Operation scheduling method, device and equipment for multi-tank parallel hydrogen production system

Abstract

The invention relates to the technical field of water electrolysis hydrogen production, and discloses an operation scheduling method, device and equipment for a multi-tank parallel hydrogen production system, and the method comprises the steps: obtaining the historical data of each electrolytic tank, and updating the scheduling number of each electrolytic tank according to the historical data of each electrolytic tank; obtaining the working state of each electrolytic cell at the current moment and the predicted power generation power of the power supply device at the next moment; determining power parameters of the multi-tank parallel hydrogen production system at the current moment according to the working state of each electrolytic tank at the current moment; and according to the relationship between the predicted power generation power of the power supply device at the next moment and the power parameter of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolytic tank is scheduled according to the working state and the scheduling number of each electrolytic tank at the current moment. According to the invention, the difference of accumulated working time of each electrolytic cell is reduced, frequent start and stop of the electrolytic cells caused by fluctuation of input power are avoided, and the overall service life of the multi-cell parallel hydrogen production system is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen production by electrolysis of water, and in particular to an operation scheduling method, device and equipment for a multi-tank parallel hydrogen production system. Background Art

[0002] The penetration rate of renewable energy generation such as wind power and photovoltaic power in the power system is growing rapidly, but there are still certain technical bottlenecks in the large-scale and high-proportion grid connection of renewable energy generation, which affects its absorption ratio. Coupling with water electrolysis to produce hydrogen can effectively smooth the volatility of wind and solar power, enhance the dispatchability of wind and solar power, and provide a new technical solution to solve the problem of wind and solar absorption. In the scenario of large-scale green electricity hydrogen production, the integration and modularization of water electrolysis to produce hydrogen in a multi-to-one form has become an inevitable trend. The disassembly process of the electrolyzer is relatively cumbersome, so the cost of overhaul and maintenance is high. Therefore, how to extend and balance the life of the multi-tank parallel hydrogen production system is a key issue that needs to be solved urgently. The number of starts and stops and the operating time are the main factors affecting the life of the electrolyzer. Among them, the frequent cold start of the electrolyzer will cause the diaphragm gasket to be frequently compressed and relaxed, resulting in a decrease in sealing performance or even failure; the performance and life of the diaphragm and electrode will decrease with the working time. The strong volatility and randomness of green electricity power will lead to frequent start and stop of the electrolyzer and the imbalance of the working time of each tank. At present, the scheduling strategy of the multi-tank system is still immature. Although the rotation strategy improved on the basis of the traditional sequential start-stop strategy can improve the imbalance of the working time of the electrolytic cells to a certain extent, it does not solve the problem of frequent start-stop of the electrolytic cells. On the contrary, rotation at fixed time intervals will lead to an increase in the number of start-stop times, resulting in a shortened overall life of the system. Summary of the invention

[0003] In view of this, the present invention provides an operation scheduling method, device and equipment for a multi-tank parallel hydrogen production system to solve the problems of frequent start and stop and uneven working time of the multi-tank parallel hydrogen production system due to input power fluctuation.

[0004] In a first aspect, the present invention provides an operation scheduling method for a multi-tank parallel hydrogen production system, wherein the multi-tank parallel hydrogen production system comprises a plurality of parallel electrolyzers, and the multi-tank parallel hydrogen production system utilizes the electric energy generated by a power supply device to electrolyze water in each electrolyzer to prepare hydrogen, and the method comprises: Obtain the historical data of each electrolytic cell, and update the dispatch number of each electrolytic cell according to the historical data of each electrolytic cell. The dispatch number is used to represent the dispatch priority of each electrolytic cell. The historical data includes the historical working status and historical accumulated running time of each electrolytic cell. Obtain the working status of each electrolytic cell at the current moment and the predicted power generation power of the power supply device at the next moment; Determine the power parameters of the multi-tank parallel hydrogen production system at the current moment according to the working status of each electrolyzer at the current moment; According to the relationship between the predicted power generation of the power supply device at the next moment and the power parameters of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment.

[0005] The operation scheduling method of the multi-tank parallel hydrogen production system provided by the present invention utilizes the historical data of each electrolyzer to update the scheduling number, and schedules each electrolyzer in combination with the current operating status of each electrolyzer and the relationship between the power parameters of the multi-tank parallel hydrogen production system and the preset power generation power. Since the scheduling number is determined based on the current operating status of each electrolyzer and the historical cumulative operating time, when scheduling the working status of each electrolyzer according to the scheduling number of each electrolyzer, the cumulative working time of each electrolyzer can be fully considered, the difference in the cumulative working time of each electrolyzer is reduced, and the frequent start and stop of the electrolyzer caused by the fluctuation of the input power is avoided. In addition, the scheduling number of each electrolyzer is continuously updated, fully considering that after the multi-tank parallel hydrogen production system has been running for a period of time, the cumulative working time of each electrolyzer under different working states may change. Updating the scheduling number can balance the cumulative working time of each electrolyzer and improve the overall life of the multi-tank parallel hydrogen production system.

