation of the alkaline electrolyzer is added to a first smaller value to determine the final power allocation of the alkaline electrolyzer; and,

[0054] When the load reduction flag is 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the expected operating range, the difference between the lower limit and the initial power allocation of the PEM electrolyzer is calculated according to the power replacement calculation method to determine the second difference value.

[0055] Determine the second smaller value between the second difference and the adjustable power reduction of the alkaline electrolyzer, and sum the second smaller value with the initial power allocation of the PEM electrolyzer to determine the final power allocation of the PEM electrolyzer.

[0056] The final power allocation for the alkaline electrolyzer is determined by subtracting the initial power allocation from the second smaller value.

[0057] According to one aspect of this application, an electronic device is proposed, comprising: a processor; and a memory storing a computer program, which, when executed by the processor, causes the processor to perform the coordinated control method for combined hydrogen production as described above.

[0058] According to one aspect of this application, a non-transitory computer-readable medium is proposed, on which readable instructions are stored, which, when executed by a processor, cause the processor to perform the cooperative control method for hybrid hydrogen production as described above.

[0059] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application.

[0060] Beneficial effects:

[0061] The embodiments provided in this application fully leverage the rapid response capability of the PEM electrolyzer and the large-capacity support capability of the alkaline electrolyzer. By acquiring the allocable total power command and operating data of the hybrid hydrogen production array in real time, the load changes of the hybrid array are determined. Based on the load changes and the initial power allocation method for the electrolyzers, initial power is allocated to each electrolyzer, with the PEM electrolyzer responding rapidly. Then, a power replacement strategy is formulated based on the expected operating range of the PEM electrolyzer, gradually transferring the power borne by the PEM electrolyzer to the alkaline electrolyzer. Through the power replacement strategy, the PEM electrolyzer is ensured to be within the ideal operating range, exhibiting good responsiveness during subsequent power increases and decreases, thereby improving the response speed of the total power command in the hybrid hydrogen production scenario. The replacement process, through rate limiting, ensures the safety of alkaline electrolyzer regulation and the stability of the total power of the hybrid hydrogen production array. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings, without exceeding the scope of protection claimed by this application.

[0063] Figure 1 A flowchart of the coordinated control method for hybrid hydrogen production provided in the embodiments of this application;

[0064] Figure 2 A flowchart illustrating the specific implementation of step S11 provided in the embodiments of this application;

[0065] Figure 3 The flowchart below shows the specific implementation of step S12 in this application embodiment, which determines the initial power allocation of the electrolytic cell and the load flag information based on the load change, operating data, and the initial power allocation method of the electrolytic cell corresponding to the load change.

[0066] Figure 4 The flowchart below shows the specific implementation of step S121 in the embodiments of this application, which determines the preliminary allocation power and load flag information based on load changes, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the preliminary allocation power determination method.

[0067] Figure 5The flowchart below shows the specific implementation of step S1211 in this application embodiment, which involves obtaining the corresponding preliminary power allocation determination method based on the first comparison result, and determining the preliminary power allocation and load flag information based on the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the absolute value of the change difference.

[0068] Figure 6 The flowchart below shows the specific implementation of step S1213 in this application embodiment, which involves obtaining the corresponding preliminary power allocation determination method based on the second comparison result, and determining the preliminary power allocation and load flag information based on the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer, and the absolute value of the change difference.

[0069] Figure 7 A flowchart illustrating the specific implementation of step S13 provided in the embodiments of this application;

[0070] Figure 8 A block diagram of a coordinated control device for hybrid hydrogen production provided in an embodiment of this application;

[0071] Figure 9 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0072] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0073] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0074] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0075] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0076] It should be understood that although the terms first, second, third, etc., may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one component from another. Therefore, the first component discussed below may be referred to as the second component without departing from the teachings of this application. As used herein, the term "and / or" includes all combinations of any one and more of the associated listed items.

[0077] For specific implementation details, please refer to the following examples.

[0078] Figure 1 This is a flowchart illustrating a coordinated control method for combined hydrogen production provided in an embodiment of this application. The method in this embodiment can be applied to a control server. Figure 1 As shown, the method includes steps S10, S11, S12 and S13.

[0079] In step S10, the allocatable total power command of the hybrid hydrogen production array and the operating data of the hybrid hydrogen production array are obtained.

[0080] In this application, "hybrid hydrogen production array" can be used to represent the combination of different types of hydrogen production technologies or equipment in a hybrid parallel manner to form a comprehensive hydrogen production system. The total power command P can be allocated. sum It can be used to represent the total power that can be allocated when performing coordinated control in the current cycle. This instruction can be an external input or calculated by other systems.

[0081] The operating data of the hybrid hydrogen production array can include the current total power of the hybrid hydrogen production array, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the adjustable power decrease of the alkaline electrolyzer.

[0082] According to the example embodiment, the control server can receive the allocable total power command input by relevant personnel, and then obtain various operating data detected by the preset detection equipment on the hybrid hydrogen production array.

[0083] In step S11, the load variation of the hybrid hydrogen production array is determined based on the operating data and the total power allocation command.

[0084] In this application, the load change of the hybrid hydrogen production array can be used to represent the change in power or workload of each hydrogen production unit during the operation of the hybrid hydrogen production array.

[0085] In some implementations, a load change determination model can be pre-set. By inputting operating data and the total allocable power command into this model, the load change of the hybrid hydrogen production array can be directly output. The load change can include both load increases and decreases.

[0086] In step S12, the initial power allocation and load flag information of the electrolyzer are determined according to the load change, operating data, and the initial power allocation method of the electrolyzer corresponding to the load change, so that the hybrid hydrogen production array can operate according to the initial power allocation; wherein, the electrolyzer includes a PEM electrolyzer and an alkaline electrolyzer.

[0087] In this application, a preliminary power allocation method for electrolytic cells corresponding to different load changes can be preset. This preliminary power allocation method can be used to initially determine the power allocation data for different electrolytic cells. The load flag information may include an alkaline electrolytic cell start-up flag, an alkaline electrolytic cell shutdown flag, an increase load flag, and a decrease load flag, etc.

[0088] The initial power allocation can be determined by a pre-set calculation formula or a pre-established relevant model.

[0089] According to the example embodiment, load changes and operating data can be substituted into the corresponding positions in the preliminary power allocation determination method to obtain the preliminary power allocation and load flag information of the electrolyzer. Then, the preliminary power allocation can be sent to the hybrid hydrogen production array for execution, and the load flags can be set according to the load flag information.

[0090] In step S13, after the hybrid hydrogen production array operates according to the preset execution period of the initial power allocation, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to the load flag information, operating data and the preset expected operating range corresponding to the PEM electrolyzer, so that the hybrid hydrogen production array operates according to the determined final power allocation of the electrolyzer.

[0091] In this application, the preset execution period can be a pre-set period that ensures the stable operation of the hybrid hydrogen production array under the initial power allocation. The preset expected operating range can be a pre-set power range suitable for the operation of the PEM electrolyzer. Power substitution can be used to represent the process of power allocation, conversion, or substitution between different electrolyzers. The final allocated power can be used to represent the final allocated power of the PEM electrolyzer and the alkaline electrolyzer in the hybrid hydrogen production array within this cycle.

