Cooperative control method and device for series-parallel hydrogen production

Abstract

The invention provides a cooperative control method and device for hybrid hydrogen production, and relates to the technical field of new energy hydrogen production. The cooperative control method for series-parallel hydrogen production comprises the following steps: acquiring a distributable total power instruction of a series-parallel hydrogen production array and operation data of the series-parallel hydrogen production array; determining the load change of the series-parallel hydrogen production array according to the operation data and the distributable total power instruction; determining preliminary distribution power and load flag bit information of the electrolytic cell according to the load change, the operation data and a preliminary distribution power determination mode of the electrolytic cell corresponding to the load change; and after the series-parallel hydrogen production array works according to the preliminary distribution power for a preset execution time period, according to the load flag bit information, the operation data and a preset expected operation interval corresponding to the PEM electrolytic cell, power replacement of the PEM electrolytic cell and the alkaline electrolytic cell is carried out, so that the series-parallel hydrogen production array works according to the determined final distribution power of the electrolytic cell.

Description

Technical Field

[0001] The present application relates to the technical field of new energy hydrogen production, for example, to a coordinated control method and device for hybrid hydrogen production. Background Art

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

[0003] In related technologies, some practical renewable energy hydrogen production projects utilize both alkaline and PEM electrolyzers, coupled on the hydrogen side to achieve hybrid hydrogen production. Currently, control of hybrid hydrogen production only involves array control of a single electrolyzer type, without coordinated control of the hybrid production. Summary of the Invention

[0004] The present application aims to provide a coordinated control method, device, electronic equipment and storage medium for hybrid hydrogen production.

[0005] According to one aspect of the present application, a collaborative control method for hybrid hydrogen production is proposed, including: obtaining an allocable total power instruction of a hybrid hydrogen production array and operating data of the hybrid hydrogen production array; determining a load change of the hybrid hydrogen production array based on the operating data and the allocable total power instruction; determining the preliminary allocated power and load flag information of the electrolyzer based on the load change, operating data and a method for determining the preliminary allocated power of the electrolyzer corresponding to the load change, so that the hybrid hydrogen production array operates according to the preliminary allocated power; wherein the electrolyzer includes a PEM electrolyzer and an alkaline electrolyzer; after the hybrid hydrogen production array operates according to a preset execution period according to the preliminary allocated power, the power of the PEM electrolyzer and the alkaline electrolyzer are replaced according to the load flag information, operating data and a preset expected operating interval corresponding to the PEM electrolyzer, so that the hybrid hydrogen production array operates according to the determined final allocated power of the electrolyzer.

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

[0007] According to some embodiments, the preliminary allocated power and load flag information of the electrolytic cell are determined based on the load change, operating data and the preliminary allocated power determination method of the electrolytic cell corresponding to the load change, including: determining the PEM electrolytic cell power increase adjustable amount and the PEM electrolytic cell power reduction adjustable amount of the PEM electrolytic cell, and the alkaline electrolytic cell power increase adjustable amount and the alkaline electrolytic cell power reduction adjustable amount of the alkaline electrolytic cell according to the operating data and a preset data calculation method; obtaining the first current operating power of the PEM electrolytic cell and the second current operating power of the alkaline electrolytic cell; 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 PEM electrolytic cell power increase adjustable amount, the PEM electrolytic cell power reduction adjustable amount, the alkaline electrolytic cell power increase adjustable amount, the alkaline electrolytic cell power reduction adjustable amount and the preliminary allocated power determination method.

[0008] According to some embodiments, the load change includes increasing the load, reducing the load, and the absolute value of the change difference corresponding to the increase or decrease of the load; wherein, according to the load change, the first current operating power, the second current operating power, the PEM electrolyzer power increase adjustable amount, the PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power increase adjustable amount, the alkaline electrolyzer power reduction adjustable amount and the preliminary power allocation determination method, the preliminary power allocation and load flag information are determined, including: when the load change is increasing the load, the absolute value of the change difference is compared with the PEM electrolyzer power increase adjustable amount to determine a first comparison result; based on the first comparison result, the corresponding preliminary power allocation determination method is obtained to determine the preliminary power allocation according to the corresponding preliminary power allocation. The preliminary power allocation and load flag information are determined based on the power determination method, the first current operating power, the second current operating power, the adjustable power increase amount of the PEM electrolyzer, the adjustable power increase amount of the alkaline electrolyzer, and the absolute value of the change difference; when the load change is load reduction, the absolute value of the change difference is compared with the adjustable power reduction amount of the PEM electrolyzer to determine a second comparison result; based on the second comparison result, the corresponding preliminary power allocation determination method is obtained to determine 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.

[0009] According to some embodiments, a corresponding preliminary power allocation determination method is obtained based on the first comparison result, so as to determine 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 PEM electrolyzer power increase adjustable amount, the alkaline electrolyzer power increase adjustable amount and the absolute value of the change difference, including: setting the load increase flag to 1 and setting the load reduction flag to 0; if the first comparison result is that the absolute value of the change difference is less than or equal to the PEM electrolyzer power increase adjustable amount, then summing the first current operating power and the absolute value of the change difference to determine the preliminary power allocation of the PEM electrolyzer, and determining the preliminary power allocation of the alkaline electrolyzer as the second current operating power; if the first comparison result is that the absolute value of the change difference is less than or equal to the PEM electrolyzer power increase adjustable amount, then summing the first current operating power and the absolute value of the change difference to determine the preliminary power allocation of the PEM electrolyzer, and determining the preliminary power allocation of the alkaline electrolyzer as the second current operating power; If the comparison result shows that the absolute value of the change difference is greater than the adjustable power increase amount of the PEM electrolyzer, the first current operating power and the adjustable power increase amount of the PEM electrolyzer are summed to determine the preliminary allocated power of the PEM electrolyzer; the absolute value of the change difference and the adjustable power increase amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power increase amount of the alkaline electrolyzer to determine the smaller value; the second current operating power and the smaller value are summed to determine the preliminary allocated power of the alkaline electrolyzer; when the adjustable power increase amount of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not turned on, the power-on flag of the alkaline electrolyzer is set to 1; and the load flag information is determined by the information set by the load increase flag, the load reduction flag, and the power-on flag of the alkaline electrolyzer.

[0010] According to some embodiments, a corresponding preliminary power allocation determination method is obtained based on the second comparison result, so as to determine 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 PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power reduction adjustable amount and the absolute value of the change difference, including: setting the load increase flag to 0 and setting the load reduction flag to 1; if the second comparison result is that the absolute value of the change difference is less than or equal to the PEM electrolyzer power reduction adjustable amount, then summing the first current operating power and the absolute value of the change difference to determine the preliminary power allocation of the PEM electrolyzer, and determining the preliminary power allocation of the alkaline electrolyzer as the second current operating power. rate; if the second comparison result is that the absolute value of the change difference is greater than the adjustable power reduction amount of the PEM electrolyzer, then the first current operating power and the adjustable power reduction amount of the PEM electrolyzer are subtracted to determine the preliminary allocated power of the PEM electrolyzer; the absolute value of the change difference and the adjustable power reduction amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power reduction amount of the alkaline electrolyzer to determine the smaller value; the second current power and the smaller value are subtracted to determine the preliminary allocated power 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 load flag information is determined by the information set by the load increase flag, the load reduction flag and the shutdown flag of the alkaline electrolyzer.