[0006] In an optional implementation, obtaining historical data of each electrolytic cell, and updating the scheduling number of each electrolytic cell according to the historical data of each electrolytic cell, includes: Obtain the historical working status and historical cumulative operating time of each electrolytic cell, and calculate the average operating time of each electrolytic cell; Calculate the difference between the historical cumulative operating time and the average operating time of each electrolytic cell, and determine the number of electrolytic cells whose difference is greater than a preset time threshold; If the proportion of the number of electrolytic cells whose difference is greater than the preset duration threshold to the total number of electrolytic cells is greater than the preset proportion threshold, the scheduling number of each electrolytic cell is updated in ascending order according to the historical cumulative operating time of each electrolytic cell.

[0007] The operation scheduling method of the multi-tank parallel hydrogen production system provided by the present invention updates the scheduling number of the electrolyzer according to the relationship and quantity between the historical cumulative operating time of the electrolyzer and the average working time of each electrolyzer, so as to make the scheduling of the electrolyzer more reasonable and reduce the difference in the cumulative operating time of each electrolyzer.

[0008] In an optional embodiment, the method further includes: Determine the maximum difference based on the difference between the historical cumulative operating time and the average operating time of each electrolytic cell; The next update time of the scheduling number of each electrolytic cell is determined according to the maximum difference.

[0009] The operation scheduling method for a multi-tank parallel hydrogen production system provided by the present invention uses the maximum difference between the historical cumulative operating time of each electrolyzer and the average working time as the next update time interval of the scheduling number of each electrolyzer, thereby avoiding frequent adjustments to the scheduling number and being beneficial to improving the service life of the multi-tank parallel hydrogen production system.

[0010] In an optional implementation, obtaining the predicted power generation power of the power supply device at the next moment includes: Acquire historical power generation data of the power supply device, the historical power generation data including power generation power curve and environmental data corresponding to the power supply device at different times; Establish a power generation prediction model based on historical power generation data; The environmental data at the current moment is obtained, and the predicted power generation power at the next moment is predicted using the power generation power prediction model based on the environmental data at the current moment.

[0011] The operation scheduling method of the multi-tank parallel hydrogen production system provided by the present invention establishes a power generation prediction model using historical power generation data to predict the predicted power generation at the next moment, so that the adjustment of the state of each electrolytic cell at the next moment according to the predicted power generation is more accurate.

[0012] In an optional embodiment, the working state of the electrolyzer includes: production state, standby state, and shutdown state, and the power parameters of the multi-tank parallel hydrogen production system include system rated power, system minimum production power, and system standby power; The power parameters of the multi-tank parallel hydrogen production system at the current moment are determined according to the working status of each electrolyzer at the current moment, including: Identify the electrolyzers in production and standby; Determine the system rated power of the multi-tank parallel hydrogen production system at the current moment according to the sum of the rated powers of the electrolyzers in the production state and the standby state; Determine the system minimum production power of the multi-tank parallel hydrogen production system at the current moment according to the sum of the production power lower limits of each electrolyzer in the production state and the sum of the standby power of each electrolyzer in the standby state; The system standby power of the multi-tank parallel hydrogen production system at the current moment is determined according to the sum of the standby powers of the electrolytic cells in the production state and the standby state.

[0013] The operation scheduling method of the multi-tank parallel hydrogen production system provided by the present invention determines the power parameters of the multi-tank parallel hydrogen production system through the working status of each electrolyzer and the corresponding power, refines the power parameter analysis of the multi-tank parallel hydrogen production system, and is conducive to more accurately grasping the current situation of each electrolyzer, facilitating subsequent analysis and control based on this.

[0014] In an optional embodiment, according to the relationship between the predicted power generation power of the power supply device at the next moment and the power parameter of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment, including: If the predicted power generation at the next moment is greater than the system rated power, then the first power difference between the predicted power generation at the next moment and the system rated power is calculated; Determining a first number of electrolytic cells that enter a standby state from a shutdown state according to the first power difference and the rated power of the electrolytic cells; According to the scheduling numbers of the electrolytic cells in the shutdown state, the first number of electrolytic cells with the highest numbers are put into the standby state.

[0015] The operation scheduling method of the multi-tank parallel hydrogen production system provided by the present invention determines the number of electrolytic cells that need to be switched from a shutdown state to a production state by the difference between the predicted power generation and the rated power of the system when the power generation is predicted to be too large, and then determines the electrolytic cells that need to be preheated according to the scheduling number, and enters the standby state in advance, saving the time for entering the production state at the next moment. The electrolytic cells are determined according to the scheduling number, which is conducive to balancing the operation time of each electrolytic cell.

[0016] In an optional embodiment, according to the relationship between the predicted power generation power of the power supply device at the next moment and the power parameter of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment, and further comprising: If the next moment predicted power generation power is greater than the system standby power and less than the system minimum production power, then calculate the second power difference between the system minimum production power and the next moment predicted power generation power; Determine a second number of entering the standby state from the production state according to the second power difference, the difference between the production power lower limit and the standby power; According to the scheduling number of each electrolytic cell in the production state, the second number of electrolytic cells with the later number are put into the standby state at the next moment.