[0092] Different power substitution methods can be preset for different load flag information and operating data within different preset expected operating ranges. In some implementations, by matching the corresponding power substitution method, calculations are performed based on the load flag information and operating data to obtain the final allocated power for each of the PEM electrolyzer and alkaline electrolyzer. The final allocated power can then be distributed to the corresponding PEM and alkaline electrolyzers so that the electrolyzers can operate according to the final allocated power.

[0093] This application fully leverages the rapid response capability of PEM electrolyzers and the large-capacity support capability of alkaline electrolyzers. By acquiring the allocable total power command and operating data of the hybrid hydrogen production array in real time, the load changes of the hybrid array are determined. Based on the load changes and the initial power allocation method for each electrolyzer, initial power is allocated to each electrolyzer, with the PEM electrolyzers responding rapidly. Then, a power replacement strategy is formulated based on the expected operating range of the PEM electrolyzers, gradually transferring the power borne by the PEM electrolyzers to the alkaline electrolyzers. Through the power replacement strategy, the PEM electrolyzers are kept within the ideal operating range, ensuring good responsiveness during subsequent power increases and decreases, thereby improving the response speed of the total power command in the hybrid hydrogen production scenario. The replacement process, through rate limiting, ensures the safety of alkaline electrolyzer regulation and the stability of the total power of the hybrid hydrogen production array.

[0094] According to some embodiments, the electrolytic cell includes a PEM electrolytic cell and an alkaline electrolytic cell. (Reference) Figure 2 Step S11 can be implemented through steps S110 and S111.

[0095] In step S110, the current total power of the hybrid hydrogen production array is determined based on the operating data.

[0096] In this application, the current total power of the hybrid hydrogen production array = the current power of the alkaline electrolyzer + the current power of the PEM electrolyzer.

[0097] According to the example embodiment, the current power of the alkaline electrolyzer and the current power of the PEM electrolyzer are extracted from the operating data, and the current total power is calculated.

[0098] In step S111, the current total power and the allocable total power command are compared to determine the difference; based on the difference, the load change is determined.

[0099] According to the example embodiment, the difference between the allocable total power command and the current total power is calculated to obtain the difference value. If the difference value is greater than zero, it indicates an increase in load; if the difference value is less than zero, it indicates a decrease in load.

[0100] This application utilizes differential calculations to determine load variations in the hybrid hydrogen production array, facilitating adjustments to the control methods and ensuring efficient and stable operation of the hydrogen production process. This dynamic adjustment mechanism not only optimizes energy allocation but also improves hydrogen production efficiency, contributing to more precise power control and more stable hydrogen production. Furthermore, it enhances the response speed and flexibility of the hybrid hydrogen production array, enabling it to better adapt to different power demands and operating conditions.

[0101] According to some embodiments, reference Figure 3 In step S12, the initial power allocation and load flag information of the electrolytic cell are determined based on the load change, operating data and the initial power allocation method of the electrolytic cell corresponding to the load change. This can be achieved through steps S120 and S121.

[0102] In step S120, based on the operating data and the preset data calculation method, the adjustable power increase and the adjustable power decrease of the PEM electrolyzer, and the adjustable power increase and the adjustable power decrease of the alkaline electrolyzer are determined.

[0103] In this application, the data calculation method can be preset, wherein,

[0104] Adjustable power output of PEM electrolyzer = Rated power of PEM electrolyzer - Current power of PEM electrolyzer;

[0105] Adjustable power reduction of PEM electrolyzer = Current power of PEM electrolyzer - 0.05 * Rated power of PEM electrolyzer;

[0106] When the alkaline electrolytic cell is not in operation, the adjustable power increase of the alkaline electrolytic cell is 0, and the adjustable power decrease of the alkaline electrolytic cell is 0.

[0107] When the alkaline electrolyzer is in operation, the adjustable power increase of the alkaline electrolyzer = the rated power of the alkaline electrolyzer - the current power of the alkaline electrolyzer, and the adjustable power decrease of the alkaline electrolyzer = the current power of the alkaline electrolyzer - 0.3 * the rated power of the alkaline electrolyzer.

[0108] In some implementations, since the safe operating range of the PEM electrolyzer is 5%-100%, the adjustable power reduction of the PEM electrolyzer can be preset to the current power of the PEM electrolyzer minus 0.05 * the rated power of the PEM electrolyzer. Similarly, the safe operating range of the alkaline electrolyzer can be preset to 30%-100%, therefore, during alkaline electrolyzer operation, the adjustable power reduction is the current power of the alkaline electrolyzer minus 0.3 * the rated power of the alkaline electrolyzer.

[0109] According to the example embodiment, the current power of the alkaline electrolyzer, the rated power of the alkaline electrolyzer, the current power of the PEM electrolyzer, and the rated power of the PEM electrolyzer can be extracted from the operating data. Through the above data calculation method, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the adjustable power decrease of the alkaline electrolyzer can be calculated.

[0110] In step S121, the first current operating power of the PEM electrolyzer and the second current operating power of the alkaline electrolyzer are obtained; based on the load change, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the method for determining the initial power allocation, the initial power allocation and load flag information are determined.

[0111] According to the example embodiment, the current power of the PEM electrolyzer can be extracted from the operating data as the first current operating power, and the extracted current power of the alkaline electrolyzer can be used as the second current operating power.

[0112] In some implementations, the first current operating power of the PEM electrolyzer and the second current operating power of the alkaline electrolyzer can be directly detected at the current moment. A preliminary information determination model can be pre-set, and by inputting load changes, the first current operating power, the second current operating power, the adjustable power increase amount of the PEM electrolyzer, the adjustable power decrease amount of the PEM electrolyzer, the adjustable power increase amount of the alkaline electrolyzer, the adjustable power decrease amount of the alkaline electrolyzer, and the preliminary power allocation determination method into this model, the preliminary power allocation and compliance flag information can be directly output.

[0113] This application determines the adjustable power increase and decrease of PEM and alkaline electrolyzers based on operational data and preset calculation methods, enabling precise control over the electrolyzers' power adjustment potential under varying loads. This precision facilitates flexible adjustment of the electrolyzers' power output according to load demands during actual operation, thereby improving the overall system efficiency and response speed. It can dynamically determine the initial power allocation based on real-time load changes, combined with the electrolyzers' current operating power and adjustable power range. Furthermore, it allows for real-time adjustment of the electrolyzers' operating status according to changes in external conditions, enhancing the dynamic adaptability and flexibility of the hybrid hydrogen production array.

[0114] According to some embodiments, load changes include increases in load, decreases in load, and the absolute value of the difference between increases in load or decreases in load. (See reference) Figure 4 In step S121, the preliminary power allocation and load flag information are determined based on load changes, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the preliminary power allocation determination method. Specifically, this can be achieved through steps S1210, S1211, S1212, and S1213.