[0011] According to some embodiments, the above method also includes: when the power-on flag of the alkaline electrolyzer is 1, turning on the alkaline electrolyzer after a preset period of time, and determining the preliminary allocated power of the alkaline electrolyzer as the preset minimum operating power of the alkaline electrolyzer; subtracting the allocable total power instruction and the preset minimum operating power to determine the difference, and determining the preliminary allocated power of the PEM electrolyzer as the difference; setting the power-on flag of the alkaline electrolyzer to 0; when the power-off flag of the alkaline electrolyzer is 1, turning off the alkaline electrolyzer after a preset period of time, determining the smaller value between the allocable total power instruction and the preset PEM electrolyzer rated operating power, and determining the preliminary allocated power of the PEM electrolyzer as the smaller value; and setting the power-off 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 preliminary power allocation, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to the load flag information operation 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, including: obtaining the preset expected operating range; after the hybrid hydrogen production array operates according to the preset execution period of the preliminary power allocation, detecting the load flag information corresponding to the load increase flag and the load reduction flag; when the load increase flag is 1 and the preliminary allocated power of the PEM electrolyzer is greater than the upper limit of the expected operating range, according to the preset power replacement calculation method, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced to determine the final allocated power; and, when the load reduction flag is 1 and the preliminary allocated power of the PEM electrolyzer is less than the lower limit of the expected operating range, according to the preset power replacement calculation method, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced to determine the final allocated power.

[0013] According to some embodiments, when the load increase flag is 1 and the preliminary allocated power of the PEM electrolyzer is greater than the upper limit of the desired 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 allocated power; and, when the load reduction flag is 1 and the preliminary allocated power of the PEM electrolyzer is less than the lower limit of the desired 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 allocated power, including: when the load increase flag is 1 and the preliminary allocated power of the PEM electrolyzer is greater than the upper limit of the desired operating range, according to the power replacement calculation method, the preliminary allocated power of the PEM electrolyzer is subtracted from the upper limit to determine a first difference; determining the difference between the first difference and the power increase of the alkaline electrolyzer and a first smaller value between the adjustable power amount of the alkaline electrolyzer and the initial allocated power of the PEM electrolyzer, and subtracting the first smaller value from the initial allocated power of the PEM electrolyzer to determine the final allocated power of the PEM electrolyzer; adding the initial allocated power of the alkaline electrolyzer to the first smaller value to determine the final allocated power of the alkaline electrolyzer; and, when the load reduction flag is 1 and the initial allocated power of the PEM electrolyzer is less than the lower limit of the expected operating range, subtracting the lower limit from the initial allocated power of the PEM electrolyzer according to the power replacement calculation method to determine a second difference; determining a second smaller value between the second difference and the adjustable power reduction amount of the alkaline electrolyzer, and summing the second smaller value and the initial allocated power of the PEM electrolyzer to determine the final allocated power of the PEM electrolyzer; and subtracting the initial allocated power of the alkaline electrolyzer from the second smaller value to determine the final allocated power of the alkaline electrolyzer.

[0014] According to one aspect of the present application, a coordinated control device for parallel-parallel hydrogen production is proposed, characterized by comprising:

[0015] A data acquisition module is used to obtain the allocable total power instruction of the hybrid hydrogen production array and the operating data of the hybrid hydrogen production array;

[0016] A load change determination module, configured to determine the load change of the hybrid hydrogen production array based on the operating data and the allocable total power instruction;

[0017] A preliminary power determination module is used to determine the preliminary allocated power and load flag information of the electrolyzer based on load changes, operating data, and the preliminary allocated power determination method of the electrolyzer corresponding to the load changes, so that the hybrid hydrogen production array operates according to the preliminary allocated power; wherein the electrolyzer includes a PEM electrolyzer and an alkaline electrolyzer;

[0018] The power replacement module is used to replace the power of the PEM electrolyzer and the alkaline electrolyzer according to the load flag information, operation data and the preset expected operating range corresponding to the PEM electrolyzer after the hybrid hydrogen production array works according to the preset execution period of the preliminary allocated power, so that the hybrid hydrogen production array can work according to the final allocated power of the determined electrolyzer.

[0019] Optionally, the load change determination module is specifically configured to:

[0020] Determine the current total power of the hybrid hydrogen production array based on the operating data;

[0021] Comparing the current total power with the allocable total power command to determine the difference;

[0022] Based on the difference, the load change is determined.

[0023] Optionally, the preliminary power determination module is specifically configured to:

[0024] Determining, based on operating data and a preset data calculation method, an adjustable amount of power increase and power reduction for the PEM electrolyzer, and an adjustable amount of power increase and power reduction for the alkaline electrolyzer;

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

[0026] The preliminary allocated power and load flag information are determined based on the load change, the first current operating power, the second current operating power, the PEM electrolyzer power increase adjustable amount, the PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power increase adjustable amount, the alkaline electrolyzer power reduction adjustable amount and the preliminary allocated power determination method.

[0027] Optionally, the load change includes a load increase, a load decrease, and an absolute value of a change difference corresponding to a load increase or load decrease; wherein the preliminary power determination module, 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 PEM electrolyzer power increase adjustable amount, the PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power increase adjustable amount, the alkaline electrolyzer power reduction adjustable amount, and the preliminary allocated power determination method, is specifically configured to:

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

[0029] Obtaining a corresponding preliminary power allocation determination method based on the first comparison result, and determining 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 PEM electrolyzer power increase adjustable amount, the alkaline electrolyzer power increase adjustable amount, and the absolute value of the change difference;

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

[0031] Based on the second comparison result, the corresponding preliminary power allocation determination method is obtained to determine 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 amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer and the absolute value of the change difference.

[0032] Optionally, the preliminary power determination module obtains a corresponding preliminary allocated power determination method based on the first comparison result, and determines the preliminary allocated power and load flag information according to the corresponding preliminary allocated power determination method, the first current operating power, the second current operating power, the PEM electrolyzer power increase adjustable amount, the alkaline electrolyzer power increase adjustable amount, and the absolute value of the change difference, specifically for:

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

[0034] If the first comparison result is that the absolute value of the change difference is less than or equal to the adjustable amount of the PEM electrolyzer power increase, the first current operating power and the change difference are summed to determine the preliminary allocated power of the PEM electrolyzer, and the preliminary allocated power of the alkaline electrolyzer is determined as the second current operating power;

[0035] If the first comparison result is that the absolute value of the change difference is greater than the adjustable power increase amount of the PEM electrolyzer, the first current operating power and the adjustable power increase amount of the PEM electrolyzer are summed to determine the preliminary allocated power of the PEM electrolyzer; the change difference and the adjustable power increase amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power increase amount of the alkaline electrolyzer to determine the smaller value; the second current operating power and the smaller value are summed to determine the preliminary allocated power of the alkaline electrolyzer; if the adjustable power increase amount of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not turned on, the power on flag of the alkaline electrolyzer is set to 1;

[0036] The load flag information is determined by setting the load increase flag, the load reduction flag and the power-on flag of the alkaline electrolytic cell.

[0037] Optionally, the preliminary power determination module obtains a corresponding preliminary power allocation determination method based on the second comparison result, and determines 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 PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power reduction adjustable amount, and the absolute value of the change difference, specifically for:

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

[0039] If the second comparison result is that the absolute value of the change difference is less than or equal to the adjustable power reduction amount of the PEM electrolyzer, the first current operating power and the absolute value of the change difference are summed to determine the preliminary allocated power of the PEM electrolyzer, and the preliminary allocated power of the alkaline electrolyzer is determined as the second current operating power;

[0040] If the second comparison result shows that the absolute value of the change difference is greater than the adjustable power reduction amount of the PEM electrolyzer, the first current operating power and the adjustable power reduction amount of the PEM electrolyzer are subtracted to determine the preliminary allocated power of the PEM electrolyzer; the absolute value of the change difference and the adjustable power reduction amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power reduction amount of the alkaline electrolyzer to determine the smaller value; the second current power and the smaller value are subtracted to determine the preliminary allocated power of the alkaline electrolyzer; if 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;

[0041] The load flag information is determined by setting the load increase flag, the load reduction flag and the shutdown flag of the alkaline electrolytic cell.