[0017] The operation scheduling method of the multi-tank parallel hydrogen production system provided by the present invention determines the number of electrolytic cells that need to be switched from the production state to the standby state by predicting the power generation power and the system's minimum production power when the predicted power generation power is small, thereby avoiding frequent start and stop of the electrolytic cells caused by power generation power fluctuations, and then determines the electrolytic cells that are switched to the standby state according to the scheduling number, thereby minimizing the difference in the accumulated operating time of each electrolytic cell under the premise of ensuring power balance.

[0018] In an optional embodiment, according to the relationship between the predicted power generation power of the power supply device at the next moment and the power parameter of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment, and further comprising: If the predicted power generation at the next moment is not greater than the system standby power, the number of electrolytic cells in production state and the number of electrolytic cells in standby state at the next moment are determined according to the preset principle. The preset principle is:

[0019] Among them, l t+1 Indicates the number of electrolytic cells in production at the next moment, s t+1 Indicates the number of electrolytic cells in standby state at the next moment, P S Indicates the standby power of the electrolyzer, P min Represents the lower limit of the production power of the electrolytic cell, P t+1 Indicates the predicted power generation at the next moment; Determine the third number of electrolytic cells that will enter the standby state from the production state at the next moment according to the number of electrolytic cells in the production state at the current moment and the number of electrolytic cells that will be in the production state at the next moment; determine the fourth number of electrolytic cells that will enter the shutdown state from the standby state at the next moment according to the number of electrolytic cells in the standby state at the current moment and the number of electrolytic cells that will be in the standby state at the next moment; At the next moment, the third number of electrolytic cells with the last number are put into standby state according to the scheduling number of each electrolytic cell in the production state, and the fourth number of electrolytic cells with the last number are put into shutdown state according to the scheduling number of each electrolytic cell in the standby state.

[0020] The operation scheduling method of the multi-tank parallel hydrogen production system provided by the present invention determines the number of electrolyzers that are switched from the production state to the standby state and the number of electrolyzers that are switched from the standby state to the shutdown state by predicting the power generation power and the system standby power when the power generation power is predicted to be very small. Similarly, the electrolyzers that need to be adjusted are determined according to the scheduling numbers of the electrolyzers in each state, thereby improving the imbalance of the cumulative operating time of each electrolyzer and increasing the life of the multi-tank parallel hydrogen production system.

[0021] In a second aspect, the present invention provides an operation scheduling device for a multi-tank parallel hydrogen production system, wherein the multi-tank parallel hydrogen production system comprises a plurality of parallel electrolyzers, and the multi-tank parallel hydrogen production system utilizes the electric energy generated by the power supply device to electrolyze water in each electrolyzer to prepare hydrogen, and the device comprises: A scheduling number update module is used to obtain the historical data of each electrolytic cell and update the scheduling number of each electrolytic cell according to the historical data of each electrolytic cell. The scheduling number is used to represent the scheduling priority of each electrolytic cell. The historical data includes the historical working status and historical accumulated running time of each electrolytic cell. The current data acquisition module is used to obtain the working status of each electrolytic cell at the current moment and the predicted power generation power of the power supply device at the next moment; A power parameter determination module is used to determine the power parameters of the multi-tank parallel hydrogen production system at the current moment according to the working status of each electrolyzer at the current moment; The working status scheduling module is used to schedule the working status of each electrolyzer according to the working status and scheduling number of each electrolyzer at the current moment, based on the relationship between the predicted power generation power of the power supply device at the next moment and the power parameters of the multi-tank parallel hydrogen production system at the current moment.

[0022] In a third aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the method of the first aspect or any corresponding embodiment thereof by executing the computer instructions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a flow chart of an operation scheduling method of a multi-tank parallel hydrogen production system according to an embodiment of the present invention; Figure 2 is a schematic diagram of numbering electrolytic cells in an operation scheduling method for a multi-tank parallel hydrogen production system according to an embodiment of the present invention; Figure 3 is a schematic diagram of the mutual conversion of the working states of the electrolyzers in the operation scheduling method of the multi-tank parallel hydrogen production system according to an embodiment of the present invention; Figure 4 is a flow chart of another operation scheduling method of a multi-tank parallel hydrogen production system according to an embodiment of the present invention; Figure 5 is a complete flow chart of an operation scheduling method for a multi-tank parallel hydrogen production system according to an embodiment of the present invention; Figure 6 is a graph of electrolytic cell efficiency in an operation scheduling method for a multi-tank parallel hydrogen production system according to an embodiment of the present invention; Figure 7 is a structural block diagram of an operation scheduling device for a multi-tank parallel hydrogen production system according to an embodiment of the present invention; Figure 8 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] An embodiment of the present invention provides an operation scheduling method for a multi-tank parallel hydrogen production system. The scheduling number is updated by utilizing the historical data of each electrolyzer, and each electrolyzer is scheduled in combination with the current operating status of each electrolyzer and the relationship between the power parameters of the multi-tank parallel hydrogen production system and the preset power generation power, so as to reduce the difference in the cumulative working time of each electrolyzer, avoid frequent start and stop of the electrolyzer due to fluctuations in input power, and improve the overall life of the multi-tank parallel hydrogen production system.

