Multi-electrolytic cell series-parallel hydrogen production control method and renewable energy power complementary power generation system

Abstract

The embodiment of the invention provides a multi-electrolytic cell series-parallel hydrogen production control method and a renewable energy source electricity complementary power generation system. The method comprises the steps that electrolysis power parameters of a plurality of electrolytic cells and the real-time power generation power of a power generation system are obtained, and the electrolysis power parameters comprise the rated minimum electrolysis power and the rated electrolysis power; and according to the multiple electrolysis power parameters and the real-time generated power, the multiple electrolysis cells are controlled to execute electrolysis starting and stopping operation in a segmented and balanced power distribution mode according to the power size. On the basis, the embodiment of the invention can comprehensively optimize the operation details of each electrolytic cell through a segmented balanced distribution strategy, so that the utilization rate and hydrogen production of renewable energy sources can be effectively improved, the energy consumption rate is reduced, the load performance of each electrolytic cell is balanced, the service life of the electrolytic cell is prolonged, and the system reliability is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of water electrolysis hydrogen production, and in particular to a multi-electrolyzer hybrid hydrogen production control method and a renewable energy electric complementary power generation system. Background Art

[0002] The depletion of traditional fossil energy sources has led to numerous environmental problems that have directly impacted human survival and development. In today's world of abundant renewable energy and the advancement of energy technology, more and more people are focusing on the efficient development of clean energy. Hydrogen, as a representative of secondary clean energy, continues to grow and develop. Water electrolysis, particularly renewable energy-based hydrogen production, has garnered global attention for its potential to reduce carbon dioxide emissions and produce clean, green hydrogen. In large-scale renewable energy-based water electrolysis hydrogen production systems, the power rating of a single electrolyzer is limited, so multiple electrolyzers are necessary in large-scale high-voltage electrical projects to accommodate the associated renewable energy. Therefore, advanced control strategies are crucial for multiple electrolyzers.

[0003] The disadvantage of the existing technology is that it does not utilize the rated minimum electrolysis power threshold, resulting in the situation where some wind power is not utilized, resulting in a large amount of energy waste. The existing technology often causes the electrolyzer to operate below the rated minimum power threshold, which increases the risk of gas cross-permeation and may cause safety hazards such as explosions. When the wind power drops below 25% of the rated capacity, the current density decreases and the hydrogen concentration in the oxygen increases, which may exceed the safety threshold of 4%, forcing the electrolyzer to shut down. Without additional energy storage devices, this will lead to insufficient utilization of renewable energy and reduce the overall hydrogen production efficiency. Although the existing technology takes into account the rated minimum hydrogen production power constraint of the electrolyzer, it does not take into account the problem of load balancing between electrolyzers, which is not conducive to improving the overall life of the hydrogen production system and increases the overall system maintenance cost. Summary of the Invention

[0004] The embodiments of the present invention provide a multi-electrolyzer hybrid hydrogen production control method and a renewable energy electric complementary power generation system, which can comprehensively optimize the operating details of each electrolyzer through a segmented balanced allocation strategy, which can not only effectively improve the utilization rate and hydrogen production of renewable energy and reduce energy consumption rate, but also balance the load performance of each electrolyzer, extend the life of the electrolyzer, and improve system reliability.

[0005] In a first aspect, an embodiment of the present invention provides a method for controlling hydrogen production by connecting multiple electrolyzers in parallel, comprising:

[0006] Obtaining electrolysis power parameters of multiple electrolytic cells and real-time power generation of the power generation system, wherein the electrolysis power parameters include a rated minimum electrolysis power and a rated electrolysis power;

[0007] According to the plurality of electrolysis power parameters and the real-time power generation, the plurality of electrolytic cells are controlled to perform electrolysis start and stop operations by evenly distributing power in sections according to power size.

[0008] In some embodiments, controlling the plurality of electrolytic cells to perform electrolysis start and stop operations by evenly distributing power in sections according to power size includes:

[0009] Compare the target round startup output power with the rated minimum electrolysis power of the target electrolytic cell to obtain the target round startup result;

[0010] When the target round startup result is that the target round startup output power is greater than or equal to the rated minimum electrolysis power of the N target electrolytic cells, the target round startup output power is evenly distributed to the N target electrolytic cells, the N target electrolytic cells are controlled to start and perform electrolysis work, and the corresponding electrolytic cells are controlled to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolytic cells;

[0011] When the target round startup result is that the target round startup output power is less than the rated minimum electrolysis power of N target electrolytic cells, it is determined whether the target round startup output power is greater than the rated minimum electrolysis power of N-1 target electrolytic cells;

[0012] If the judgment is yes, that is, the target round startup output power is greater than the rated minimum electrolysis power of the N-1 target electrolytic cells, the target round startup output power is evenly distributed to the N-1 target electrolytic cells, the N-1 target electrolytic cells are controlled to start and perform electrolysis work, and the corresponding electrolytic cells are controlled to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolytic cells;

[0013] If the judgment is no, that is, the target round startup output power is less than the rated minimum electrolysis power of N-1 target electrolytic cells, then determine whether the target round startup output power is greater than the rated minimum electrolysis power of N-2 target electrolytic cells;

[0014] This process is repeated until it is determined whether the target round startup output power is greater than the rated minimum electrolysis power of one target electrolytic cell.

[0015] If the answer is yes, then one target electrolytic cell is controlled to start performing electrolysis work, and the corresponding electrolytic cell is controlled to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolytic cell;

[0016] If the judgment is no, then based on the target position sequence of this target electrolytic cell, the corresponding electrolytic cell is controlled to stop performing the electrolysis work and perform the next electrolysis start-stop operation.

[0017] In some embodiments, the controlling of the plurality of electrolytic cells to perform electrolysis start and stop operations by evenly distributing power in sections according to power size based on the plurality of electrolysis power parameters and the real-time generated power includes:

[0018] According to the electrolysis power parameters of the plurality of electrolytic cells, performing a segmented balanced power allocation operation on the real-time power generation of the power generation system in sequence to obtain an initial wind power allocation array;

[0019] Performing a simulated annealing operation on the initial wind power allocation array to obtain an optimal solution for wind power array allocation;

[0020] According to the optimal solution for the wind power array allocation, the plurality of electrolytic cells are controlled to perform electrolytic cell start and stop operations in sequence.