[0042] Optionally, the coordinated control device for hybrid hydrogen production further includes an alkaline electrolyzer on / off determination module, which is used to:

[0043] When the power-on flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is turned on after a preset period of time, and the preliminary allocated power of the alkaline electrolyzer is determined as the preset minimum operating power of the alkaline electrolyzer; the total allocable power instruction and the preset minimum operating power are subtracted to determine the difference, and the preliminary allocated power of the PEM electrolyzer is determined as the difference; and the power-on flag of the alkaline electrolyzer is set to 0;

[0044] When the shutdown flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is shut down after a preset period of time, the smaller value between the allocable total power instruction and the preset PEM electrolyzer rated operating power is determined, and the preliminary 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 replacement module is specifically used to:

[0046] Obtain the preset expected operating range;

[0047] After the hybrid hydrogen production array operates according to the pre-set execution period of the initial power allocation, the load flag information corresponding to the load increase flag and the load reduction flag is detected;

[0048] 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 of the PEM electrolyzer and the alkaline electrolyzer are replaced according to a preset power replacement calculation method to determine the final allocated power; and

[0049] When the load reduction 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 pre-set power replacement calculation method to determine the final allocated power.

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

[0051] 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 replacement calculation method to determine a first difference;

[0052] Determining a first smaller value between the first difference and the adjustable amount of power increase of the alkaline electrolyzer, and subtracting the initial distributed power of the PEM electrolyzer from the first smaller value to determine a final distributed power of the PEM electrolyzer;

[0053] adding the preliminary distributed power of the alkaline electrolysis cell to the first smaller value to determine the final distributed power of the alkaline electrolysis cell; and,

[0054] When the load reduction flag is 1 and the initial allocated power of the PEM electrolyzer is less than the lower limit of the desired operating range, the lower limit and the initial allocated power of the PEM electrolyzer are subtracted according to the power replacement calculation method to determine a second difference;

[0055] Determining a second smaller value between the second difference and the adjustable amount of power reduction of the alkaline electrolyzer, and summing the second smaller value and the preliminary distributed power of the PEM electrolyzer to determine a final distributed power of the PEM electrolyzer;

[0056] The final distributed power of the alkaline electrolytic cell is determined by subtracting the preliminary distributed power of the alkaline electrolytic cell from the second smaller value.

[0057] According to one aspect of the present application, an electronic device is proposed, which includes: a processor; and a memory storing a computer program. When the computer program is executed by the processor, the processor executes the collaborative control method for hybrid hydrogen production as described above.

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

[0059] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application.

[0060] Beneficial effects:

[0061] Through the above-mentioned embodiments provided by the present application, the rapid response capability of the PEM electrolyzer and the large-capacity support capability of the alkaline electrolyzer can be fully utilized. By acquiring the allocable total power instruction and operating data of the hybrid hydrogen production array in real time, the load change of the hybrid array is judged, and then based on the load change and the initial power allocation determination method of the electrolyzer, preliminary power is allocated to each electrolyzer, and the PEM electrolyzer responds quickly. Then, a power replacement strategy is formulated in combination with the expected operating range of the PEM electrolyzer, and the power borne by the PEM electrolyzer is gradually transferred to the alkaline electrolyzer. Through the power replacement strategy, it is ensured that the PEM electrolyzer is in the ideal operating range, and has a good response capability when the power is subsequently increased or decreased, thereby improving the response speed of the total power instruction in the hybrid hydrogen production scenario; the replacement process is rate-limited to ensure the safety of the alkaline electrolyzer adjustment and the stability of the total power of the hybrid hydrogen production array. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without exceeding the scope of protection required by this application.

[0063] Figure 1 A flow chart of a coordinated control method for hybrid hydrogen production provided in an embodiment of the present application;

[0064] Figure 2 A flowchart for the specific implementation of step S11 provided in an embodiment of the present application;

[0065] Figure 3 A flowchart for determining the initial power allocation and load flag information of the electrolytic cell according to the load change, operating data, and the initial power allocation of the electrolytic cell corresponding to the load change in step S12 provided in the embodiment of the present application;

[0066] Figure 4 A flowchart for determining preliminary allocated power and load flag information according to load changes, the first current operating power, the second current operating power, the PEM electrolyzer power increase adjustable amount, the PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power increase adjustable amount, the alkaline electrolyzer power reduction adjustable amount, and the preliminary allocated power determination method in step S121 provided in an embodiment of the present application;

[0067] Figure 5A flowchart for a specific implementation of obtaining a corresponding preliminary power allocation determination method based on the first comparison result in step S1211 of the embodiment of the present application, and determining 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 increase amount of the PEM electrolyzer, the adjustable power increase amount of the alkaline electrolyzer, and the absolute value of the change difference;

[0068] Figure 6 A flowchart for a specific implementation of obtaining a corresponding preliminary power allocation determination method based on the second comparison result in step S1213 of the embodiment of the present application, and determining 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 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 for the specific implementation of step S13 provided in the embodiment of the present application;

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

[0071] Figure 9 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0072] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the drawings represent like or similar parts, and thus repetitive description thereof will be omitted.

[0073] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

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

[0075] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[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. Thus, the first component discussed below could be referred to as the second component without departing from the teachings of the present invention. As used herein, the term "and / or" includes any one and all combinations of one or more of the associated listed items.

[0077] For specific implementation methods, please refer to the following embodiments.

[0078] Figure 1 This is a flow chart of the coordinated control method for hybrid hydrogen production provided in the embodiment of this application. The method of this embodiment can be applied to the control server. Figure 1 As shown, the method includes: step S10, step S11, step S12 and step S13.

[0079] In step S10 , the allocable total power instruction of the parallel-parallel hydrogen production array and the operating data of the parallel-parallel hydrogen production array are obtained.

[0080] In this application, the term "hybrid hydrogen production array" may be used to refer to combining different types of hydrogen production technologies or equipment in a hybrid and parallel manner to form a comprehensive hydrogen production system. sum It can be used to indicate the total power that can be distributed during cooperative control in the current cycle. The instruction can be externally input or calculated by other systems.

[0081] The operating data of the hybrid hydrogen production array may include the current total power of the hybrid hydrogen production array, the adjustable power increase amount of the PEM electrolyzer, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power increase amount of the alkaline electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer, etc.

[0082] According to an example embodiment, the control server may receive an allocable total power instruction input by a relevant staff member, and then may obtain various operating data detected by a preset detection device on the hybrid hydrogen production array.

[0083] In step S11 , the load change of the parallel-parallel hydrogen production array is determined according to the operating data and the allocable total power instruction.

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

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

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

[0087] In the present application, a method for determining the preliminary power allocation used by the electrolytic cell corresponding to different load changes can be pre-set. This preliminary power allocation determination method can be used to preliminarily determine the power allocation data for different electrolytic cells. The load flag information can include an alkaline electrolytic cell startup flag, an alkaline electrolytic cell shutdown flag, a load increase flag, and a load reduction flag.

[0088] The method for determining the preliminary allocated power may be a pre-set calculation formula or a pre-established correlation model.