[0115] In step S1210, when the load change is an increase in load, the absolute value of the change difference is compared with the adjustable power of the PEM electrolyzer to determine the first comparison result.

[0116] According to the example embodiment, if the load is increased, the absolute value of the change difference can be compared with the adjustable power of the PEM electrolyzer to obtain a first comparison result. Therefore, the first comparison result can include cases where the absolute value of the change difference is greater than the adjustable power of the PEM electrolyzer, the absolute value of the change difference is less than the adjustable power of the PEM electrolyzer, and the absolute value of the change difference is equal to the adjustable power of the PEM electrolyzer.

[0117] In step S1211, the corresponding preliminary power allocation determination method is obtained based on the first comparison result, and the preliminary power allocation and load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power of the PEM electrolyzer, the adjustable power of the alkaline electrolyzer, and the absolute value of the change difference.

[0118] In this application, the preliminary power allocation determination method can be preset for different first comparison results.

[0119] According to the example embodiment, after obtaining the preliminary power allocation determination method corresponding to the first comparison result, the first current operating power, the second current operating power, the adjustable power of the PEM electrolyzer, the adjustable power of the alkaline electrolyzer, and the absolute value of the change difference can be substituted into the preliminary power allocation determination method for calculation to obtain the preliminary power allocation and load flag information.

[0120] In step S1212, when the load change is a load reduction, the absolute value of the change difference is compared with the adjustable power reduction of the PEM electrolyzer to determine the second comparison result.

[0121] According to the example embodiment, if the load is reduced, the absolute value of the change difference is compared with the adjustable power reduction amount of the PEM electrolyzer to obtain a second comparison result. The second comparison result may include the absolute value of the change difference being greater than the adjustable power reduction amount of the PEM electrolyzer, the absolute value of the change difference being less than the adjustable power reduction amount of the PEM electrolyzer, and the absolute value of the change difference being equal to the adjustable power reduction amount of the PEM electrolyzer.

[0122] In step S1213, the corresponding preliminary power allocation determination method is obtained based on the second comparison result, and the preliminary power allocation and load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer, and the absolute value of the change difference.

[0123] In this application, the preliminary power allocation determination method can be preset for different second comparison results.

[0124] According to the example embodiment, after obtaining the preliminary power allocation determination method corresponding to the first comparison result, the first current operating power, the second current operating power, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer, and the absolute value of the change difference can be substituted into the preliminary power allocation determination method for calculation to obtain the preliminary power allocation and load flag information.

[0125] This application, by monitoring load changes in real time and based on the current operating power and adjustable power scaling of the PEM and alkaline electrolyzers, can quickly and accurately determine the initial power allocation for the electrolyzers, ensuring that the hybrid hydrogen production array can rapidly adjust to its optimal operating state when facing load fluctuations. In cases of load increase or decrease, by comparing the current operating power with the adjustable power scaling of the electrolyzers, the most suitable power allocation strategy can be intelligently selected. This maximizes the utilization of the electrolyzers' power regulation capabilities while ensuring stable hydrogen production operation, thereby improving overall energy efficiency. The introduction of load flag information further enhances the flexibility of the hydrogen production process. The load flag information reflects the load status of the hybrid hydrogen production array in real time, providing an important basis for subsequent power adjustments and strategy optimization.

[0126] According to some embodiments, reference Figure 5 In step S1211, the corresponding preliminary power allocation determination method is obtained based on the first comparison result. The preliminary power allocation and load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power of the PEM electrolyzer, the adjustable power of the alkaline electrolyzer, and the absolute value of the change difference. Specifically, this can be done through steps S12110, S12111, S12112, and S12113.

[0127] In step S12110, the load increase flag is set to 1 and the load decrease flag is set to 0.

[0128] In step S12111, if the absolute value of the first comparison result is less than or equal to the adjustable power of the PEM electrolyzer, then the absolute value of the first current operating power and the change difference are summed to determine the initial allocated power of the PEM electrolyzer, and the initial allocated power of the alkaline electrolyzer is determined as the second current operating power.

[0129] According to the example embodiment, if the absolute value of the first comparison result is less than or equal to the adjustable power of the PEM electrolyzer, the first current operating power and the absolute value of the difference can be added together as the initial power allocation of the PEM electrolyzer. There is no need to control the alkaline electrolyzer and keep its second current operating power unchanged. That is, the second current operating power is used as the initial power allocation of the alkaline electrolyzer.

[0130] In step S12112, if the absolute value of the first comparison result is greater than the adjustable power of the PEM electrolyzer, then the first current operating power and the adjustable power of the PEM electrolyzer are summed to determine the initial power allocation of the PEM electrolyzer; the absolute value of the difference is subtracted from the adjustable power of the PEM electrolyzer, and the difference is compared with the adjustable power of the alkaline electrolyzer to determine the smaller value; the second current operating power and the smaller value are summed to determine the initial power allocation of the alkaline electrolyzer; when the adjustable power of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not turned on, the start-up flag of the alkaline electrolyzer is set to 1.

[0131] According to the example embodiment, if the absolute value of the difference in the first comparison result is greater than the adjustable power boost of the PEM electrolyzer, then the first current operating power and the adjustable power boost of the PEM electrolyzer are added together as the initial allocated power of the PEM electrolyzer. The absolute value of the difference is subtracted from the adjustable power boost of the PEM electrolyzer to obtain the difference. The smaller value between this difference and the adjustable power boost of the alkaline electrolyzer is extracted and added to the second current operating power to obtain the initial allocated power of the alkaline electrolyzer. If, under the current circumstances, the adjustable power boost of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not powered on, the power-on flag of the alkaline electrolyzer is set to 1.

[0132] In step S12113, the information of the load increase flag, the load decrease flag, and the start-up flag of the alkaline electrolyzer are used to determine the load flag information.

[0133] According to the example embodiment, the specific settings (0 / 1) of the load increase flag bit, the load decrease flag bit in step S12110 and the start-up flag bit of the alkaline electrolytic cell in step S12112 are determined as the load flag bit information.

[0134] When the absolute value of the load difference is less than the adjustable power output of the PEM electrolyzer, this application selects to increase only the power of the PEM electrolyzer to meet the load demand. This efficiently utilizes the residual power adjustment capability of the PEM electrolyzer, avoiding unnecessary power waste, while ensuring that the PEM electrolyzer operates in an optimal or near-optimal state. When the absolute value of the load difference is greater than the adjustable power output of the PEM electrolyzer, the PEM electrolyzer is first brought to its maximum adjustable power, then the remaining load change is calculated and allocated to the alkaline electrolyzer. This allocation method ensures that load changes can be effectively shared by all available resources within the hybrid hydrogen production array. When the adjustable power output of the alkaline electrolyzer is 0 and it is not powered on, the technical strategy can intelligently identify this state and trigger the startup operation of the alkaline electrolyzer. Simultaneously, by correctly setting the load increase and decrease flags, the hybrid hydrogen production array can clearly reflect the current load change direction and state, providing important information for subsequent control strategies.