[0021] In some embodiments, performing a simulated annealing operation on the initial wind power allocation array to obtain an optimal solution for wind power array allocation includes:

[0022] Initializing simulated annealing algorithm parameters, including initial temperature, cooling rate, minimum annealing temperature, initial wind power array of multiple electrolyzers that are evenly distributed according to power size, and optimal solution for wind power array distribution;

[0023] Set the annealing temperature;

[0024] When the annealing temperature is greater than the minimum annealing temperature, randomly rotating the working order of each electrolytic cell in the initial wind power array of multiple electrolytic cells that have been evenly distributed according to power size, and determining whether to accept the new wind power array and the optimal solution for wind power array allocation obtained after the random rotation using the Metropolis criterion;

[0025] When the new wind power array and the optimal solution for wind power array allocation obtained after random rotation are accepted, the annealing temperature is cooled;

[0026] When the annealing temperature is less than or equal to the minimum annealing temperature, the optimal solution for wind power distribution at this time is output.

[0027] In some embodiments, after controlling the plurality of electrolyzers to sequentially perform electrolyzer start and stop operations according to the optimal solution for the wind power array allocation, the method further includes:

[0028] Performing a segmented balanced power allocation operation on the target round startup output power in sequence to obtain an initial wind power allocation array;

[0029] Perform simulated annealing on the initial wind power allocation array to obtain the optimal solution for wind power array allocation;

[0030] According to the optimal solution for wind power array allocation, multiple electrolyzers are controlled to perform electrolyzer start and stop operations in sequence.

[0031] In some embodiments, after controlling the plurality of electrolyzers to sequentially perform electrolyzer start and stop operations according to the optimal solution for the wind power array allocation, the method further includes:

[0032] Performing a segmented balanced power allocation operation on the target round startup output power in sequence to obtain an initial wind power allocation array;

[0033] Perform simulated annealing on the initial wind power allocation array to obtain the optimal solution for wind power array allocation;

[0034] According to the optimal solution for wind power array allocation, multiple electrolyzers are controlled to perform electrolyzer start and stop operations in sequence.

[0035] In a second aspect, an embodiment of the present invention further provides a renewable energy complementary power generation system, characterized by comprising:

[0036] A multi-electrolyzer hybrid hydrogen production module, the multi-electrolyzer hybrid hydrogen production module is used to execute the multi-electrolyzer hybrid hydrogen production control method according to any one of claims 1 to 5, and to provide energy for electrolyzing water to produce hydrogen according to the multi-electrolyzer hybrid hydrogen production control method;

[0037] A renewable energy power generation module, used to provide energy for the multi-electrolyzer hybrid hydrogen production module;

[0038] A power storage module, used to store excess electrical energy from the renewable energy power generation module;

[0039] The power generation control module is used to control the renewable energy power generation module, provide electrical energy to the multi-electrolyzer hybrid hydrogen production module, and control the power storage module to balance the overload power of the multi-electrolyzer hybrid hydrogen production module; the power generation control module is respectively connected to the multi-electrolyzer hybrid hydrogen production module, the renewable energy module and the power storage module.

[0040] In some embodiments, further comprising:

[0041] A hydrogen storage module, used to store the hydrogen energy generated by the multi-electrolyzer hybrid hydrogen production module, the hydrogen storage module being connected to the multi-electrolyzer hybrid hydrogen production module and the power generation control module respectively;

[0042] The hydrogen power generation module is used to burn the hydrogen energy in the hydrogen storage module to provide electrical energy. The hydrogen power generation module is connected to the hydrogen storage module and the power generation control module respectively.

[0043] In some embodiments, further comprising:

[0044] The power storage module is also used to maintain the energy fluctuation balance of the renewable energy complementary power generation system by storing excess electric energy, and to store the generated excess electric energy and release it when needed.

[0045] In some embodiments, the power storage module is also used to maintain the energy fluctuation balance of the wind-solar hybrid power generation system by storing excess electrical energy, and to store excess electrical energy and release it when needed, specifically:

[0046] When the power generated by the renewable energy generation module is lower than a preset threshold, the power storage module can discharge to provide voltage, thereby maintaining a constant voltage of the power transmission grid;

[0047] When the power generated by the renewable energy power generation module is higher than a preset threshold, charging the power storage module is equivalent to a load, thereby maintaining a constant grid voltage.

[0048] In a third aspect, an embodiment of the present invention further provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the multi-electrolyzer hybrid hydrogen production control method as described in the first aspect.

[0049] According to the embodiment of the present invention, a multi-electrolyzer hybrid hydrogen production control method and a renewable energy complementary power generation system are provided, wherein the multi-electrolyzer hybrid hydrogen production control method includes: obtaining the electrolysis power parameters of multiple electrolyzers and the real-time power generation power of the power generation system, the electrolysis power parameters include the rated minimum electrolysis power and the rated electrolysis power; according to the multiple electrolysis power parameters and the real-time power generation power, controlling the multiple electrolyzers to perform electrolysis start and stop operations in a segmented and balanced power distribution according to the power size. Based on this, the embodiment of the present invention can comprehensively optimize the operating details of each electrolyzer through a segmented balanced distribution strategy, which can not only effectively improve the utilization rate and hydrogen production of renewable energy, reduce the energy consumption rate, but also make the load performance of each electrolyzer balanced, extend the life of the electrolyzer, and improve the reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a flow chart of a multi-electrolyzer hybrid hydrogen production control method provided by one embodiment of the present invention;

[0051] Figure 2 Schematic diagram of a method for performing electrolysis start-stop operations by sequentially and segmentally distributing power evenly across multiple electrolytic cells according to an embodiment of the present invention;

[0052] Figure 3 This is a flow chart of performing electrolysis start-stop operations by evenly distributing power in sections according to power size, provided by one embodiment of the present invention;

[0053] Figure 4is a flow chart of a simulated annealing algorithm provided by one embodiment of the present invention;

[0054] Figure 5 This is a flow chart of a method for controlling hydrogen production by balancing power distribution in sections according to power size using a simulated annealing algorithm for multiple electrolyzers provided by one embodiment of the present invention;

[0055] Figure 6 This is a flow chart of an embodiment of the present invention providing a method for performing electrolysis start and stop operations by allocating power evenly in sections according to power size using a simulated annealing algorithm for multiple electrolytic cells.