[0089] According to an example embodiment, load changes and operating data can be substituted into corresponding positions in the method for determining preliminary power allocation to obtain preliminary power allocation and load flag information for the electrolyzer. The preliminary power allocation can then be sent to the hybrid hydrogen production array for execution, and the load flag 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 preliminary allocated power, 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 final allocated power of the determined electrolyzer.

[0091] In the present application, the preset execution period can be a pre-set period that can ensure the smooth operation of the hybrid hydrogen production array at the initially allocated power. The preset expected operating range can be a pre-set power range suitable for the operation of the PEM electrolyzer. Power displacement can be used to represent the process of allocating, converting, or replacing power between different electrolyzers. The final allocated power can be used to represent the final allocated power corresponding to the PEM electrolyzer and the alkaline electrolyzer in the hybrid hydrogen production array during the current cycle.

[0092] Power replacement methods corresponding to different load flag information and operating data within different preset expected operating ranges can be pre-set. In some implementations, by matching the corresponding power replacement methods, corresponding 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 the alkaline electrolyzer. The final allocated power can then be distributed to the corresponding PEM electrolyzer and alkaline electrolyzer so that the electrolyzer can operate according to the final allocated power.

[0093] This application can give full play to the rapid response capability of the PEM electrolyzer and the large-capacity support capability of the alkaline electrolyzer. By acquiring the allocable total power instruction and operating data of the hybrid hydrogen production array in real time, the load change of the hybrid array is judged, and then based on the load change and the initial power allocation determination method of the electrolyzer, the initial power is allocated to each electrolyzer, and the PEM electrolyzer responds quickly. Then, a power replacement strategy is formulated in combination with the expected operating range of the PEM electrolyzer, and the power borne by the PEM electrolyzer is gradually transferred to the alkaline electrolyzer. Through the power replacement strategy, the PEM electrolyzer is guaranteed to be in the ideal operating range, and has a good response capability when the power is subsequently increased or decreased, thereby improving the response speed of the total power instruction in the hybrid hydrogen production scenario; the replacement process is rate-limited to ensure the safety of the alkaline electrolyzer adjustment and the stability of the total power of the hybrid hydrogen production array.

[0094] According to some embodiments, the electrolyzer comprises a PEM electrolyzer and an alkaline electrolyzer. Figure 2 , step S11 can be specifically implemented through steps S110 and S111.

[0095] In step S110 , the current total power of the parallel-parallel hydrogen production array is determined according to the operating data.

[0096] In the present 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 an example embodiment, the current power of the alkaline electrolyzer and the current power of the PEM electrolyzer are extracted from the operating data, and calculation is performed to obtain the current total power.

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

[0099] According to an exemplary embodiment, a difference is calculated between the allocable total power instruction and the current total power to obtain a difference value. If the difference value is greater than zero, it indicates that the load is increased, and if the difference value is less than zero, it indicates that the load is reduced.

[0100] This application uses this difference to determine load changes in the hybrid hydrogen production array, facilitating adjustments to the corresponding control methods and ensuring efficient and stable operation of the hydrogen production process. This dynamic adjustment mechanism not only optimizes energy distribution 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 varying power demands and operating conditions.

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

[0102] In step S120, the PEM electrolyzer's power increase adjustable amount and the PEM electrolyzer's power reduction adjustable amount, and the alkaline electrolyzer's power increase adjustable amount and the alkaline electrolyzer's power reduction adjustable amount are determined based on the operating data and a preset data calculation method.

[0103] In this application, the data calculation method can be pre-set, where:

[0104] PEM electrolyzer power adjustment amount = PEM electrolyzer rated power - PEM electrolyzer current power;

[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 amount of the alkaline electrolytic cell power increase = 0, and the adjustable amount of the alkaline electrolytic cell power reduction = 0;

[0107] When the alkaline electrolytic cell is running, the adjustable amount of the alkaline electrolytic cell power increase = the rated power of the alkaline electrolytic cell - the current power of the alkaline electrolytic cell, and the adjustable amount of the alkaline electrolytic cell power reduction = the current power of the alkaline electrolytic cell - 0.3 * the rated power of the alkaline electrolytic cell.

[0108] In some implementations, the safe operating range of a PEM electrolyzer can be preset to be 5%-100%, so the adjustable power reduction amount of the PEM electrolyzer is the current power of the PEM electrolyzer minus 0.05*the rated power of the PEM electrolyzer. The safe operating range of an alkaline electrolyzer can be preset to be 30%-100%, so when the alkaline electrolyzer is operating, the adjustable power reduction amount of the alkaline electrolyzer is the current power of the alkaline electrolyzer minus 0.3*the rated power of the alkaline electrolyzer.

[0109] According to an 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-mentioned data calculation method, the adjustable power increase amount of the PEM electrolyzer, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power increase amount of the alkaline electrolyzer, and the adjustable power reduction amount of the alkaline electrolyzer are 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; the preliminary allocated power and load flag information are determined according to the load change, the first current operating power, the second current operating power, the adjustable power increase amount of the PEM electrolyzer, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power increase amount of the alkaline electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer and the preliminary power allocation determination method.

[0111] According to an example embodiment, the current power of the PEM electrolyzer may be parsed from the operating data as the first current operating power, and the parsed current power of the alkaline electrolyzer may 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 at the current moment can be directly detected. A preliminary information determination model can be pre-set, and by inputting the load change, the first current operating power, the second current operating power, the PEM electrolyzer power increase adjustable amount, the PEM electrolyzer power decrease adjustable amount, the alkaline electrolyzer power increase adjustable amount, the alkaline electrolyzer power decrease adjustable amount, and the preliminary power allocation determination method into the preliminary information determination model, the preliminary power allocation and compliance flag information can be directly output.

[0113] This application determines the adjustable amount of power increase and power reduction of PEM electrolyzers and alkaline electrolyzers based on operating data and preset data calculation methods, and can accurately grasp the power regulation potential of the electrolyzer under different load changes. This accuracy helps to flexibly adjust the power output of the electrolyzer according to load requirements during actual operation, thereby improving the overall efficiency and response speed of the system. It can dynamically determine the initial power allocation based on real-time load changes, combined with the current operating power and adjustable power range of the electrolyzer, and then adjust the working state of the electrolyzer in real time according to changes in external conditions, thereby enhancing the dynamic adaptability and flexibility of the hybrid hydrogen production array.

[0114] According to some embodiments, the load change includes increasing the load, decreasing the load, or the absolute value of the difference between the increase and decrease in load. Figure 4 In step S121, the preliminary allocated power and load flag information are determined according to the load change, the first current operating power, the second current operating power, the PEM electrolyzer power increase adjustable amount, the PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power increase adjustable amount, the alkaline electrolyzer power reduction adjustable amount and the preliminary allocated power determination method. This can be specifically achieved through steps S1210, S1211, S1212 and S1213.

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

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

[0117] In step S1211, a corresponding preliminary power allocation determination method is obtained based on the first comparison result, so as to determine 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 PEM electrolyzer power increase adjustable amount, the alkaline electrolyzer power increase adjustable amount and the absolute value of the change difference.

[0118] In the present application, the initial allocation power determination method used under different first comparison results can be preset.

[0119] According to an 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 PEM electrolyzer power increase adjustable amount, the alkaline electrolyzer power increase adjustable amount 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 load reduction, the absolute value of the change difference is compared with the adjustable power reduction amount of the PEM electrolyzer to determine a second comparison result.

[0121] According to an 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 that the absolute value of the change difference is greater than the adjustable power reduction amount of the PEM electrolyzer, the absolute value of the change difference is less than the adjustable power reduction amount of the PEM electrolyzer, and the absolute value of the change difference is 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, so as to determine 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 amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer and the absolute value of the change difference.