[0135] According to some embodiments, reference Figure 6 In step S1213, the corresponding preliminary power allocation determination method is obtained based on the second comparison result. The preliminary power allocation and load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer, and the absolute value of the change difference. Specifically, this can be achieved through steps S12130, S12131, S12132, and S12133.

[0136] In step S12130, the load increase flag is set to 0 and the load decrease flag is set to 1.

[0137] In step S12131, if the absolute value of the difference in the second comparison result is less than or equal to the adjustable power reduction of the PEM electrolyzer, then the first current operating power and the difference in the difference are summed to determine the initial power allocation of the PEM electrolyzer, and the initial power allocation of the alkaline electrolyzer is determined to be the second current operating power remaining unchanged.

[0138] According to the example embodiment, if the absolute value of the difference in the second comparison result is less than or equal to the adjustable power reduction of the PEM electrolyzer, the first current operating power and the absolute value of the difference are added together to obtain the initial allocated power of the PEM electrolyzer. There is no need to control the alkaline electrolyzer and keep its second current operating power unchanged. That is, the second current operating power is used as the initial allocated power of the alkaline electrolyzer.

[0139] In step S12132, if the absolute value of the difference in the second comparison result is greater than the adjustable power reduction amount of the PEM electrolyzer, then the difference between the first current operating power and the adjustable power reduction amount of the PEM electrolyzer is calculated to determine the initial power allocation of the PEM electrolyzer; the difference between the absolute value of the difference and the adjustable power reduction amount of the PEM electrolyzer is calculated, and the difference is compared with the adjustable power reduction amount of the alkaline electrolyzer to determine the smaller value; the difference between the second current power and the smaller value is calculated to determine the initial power allocation of the alkaline electrolyzer.

[0140] According to the example embodiment, if the absolute value of the difference in the second comparison result is greater than the adjustable power reduction amount of the PEM electrolyzer, then the initial allocated power of the PEM electrolyzer is obtained by subtracting the adjustable power reduction amount of the PEM electrolyzer from the first current operating power. The difference is obtained by subtracting the adjustable power reduction amount of the PEM electrolyzer from the absolute value of the difference, and the smaller of this difference and the adjustable power reduction amount of the alkaline electrolyzer is taken as the smaller value. Then, the initial allocated power of the alkaline electrolyzer is obtained by subtracting this smaller value from the second current power.

[0141] In step S12133, the information of the load increase flag, the load decrease flag, and the shutdown flag of the alkaline electrolyzer are used to determine the load flag information.

[0142] According to the example embodiment, the specific settings (0 / 1) of the load increase flag bit, the load decrease flag bit in step S12130 and the shutdown flag bit of the alkaline electrolytic cell in step S12132 are determined as the load flag bit information.

[0143] When the absolute value of the power reduction difference is less than the adjustable power reduction amount of the PEM electrolyzer, this application selects to reduce only the power of the PEM electrolyzer to adapt to the load reduction. When the absolute value of the power reduction difference is greater than the adjustable power reduction amount of the PEM electrolyzer, the PEM electrolyzer is first reduced to its minimum allowable power. Then, the remaining load reduction amount is calculated and allocated to the alkaline electrolyzer, ensuring that the load reduction can be effectively shared by all available resources in the hybrid hydrogen production array, avoiding excessive power reduction or inefficient operation of a single device. When the adjustable power reduction amount of the alkaline electrolyzer is 0 and it is already powered on, this state can be intelligently identified, and the shutdown operation of the alkaline electrolyzer can be triggered. This not only optimizes the energy efficiency of the hybrid hydrogen production array but also extends the service life of the alkaline electrolyzer and reduces maintenance costs.

[0144] According to some embodiments, the start-up and shutdown status of the alkaline electrolyzer can also be determined, specifically through the following steps: When the start-up flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is turned on after a preset period of time, and the initial allocated power of the alkaline electrolyzer is determined as the preset minimum operating power of the alkaline electrolyzer; the difference between the total allocable power command and the preset minimum operating power is calculated to determine the difference value, and the initial allocated power of the PEM electrolyzer is determined as the difference value; the start-up flag of the alkaline electrolyzer is set to 0; When the shutdown flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is turned off after a preset period of time, the smaller value between the total allocable power command and the preset rated operating power of the PEM electrolyzer is determined, and the initial allocated power of the PEM electrolyzer is determined as the smaller value; the shutdown flag of the alkaline electrolyzer is set to 0.

[0145] In some implementations, the start-up and shutdown status of the alkaline electrolyzer can be determined. When the alkaline electrolyzer's start-up flag is 1, the alkaline electrolyzer is started after a preset delay. After startup, the initial allocated power of the alkaline electrolyzer is equal to its minimum operating power. The initial allocated power of the PEM electrolyzer is equal to the total allocated power minus the minimum operating power of the alkaline electrolyzer. The alkaline electrolyzer's start-up flag is then set to 0. Based on the preset safe operating range of the alkaline electrolyzer, the preset minimum operating power can be set to 0.3 * the alkaline electrolyzer's rated power.

[0146] When the alkaline electrolytic cell shutdown flag is 1, the alkaline electrolytic cell will be shut down after a preset delay period. After shutdown, the initial power allocation of the PEM electrolytic cell will be equal to min (total allocable power, rated operating power of the PEM electrolytic cell); the alkaline electrolytic cell shutdown flag will then be set to 0.

[0147] According to some embodiments, reference Figure 7 Step S13 can be implemented through steps S130 and S131.

[0148] In step S130, the preset expected operating range is obtained; after the hybrid hydrogen production array operates according to the preset execution period of the initial power allocation, the load flag information corresponding to the load increase flag and the load decrease flag is detected.

[0149] In this application, the preset execution period can be set according to the specific situation of the hybrid hydrogen production array and the actual hydrogen production needs.

[0150] According to the example embodiment, the preset expected operating range corresponding to the pre-stored PEM electrolyzer can be obtained first. After the hybrid hydrogen production array operates according to the preset execution period of the initial power allocation, the load flag information corresponding to the preset load increase flag and load decrease flag is detected to determine the specific situation of the load increase flag and load decrease flag.

[0151] In step S131, when the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the expected operating range, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to the preset power replacement calculation method to determine the final allocated power; and when the load decrease flag is 1 and the initial allocated power of the PEM electrolyzer is less than the lower limit of the expected operating range, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to the preset power replacement calculation method to determine the final allocated power.

[0152] According to the example embodiment, a pre-set and stored rate replacement calculation method can be obtained. When the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the expected operating range, the parameters that have been obtained and stored and are related to the corresponding power replacement calculation method are used to calculate the final allocated power of the PEM electrolyzer and the alkaline electrolyzer, thereby realizing power replacement.

[0153] When the load reduction flag is set to 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the desired operating range, the parameters related to the corresponding power replacement calculation method are calculated to obtain the final power allocation of the PEM electrolyzer and the alkaline electrolyzer, thereby achieving power replacement.