[0027] It should be noted that the operation scheduling method of the multi-tank parallel hydrogen production system provided in the embodiment of the present invention can be applied in the actual application process of the multi-tank parallel hydrogen production system to directly schedule each electrolyzer, and can also be applied in the operation planning process of the multi-tank parallel hydrogen production system to facilitate preliminary analysis and planning.

[0028] According to an embodiment of the present invention, an embodiment of an operation scheduling method for a multi-tank parallel hydrogen production system is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that shown here.

[0029] In this embodiment, an operation scheduling method of a multi-tank parallel hydrogen production system is provided, which can be used in the above-mentioned computer system. The multi-tank parallel hydrogen production system includes a plurality of parallel electrolyzers. The multi-tank parallel hydrogen production system uses the electric energy generated by the power supply device to electrolyze water in each electrolyzer to produce hydrogen. Figure 1 is a flow chart of an operation scheduling method of a multi-tank parallel hydrogen production system according to an embodiment of the present invention. Figure 1 As shown, the process includes the following steps: Step S101, obtain the historical data of each electrolytic cell, and update the scheduling number of each electrolytic cell according to the historical data of each electrolytic cell. The scheduling number is used to characterize the scheduling priority of each electrolytic cell. The historical data includes the historical working status and historical accumulated operating time of each electrolytic cell.

[0030] Specifically, when the multi-tank parallel hydrogen production system starts running, all electrolyzers are serially numbered to distinguish each electrolyzer, which will not change with the operation schedule. At the same time, a historical data set reflecting the historical operation status of the electrolyzer corresponding to the serial number is established to record and store the working status and historical cumulative operation time of each electrolyzer. The scheduling number is assigned to each electrolyzer based on its historical data. The scheduling number needs to identify the working status and represent the scheduling priority of each electrolyzer, such as Figure 2 As shown, two different scheduling numbers are shown, where "l" represents production status, "s" represents standby status, and "i" represents shutdown status, which is only an example but not limited to this.

[0031] The numbering rule of the dispatch number is that the last one to start is the first one to stop, and the first one to stop is the first one to start. For example, in the production state, the electrolytic cells that are newly opened are numbered in the end. When shutting down, the electrolytic cells with the later numbers are shut down first. The rules of the standby state and the shutdown state are the same. They are numbered in the order of entering the standby / shutdown state. The electrolytic cells that are newly in standby / shutdown are numbered in the front. When starting, the electrolytic cells with the front numbers are prioritized. Figure 2 As shown in the figure, if an electrolytic cell in production state needs to enter standby state, then l_3 is prioritized to enter standby state, and then the scheduling number of this electrolytic cell becomes s_1, and the scheduling numbers of the original electrolytic cells in standby state are successively postponed to s_2, s_3, .... If an electrolytic cell in standby state needs to enter production state, then s_1 is prioritized to enter production state, and then the scheduling number of this electrolytic cell becomes l_4.

[0032] When each electrolyzer is in a stable working state, the cumulative working time of each electrolyzer may change. For example, the cumulative working time of the first electrolyzer in production may change from 100h to 110h after a period of production. At this time, the cumulative working time of the second electrolyzer in shutdown state may be 102h. If the input power of the multi-tank parallel hydrogen production system remains unchanged, the working state of each electrolyzer will not change. The first electrolyzer continues to be in production and the second electrolyzer continues to be in shutdown state. The difference in the cumulative working time between the two will become larger and larger, affecting the service life of the multi-tank parallel hydrogen production system. Therefore, it is necessary to update the scheduling number of each electrolyzer according to the historical data of each electrolyzer.

[0033] Step S102, obtaining the working status of each electrolytic cell at the current moment and the predicted power generation power of the power supply device at the next moment.

[0034] Specifically, the working state of the electrolytic cell includes: production state, standby state, and shutdown state. Figure 3 As shown, it is a schematic diagram of the switching process between various working states. Cold start requires time to heat the electrolyte in the electrolyzer, and the hydrogen generated during this period is not available. During hot start, the electrolyzer can directly enter the production state from the standby state. The standby state requires a certain amount of standby power to maintain the temperature and pressure of the electrolyzer. After the input power is increased, it can enter the production state in a very short time, while avoiding the heating process of the electrolyzer and reducing the loss of components such as the diaphragm gasket. The time interval between the current moment and the next moment can be seconds or minutes, as an example only, but not limited to this.

[0035] The predicted power generation is determined by combining the historical power generation with the current situation. The power supply device may be a wind power supply device, a photovoltaic power supply device, etc., which is only used as an example but not limited thereto.

[0036] Step S103, determining the power parameters of the multi-tank parallel hydrogen production system at the current moment according to the working status of each electrolytic cell at the current moment.

[0037] Specifically, by Figure 3 It can be seen that when the electrolytic cell is in a shutdown state, the power consumption is 0; when the electrolytic cell is in a standby state, standby power is required to maintain the temperature and pressure of the electrolytic cell; when the electrolytic cell is in a production state, the production power range of water produced by electrolysis is not less than the lower limit of the production power and not greater than the rated power.

[0038] According to the working status of each electrolytic cell at the current moment and Figure 3 The power consumed by each electrolyzer in different states is used to determine the power parameters of the multi-tank parallel hydrogen production system at the current moment.