[0123] In the present application, the initial allocation power determination method used under different second comparison results can be preset.

[0124] According to an 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 monitors the load changes in real time, and based on the current operating power of the PEM electrolyzer and the alkaline electrolyzer and the adjustable power increase and decrease, it can quickly and accurately determine the initial distribution power of the electrolyzer, ensuring that the hybrid hydrogen production array can quickly adjust to the optimal working state when facing load fluctuations. In the case of increasing or decreasing the load, by comparing the current operating power with the adjustable power increase and decrease of the electrolyzer, the most appropriate power distribution strategy can be intelligently selected, which can maximize the use of the power regulation capability of the electrolyzer while ensuring the stable operation of hydrogen production, thereby improving the overall energy efficiency. By introducing load flag information, the flexibility of the hydrogen production process is further improved. The load flag information can reflect the load status of the hybrid hydrogen production array in real time, providing an important basis for subsequent power adjustment 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, so as to determine 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 PEM electrolyzer power increase adjustable amount, the alkaline electrolyzer power increase adjustable amount and the absolute value of the change difference. Specifically, the preliminary power allocation and load flag information can be determined through steps S12110, S12111, S12112 and S12113.

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

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

[0129] According to an example embodiment, if the first comparison result is that the absolute value of the change difference is less than or equal to the adjustable power increase amount of the PEM electrolyzer, the first current operating power and the absolute value of the change difference can be added as the preliminary allocated power of the PEM electrolyzer. There is no need to control the alkaline electrolyzer and maintain its second current operating power unchanged, that is, the second current operating power is used as the preliminary allocated power of the alkaline electrolyzer.

[0130] In step S12112, if the first comparison result is that the absolute value of the change difference is greater than the adjustable power increase amount of the PEM electrolyzer, the first current operating power and the adjustable power increase amount of the PEM electrolyzer are summed to determine the preliminary allocated power of the PEM electrolyzer; the absolute value of the change difference and the adjustable power increase amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power increase amount of the alkaline electrolyzer to determine the smaller value; the second current operating power and the smaller value are summed to determine the preliminary allocated power of the alkaline electrolyzer; when the adjustable power increase amount of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not turned on, the power-on flag of the alkaline electrolyzer is set to 1.

[0131] According to an exemplary embodiment, if the absolute value of the change difference is greater than the adjustable power increase value of the PEM electrolyzer, the first current operating power and the adjustable power increase value of the PEM electrolyzer are added together to form the preliminary allocated power for the PEM electrolyzer. The PEM electrolyzer adjustable power increase value is subtracted from the absolute value of the change difference to obtain a difference. The smaller of this difference and the adjustable power increase value of the alkaline electrolyzer is extracted and added to the second current operating power to obtain the preliminary allocated power for the alkaline electrolyzer. If the adjustable power increase value 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 load flag information is determined by setting the load increase flag, the load reduction flag, and the power-on flag of the alkaline electrolytic cell.

[0133] According to an exemplary embodiment, the specific setting contents (0 / 1) of the load increase flag and the load reduction flag in step S12110 and the power-on flag of the alkaline electrolytic cell in step S12112 are collectively determined as load flag information.

[0134] In the present application, when the absolute value of the change difference is less than the adjustable power increase amount of the PEM electrolyzer, only the power of the PEM electrolyzer is increased to meet the load demand. The residual power adjustment capability of the PEM electrolyzer can be efficiently utilized to avoid unnecessary power waste, while ensuring that the PEM electrolyzer operates in an optimal or near-optimal state. When the absolute value of the change difference is greater than the adjustable power increase amount of the PEM electrolyzer, the PEM electrolyzer is first made to reach its maximum adjustable power, and then the residual load change amount is calculated and allocated to the alkaline electrolyzer. This distribution method ensures that the load change can be effectively shared by all available resources in the hybrid hydrogen production array. When the adjustable power increase amount of the alkaline electrolyzer is 0 and it is not turned on, the technical strategy can intelligently identify this state and trigger the startup operation of the alkaline electrolyzer. At the same time, by correctly setting the load increase flag and the load reduction flag, 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, so as to determine 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 PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power reduction adjustable amount and the absolute value of the change difference. This can be specifically achieved through steps S12130, S12131, S12132 and S12133.

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

[0137] In step S12131, if the second comparison result is that the absolute value of the change difference is less than or equal to the adjustable power reduction amount of the PEM electrolyzer, the first current operating power and the change difference are summed to determine the preliminary allocated power of the PEM electrolyzer, and the preliminary allocated power of the alkaline electrolyzer is determined to be the second current operating power unchanged.

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

[0139] In step S12132, if the second comparison result is that the absolute value of the change difference is greater than the adjustable power reduction amount of the PEM electrolyzer, the first current operating power and the adjustable power reduction amount of the PEM electrolyzer are subtracted to determine the preliminary allocated power of the PEM electrolyzer; the absolute value of the change difference and the adjustable power reduction amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power reduction amount of the alkaline electrolyzer to determine the smaller value; the second current power and the smaller value are subtracted to determine the preliminary allocated power of the alkaline electrolyzer.

[0140] According to an exemplary embodiment, if the absolute value of the change difference is greater than the adjustable power reduction amount for the PEM electrolyzer, the adjustable power reduction amount is subtracted from the first current operating power to obtain a preliminary allocated power for the PEM electrolyzer. The PEM electrolyzer adjustable power reduction amount is subtracted from the absolute value of the change difference to obtain a difference, and the smaller of the difference and the adjustable power reduction amount for the alkaline electrolyzer is determined as the smaller value. This smaller value is then subtracted from the second current power to obtain the preliminary allocated power for the alkaline electrolyzer.

[0141] In step S12133, the load flag information is determined by setting the load increase flag, the load reduction flag, and the shutdown flag of the alkaline electrolytic cell.

[0142] According to an exemplary embodiment, the specific setting contents (0 / 1) of the load increase flag and the load reduction flag in step S12130 and the shutdown flag of the alkaline electrolytic cell in step S12132 are collectively determined as load flag information.

[0143] In this application, when the absolute value of the change difference is less than the adjustable amount of power reduction of the PEM electrolyzer, only the power of the PEM electrolyzer is selected to adapt to the load reduction. When the absolute value of the change difference is greater than the adjustable amount of power reduction of the PEM electrolyzer, the PEM electrolyzer is first reduced to its minimum allowed power, and then the remaining load that needs to be reduced 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 amount of power reduction of the alkaline electrolyzer is 0 and it is turned on, this state can be intelligently identified and the shutdown operation of the alkaline electrolyzer is triggered, which can not only optimize the energy efficiency of the hybrid hydrogen production array, but also extend the service life of the alkaline electrolyzer and reduce maintenance costs.

[0144] According to some embodiments, the power on and off conditions of the alkaline electrolyzer can also be determined, which can be specifically achieved through the following steps: when the power on flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is turned on after a preset period of time, and the preliminary allocated power of the alkaline electrolyzer is determined to be the preset minimum operating power of the alkaline electrolyzer; the difference between the allocable total power instruction and the preset minimum operating power is determined to determine the difference, and the preliminary allocated power of the PEM electrolyzer is determined to be the difference; the power on flag of the alkaline electrolyzer is set to 0; when the power off flag of the alkaline electrolyzer is 1, the alkaline electrolyzer is turned off after a preset period of time, the smaller value between the allocable total power instruction and the preset PEM electrolyzer rated operating power is determined, and the preliminary allocated power of the PEM electrolyzer is determined to be the smaller value; and the power off flag of the alkaline electrolyzer is set to 0.