[0154] In some implementations, the power of the PEM electrolyzer and alkaline electrolyzer changes at a certain rate as the power increases / decreases from the initial power allocation to the final power allocation.

[0155] This application, by pre-setting a desired operating range and performing power substitution based on actual load changes (load increase or decrease) and the relationship between the current power of the electrolyzer and the desired range, ensures that the PEM electrolyzer operates within the ideal range, exhibiting good responsiveness to subsequent power increases and decreases. This improves the response speed of total power commands in hybrid hydrogen production scenarios. This dynamic adjustment capability allows the array to better adapt to load fluctuations, enhancing its flexibility and responsiveness to changes.

[0156] According to some embodiments, step S131 can be specifically implemented through the following steps: when the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the expected operating range, the initial allocated power of the PEM electrolyzer is subtracted from the upper limit according to the power replacement calculation method to determine a first difference; the first smaller value between the first difference and the adjustable power of the alkaline electrolyzer is determined, and the initial allocated power of the PEM electrolyzer is subtracted from the first smaller value to determine the final allocated power of the PEM electrolyzer; the initial allocated power of the alkaline electrolyzer is added to the first smaller value to determine the final allocated power of the alkaline electrolyzer. The final power allocation of the alkaline electrolyzer; and, when the load reduction flag is 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the desired operating range, the difference between the lower limit and the initial power allocation of the PEM electrolyzer is calculated according to the power substitution calculation method to determine a second difference value; the second smaller value between the second difference value and the adjustable power reduction amount of the alkaline electrolyzer is determined, and the second smaller value is summed with the initial power allocation of the PEM electrolyzer to determine the final power allocation of the PEM electrolyzer; the difference between the initial power allocation of the alkaline electrolyzer and the second smaller value is calculated to determine the final power allocation of the alkaline electrolyzer.

[0157] According to the example embodiment, if the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the desired operating range, the initial allocated power of the PEM electrolyzer is first subtracted from the upper limit to obtain a first difference. The smaller value between this first difference and the adjustable power increase of the alkaline electrolyzer is selected as the first smaller value. The initial allocated power of the PEM electrolyzer is subtracted from the first smaller value to obtain the final allocated power of the PEM electrolyzer. The initial allocated power of the alkaline electrolyzer is added to the first smaller value to obtain the final allocated power of the alkaline electrolyzer.

[0158] If the load reduction flag is set to 1, and the initial power allocation of the PEM electrolyzer is less than the lower limit of the desired operating range, the initial power allocation of the PEM electrolyzer is first subtracted from the lower limit to obtain a second difference. Then, the smaller value between this second difference and the adjustable power reduction of the alkaline electrolyzer is selected as the second smaller value. This second smaller value is added to the initial power allocation of the PEM electrolyzer to obtain the final power allocation of the PEM electrolyzer. Finally, the final power allocation of the alkaline electrolyzer is obtained by subtracting this second smaller value from the initial power allocation of the alkaline electrolyzer.

[0159] This application, by comparing the initial allocated power of the PEM electrolyzer with the upper and lower limits of the desired operating range, can accurately identify whether the PEM electrolyzer power needs adjustment, as well as the direction and magnitude of the adjustment. This ensures that the PEM electrolyzer operates within its optimal or near-optimal power range, thereby improving its energy efficiency and stability. During the power replacement process, not only the power adjustment requirements of the PEM electrolyzer are considered, but also the adjustable power of the alkaline electrolyzer. By calculating the smaller value between the first or second difference and the adjustable power of the alkaline electrolyzer, it can be ensured that the alkaline electrolyzer can also operate stably after the power replacement, avoiding overload or insufficient power.

[0160] The following describes an apparatus embodiment of this application, which can be used to perform the method embodiment of this application. For details not disclosed in the apparatus embodiment of this application, please refer to the method embodiment of this application.

[0161] Figure 8 This is a block diagram of a coordinated control device for hybrid hydrogen production provided in an embodiment of this application. Figure 8 As shown, the coordinated control device 800 for combined hydrogen production includes a data acquisition module 801, a load change determination module 802, a preliminary power determination module 803, and a power replacement module 804.

[0162] The data acquisition module 801 is used to acquire the allocatable total power command of the hybrid hydrogen production array and the operating data of the hybrid hydrogen production array.

[0163] The load change determination module 802 is used to determine the load change of the hybrid hydrogen production array based on the operating data and the total allocable power command.

[0164] The preliminary power determination module 803 is used to determine the preliminary power allocation and load flag information of the electrolyzer based on load changes, operating data, and the preliminary power allocation method of the electrolyzer corresponding to the load changes, so that the hybrid hydrogen production array can operate according to the preliminary power allocation; wherein, the electrolyzer includes a PEM electrolyzer and an alkaline electrolyzer;

[0165] The power replacement module 804 is used to perform power replacement between the PEM electrolyzer and the alkaline electrolyzer after the hybrid hydrogen production array has been operating according to the preset execution period of the initial power allocation. This is based on the load flag information, operating data, and the preset expected operating range corresponding to the PEM electrolyzer, so that the hybrid hydrogen production array can operate according to the determined final power allocation of the electrolyzer.

[0166] Optionally, the load change determination module 802 is specifically used for:

[0167] Based on the operating data, determine the current total power of the hybrid hydrogen production array;

[0168] The current total power and the total allocable power command are compared to determine the difference;

[0169] The load change is determined based on the difference.

[0170] Optionally, when the preliminary power determination module 803 determines the preliminary power allocation and load flag information of the electrolyzer based on load changes, operating data, and the preliminary power allocation method corresponding to the load changes, it is specifically used for:

[0171] Based on the operating data and the preset data calculation method, determine the adjustable power increase and power decrease of the PEM electrolyzer, and the adjustable power increase and power decrease of the alkaline electrolyzer.

[0172] Obtain the first current operating power of the PEM electrolyzer and the second current operating power of the alkaline electrolyzer;

[0173] Based on load changes, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the method for determining the initial power allocation, the initial power allocation and load flag information are determined.

[0174] Optionally, the load change includes load increase, load decrease, and the absolute value of the change difference corresponding to load increase or decrease; wherein, the preliminary power determination module 803, when determining the preliminary allocated power and load flag information based on the load change, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the preliminary allocated power determination method, is specifically used for:

[0175] When the load change is to an increase, the absolute value of the change difference is compared with the adjustable power of the PEM electrolyzer to determine the first comparison result;

[0176] Based on the first comparison result, the corresponding preliminary power allocation determination method is obtained, and the preliminary power allocation and load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power of the PEM electrolyzer, the adjustable power of the alkaline electrolyzer, and the absolute value of the change difference.

[0177] When the load change is a load reduction, the absolute value of the change difference is compared with the adjustable power reduction of the PEM electrolyzer to determine the second comparison result;

[0178] Based on the second comparison result, the corresponding preliminary power allocation determination method is obtained. The preliminary power allocation and load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction of the PEM electrolyzer, the adjustable power reduction of the alkaline electrolyzer, and the absolute value of the change difference.