[0039] Step S104, according to the relationship between the predicted power generation of the power supply device at the next moment and the power parameters of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment.

[0040] Specifically, based on the relationship between the predicted power generation of the power supply device at the next moment and the power parameters of the multi-tank parallel hydrogen production system at the current moment, the number of electrolyzers in different working states at the next moment can be determined, and then the working state of each electrolyzer can be scheduled according to the number of electrolyzers in different working states at the next moment and the scheduling number.

[0041] The operation scheduling method of the multi-tank parallel hydrogen production system provided in the present embodiment updates the scheduling number using the historical data of each electrolyzer, and schedules each electrolyzer in combination with the current operating status of each electrolyzer and the relationship between the power parameters of the multi-tank parallel hydrogen production system and the preset power generation power. Since the scheduling number is determined based on the current operating status of each electrolyzer and the historical cumulative operating time, when scheduling the working status of each electrolyzer according to the scheduling number of each electrolyzer, the cumulative working time of each electrolyzer can be fully considered, the difference in the cumulative working time of each electrolyzer is reduced, and the frequent start and stop of the electrolyzer caused by the fluctuation of the input power is avoided. In addition, the scheduling number of each electrolyzer is continuously updated, fully considering that after the multi-tank parallel hydrogen production system has been running for a period of time, the cumulative working time of each electrolyzer under different working conditions may change. Updating the scheduling number can balance the cumulative working time of each electrolyzer and improve the overall life of the multi-tank parallel hydrogen production system.

[0042] In this embodiment, a method for operating and scheduling a multi-tank parallel hydrogen production system is provided, which can be used in the above-mentioned computer system. Figure 4 is a flow chart of an operation scheduling method of a multi-tank parallel hydrogen production system according to an embodiment of the present invention. Figure 4 As shown, the process includes the following steps: Step S201, obtain the historical data of each electrolytic cell, and update the scheduling number of each electrolytic cell according to the historical data of each electrolytic cell. The scheduling number is used to characterize the scheduling priority of each electrolytic cell. The historical data includes the historical working status and historical accumulated operating time of each electrolytic cell.

[0043] Specifically, the above step S201 includes: Step S2011, obtaining the historical working status and historical cumulative operating time of each electrolytic cell, and calculating the average operating time of each electrolytic cell.

[0044] Specifically, since the strategy of "stop first in the later stage, start first in the earlier stage" is followed during the state switching of the electrolytic cell, the electrolytic cells with the earlier rotation numbers that are initially in the production state can be in the production / standby state as much as possible, effectively reducing the number of starts and stops, but resulting in an imbalance in the running time of each electrolytic cell. Therefore, at each moment before the scheduling number is updated, the historical cumulative running time in the electrolytic cell operation status data set is statistically analyzed to obtain the average working time of each electrolytic cell at the corresponding moment.

[0045] Step S2012, calculating the difference between the historical cumulative operating time of each electrolytic cell and the average operating time, and determining the number of electrolytic cells whose difference is greater than a preset time threshold.

[0046] Specifically, the difference between the historical cumulative operating time of each electrolytic cell and the average operating time is calculated, and the number of electrolytic cells whose difference exceeds the preset time threshold is determined. The preset time threshold may be a preset ratio of the average operating time. For example, if the average operating time is 100 hours, the preset time threshold may be 20 hours, which is only an example, but not limited thereto. It should be noted that the preset time threshold may also be a fixed value set artificially according to actual conditions, such as 24 hours, which is only an example, but not limited thereto.

[0047] Step S2013, if the proportion of the number of electrolytic cells whose difference is greater than the preset time threshold to the total number of electrolytic cells is greater than the preset proportion threshold, the scheduling number of each electrolytic cell is updated in ascending order according to the historical cumulative running time of each electrolytic cell.

[0048] Specifically, if the proportion of the number of electrolytic cells whose difference is greater than the preset time threshold to the total number of electrolytic cells is greater than the preset ratio threshold, the scheduling numbers of all electrolytic cells can be renumbered in ascending order of historical cumulative running time. It should be noted that whether the scheduling number is updated can also be determined based on the relationship between the number of electrolytic cells whose difference is greater than the preset time threshold and the preset number threshold, which is only used as an example, but is not limited to this.

[0049] The operation scheduling method for a multi-tank parallel hydrogen production system provided in this embodiment updates the scheduling number of the electrolyzer according to the relationship and quantity between the historical cumulative operating time of the electrolyzer and the average working time of each electrolyzer, thereby making the scheduling of the electrolyzer more reasonable and reducing the difference in the cumulative operating time of each electrolyzer.

[0050] In some optional embodiments, the method further comprises: The maximum difference is determined based on the difference between the historical cumulative operating time and the average operating time of each electrolytic cell.

[0051] The next update time of the scheduling number of each electrolytic cell is determined according to the maximum difference.

[0052] Specifically, in order to avoid frequent adjustments to the scheduling number, the statistical analysis of the historical cumulative operating time of each electrolytic cell can be suspended after each update of the scheduling number. After a preset period of time, the scheduling number can be updated based on the analysis results of the historical cumulative operating time of each electrolytic cell. The preset time can be a fixed value, or it can be the maximum value of the difference between the historical cumulative operating time of each electrolytic cell and the average working time. This is only an example, but not limited to this.