[0145] In some implementations, the alkaline electrolyzer power-on and power-off conditions can be determined. When the alkaline electrolyzer power-on flag is 1, the alkaline electrolyzer is powered on after a preset delay. After power-on, the alkaline electrolyzer's initial allocated power is equal to the alkaline electrolyzer's minimum operating power. The initial allocated power for the PEM electrolyzer is equal to the total allocable power minus the alkaline electrolyzer's minimum operating power. The alkaline electrolyzer power-on flag is then set to 0. Based on the alkaline electrolyzer's preset safe operating range, the preset minimum operating power can be set to 0*the alkaline electrolyzer's rated power.

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

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

[0148] In step S130, a preset expected operating range is obtained; after the hybrid hydrogen production array operates according to the preset execution period according to the preliminary power allocation, the load flag information corresponding to the load increase flag and the load reduction 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 demand for hydrogen production.

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

[0151] In step S131, when the load increase flag is 1 and the preliminary allocated power of the PEM electrolyzer is greater than the upper limit of the desired 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 allocated power; and, when the load reduction flag is 1 and the preliminary allocated power of the PEM electrolyzer is less than the lower limit of the desired 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 allocated power.

[0152] According to an 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 related to the corresponding power replacement calculation method that have been obtained and stored are used for calculation to obtain the final allocated power corresponding to the PEM electrolyzer and the alkaline electrolyzer, thereby realizing power replacement.

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

[0154] In some implementations, the power of the PEM electrolyzer or the alkaline electrolyzer changes at a certain rate when increasing / decreasing from the initial allocated power to the final allocated power.

[0155] This application presets a desired operating range and performs power substitution based on actual load changes (load increase or decrease) and the relationship between the current electrolyzer power and the desired range. This ensures that the PEM electrolyzer is within the ideal operating range and has good responsiveness when subsequently increasing or decreasing power, thereby improving the response speed of the total power command in the hybrid hydrogen production scenario. This dynamic adjustment capability enables the array to better adapt to load fluctuations, improving the array's flexibility and responsiveness to changes.

[0156] According to some embodiments, step S131 can be specifically implemented by 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 desired 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; determine a first smaller value between the first difference and the adjustable amount of power increase of the alkaline electrolyzer, and subtract the initial allocated power of the PEM electrolyzer from the first smaller value to determine the final allocated power of the PEM electrolyzer; add the initial allocated power of the alkaline electrolyzer to the first smaller value to determine the final allocated power of the alkaline electrolyzer. and, when the load reduction flag is 1 and the preliminary allocated power of the PEM electrolyzer is less than the lower limit of the expected operating range, subtracting the lower limit from the preliminary allocated power of the PEM electrolyzer in accordance with the power replacement calculation method to determine a second difference; determining a second smaller value between the second difference and the adjustable amount of power reduction of the alkaline electrolyzer, and summing the second smaller value and the preliminary allocated power of the PEM electrolyzer to determine the final allocated power of the PEM electrolyzer; and subtracting the preliminary allocated power of the alkaline electrolyzer from the second smaller value to determine the final allocated power of the alkaline electrolyzer.

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

[0158] If the load reduction flag is 1 and the PEM electrolyzer's initial allocated power is less than the lower limit of the desired operating range, the initial allocated power is subtracted from the lower limit to obtain a second difference. The smaller of this second difference and the adjustable power reduction amount for the alkaline electrolyzer is then selected as the second minimum value. This second minimum value is added to the initial allocated power of the PEM electrolyzer to obtain the final allocated power of the PEM electrolyzer. The final allocated power of the alkaline electrolyzer is obtained by subtracting this second minimum value from the initial allocated power of the alkaline electrolyzer.

[0159] By comparing the initial allocated power of the PEM electrolyzer with the upper and lower limits of the expected operating range, the present application can accurately identify whether the power of the PEM electrolyzer needs to be adjusted, as well as the direction and amplitude of the adjustment, thereby ensuring that the PEM electrolyzer operates within the 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 taken into account, but also the power adjustable amount of the alkaline electrolyzer is fully considered. By calculating the smaller value between the first difference or the second difference and the power adjustable amount 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 the present application, which can be used to perform the method embodiment of the present application. For details not disclosed in the apparatus embodiment of the present application, reference can be made to the method embodiment of the present application.

[0161] Figure 8 This is a block diagram of a coordinated control device for hybrid hydrogen production provided in an embodiment of the present application. Figure 8 As shown, the coordinated control device 800 for hybrid 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 obtain the allocable total power instruction 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 allocable total power instruction;

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

[0165] The power replacement module 804 is used to replace the power of the PEM electrolyzer and the alkaline electrolyzer according to the load flag information, operating data and the preset expected operating range corresponding to the PEM electrolyzer after the hybrid hydrogen production array works according to the preset execution period of the preliminary allocated power, so that the hybrid hydrogen production array can work according to the final allocated power of the determined electrolyzer.

[0166] Optionally, the load change determination module 802 is specifically configured to:

[0167] Determine the current total power of the hybrid hydrogen production array based on the operating data;

[0168] Comparing the current total power with the allocable total power command to determine the difference;

[0169] Based on the difference, the load change is determined.

[0170] Optionally, the preliminary power determination module 803 is specifically configured to:

[0171] Determining, based on operating data and a preset data calculation method, an adjustable amount of power increase and power reduction for the PEM electrolyzer, and an adjustable amount of power increase and power reduction for the alkaline electrolyzer;

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

[0173] The preliminary allocated power and load flag information are determined based on the load change, the first current operating power, the second current operating power, the PEM electrolyzer power increase adjustable amount, the PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power increase adjustable amount, the alkaline electrolyzer power reduction adjustable amount and the preliminary allocated power determination method.

[0174] Optionally, the load change includes a load increase, a load decrease, and an absolute value of a change difference corresponding to a load increase or load 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 PEM electrolyzer power increase adjustable amount, the PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power increase adjustable amount, the alkaline electrolyzer power reduction adjustable amount, and the preliminary allocated power determination method, is specifically configured to:

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

[0176] Obtaining a corresponding preliminary power allocation determination method based on the first comparison result, and determining 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 PEM electrolyzer power increase adjustable amount, the alkaline electrolyzer power increase adjustable amount, and the absolute value of the change difference;

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

[0178] Based on the second comparison result, the corresponding preliminary power allocation determination method is obtained to determine 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 amount of the PEM electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer and the absolute value of the change difference.

[0179] Optionally, the preliminary power determination module 803 obtains a corresponding preliminary allocated power determination method based on the first comparison result, and determines the preliminary allocated power and load flag information according to the corresponding preliminary allocated power determination method, the first current operating power, the second current operating power, the PEM electrolyzer power increase adjustable amount, the alkaline electrolyzer power increase adjustable amount, and the absolute value of the change difference, specifically for:

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

[0181] If the first comparison result is that the absolute value of the change difference is less than or equal to the adjustable amount of the PEM electrolyzer power increase, then summing the first current operating power and the absolute value of the change difference to determine the preliminary allocated power of the PEM electrolyzer, and determining the preliminary allocated power of the alkaline electrolyzer as the second current operating power;

[0182] If the first comparison result is that the absolute value of the change difference is greater than the adjustable power increase amount of the PEM electrolyzer, the first current operating power and the adjustable power increase amount of the PEM electrolyzer are summed to determine the preliminary allocated power of the PEM electrolyzer; the absolute value of the change difference and the adjustable power increase amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power increase amount of the alkaline electrolyzer to determine the smaller value; the second current operating power and the smaller value are summed to determine the preliminary allocated power of the alkaline electrolyzer; if the adjustable power increase amount of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not turned on, the power on flag of the alkaline electrolyzer is set to 1;

[0183] The load flag information is determined by setting the load increase flag, the load reduction flag and the power-on flag of the alkaline electrolytic cell.