[0056] Figure 7 This is a schematic diagram of a periodic cycle strategy provided by an embodiment of the present invention;

[0057] Figure 8 This is a structural diagram of a renewable energy complementary power generation system provided by one embodiment of the present invention;

[0058] Figure 9 This is a structural diagram of a renewable energy complementary power generation system provided by another embodiment of the present invention. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps shown or described may be performed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and so on, used in the specification, claims, and accompanying drawings are used to distinguish similar items and are not necessarily intended to describe a specific sequence or precedence.

[0061] In the embodiments of the present invention, words such as "further," "exemplarily," or "optionally" are used to indicate examples, illustrations, or explanations and should not be interpreted as being more preferred or advantageous over other embodiments or designs. The use of words such as "further," "exemplarily," or "optionally" is intended to present related concepts in a concrete manner.

[0062] In order to more conveniently describe the working principle of the embodiment of the present invention later, an introduction to relevant technical scenarios is first given below.

[0063] First, some terms involved in this invention are analyzed:

[0064] Electrolytic Cell: An electrolytic cell is a device used to perform the electrolysis process, where a chemical reaction is induced by applying an electric current through an electrolyte. It consists of an anode and a cathode separated by an electrolyte solution, which facilitates the movement of ions during the electrolysis process.

[0065] Overload refers to a situation where the current, power, or load on electrical equipment or systems exceeds their rated operating capacity for a given period of time. This can occur for a short period of time (a transient overload) or for an extended period. Overload can cause equipment performance degradation, damage, or pose a safety risk.

[0066] A load is the current, power, or energy absorbed by a device, appliance, or circuit connected to a power system. The load is the terminal at which the power system delivers power, through which electrical energy is converted into the required work, heat, or other forms of energy.

[0067] The depletion of traditional fossil energy sources has led to numerous environmental problems that have directly impacted human survival and development. In today's world of abundant renewable energy and the advancement of energy technology, more and more people are focusing on the efficient development of clean energy. Hydrogen, as a representative of secondary clean energy, continues to grow and develop. Water electrolysis, particularly renewable energy-based hydrogen production, has garnered global attention for its potential to reduce carbon dioxide emissions and produce clean, green hydrogen. In large-scale renewable energy-based water electrolysis hydrogen production systems, the power rating of a single electrolyzer is limited, so multiple electrolyzers are necessary in large-scale high-voltage electrical projects to accommodate the associated renewable energy. Therefore, advanced control strategies are crucial for multiple electrolyzers.

[0068] The disadvantage of the existing technology is that it does not utilize the rated minimum electrolysis power threshold, resulting in the situation where some wind power is not utilized, resulting in a large amount of energy waste. The existing technology often causes the electrolyzer to operate below the rated minimum power threshold, which increases the risk of gas cross-permeation and may cause safety hazards such as explosions. When the wind power drops below 25% of the rated capacity, the current density decreases and the hydrogen concentration in the oxygen increases, which may exceed the safety threshold of 4%, forcing the electrolyzer to shut down. Without additional energy storage devices, this will lead to insufficient utilization of renewable energy and reduce the overall hydrogen production efficiency. Although the existing technology takes into account the rated minimum hydrogen production power constraint of the electrolyzer, it does not take into account the problem of load balancing between electrolyzers, which is not conducive to improving the overall life of the hydrogen production system and increases the overall system maintenance cost.

[0069] Based on this, the present invention provides a multi-electrolyzer hybrid hydrogen production control method and renewable energy complementary power generation system based on an unsupervised industrial large-scale model. The multi-electrolyzer hybrid hydrogen production control method includes: obtaining the electrolysis power parameters of multiple electrolyzers and the real-time power generation of the power generation system, and then controlling the multiple electrolyzers to perform electrolysis start and stop operations in a segmented and balanced manner according to the multiple electrolysis power parameters and the real-time power generation. Before controlling the multiple electrolyzers to perform electrolysis start and stop operations in a segmented and balanced manner according to the power size, a simulated annealing operation can be performed on the power arrays of the multiple electrolyzers that distribute power in a segmented and balanced manner according to the power size, thereby optimizing the working order of the multiple electrolyzers. In addition, each time the electrolysis start-stop operation is performed with the power evenly distributed in sections according to the power size, the target round startup output power is compared with the rated minimum electrolysis power of the (N, N-1, ..., 1) target electrolytic cells. When the target round startup output power is greater than or equal to the rated minimum electrolysis power of the (N, N-1, ..., 1) target electrolytic cells, the target round startup output power is evenly distributed among the (N, N-1, ..., 1) target electrolytic cells, and the (N, N-1, ..., 1) target electrolytic cells are controlled to start and perform electrolysis work, and the corresponding electrolytic cells are controlled to perform the next electrolysis start-stop operation based on the target position sequence of the target electrolytic cells. When the target round startup output power is less than the rated minimum electrolysis power of the (N, N-1, ..., 1) target electrolytic cells, it is further determined whether the target round startup output power is greater than the rated minimum electrolysis power of the (N-1, ..., 1) target electrolytic cells. If so, the target round startup output power is increased between (N-1, ..., 1) and (N-1, ..., 1) target electrolytic cells. ,1) target electrolyzers are evenly distributed among them, then (N-1,...,1) target electrolyzers are controlled in turn to start and perform electrolysis work, and the corresponding electrolyzers are controlled to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolyzers; if the judgment is no, then continue to judge whether the target round startup output power is greater than the rated minimum electrolysis power of (N-2,...,1) target electrolyzers; and so on, until continue to judge whether the target round startup output power is greater than the rated minimum electrolysis power of 1 target electrolyzer; if the judgment is yes, then control 1 target electrolyzer to start and perform electrolysis work, and control the corresponding electrolyzer to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolyzers; if the judgment is no, then control the corresponding electrolyzer to stop performing electrolysis work based on the target position sequence of this target electrolyzer, and perform the next electrolysis start and stop operation; thereby improving the hydrogen production efficiency and flexibility of multiple electrolyzers in the hydrogen production power generation system, and improving the stability and service life of the hydrogen production power generation system.