[0053] The operation scheduling method for a multi-tank parallel hydrogen production system provided in this embodiment uses the maximum difference between the historical cumulative operating time of each electrolyzer and the average working time as the next update time interval of the scheduling number of each electrolyzer, thereby avoiding frequent adjustments to the scheduling number and being beneficial to improving the service life of the multi-tank parallel hydrogen production system.

[0054] Step S202, obtaining the working status of each electrolytic cell at the current moment and the predicted power generation power of the power supply device at the next moment.

[0055] Specifically, the above step S202 includes: Step S2021, obtaining historical power generation data of the power supply device, wherein the historical power generation data includes a power generation curve and environmental data corresponding to the power supply device at different times.

[0056] Specifically, when the power supply device is a wind power supply device, the environmental data may be wind speed, temperature, humidity, weather conditions, etc.; when the power supply device is a photovoltaic power supply device, the environmental data may be light intensity, light angle, weather conditions, etc., which are examples only, but not limited thereto. The power generation curve is a curve formed by the corresponding power generation size under different environmental data.

[0057] Step S2022: establishing a power generation prediction model based on historical power generation data.

[0058] Specifically, features are extracted from the power generation curve, and an optimization algorithm is used for learning and training to establish a power generation prediction model. This process is a mature existing technology and will not be described in detail here.

[0059] Step S2023, obtaining the environmental data at the current moment, and using the power generation prediction model to predict the predicted power generation at the next moment based on the environmental data at the current moment.

[0060] Specifically, the environmental data at the current moment is input into the power generation prediction model to obtain the predicted power generation at the next moment.

[0061] The operation scheduling method of the multi-tank parallel hydrogen production system provided in this embodiment uses historical power generation data to establish a power generation prediction model to predict the power generation at the next moment, so that the adjustment of the state of each electrolytic cell at the next moment based on the predicted power generation is more accurate.

[0062] Step S203, determining the power parameters of the multi-tank parallel hydrogen production system at the current moment according to the working status of each electrolytic cell at the current moment.

[0063] Specifically, the working state of the electrolyzer includes: production state, standby state, and shutdown state, and the power parameters of the multi-tank parallel hydrogen production system include system rated power, system minimum production power, and system standby power. The above step S203 includes: Step S2031, determining the electrolytic cells in production state and standby state.

[0064] Step S2032, determining the system rated power of the multi-tank parallel hydrogen production system at the current moment according to the sum of the rated powers of the electrolytic cells in the production state and the standby state.

[0065] Specifically, assuming that both the electrolyzers in the production state and the standby state electrolyze water at the rated power, the sum of the rated powers of the electrolyzers in the production state and the standby state is used as the system rated power of the multi-tank parallel hydrogen production system at the current moment. For example, there are 5 electrolyzers in the production state and 2 electrolyzers in the standby state, and the rated power of the electrolyzers is 100kW, then the system rated power is (5+2)×100=700kW.

[0066] Step S2033, determining the system minimum production power of the multi-tank parallel hydrogen production system at the current moment according to the sum of the lower limits of the production power of each electrolytic cell in production and the sum of the standby powers of each electrolytic cell in standby.

[0067] Specifically, assuming that each electrolyzer in the production state electrolyzes water at the lower limit of the production power, the power required by the electrolyzers in the production state and the standby state is calculated, and the power is used as the system minimum production power of the multi-tank parallel hydrogen production system at the current moment. For example, there are 5 electrolyzers in the production state and 2 electrolyzers in the standby state. The lower limit of the production power of the electrolyzer is 20kW, and the standby power of the electrolyzer is 10kW. The system minimum production power is 5×20+2×10=120kW.

[0068] Step S2034, determining the system standby power of the multi-tank parallel hydrogen production system at the current moment according to the sum of the standby powers of the electrolytic cells in the production state and the standby state.

[0069] Specifically, assuming that all electrolyzers in production and standby states are in standby state, the sum of the standby powers of the electrolyzers in standby state is calculated as the system standby power of the multi-tank parallel hydrogen production system. For example, there are 5 electrolyzers in production state and 2 electrolyzers in standby state, and the standby power of the electrolyzers is 10kW, then the system standby power is (5+2)×10=70kW.

[0070] The operation scheduling method of the multi-tank parallel hydrogen production system provided in this embodiment determines the power parameters of the multi-tank parallel hydrogen production system through the working status of each electrolyzer and the corresponding power, refines the power parameter analysis of the multi-tank parallel hydrogen production system, and is conducive to more accurately grasping the current situation of each electrolyzer, facilitating subsequent analysis and control based on this.

[0071] Step S204, according to the relationship between the predicted power generation of the power supply device at the next moment and the power parameters of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment.

[0072] Specifically, Figure 5 As shown, it is a complete flow chart of the operation scheduling method of the multi-tank parallel hydrogen production system provided in an embodiment of the present invention.