[0184] Optionally, the preliminary power determination module 803 obtains a corresponding preliminary allocated power determination method based on the second comparison result, and determines the preliminary allocated power and load flag information according to the corresponding preliminary allocated power determination method, the first current operating power, the second current operating power, the PEM electrolyzer power reduction adjustable amount, the alkaline electrolyzer power reduction adjustable amount, and the absolute value of the change difference, specifically for:

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

[0186] If the second comparison result is that the absolute value of the change difference is less than or equal to the adjustable power reduction amount of the PEM electrolyzer, the first current operating power and the absolute value of the change difference are summed to determine the preliminary allocated power of the PEM electrolyzer, and the preliminary allocated power of the alkaline electrolyzer is determined as the second current operating power;

[0187] If the second comparison result shows that the absolute value of the change difference is greater than the adjustable power reduction amount of the PEM electrolyzer, the first current operating power and the adjustable power reduction amount of the PEM electrolyzer are subtracted to determine the preliminary allocated power of the PEM electrolyzer; the absolute value of the change difference and the adjustable power reduction amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power reduction amount of the alkaline electrolyzer to determine the smaller value; the second current power and the smaller value are subtracted to determine the preliminary allocated power of the alkaline electrolyzer; if 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;

[0188] The load flag information is determined by setting the load increase flag, the load reduction flag and the shutdown flag of the alkaline electrolytic cell.

[0189] Optionally, the coordinated control device 800 for parallel-parallel hydrogen production further includes an alkaline electrolyzer on / off determination module 805, which is configured to:

[0190] When the power-on flag of the alkaline electrolytic cell is 1, the alkaline electrolytic cell is turned on after a preset period of time, and the initial allocated power of the alkaline electrolytic cell is determined as the preset minimum operating power of the alkaline electrolytic cell;

[0191] subtracting the allocable total power command from the preset minimum operating power to determine a difference, and determining the preliminary allocated power of the PEM electrolyzer as the difference;

[0192] Set the power-on flag of the alkaline electrolyzer to 0;

[0193] When the shutdown flag of the alkaline electrolyzer is 1, shut down the alkaline electrolyzer after a preset period of time, determine the smaller value between the allocable total power instruction and the preset rated operating power of the PEM electrolyzer, and determine the initial allocated power of the PEM electrolyzer as the smaller value;

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

[0195] Optionally, the power replacement module 804 is specifically configured to:

[0196] Obtain the preset expected operating range;

[0197] After the hybrid hydrogen production array operates according to the pre-set execution period of the initial power allocation, the load flag information corresponding to the load increase flag and the load reduction flag is detected;

[0198] 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 of the PEM electrolyzer and the alkaline electrolyzer are replaced according to a preset power replacement calculation method to determine the final allocated power; and

[0199] When the load reduction 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 pre-set power replacement calculation method to determine the final allocated power.

[0200] Optionally, when the load increase flag is 1 and the preliminary 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 of the PEM electrolyzer and the alkaline electrolyzer according to a preset power replacement calculation method to determine the final allocated power; and when the load reduction flag is 1 and the preliminary allocated power of the PEM electrolyzer is less than the lower limit of the desired operating range, the power replacement of the PEM electrolyzer and the alkaline electrolyzer is performed according to a preset power replacement calculation method to determine the final allocated power, specifically for:

[0201] 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 replacement calculation method to determine a first difference;

[0202] Determining a first smaller value between the first difference and the adjustable amount of power increase of the alkaline electrolyzer, and subtracting the initial distributed power of the PEM electrolyzer from the first smaller value to determine a final distributed power of the PEM electrolyzer;

[0203] adding the preliminary distributed power of the alkaline electrolysis cell to the first smaller value to determine the final distributed power of the alkaline electrolysis cell; and,

[0204] When the load reduction flag is 1 and the initial allocated power of the PEM electrolyzer is less than the lower limit of the desired operating range, the lower limit and the initial allocated power of the PEM electrolyzer are subtracted according to the power replacement calculation method to determine a second difference;

[0205] Determining a second smaller value between the second difference and the adjustable amount of power reduction of the alkaline electrolyzer, and summing the second smaller value and the preliminary distributed power of the PEM electrolyzer to determine a final distributed power of the PEM electrolyzer;

[0206] The final distributed power of the alkaline electrolytic cell is determined by subtracting the preliminary distributed power of the alkaline electrolytic cell from the second smaller value.

[0207] The device performs functions similar to the method provided above. For other functions, please refer to the previous description and will not be repeated here.

[0208] Figure 9 A schematic diagram of the structure of an electronic device provided in an embodiment of the present 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. When the computer program is executed by the processor 902, the processor 902 executes the method in the above embodiment.

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

[0211] Optionally, the electronic device 900 may further include a transceiver. It should be noted that in actual applications, the number of transceivers is not limited to one, and the structure of the electronic device 900 does not constitute a limitation on the embodiments of the present 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 may 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 computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0213] A bus may include a path that transmits information between the components mentioned above. A bus may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, for example. Buses can be categorized as address buses, data buses, and control buses. For ease of illustration, the diagram uses only a single thick line, but this does not imply that there is only one bus or only one type of bus.

[0214] The memory 901 can be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.

[0215] The memory 901 is used to store application code for executing the solution of the present application, and the execution is controlled by the processor 902. The processor 902 is used to execute the application code stored in the memory 901 to implement the content shown in the above method embodiment.

[0216] The electronic devices include, but are not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), and in-vehicle terminals (e.g., in-vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Servers and the like are also possible. Figure 9 The electronic device shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0217] The electronic device of this embodiment can be used to execute the method of any of the above embodiments. Its implementation principles and technical effects are similar and will not be described in detail here.

[0218] The present application also provides a non-transitory computer-readable storage medium having computer-readable instructions stored thereon. When the aforementioned instructions are executed by a processor, the processor executes the method in the above embodiment.

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

[0220] The embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the method and core ideas of the present application. At the same time, changes or modifications made by those skilled in the art based on the ideas of the present application, the specific implementation methods, and the scope of application of the present application, all fall within the scope of protection of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. A coordinated control method for hybrid hydrogen production, characterized in that: include: Obtaining the allocable total power instruction of the hybrid hydrogen production array and the operation data of the hybrid hydrogen production array; Determining a load change of the hybrid hydrogen production array according to the operating data and the allocable total power instruction; According to the load change, the operation data and the initial allocated power determination method of the electrolyzer corresponding to the load change, the initial allocated power and load flag information of the electrolyzer are determined, so that the hybrid hydrogen production array operates according to the initial allocated power; wherein the electrolyzer includes a PEM electrolyzer and an alkaline electrolyzer; After the hybrid hydrogen production array operates according to the preset execution period of the preliminary allocated power, the power of the PEM electrolyzer and the alkaline electrolyzer is replaced according to 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.

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

3. The method according to claim 1, characterized in that The method of determining the preliminary power allocation of the electrolytic cell according to the load change, the operation data and the preliminary power allocation of the electrolytic cell corresponding to the load change, and determining the preliminary power allocation and load flag information of the electrolytic cell, comprises: Determining, according to the operating data and a preset data calculation method, an adjustable amount of power increase of the PEM electrolyzer and an adjustable amount of power reduction of the PEM electrolyzer, and an adjustable amount of power increase of the alkaline electrolyzer and an adjustable amount of power reduction of the alkaline electrolyzer; Obtaining a first current operating power of the PEM electrolyzer and a second current operating power of the alkaline electrolyzer; The preliminary allocated power and the load flag information are determined according to the load change, the first current operating power, the second current operating power, the adjustable power increase amount of the PEM electrolyzer, the adjustable power reduction amount of the PEM electrolyzer, the adjustable power increase amount of the alkaline electrolyzer, the adjustable power reduction amount of the alkaline electrolyzer and the method for determining the preliminary allocated power.