[0070] Specifically, taking four electrolytic cells with the same rated electrolysis power as an example (the electrolytic cells are named in sequence: EL1, EL2, EL3, and EL4), when the target round startup output power is greater than or equal to the rated minimum electrolysis power of the four electrolytic cells (usually 25% of the rated electrolysis power), the target round startup output power is evenly distributed among the four electrolytic cells (each electrolytic cell can at least exceed the rated minimum electrolysis power and can start the operation of all electrolytic cells), then the four electrolytic cells are controlled to start and perform electrolysis work, and the corresponding electrolytic cells are controlled based on the target position sequence of the target electrolytic cell to perform the next electrolysis start and stop operation; if the target round startup output power is less than the rated minimum electrolysis power of the four electrolytic cells, then it is continued to determine whether the target round startup output power is greater than the rated minimum electrolysis power of the three electrolytic cells; if it is determined that the target round startup output power is evenly distributed among the three electrolytic cells, then the three electrolytic cells are controlled in sequence to start and perform electrolysis work (start EL1, EL2, and EL3), and based on the target position sequence of the target electrolytic cell, the target position sequence of the target electrolytic cell is controlled to start and stop the next electrolysis. The target position sequence controls the electrolytic cell corresponding to the target electrolytic cell to perform the next electrolysis start-stop operation; if the judgment is no, then continue to judge whether the target round startup output power is greater than the rated minimum electrolysis power of the two target electrolytic cells; if the judgment is yes, the target round startup output power is evenly distributed between the two electrolytic cells, then the two electrolytic cells are controlled in turn to start and perform electrolysis work (start EL1 and EL2), and the corresponding electrolytic cell is controlled to perform the next electrolysis start-stop operation based on the target position sequence of the target electrolytic cell; if the judgment is no, then continue to judge whether the target round startup output power is greater than the rated minimum electrolysis power of one target electrolytic cell; if the judgment is yes, the target round startup output power is all allocated to electrolytic cell EL1, then electrolytic cell EL1 is controlled to start and perform electrolysis work, and the corresponding electrolytic cell is controlled to perform the next electrolysis start-stop operation based on the target position sequence of the target electrolytic cell; if the judgment is no, then the corresponding electrolytic cell is controlled to stop performing electrolysis work based on the target position sequence of this target electrolytic cell, and the next electrolysis start-stop operation is performed.

[0071] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0072] Reference Figure 1 As shown, Figure 1 This is a flow chart of a multi-electrolyzer hybrid hydrogen production control method provided by an embodiment of the present invention. The multi-electrolyzer hybrid hydrogen production control method may include but is not limited to steps S110 to S120.

[0073] Step S110: Obtain electrolysis power parameters of multiple electrolytic cells and the real-time power generation power of the power generation system; the electrolysis power parameters include the rated minimum electrolysis power and the rated electrolysis power.

[0074] Specifically, in the process of obtaining the electrolysis power parameters of multiple electrolytic cells, the rated electrolysis powers of the multiple electrolytic cells can be the same or different. For example, if there are 4 electrolytic cells, the rated electrolysis powers of the 4 electrolytic cells can all be 0.5MW, or two of the electrolytic cells can be 0.5MW and the other two can be 1.5MW.

[0075] Step S120: Based on multiple electrolysis power parameters and real-time power generation, control multiple electrolytic cells to perform electrolysis start and stop operations by evenly distributing power in sections according to power size.

[0076] Specifically, refer to Figure 2 As shown, take 4 electrolytic cells with the same rated electrolytic power as an example (the 4 electrolytic cells are named EL1, EL2, EL3, and EL4 in sequence). Figure 2 It is a schematic diagram of the method for performing electrolysis start-stop operation by allocating power in sections in a balanced manner provided by the present invention. It should be noted that the target round start output power is P ele,m , the rated minimum electrolysis power of the target electrolytic cell is P ele,min , the power of electrolytic cells EL1, EL2, EL3, and EL4 is P1 ele 、P2 ele 、P3 ele 、P4 ele If the current wind power output is less than the minimum working power of the four electrolyzers, that is, P ele,m <4×P ele,min There are four situations: If P ele <P ele,min When , all four electrolytic cells are in shutdown state, such as Figure 2 (a) shown; if P ele,min ≤P ele,m <2×P ele,min When only EL1 is in production, the rest of the electrolyzers are in shutdown state. At this time, all the wind power is allocated to EL1, that is, P1 ele =P ele,m ,like Figure 2 (b) shown; if 2×P ele,min ≤P ele,m <3×P ele,min When , EL1 and EL2 are in production state, and the other electrolyzers are in shutdown state, the wind power is evenly distributed between EL1 and EL2, that is, P1 ele =P2 ele =P ele,m / 2, such as Figure 2 (c) shows: If 3×P ele,min ≤P ele,m <4×P ele,minWhen only EL4 is in shutdown state, and the rest of the electrolyzers are in production state, the wind power is evenly distributed among EL1, EL2, and EL3, that is, P1 ele =P2 ele =P3 ele =P ele,m / 3, such as Figure 2 (d) shows: If P ele,m ≥4×P ele,min When all four electrolyzers are in production, the equal power distribution condition is met and the wind power is evenly distributed among the electrolyzers, that is, P1 ele =P2 ele =P3 ele =P4 ele =P ele,m / 4, such as Figure 2 (e) shown.

[0077] Reference Figure 3 As shown, Figure 3 The present invention provides Figure 1 The flowchart of performing the electrolysis start-stop operation in step S120 of the embodiment of the present invention by evenly distributing power in sections according to power size, the electrolysis start-stop operation may include but is not limited to steps S310 to S370.

[0078] Step S310: Compare the target round startup output power with the rated minimum electrolysis power of the target electrolytic cell to obtain the target round startup result.

[0079] It should also be noted that the total number of electrolytic cells is N, and the rated electrolytic power of the working electrolytic cell is P ele .