[0179] Optionally, the preliminary power determination module 803, after obtaining the corresponding preliminary power allocation determination method based on the first comparison result, and determining the preliminary power allocation and load flag information based on the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the absolute value of the difference, is specifically used for:

[0180] Set the load increase flag to 1 and the load decrease flag to 0;

[0181] If the absolute value of the difference in the first comparison result is less than or equal to the adjustable power of the PEM electrolyzer, then the absolute value of the difference in the first current operating power is summed to determine the initial power allocation of the PEM electrolyzer, and the initial power allocation of the alkaline electrolyzer is determined as the second current operating power.

[0182] If the absolute value of the first comparison result is greater than the adjustable power of the PEM electrolyzer, then the first current operating power and the adjustable power of the PEM electrolyzer are summed to determine the initial power allocation of the PEM electrolyzer; the absolute value of the difference is subtracted from the adjustable power of the PEM electrolyzer, and the difference is compared with the adjustable power of the alkaline electrolyzer to determine the smaller value; the second current operating power and the smaller value are summed to determine the initial power allocation of the alkaline electrolyzer; if the adjustable power of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not turned on, the start-up flag of the alkaline electrolyzer is set to 1;

[0183] The information set by the load increase flag, load decrease flag, and start-up flag of the alkaline electrolyzer determines the load flag information.

[0184] Optionally, the preliminary power determination module 803, after obtaining the corresponding preliminary power allocation determination method based on the second comparison result, and determining the preliminary power allocation and load flag information according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction of the PEM electrolyzer, the adjustable power reduction of the alkaline electrolyzer, and the absolute value of the difference, is specifically used for:

[0185] Set the load increase flag to 0 and the load decrease flag to 1;

[0186] If the absolute value of the difference in the second comparison result is less than or equal to the adjustable power reduction of the PEM electrolyzer, then the absolute value of the difference in the first current operating power is summed to determine the initial power allocation of the PEM electrolyzer, and the initial power allocation of the alkaline electrolyzer is determined as the second current operating power.

[0187] If the absolute value of the difference in the second comparison result is greater than the adjustable power reduction of the PEM electrolyzer, then the difference between the first current operating power and the adjustable power reduction of the PEM electrolyzer is calculated to determine the initial power allocation of the PEM electrolyzer; the difference between the absolute value of the difference and the adjustable power reduction of the PEM electrolyzer is calculated, and the difference is compared with the adjustable power reduction of the alkaline electrolyzer to determine the smaller value; the difference between the second current power and the smaller value is calculated to determine the initial power allocation of the alkaline electrolyzer; when the adjustable power reduction of the alkaline electrolyzer is 0 and the alkaline electrolyzer is turned on, the shutdown flag of the alkaline electrolyzer is set to 1;

[0188] The information set by the load increase flag, load decrease flag, and shutdown flag of the alkaline electrolyzer determines the load flag information.

[0189] Optionally, the co-control device 800 for combined hydrogen production also includes an alkaline electrolyzer start / stop determination module 805, used for:

[0190] When the start-up flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is turned on after a preset time period, and the initial power allocation of the alkaline electrolyzer is determined as the preset minimum operating power of the alkaline electrolyzer.

[0191] The difference between the total allocable power command and the preset minimum operating power is calculated to determine the difference, and the initial allocated power of the PEM electrolyzer is determined as the difference.

[0192] Set the start-up flag of the alkaline electrolytic cell to 0;

[0193] When the shutdown flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is shut down after a preset time period. The smaller value between the total power command that can be allocated and the preset rated operating power of the PEM electrolyzer is determined, and the initial allocated power of the PEM electrolyzer is determined to be the smaller value.

[0194] Set the shutdown flag of the alkaline electrolytic cell to 0.

[0195] Optionally, the power displacement module 804 is specifically used for:

[0196] Obtain the preset desired operating range;

[0197] After the hybrid hydrogen production array operates according to the preset execution period of the initial power allocation, the load flag information corresponding to the load increase flag and the load decrease flag is detected.

[0198] When the load increase flag is set to 1 and the initial power allocation for the PEM electrolyzer is greater than the upper limit of the desired operating range, power substitution is performed between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power substitution calculation method to determine the final power allocation; and,

[0199] When the load reduction flag is set to 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the expected operating range, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to the pre-set power replacement calculation method to determine the final power allocation.

[0200] Optionally, when the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the desired operating range, the power replacement module 804 performs power replacement between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power replacement calculation method to determine the final allocated power; and when the load decrease flag is 1 and the initial allocated power of the PEM electrolyzer is less than the lower limit of the desired operating range, the power replacement module 804 performs power replacement between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power replacement calculation method to determine the final allocated power, specifically for:

[0201] When the load increase flag is 1 and the initial power allocation of the PEM electrolyzer is greater than the upper limit of the expected operating range, the initial power allocation of the PEM electrolyzer is calculated by subtracting the upper limit from the power replacement calculation method to determine the first difference.

[0202] Determine the smaller value between the first difference and the adjustable power of the alkaline electrolyzer, and calculate the difference between the initial power allocation of the PEM electrolyzer and the first smaller value to determine the final power allocation of the PEM electrolyzer.

[0203] The initial power allocation of the alkaline electrolyzer is added to a first smaller value to determine the final power allocation of the alkaline electrolyzer; and,

[0204] When the load reduction flag is 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the expected operating range, the difference between the lower limit and the initial power allocation of the PEM electrolyzer is calculated according to the power replacement calculation method to determine the second difference value.

[0205] Determine the second smaller value between the second difference and the adjustable power reduction of the alkaline electrolyzer, and sum the second smaller value with the initial power allocation of the PEM electrolyzer to determine the final power allocation of the PEM electrolyzer.

[0206] The final power allocation for the alkaline electrolyzer is determined by subtracting the initial power allocation from the second smaller value.

[0207] The device performs functions similar to those described above; other functions are described in the preceding descriptions and will not be repeated here.

[0208] Figure 9 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application, such as... Figure 9 As shown, the electronic device 900 of this embodiment may include a memory 901 and a processor 902.

[0209] The memory 901 stores a computer program, which, when executed by the processor 902, causes the processor 902 to perform the method described in the above embodiments.

[0210] The processor 902 and the memory 901 are connected, for example, via a bus.

[0211] Optionally, the electronic device 900 may also include a transceiver. It should be noted that in practical applications, the transceiver is not limited to one, and the structure of the electronic device 900 does not constitute a limitation on the embodiments of this application.

[0212] Processor 902 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 can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 902 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0213] A bus can include a pathway for transmitting information between the aforementioned components. The bus can be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, only one thick line is used in the diagram, but this does not imply that there is only one bus or one type of bus.

[0214] The memory 901 may be a ROM (Read Only Memory) or other type of static storage device capable of storing static information and instructions, RAM (Random Access Memory) or other type of dynamic storage device capable of storing information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto.

[0215] The memory 901 stores application code that executes the scheme of this application, and its execution is controlled by the processor 902. The processor 902 executes the application code stored in the memory 901 to implement the content shown in the foregoing method embodiments.