4. The method according to claim 3, characterized in that The load change includes load increase, load reduction, and the absolute value of the change difference corresponding to the load increase or load reduction; Wherein, the determining of the preliminary allocated power and the load flag information according to the load change, the first current operating power, the second current operating power, the adjustable amount of the PEM electrolyzer power increase, the adjustable amount of the PEM electrolyzer power reduction, the adjustable amount of the alkaline electrolyzer power increase, the adjustable amount of the alkaline electrolyzer power reduction and the preliminary allocated power determination method includes: In the case where the load change is a load increase, the absolute value of the change difference is compared with the adjustable amount of the PEM electrolyzer power increase to determine a first comparison result; Based on the first comparison result, the corresponding preliminary power allocation determination method is obtained, so as to determine 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 amount of the PEM electrolyzer, the adjustable power increase amount of the alkaline electrolyzer, and the absolute value of the change difference; In the case where the load change is load reduction, comparing the absolute value of the change difference with the adjustable power reduction amount of the PEM electrolyzer to determine a second comparison result; Based on the second comparison result, the corresponding method for determining the preliminary allocated power is obtained, so as to determine the preliminary allocated power and the load flag information according to the corresponding method for determining the preliminary allocated power, 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.

5. The method according to claim 4, characterized in that The method of obtaining the corresponding preliminary power allocation determination method based on the first comparison result, so as to determine 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 amount of the PEM electrolyzer, the adjustable power increase amount of the alkaline electrolyzer, and the absolute value of the change difference, includes: Set the load increase flag to 1 and the load reduction flag to 0; If the first comparison result is that the absolute value of the change difference is less than or equal to the adjustable power increase amount of the PEM electrolyzer, the first current operating power and the change difference are summed to determine the preliminary allocated power of the PEM electrolyzer, and the preliminary allocated power of the alkaline electrolyzer is determined as the second current operating power; If the first comparison result is that the absolute value of the change difference is greater than the adjustable power increase amount of the PEM electrolyzer, the first current operating power and the adjustable power increase amount of the PEM electrolyzer are summed to determine the initial allocated power of the PEM electrolyzer; the absolute value of the change difference and the adjustable power increase amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power increase amount of the alkaline electrolyzer to determine the smaller value; the second current operating power and the smaller value are summed to determine the initial allocated power of the alkaline electrolyzer; when the adjustable power increase amount of the alkaline electrolyzer is 0 and the alkaline electrolyzer is not turned on, the power-on flag of the alkaline electrolyzer is set to 1; The load flag information is determined by setting the load increase flag, the load reduction flag and the power-on flag of the alkaline electrolytic cell.

6. The method according to claim 4, characterized in that The method of obtaining the corresponding preliminary power allocation determination method based on the second comparison result, so as to determine 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 reduction 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 amount of the PEM electrolyzer, the first current operating power and the absolute value of the change difference are summed to determine the preliminary allocated power of the PEM electrolyzer, and the preliminary allocated power of the alkaline electrolyzer is determined as the second current operating power; If the second comparison result is that the absolute value of the change difference is greater than the adjustable power reduction amount of the PEM electrolyzer, then the first current operating power and the adjustable power reduction amount of the PEM electrolyzer are subtracted to determine the initial allocated power of the PEM electrolyzer; the absolute value of the change difference and the adjustable power reduction amount of the PEM electrolyzer are subtracted, and the difference is compared with the adjustable power reduction amount of the alkaline electrolyzer to determine the smaller value; the second current power and the smaller value are subtracted to determine the initial allocated power 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 load flag information is determined by setting information of the load increase flag, the load reduction flag and the shutdown flag of the alkaline electrolytic cell.

7. The method according to any one of claims 1 to 6, characterized in that: Also includes: When the power-on flag of the alkaline electrolytic cell is 1, the alkaline electrolytic cell is turned on after a preset period of time, and the initial allocated power of the alkaline electrolytic cell is determined as the preset minimum operating power of the alkaline electrolytic cell; Subtracting the allocable total power instruction from the preset minimum operating power to determine a difference, and determining the initial allocated power of the PEM electrolyzer as the difference; Setting the power-on 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 period of time, the smaller value between the allocable total power instruction and the preset PEM electrolyzer rated operating power 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.

8. The method according to claim 1, characterized in that After the hybrid hydrogen production array works according to the preset execution period of the preliminary power allocation, the power of the PEM electrolyzer and the alkaline electrolyzer are replaced according to the load flag information, the operation data and the preset expected operation interval corresponding to the PEM electrolyzer, so that the hybrid hydrogen production array works according to the determined final allocation power of the electrolyzer, including: Obtaining the preset expected operating range; After the hybrid hydrogen production array works according to the preliminary power allocation for a preset execution period, detecting the load flag information corresponding to the load increase flag and the load reduction flag respectively; 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 are replaced according to a preset power replacement calculation method to determine the final allocated power; and When the load reduction 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 a pre-set power replacement calculation method to determine the final allocated power.

9. The method according to claim 8, characterized in that 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 are replaced according to a preset power replacement calculation method to determine the final allocated power; And, when the load reduction 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 are replaced according to a preset power replacement 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 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; Determine a first smaller value between the first difference and the adjustable amount of power increase of the alkaline electrolyzer, and make a difference between the preliminary distributed power of the PEM electrolyzer and the first smaller value to determine the final distributed power of the PEM electrolyzer; adding the preliminary allocated power of the alkaline electrolytic cell to the first smaller value to determine the final allocated power of the alkaline electrolytic cell; and, When the load reduction flag is 1 and the initial allocated power of the PEM electrolyzer is less than the lower limit of the expected operating range, the lower limit and the initial allocated power of the PEM electrolyzer are subtracted according to the power replacement calculation method to determine a second difference; Determining a second smaller value between the second difference and the adjustable amount of power reduction of the alkaline electrolyzer, and summing the second smaller value and the preliminary allocated power of the PEM electrolyzer to determine a final allocated power of the PEM electrolyzer; The final distributed power of the alkaline electrolytic cell is determined by subtracting the preliminary distributed power of the alkaline electrolytic cell from the second smaller value.

10. A coordinated control device for hybrid hydrogen production, characterized in that: include: A data acquisition module, used to acquire the allocable total power instruction of the hybrid hydrogen production array and the operation data of the hybrid hydrogen production array; A load change determination module, used to determine the load change of the hybrid hydrogen production array according to the operation data and the allocable total power instruction; A preliminary power determination module, used to determine the preliminary allocated power and load flag information of the electrolyzer according to the load change, the operation data and the preliminary allocated power determination method of the electrolyzer corresponding to the load change, so that the hybrid hydrogen production array operates according to the preliminary allocated power; wherein the electrolyzer includes a PEM electrolyzer and an alkaline electrolyzer; A power replacement module is used to replace the power of the PEM electrolyzer and the alkaline electrolyzer according to the load flag information, the operating data and the preset expected operating range corresponding to the PEM electrolyzer after the hybrid hydrogen production array works according to the preset execution period of the preliminary allocated power, so that the hybrid hydrogen production array works according to the determined final allocated power of the electrolyzer.

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