[0080] Step S320: When the target round startup result is that the target round startup output power is greater than or equal to the rated minimum electrolysis power of the N target electrolytic cells, the target round startup output power is evenly distributed to the N target electrolytic cells, and the N target electrolytic cells are controlled to start and perform electrolysis work, and the corresponding electrolytic cells are controlled based on the target position sequence of the target electrolytic cells to perform the next electrolysis start and stop operation.

[0081] Step S330: When the target round startup result is that the target round startup output power is less than the rated minimum electrolysis power of N target electrolytic cells, it is determined whether the target round startup output power is greater than the rated minimum electrolysis power of N-1 target electrolytic cells.

[0082] Specifically, when the target round starts output power P ele,m Less than the rated minimum electrolysis power P of N target electrolytic cells ele,min When the target round starts, the output power P is determined. ele,mIs it greater than the rated minimum electrolysis power P of N-1 target electrolytic cells? ele,min .

[0083] Step S340: If the target round startup output power is greater than the rated minimum electrolysis power of N-1 target electrolytic cells, the target round startup output power is evenly distributed to the N-1 target electrolytic cells. Control N-1 target electrolytic cells to start and perform electrolysis work, and control the corresponding electrolytic cells to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolytic cells.

[0084] Specifically, when the target round starts output power P ele,m Greater than the rated minimum electrolysis power P of N-1 target electrolytic cells ele,min When the target round starts and the output power round is evenly distributed to N-1 target electrolyzers Control N-1 target electrolytic cells to start and perform electrolysis work (i.e., the working electrolytic cells are EL1, EL2, ... ELN-1), and control the corresponding electrolytic cells to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolytic cells.

[0085] Step S350: If the judgment is no, that is, the target round startup output power is less than the rated minimum electrolysis power of N-1 target electrolytic cells, then determine whether the target round startup output power is greater than the rated minimum electrolysis power of N-2 target electrolytic cells.

[0086] Specifically, when the target round starts output power P ele,m Less than the rated minimum electrolysis power P of N-1 target electrolytic cells ele,min , then determine the target round start output power P ele,m Is it greater than the rated minimum electrolysis power P of N-2 target electrolytic cells? ele,min . And so on.

[0087] Step S360: If the judgment is yes, when the target round startup output power is greater than the rated minimum electrolysis power of one target electrolytic cell, the target round startup output power round is allocated to electrolytic cell EL1, and one target electrolytic cell is controlled to start and perform electrolysis work (that is, the working electrolytic cell is EL1), and the corresponding electrolytic cell is controlled based on the target position sequence of the target electrolytic cell to perform the next electrolysis start and stop operation.

[0088] Specifically, when the target round starts output power P ele,m Greater than the rated minimum electrolysis power P of one target electrolytic cell ele,min , then the target round of starting output power is allocated to electrolyzer EL1 (P1 ele =Pele,m ), control the target electrolytic cell EL1 to start performing electrolysis work, and control the corresponding electrolytic cell to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolytic cell.

[0089] Step S370: If the judgment is no, when the target round startup output power is less than the rated minimum electrolysis power of one target electrolytic cell, the corresponding electrolytic cell is controlled to stop performing electrolysis work based on the target position sequence of the target electrolytic cell (that is, all working electrolytic cells in the previous position sequence are closed), and the next electrolysis start-stop operation is performed.

[0090] Specifically, when the target round starts output power P ele,m Less than the rated minimum electrolysis power P of one target electrolytic cell ele,min , based on the target position sequence of the target electrolytic cell EL1, the corresponding electrolytic cell is controlled to stop performing the electrolysis work and perform the next electrolysis start-stop operation.

[0091] Reference Figure 4 As shown, Figure 4 4 is a flow chart of the simulated annealing algorithm provided by the present invention. The simulated annealing operation may include but is not limited to steps S410 to S450.

[0092] Step S410: Initializing the parameters of the simulated annealing algorithm, including the initial temperature, cooling rate, minimum temperature, the initial wind power array of the multiple electrolyzers that is evenly distributed according to power size, and the optimal solution for the wind power array distribution.

[0093] It should be noted that the initial temperature is T0, the cooling rate is k, and the minimum annealing temperature is T c , the initial temperature is greater than the minimum temperature, that is, T0>T c , the initial wind power array of multiple electrolyzers after segmented and balanced distribution according to power size is P current,wind , the optimal solution for wind power array allocation is P best,wind , the initial optimal solution P best,wind =P current,wind .

[0094] Step S420: setting the annealing temperature.

[0095] It should be noted that the annealing temperature at this time is T tem , the annealing temperature is the initial temperature, that is, T tem =T0(T0>T c ).

[0096] Step S430: Randomly rotate the operating order of the electrolyzers in the initial wind power array, which has been evenly distributed by power level, and use the Metropolis criterion to determine whether to accept the new wind power array and the optimal solution for wind power array allocation obtained after the random rotation. If the new wind power array is not accepted, proceed to Step 3; otherwise, proceed to the next step.

[0097] Specifically, for P current,wind The working order of each electrolyzer is randomly rotated, and the Metropolis criterion is used to determine whether to accept the new wind power array P new,wind and the optimal solution P for wind power array allocation best,wind If the new wind power array P is not accepted new,wind , go to step 3, otherwise go to the next step.

[0098] It should be noted that, using vector X t =[x1,x2,x3,x4] represents the working order of the four electrolytic cells after each time step t, and the initial state is X1 = [EL1,EL2,EL3,EL4]. best,wind is the objective function value after the rotation ends. In the initial state, P best,wind =P current,wind .

[0099] The number of permutations from a given rotation pattern after each time step t Randomly select one of them as the new working order, and finally get the new wind power array P with the total time step T rotated new,wind The Metropolis criterion is used to determine whether to accept a new wind power array and the optimal solution for allocating wind power arrays:

[0100] Δf1=f1(P new,wind )-f1(P current,wind ) (1)

[0101] If Δf1≥0, the new wind power array P is not accepted. new,wind , maintain the initial wind power array P current,wind constant.