[0216] Electronic devices include, but are not limited to: mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), and in-vehicle terminals (such as in-vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Servers can also be included. Figure 9 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0217] The electronic device in this embodiment can be used to execute the method of any of the above embodiments, and its implementation principle and technical effect are similar, so they will not be described again here.

[0218] This application also provides a non-transitory computer-readable storage medium storing computer-readable instructions thereon, which, when executed by a processor, cause the processor to perform the method as described in the above embodiments.

[0219] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a non-transitory computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0220] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A synergistic control method for hybrid hydrogen production, characterized in that, include: Obtain the allocatable total power command of the hybrid hydrogen production array and the operating data of the hybrid hydrogen production array; The load variation of the hybrid hydrogen production array is determined based on the operating data and the allocable total power command. Based on the load change, the operating data, and the preliminary power allocation method for the electrolyzer corresponding to the load change, the preliminary power allocation and load flag information of the electrolyzer are determined so that the hybrid hydrogen production array operates according to the preliminary power allocation; wherein, the electrolyzer includes a PEM electrolyzer and an alkaline electrolyzer, and the preliminary power allocation method includes a pre-set calculation formula and a pre-established relevant model; After the hybrid hydrogen production array operates according to the initially allocated power for a preset execution period, based on the load flag information, the operating data, and the preset expected operating range corresponding to the PEM electrolyzer, the power of the PEM electrolyzer and the alkaline electrolyzer is swapped so that the hybrid hydrogen production array operates according to the determined final allocated power of the electrolyzer. The step of, after the hybrid hydrogen production array operates according to the initially allocated power for a preset execution period, performing power substitution between the PEM electrolyzer and the alkaline electrolyzer based on the load flag information, the operating data, and the preset expected operating range corresponding to the PEM electrolyzer, so that the hybrid hydrogen production array operates according to the determined final allocated power of the electrolyzer, includes: Obtain the preset desired operating range; After the hybrid hydrogen production array operates according to the preset execution period of the initial power allocation, the load flag information corresponding to the load increase flag and the load decrease flag is detected. When the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the desired operating range, power substitution is performed between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power substitution calculation method to determine the final allocated power; and, When the load reduction flag is 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the expected operating range, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to the preset power replacement calculation method to determine the final power allocation. The step of determining the initial power allocation and load flag information of the electrolytic cell based on the load change, the operating data, and the initial power allocation method of the electrolytic cell corresponding to the load change includes: Based on the operating data and the preset data calculation method, determine the adjustable power increase and adjustable power decrease of the PEM electrolyzer, and the adjustable power increase and adjustable power decrease of the alkaline electrolyzer. Obtain the first current operating power of the PEM electrolyzer and the second current operating power of the alkaline electrolyzer; Based on the load change, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the initial power allocation determination method, the initial power allocation and the load flag information are determined. The load change includes load increase, load decrease, and the absolute value of the difference between the load increase and the load decrease. The step of determining the preliminary power allocation and the load flag information based on the load change, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the preliminary power allocation determination method includes: When the load change is an increase, the absolute value of the change difference is compared with the adjustable power of the PEM electrolyzer to determine the first comparison result; Based on the first comparison result, the corresponding preliminary power allocation determination method is obtained, and the preliminary power allocation and the load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the absolute value of the change difference. When the load change is a load reduction, the absolute value of the change difference is compared with the adjustable power reduction of the PEM electrolyzer to determine the second comparison result; Based on the second comparison result, the corresponding preliminary power allocation determination method is obtained, and the preliminary power allocation and the load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer, and the absolute value of the change difference. The step of obtaining the corresponding preliminary power allocation determination method based on the first comparison result, and determining the preliminary power allocation and the load flag information according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the absolute value of the change difference, includes: Set the load increase flag to 1 and the load decrease flag to 0; If the absolute value of the change difference in the first comparison result is less than or equal to the adjustable power of the PEM electrolyzer, then the first current operating power and the change difference are summed to determine the initial allocated power of the PEM electrolyzer, and the initial allocated power of the alkaline electrolyzer is determined as the second current operating power. If the absolute value of the difference in the first comparison result is greater than the adjustable power of the PEM electrolyzer, then the first current operating power and the adjustable power of the PEM electrolyzer are summed to determine the initial power allocation of the PEM electrolyzer; the absolute value of the difference in ... The information of the load flag bit is determined by setting the information of the load increase flag bit, the load decrease flag bit, and the start-up flag bit of the alkaline electrolytic cell; The step of obtaining the corresponding preliminary power allocation determination method based on the second comparison result, and determining the preliminary power allocation and the load flag information according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer, and the absolute value of the change difference, includes: Set the load increase flag to 0 and the load decrease flag to 1; If the second comparison result is that the absolute value of the change difference is less than or equal to the adjustable power reduction of the PEM electrolyzer, then the first current operating power and the absolute value of the change difference are summed to determine the initial power allocation of the PEM electrolyzer, and the initial power allocation of the alkaline electrolyzer is determined as the second current operating power. If the absolute value of the difference in the second comparison result is greater than the adjustable power reduction amount of the PEM electrolyzer, then the difference between the first current operating power and the adjustable power reduction amount of the PEM electrolyzer is calculated to determine the initial power allocation of the PEM electrolyzer; the difference between the absolute value of the difference and the adjustable power reduction amount of the PEM electrolyzer is calculated, and the difference is compared with the adjustable power reduction amount of the alkaline electrolyzer to determine the smaller value; the difference between the second current operating power and the smaller value is calculated to determine the initial power allocation of the alkaline electrolyzer; when the adjustable power reduction amount of the alkaline electrolyzer is 0 and the alkaline electrolyzer is turned on, the shutdown flag of the alkaline electrolyzer is set to 1; The information set by the load increase flag, the load decrease flag, and the shutdown flag of the alkaline electrolytic cell determines the load flag information.

2. The method according to claim 1, characterized in that, The step of determining the load change of the hybrid hydrogen production array based on the operating data and the allocable total power command includes: Based on the operating data, determine the current total power of the hybrid hydrogen production array; The current total power and the allocable total power command are compared to determine the difference; The load change is determined based on the difference.

3. The method according to claim 1 or 2, characterized in that, Also includes: When the start-up flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is turned on after a preset time period, and the initial power allocation of the alkaline electrolyzer is determined as the preset minimum operating power of the alkaline electrolyzer. The difference between the total allocable power command and the preset minimum operating power is calculated to determine the difference, and the initial allocated power of the PEM electrolyzer is determined as the difference. Set the start-up flag of the alkaline electrolytic cell to 0; When the shutdown flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is shut down after the preset time period. The smaller value between the total allocable power command and the preset rated operating power of the PEM electrolyzer is determined, and the initial allocated power of the PEM electrolyzer is determined to be the smaller value. The shutdown flag of the alkaline electrolyzer is set to 0.