[0073] Specifically, the above step S204 includes: Step S2041, if the predicted power generation at the next moment is greater than the system rated power, calculate the first power difference between the predicted power generation at the next moment and the system rated power; determine the first number of electrolytic cells that enter the standby state from the shutdown state according to the first power difference and the rated power of the electrolytic cell; and according to the scheduling number of each electrolytic cell in the shutdown state, make the first number of electrolytic cells with the front numbers enter the standby state.

[0074] Specifically, if the predicted power generation at the next moment is greater than the rated power of the system, it means that when entering the next moment, the power generation equipment will generate more power, and the existing electrolytic cells in production and standby states cannot be fully consumed. Therefore, part of the power is allocated to the electrolytic cells in the shutdown state at the current moment for preheating in advance, so that they enter the standby state, to ensure that when entering the next moment, the electrolytic cells in the shutdown state can quickly enter the production state, saving time. At the current moment, the electrolytic cells in the shutdown state are not directly converted to the production state, which reduces the heating time of the electrolytic cells and the consumption of the current input power, and reduces the loss of components such as diaphragms and gaskets.

[0075] The first number of electrolytic cells entering the standby state from the shutdown state can be determined by formula (1): (1) in, represents the first quantity, Indicates the number of electrolytic cells in production at the current moment, Indicates the number of electrolytic cells currently in standby mode. It indicates the predicted power generation at the next moment. Indicates the rated power of the electrolyzer.

[0076] After the first number of electrolytic cells enter the standby state, the predicted power generation at the next moment will be greater than the required power of each electrolytic cell, that is, the power of all electrolytic cells in the production state is not completely consistent, so according to Figure 6The electrolyzer efficiency curve shown allocates the power of the electrolyzer in production with the goal of maximizing hydrogen production, wherein the solid line represents the efficiency curve, the dotted line represents the hydrogen production curve, and the horizontal axis represents the electrolyzer power. The specific allocation method is a mature existing technology and will not be repeated here.

[0077] The operation scheduling method for a multi-tank parallel hydrogen production system provided in this embodiment determines the number of electrolytic cells that need to be switched from a shutdown state to a production state by the difference between the predicted power generation and the system rated power when the power generation is predicted to be too large. Then, the electrolytic cells that need to be preheated are determined according to the scheduling number, and enter the standby state in advance, saving the time for entering the production state at the next moment. The electrolytic cells are determined according to the scheduling number, which is conducive to balancing the operation time of each electrolytic cell.

[0078] Step S2042, if the predicted power generation power at the next moment is greater than the system standby power and less than the system minimum production power, then calculate the second power difference between the system minimum production power and the predicted power generation power at the next moment; determine the second number of electrolytic cells entering the standby state from the production state according to the second power difference, the difference between the lower limit of the production power and the standby power; and according to the scheduling number of each electrolytic cell in the production state, at the next moment, make the second number of electrolytic cells with the later number enter the standby state.

[0079] Specifically, if the predicted power generation at the next moment is greater than the system standby power and less than the system minimum production power, it means that the predicted power generation at the next moment cannot support all the electrolytic cells currently in production to maintain production status, and it is necessary to reduce the power of the second number of electrolytic cells to switch from production status to standby status, so that these electrolytic cells can be quickly started when the input power generated by the power generation equipment increases. Figure 6 The electrolyzer efficiency curve shown allocates the power of the electrolyzer in production with the goal of maximizing hydrogen production. The specific allocation method is a mature existing technology and will not be described in detail here.

[0080] The second number of electrolytic cells that are switched from production state to standby state can be determined by formula (2): (2) Where n represents the second number, Indicates the number of electrolytic cells in production at the current moment, Indicates the number of electrolytic cells currently in standby mode. It indicates the predicted power generation at the next moment. Indicates the standby power of the electrolyzer, Indicates the lower limit of the production power of the electrolytic cell.

[0081] The operation scheduling method for a multi-tank parallel hydrogen production system provided in this embodiment determines the number of electrolytic cells that need to be switched from production to standby state by predicting the power generation power and the system's minimum production power when the predicted power generation power is small, thereby avoiding frequent start and stop of the electrolytic cells caused by power generation power fluctuations, and then determines the electrolytic cells to be switched to standby state based on the scheduling number, thereby minimizing the difference in the accumulated operating time of each electrolytic cell while ensuring power balance.

[0082] Step S2043: if the predicted power generation at the next moment is not greater than the system standby power, the number of electrolytic cells in production state and the number of electrolytic cells in standby state at the next moment are determined according to a preset principle. The preset principle follows formula (3): (3) Among them, l t+1 Indicates the number of electrolytic cells in production at the next moment, s t+1 Indicates the number of electrolytic cells in standby state at the next moment, P S Indicates the standby power of the electrolyzer, P min Represents the lower limit of the production power of the electrolytic cell, P t+1 It indicates the predicted power generation at the next moment; according to the number of electrolytic cells in production at the current moment and the number of electrolytic cells in production at the next moment, the third number of electrolytic cells that will enter standby state from production at the next moment is determined; according to the number of electrolytic cells in standby state at the current moment and the number of electrolytic cells that will be in standby state at the next moment, the fourth number of electrolytic cells that will enter shutdown state from standby state at the next moment is determined; at the next moment, according to the scheduling number of each electrolytic cell in production state, the third number of electrolytic cells with the latter number are put into standby state, and according to the scheduling number of each electrolytic cell in standby state, the fourth number of electrolytic cells with the latter number are put into shutdown state.