[0102] If Δf1<0, then rand <exp(-Δf1 / kT tem ) accepts a new wind power array, where rand is a random number uniformly distributed in the interval (0,1). If a new wind power array is accepted, the initial wind power array is set equal to the new wind power array, that is, P current,wind =P new,wind If the new wind power array is not accepted, the initial wind power array P is maintained.current，wind constant.

[0103] If f1(P new,wind ) <f1(P best,wind ), then let the optimal solution of wind power array allocation be equal to the new wind power array, that is, P best,wind =P new,wind Otherwise, keep the optimal solution P of the original wind power array allocation best,wind constant.

[0104] Step S440: annealing and cooling, cooling at the annealing temperature.

[0105] Specifically, the annealing temperature is equal to the annealing temperature of the previous step multiplied by the cooling rate, that is, T tem =k×T tem .

[0106] Step S450: If the annealing temperature is greater than the minimum annealing temperature, go to step 2; otherwise, the algorithm ends and outputs the optimal solution for wind power allocation at this time.

[0107] Specifically, if T tem >T c , go to step 2, otherwise, the algorithm ends and outputs the optimal solution P for wind power allocation at this time best,wind .

[0108] Reference Figure 5 As shown, Figure 5 This is a flow chart of a method for controlling hydrogen production by distributing power evenly in sections according to power size in multiple electrolyzers based on a simulated annealing algorithm provided by the present invention. The electrolysis start and stop operation may include but is not limited to steps S510 to S520.

[0109] Step S510: Obtain electrolysis power parameters of multiple electrolytic cells and the real-time power generation power of the power generation system; the electrolysis power parameters include the rated minimum electrolysis power and the rated electrolysis power.

[0110] Specifically, in the process of obtaining the electrolysis power parameters of multiple electrolytic cells, the rated electrolysis powers of the multiple electrolytic cells can be the same or different. For example, if there are 4 electrolytic cells, the rated electrolysis powers of the 4 electrolytic cells can all be 0.5MW, or two of the electrolytic cells can be 0.5MW and the other two can be 1.5MW.

[0111] Step S520: Based on the electrolysis power parameters of the multiple electrolytic cells, perform a segmented balanced power allocation operation on the real-time power generation power of the power generation system in sequence to obtain an initial wind power allocation array, then perform a simulated annealing operation on the initial wind power allocation array to obtain an optimal solution for the wind power array allocation, and then control the multiple electrolytic cells to perform electrolytic cell start and stop operations in sequence based on the optimal solution for the wind power array allocation.

[0112] Specifically, taking four electrolyzers with a rated electrolysis power of 0.5MW as an example, the rated minimum electrolysis power is 0.125MW, and the real-time power generation power at a certain time step is 0.25MW. After performing the piecewise balanced power allocation operation on the real-time power generation power, the power allocated to electrolyzers EL1 and EL2 is 0.125MW, and the power of electrolyzers EL3 and EL4 is 0. At this time, the initial wind power allocation array for this time step is [0.125 0.125 0 0]. The initial wind power allocation array [0.125 0.125 0 0] for this time step is subjected to simulated annealing operation, and the optimal solution for the wind power array allocation for this time step may be [0.125 0 0.125 0], [0 0 0.125 0.125], and other possible position rotations. After performing the segmented balanced power allocation operation on all time steps T of the real-time power generation, the initial wind power allocation array P is obtained. current,wind , and then allocate the initial wind power array P current,wind Perform simulated annealing to obtain the optimal solution P for wind power array allocation. best,wind , and then according to the optimal solution P for wind power array allocation best,wind , control multiple electrolytic cells to perform electrolytic cell start and stop operations in sequence.

[0113] In actual operation, the imbalance of working time between electrolyzers will accelerate the aging of the multi-electrolyzer hybrid hydrogen production module, resulting in the need for early replacement or maintenance of some electrolyzers, and even leading to interruption of the production process. By simulated annealing operation, the wind power rotation order of the initial wind power allocation array is changed to obtain the optimal solution P for wind power array allocation. best,wind , thereby asynchronously performing electrolysis load balancing operations, allowing each electrolyzer to operate under similar external conditions, thereby reducing the risk of system module performance degradation due to unbalanced working time and improving the stability and durability of the system module.

[0114] Reference Figure 6 As shown, Figure 6 The present invention provides Figure 5After step S520 in [description], a flowchart of electrolysis start-stop operations that perform power segmentation and equal distribution based on the simulated annealing algorithm for multiple electrolyzers according to power magnitude. The electrolysis start-stop operations may include, but are not limited to, steps S610 to S630.

[0115] Step S610: Perform sequential segmented equal power distribution operations on the starting output power of the target round to obtain an initial wind power distribution array.

[0116] Specifically, for the starting output power P of the target round ele,m Perform sequential segmented equal power distribution operations to obtain an initial wind power distribution array P current,wind .

[0117] Step S620: Perform simulated annealing operations on the initial wind power distribution array to obtain the optimal solution for wind power array distribution.

[0118] Specifically, for the initial wind power distribution array P current,wind Perform simulated annealing operations to obtain the optimal solution P for wind power array distribution best,wind .

[0119] Step S630: Control multiple electrolyzers to perform electrolyzer start-stop operations sequentially according to the optimal solution of wind power array distribution.

[0120] Specifically, according to the optimal solution P of wind power array distribution best,wind , control multiple electrolyzers to perform electrolyzer start-stop operations sequentially.

[0121] Aiming at the problem that the prior art fails to consider both the importance of the rated minimum electrolysis power threshold and the load balance between electrolyzers, the technical solution of the new optimization scheduling strategy proposed by the present invention combines the segmented equal distribution strategy with the simulated annealing algorithm to comprehensively optimize the operation details of each electrolyzer. This not only effectively improves the utilization rate of renewable energy and hydrogen production, reduces the energy consumption rate, but also makes the load performance of each electrolyzer balanced, extends the life of the electrolyzer, and improves the system reliability.