4. The method according to claim 1, characterized in that, When the load increase flag is 1 and the initial power allocation of the PEM electrolyzer is greater than the upper limit of the expected operating range, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to the preset power replacement calculation method to determine the final power allocation. Furthermore, when the load reduction flag is 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the desired operating range, power substitution is performed between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power substitution calculation method to determine the final power allocation, including: When the load increase flag is 1 and the initial power allocation of the PEM electrolyzer is greater than the upper limit of the expected operating range, the initial power allocation of the PEM electrolyzer is calculated by subtracting the upper limit from the power replacement calculation method to determine the first difference. Determine the smaller value between the first difference and the adjustable power of the alkaline electrolyzer, and subtract the initial power allocation of the PEM electrolyzer from the first smaller value to determine the final power allocation of the PEM electrolyzer. The initial power allocation of the alkaline electrolyzer is added to the first smaller value to determine the final power allocation of the alkaline electrolyzer; and, When the load reduction flag is 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the expected operating range, the difference between the lower limit and the initial power allocation of the PEM electrolyzer is calculated according to the power replacement calculation method to determine the second difference value. Determine the second smaller value between the second difference and the adjustable power reduction of the alkaline electrolyzer, and sum the second smaller value with the initial power allocation of the PEM electrolyzer to determine the final power allocation of the PEM electrolyzer; The final power allocation of the alkaline electrolyzer is determined by subtracting the initial power allocation from the second smaller value.

5. A coordinated control device for hybrid hydrogen production, characterized in that, include: The data acquisition module is used to acquire the allocatable total power command of the hybrid hydrogen production array and the operating data of the hybrid hydrogen production array; The load change determination module is used to determine the load change of the hybrid hydrogen production array based on the operating data and the allocable total power command. The preliminary power determination module is used to determine the preliminary power allocation and load flag information of the electrolyzer based on the load change, the operating data, and the preliminary power allocation method of the electrolyzer corresponding to the load change, so that the hybrid hydrogen production array operates according to the preliminary power allocation; wherein, the electrolyzer includes a PEM electrolyzer and an alkaline electrolyzer, and the preliminary power allocation determination method includes a pre-set calculation formula and a pre-established relevant model; The power replacement module is used to perform power replacement between the PEM electrolyzer and the alkaline electrolyzer after the hybrid hydrogen production array has been operating according to the preset execution period of the initial power allocation. This is based on the load flag information, the operating data, and the preset expected operating range corresponding to the PEM electrolyzer, so that the hybrid hydrogen production array operates according to the determined final power allocation of the electrolyzer. Specifically, the power replacement module is used for: Obtain the preset desired operating range; After the hybrid hydrogen production array operates according to the preset execution period of the initial power allocation, the load flag information corresponding to the load increase flag and the load decrease flag is detected. When the load increase flag is 1 and the initial allocated power of the PEM electrolyzer is greater than the upper limit of the desired operating range, power substitution is performed between the PEM electrolyzer and the alkaline electrolyzer according to a pre-set power substitution calculation method to determine the final allocated power; and, When the load reduction flag is 1 and the initial power allocation of the PEM electrolyzer is less than the lower limit of the expected operating range, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to the preset power replacement calculation method to determine the final power allocation. Specifically, the preliminary power determination module is used for: Based on the operating data and the preset data calculation method, determine the adjustable power increase and adjustable power decrease of the PEM electrolyzer, and the adjustable power increase and adjustable power decrease of the alkaline electrolyzer. Obtain the first current operating power of the PEM electrolyzer and the second current operating power of the alkaline electrolyzer; Based on the load change, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the initial power allocation determination method, the initial power allocation and the load flag information are determined. The load change includes load increase, load decrease, and the absolute value of the difference between the load increase and the load decrease. Specifically, the preliminary power determination module, when determining the preliminary allocated power and the load flag information based on the load change, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power decrease of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, the adjustable power decrease of the alkaline electrolyzer, and the preliminary allocated power determination method, is used for: When the load change is an increase, the absolute value of the change difference is compared with the adjustable power of the PEM electrolyzer to determine the first comparison result; Based on the first comparison result, the corresponding preliminary power allocation determination method is obtained, and the preliminary power allocation and the load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the absolute value of the change difference. When the load change is a load reduction, the absolute value of the change difference is compared with the adjustable power reduction of the PEM electrolyzer to determine the second comparison result; Based on the second comparison result, the corresponding preliminary power allocation determination method is obtained, and the preliminary power allocation and the load flag information are determined according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer, and the absolute value of the change difference. Specifically, the preliminary power determination module, based on the first comparison result, obtains the corresponding preliminary power allocation determination method, and determines the preliminary power allocation and the load flag information according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power increase of the PEM electrolyzer, the adjustable power increase of the alkaline electrolyzer, and the absolute value of the change difference. Set the load increase flag to 1 and the load decrease flag to 0; If the absolute value of the change difference in the first comparison result is less than or equal to the adjustable power of the PEM electrolyzer, then the first current operating power and the change difference are summed to determine the initial allocated power of the PEM electrolyzer, and the initial allocated power of the alkaline electrolyzer is determined as the second current operating power. If the absolute value of the difference in the first comparison result is greater than the adjustable power of the PEM electrolyzer, then the first current operating power and the adjustable power of the PEM electrolyzer are summed to determine the initial power allocation of the PEM electrolyzer; the absolute value of the difference in ... The information of the load flag bit is determined by setting the information of the load increase flag bit, the load decrease flag bit, and the start-up flag bit of the alkaline electrolytic cell; Specifically, the preliminary power determination module, based on the second comparison result, obtains the corresponding preliminary power allocation determination method, and determines the preliminary power allocation and the load flag information according to the corresponding preliminary power allocation determination method, the first current operating power, the second current operating power, the adjustable power reduction of the PEM electrolyzer, the adjustable power reduction of the alkaline electrolyzer, and the absolute value of the change difference. Set the load increase flag to 0 and the load decrease flag to 1; If the second comparison result is that the absolute value of the change difference is less than or equal to the adjustable power reduction of the PEM electrolyzer, then the first current operating power and the absolute value of the change difference are summed to determine the initial power allocation of the PEM electrolyzer, and the initial power allocation of the alkaline electrolyzer is determined as the second current operating power. If the absolute value of the difference in the second comparison result is greater than the adjustable power reduction amount of the PEM electrolyzer, then the difference between the first current operating power and the adjustable power reduction amount of the PEM electrolyzer is calculated to determine the initial power allocation of the PEM electrolyzer; the difference between the absolute value of the difference and the adjustable power reduction amount of the PEM electrolyzer is calculated, and the difference is compared with the adjustable power reduction amount of the alkaline electrolyzer to determine the smaller value; the difference between the second current operating power and the smaller value is calculated to determine the initial power allocation of the alkaline electrolyzer; when the adjustable power reduction amount of the alkaline electrolyzer is 0 and the alkaline electrolyzer is turned on, the shutdown flag of the alkaline electrolyzer is set to 1; The information set by the load increase flag, the load decrease flag, and the shutdown flag of the alkaline electrolytic cell determines the load flag information.

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