[0122] It can be understood that the present invention proposes a new method for hydrogen production with a segmented equal distribution strategy for multiple electrolyzers, which dynamically adjusts the power distribution of electrolyzers according to the magnitude of wind power. This strategy has two conditions: when the wind power is greater than or equal to the minimum operating power of n electrolyzers, equal power distribution is implemented; when the wind power is less than the minimum operating power of n electrolyzers, based on the fact that the wind power can satisfy k (n < k) electrolyzers operating at the minimum working power, the wind power is equally distributed to k electrolyzers.

[0123] It can be understood that the present invention optimizes the working order of the electrolyzers based on the multi-electrolyzer segmented balanced allocation strategy combined with the simulated annealing algorithm, thereby improving the balance between hydrogen production and operating time between electrolyzers, which provides an innovative optimization method.

[0124] Based on this, the segmented balanced allocation strategy based on the simulated annealing algorithm proposed in the present invention has multiple advantages. The strategy of the present invention can reasonably allocate wind power to the electrolyzer when the wind power fluctuates, thereby avoiding energy waste. This strategy ensures that when the wind power is sufficient, all electrolyzers can make full use of wind power for production; and when the wind power is insufficient, priority is given to ensuring the operation of some electrolyzers, thereby maximizing the use of limited wind power resources. Secondly, the strategy of the present invention improves the hydrogen production efficiency, optimizes the working sequence and power distribution of the electrolyzer through the simulated annealing algorithm, ensures that the electrolyzer operates in the best state, thereby improving the overall hydrogen production efficiency. The segmented balanced allocation strategy has strong flexibility and adaptability, and can adjust the operating status of the electrolyzer in real time according to changes in wind power. This strategy can cope with different wind power inputs and ensure the stable operation of the electrolyzer system under different working conditions.

[0125] It should be noted that if Figure 7 As shown, the present invention, based on the multi-electrolyzer segmented balanced allocation strategy, can also be combined with a cyclical strategy to periodically rotate the operating order of the electrolyzers, similarly improving the balance between hydrogen production and operating time between electrolyzers. The operating order of each electrolyzer in the cyclical strategy needs to be switched after each switching cycle. Taking four electrolyzers as an example, the switching rules are: EL1 switches to EL2, EL2 switches to EL3, EL3 switches to EL4, and EL4 switches to EL1.

[0126] See also Figure 8 and Figure 9 , Figure 8 This is a structural diagram of a renewable energy complementary power generation system provided by the present invention. Figure 9 This is a structural diagram of another renewable energy electric complementary power generation system provided by the present invention, which can implement the above-mentioned multi-electrolyzer hybrid hydrogen production control method. The renewable energy electric complementary power generation system 700 includes:

[0127] A multi-electrolyzer hybrid hydrogen production module 710 is used to execute the multi-electrolyzer hybrid hydrogen production control method as described above, and to provide energy for electrolyzing water to produce hydrogen according to the multi-electrolyzer hybrid hydrogen production control method;

[0128] Renewable energy generation module 720, used to provide energy for the multi-electrolyzer hybrid hydrogen production module 710;

[0129] The power storage module 730 is used to store the renewable energy power generation module 720;

[0130] The power generation control module 740 is used to control the renewable energy power generation module 720, provide electrical energy to the multi-electrolyzer hybrid hydrogen production module 710, and control the power storage module 730 to balance the overload power of the multi-electrolyzer hybrid hydrogen production module 710; the power generation control module 740 is connected to the renewable energy module 720, the power storage module 730 and the multi-electrolyzer hybrid hydrogen production module 710 respectively.

[0131] The hydrogen storage module 750 is used to store the hydrogen energy generated by the multi-electrolyzer hybrid hydrogen production module. The hydrogen storage module 750 is connected to the multi-electrolyzer hybrid hydrogen production module 710 and is connected to the power generation control module 740.

[0132] The hydrogen power generation module 760 is used to burn the hydrogen energy in the hydrogen storage module 750 to provide electrical energy. The hydrogen power generation module 760 is connected to the hydrogen storage module 750 and is connected to the power generation control module 740.

[0133] It is understood that the power storage module 730 can maintain the energy fluctuation balance of the renewable energy complementary power generation system by storing excess power. It can also store excess power and release it when needed. This can make the system operate more stably and provide renewable energy to the power transmission grid at any time.

[0134] It can be understood that when the renewable energy power generation module generates low power, the storage module 730 can discharge to provide voltage, thereby maintaining the constant voltage of the transmission grid; when the renewable energy power generation module 720 generates strong power, charging the storage module 730 is equivalent to a load, thereby maintaining the constant voltage of the grid.

[0135] In addition, an embodiment of the present invention further discloses a computer-readable storage medium storing computer-executable instructions for executing the multi-electrolyzer hybrid hydrogen production control method as described in any of the previous embodiments.

[0136] The system architecture and application scenarios described in the embodiments of the present invention are intended to more clearly illustrate the technical solutions of the embodiments of the present invention and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. Those skilled in the art will appreciate that with the evolution of the system architecture and the emergence of new application scenarios, the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.

[0137] Those skilled in the art will appreciate that all or some of the steps in the methods, systems, and functional modules / units in the devices disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof.

[0138] In a hardware implementation, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0139] As used in this specification, the terms "component," "module," "system," and the like are used to refer to computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, or a computer. By way of illustration, both applications running on a computing device and a computing device can be components. One or more components can reside in a process or execution thread, and a component can be located on one computer or distributed between two or more computers. In addition, these components can be executed from various computer-readable media having various data structures stored thereon. Components can communicate, for example, through local or remote processes based on signals having one or more data packets (e.g., data from two components interacting with another component on a local system, a distributed system, or a network, such as the Internet interacting with other systems via signals).

Claims

1. A method for controlling hydrogen production by connecting multiple electrolyzers in parallel, comprising: Obtaining electrolysis power parameters of multiple electrolytic cells and real-time power generation of the power generation system, wherein the electrolysis power parameters include a rated minimum electrolysis power and a rated electrolysis power; According to the plurality of electrolysis power parameters and the real-time power generation, the plurality of electrolytic cells are controlled to perform electrolysis start and stop operations by evenly distributing power in sections according to power size.

2. The method according to claim 1, characterized in that The controlling of the plurality of electrolytic cells to distribute power in sections according to power size and to perform electrolysis start and stop operations includes: Compare the target round startup output power with the rated minimum electrolysis power of the target electrolytic cell to obtain the target round startup result; When the target round startup result is that the target round startup output power is greater than or equal to the rated minimum electrolysis power of the N target electrolytic cells, the target round startup output power is evenly distributed to the N target electrolytic cells, the N target electrolytic cells are controlled to start and perform electrolysis work, and the corresponding electrolytic cells are controlled to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolytic cells; When the target round startup result is that the target round startup output power is less than the rated minimum electrolysis power of N target electrolytic cells, it is determined whether the target round startup output power is greater than the rated minimum electrolysis power of N-1 target electrolytic cells; If the judgment is yes, that is, the target round startup output power is greater than the rated minimum electrolysis power of the N-1 target electrolytic cells, the target round startup output power is evenly distributed to the N-1 target electrolytic cells, the N-1 target electrolytic cells are controlled to start and perform electrolysis work, and the corresponding electrolytic cells are controlled to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolytic cells; If the judgment is no, that is, the target round startup output power is less than the rated minimum electrolysis power of N-1 target electrolytic cells, then determine whether the target round startup output power is greater than the rated minimum electrolysis power of N-2 target electrolytic cells; This process is repeated until it is determined whether the target round startup output power is greater than the rated minimum electrolysis power of one target electrolytic cell. If the answer is yes, then one target electrolytic cell is controlled to start performing electrolysis work, and the corresponding electrolytic cell is controlled to perform the next electrolysis start and stop operation based on the target position sequence of the target electrolytic cell; If the judgment is no, then based on the target position sequence of this target electrolytic cell, the corresponding electrolytic cell is controlled to stop performing the electrolysis work and perform the next electrolysis start-stop operation.

3. The method according to claim 1, characterized in that The method of controlling the plurality of electrolytic cells to perform electrolysis start and stop operations by evenly distributing power in sections according to power size based on the plurality of electrolysis power parameters and the real-time generated power includes: According to the electrolysis power parameters of the plurality of electrolytic cells, performing a segmented balanced power allocation operation on the real-time power generation of the power generation system in sequence to obtain an initial wind power allocation array; Performing a simulated annealing operation on the initial wind power allocation array to obtain an optimal solution for wind power array allocation; According to the optimal solution for the wind power array allocation, the plurality of electrolytic cells are controlled to perform electrolytic cell start and stop operations in sequence.

4. The method according to claim 3, characterized in that The performing of a simulated annealing operation on the initial wind power allocation array to obtain an optimal solution for wind power array allocation includes: Initializing simulated annealing algorithm parameters, including initial temperature, cooling rate, minimum annealing temperature, initial wind power array of multiple electrolyzers that are evenly distributed according to power size, and optimal solution for wind power array distribution; Set the annealing temperature; When the annealing temperature is greater than the minimum annealing temperature, randomly rotating the working order of each electrolytic cell in the initial wind power array of multiple electrolytic cells that have been evenly distributed according to power size, and determining whether to accept the new wind power array and the optimal solution for wind power array allocation obtained after the random rotation using the Metropolis criterion; When the new wind power array and the optimal solution for wind power array allocation obtained after random rotation are accepted, the annealing temperature is cooled; When the annealing temperature is less than or equal to the minimum annealing temperature, the optimal solution for wind power distribution at this time is output.

5. The method according to claim 3, characterized in that After controlling the plurality of electrolytic cells to sequentially perform electrolytic cell start and stop operations according to the optimal solution for the wind power array allocation, the method further includes: Performing a segmented balanced power allocation operation on the target round startup output power in sequence to obtain an initial wind power allocation array; Perform simulated annealing on the initial wind power allocation array to obtain the optimal solution for wind power array allocation; According to the optimal solution for wind power array allocation, multiple electrolyzers are controlled to perform electrolyzer start and stop operations in sequence.

6. A renewable energy complementary power generation system, characterized in that: include: A multi-electrolyzer hybrid hydrogen production module, the multi-electrolyzer hybrid hydrogen production module is used to execute the multi-electrolyzer hybrid hydrogen production control method according to any one of claims 1 to 5, and to provide energy for electrolyzing water to produce hydrogen according to the multi-electrolyzer hybrid hydrogen production control method; A renewable energy power generation module, used to provide energy for the multi-electrolyzer hybrid hydrogen production module; A power storage module, used to store excess electrical energy from the renewable energy power generation module; The power generation control module is used to control the renewable energy power generation module, provide electrical energy to the multi-electrolyzer hybrid hydrogen production module, and control the power storage module to balance the overload power of the multi-electrolyzer hybrid hydrogen production module; the power generation control module is respectively connected to the multi-electrolyzer hybrid hydrogen production module, the renewable energy module and the power storage module.

7. The renewable energy complementary power generation system according to claim 6, characterized in that: Also includes: A hydrogen storage module, used to store the hydrogen energy generated by the multi-electrolyzer hybrid hydrogen production module, the hydrogen storage module being connected to the multi-electrolyzer hybrid hydrogen production module and the power generation control module respectively; The hydrogen power generation module is used to burn the hydrogen energy in the hydrogen storage module to provide electrical energy. The hydrogen power generation module is connected to the hydrogen storage module and the power generation control module respectively.

8. The renewable energy complementary power generation system according to claim 6, characterized in that: Also includes: The power storage module is also used to maintain the energy fluctuation balance of the renewable energy complementary power generation system by storing excess electric energy, and to store the generated excess electric energy and release it when needed.

9. The renewable energy complementary power generation system according to claim 8, characterized in that: The power storage module is also used to maintain the energy fluctuation balance of the wind-photovoltaic hybrid power generation system by storing excess electric energy, and to store the generated excess electric energy and release it when needed, specifically: When the power generated by the renewable energy generation module is lower than a preset threshold, the power storage module can discharge to provide voltage, thereby maintaining a constant voltage of the power transmission grid; When the power generated by the renewable energy power generation module is higher than a preset threshold, charging the power storage module is equivalent to a load, thereby maintaining a constant grid voltage.

10. A computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the multi-electrolyzer hybrid hydrogen production control method according to any one of claims 1 to 5.

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