[0083] Specifically, if the predicted power generation at the next moment is not greater than the system standby power, it means that even if all the electrolyzers in production state enter standby state at the next moment, the input power generated by the power supply device cannot support the power required by each electrolyzer. In order to ensure that the multi-tank parallel hydrogen production system continuously electrolyzes water to produce hydrogen, at least one electrolyzer must be kept in production state. Therefore, the number of electrolyzers in production state and the number of electrolyzers in standby state at the next moment are determined according to the preset principles. In combination with the number of electrolyzers in production state and the number of electrolyzers in standby state at the current moment, the number of electrolyzers that will enter standby state from production state and the number of electrolyzers that will enter shutdown state from standby state at the next moment are determined. During the scheduling process, the electrolyzers that need to change their working state are determined according to the scheduling number. After the working state of each electrolyzer is adjusted at the next moment, according to the following example: Figure 6The electrolyzer efficiency curve shown allocates the power of the electrolyzer in production with the goal of maximizing hydrogen production. The specific allocation method is a mature existing technology and will not be described in detail here.

[0084] To supplement, if the predicted power generation at the next moment is less than the system rated power and greater than the system minimum production power, the working state of each electrolyzer remains unchanged, and the power of the electrolyzer in production is allocated according to the electrolyzer efficiency curve with the goal of maximizing hydrogen production. The specific allocation method is a mature existing technology and will not be described in detail here.

[0085] The operation scheduling method for a multi-tank parallel hydrogen production system provided in this embodiment determines the number of electrolyzers that switch from a production state to a standby state and the number of electrolyzers that switch from a standby state to a shutdown state by predicting the power generation power and the system standby power when the power generation power is predicted to be very small. Similarly, the electrolyzers that need to be adjusted are determined according to the scheduling numbers of the electrolyzers in each state, thereby improving the imbalance in the cumulative operating time of each electrolyzer and increasing the life of the multi-tank parallel hydrogen production system.

[0086] In a specific embodiment, the multi-tank parallel hydrogen production system includes n electrolyzers, the rated power of the electrolyzer is 100kW, the minimum power is 20kW, and the standby power is 10kW. At present, there are 5 electrolyzers in working state, 2 electrolyzers in standby state, and n-2-5 electrolyzers in shutdown state.

[0087] At the current moment, the system rated power of the multi-tank parallel hydrogen production system is (5+2)×100=700kW, the system minimum production power is 5×20+2×10=120kW, and the system standby power is (5+2)×10=70kW.

[0088] (1) If the power generation is predicted at the next moment is 750kW, then >700kW, according to formula (1), the first number of electrolyzers entering the standby state from the shutdown state is:

[0089] When m is an integer, it is 1, and at this time, one electrolytic cell in shutdown state needs to be preheated.

[0090] (2) If the power generation is predicted at the next moment is 100kW, then 70kW< <120kW, according to formula (2), the second number of electrolyzers entering the standby state from the production state is:

[0091] At this time, the two electrolytic cells in production need to be put into standby mode.

[0092] (3) If the power generation is predicted at the next moment is 65kW, then <70kW, then the predicted power generation at the next moment can only maintain a maximum of 5 electrolyzers in production or standby state. According to the preset principle of formula (3): , it is determined that the number of electrolytic cells in production state at the next moment is 1, and the number of electrolytic cells in standby state at the next moment is 4.

[0093] (4) If the predicted power generation at the next moment is less than the system rated power and greater than the system minimum production power, it means that the predicted power generation at the next moment and the power required to be consumed by each electrolytic cell can offset each other, and there is no need to adjust the working state of the electrolytic cell.

[0094] In this embodiment, an operation scheduling device for a multi-tank parallel hydrogen production system is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0095] This embodiment provides an operation scheduling device for a multi-tank parallel hydrogen production system, wherein the multi-tank parallel hydrogen production system includes a plurality of parallel electrolyzers, and the multi-tank parallel hydrogen production system uses the electric energy generated by the power supply device to electrolyze water in each electrolyzer to produce hydrogen. Figure 7 As shown, the device comprises: The scheduling number update module 701 is used to obtain the historical data of each electrolytic cell and update the scheduling number of each electrolytic cell according to the historical data of each electrolytic cell. The scheduling number is used to characterize the scheduling priority of each electrolytic cell. The historical data includes the historical working status and historical accumulated operating time of each electrolytic cell.

[0096] The current data acquisition module 702 is used to obtain the working status of each electrolytic cell at the current moment and the predicted power generation power of the power supply device at the next moment.

[0097] The power parameter determination module 703 is used to determine the power parameters of the multi-tank parallel hydrogen production system at the current moment according to the working status of each electrolyzer at the current moment.

[0098] The working state scheduling module 704 is used to schedule the working state of each electrolyzer according to the working state and scheduling number of each electrolyzer at the current moment, based on the relationship between the predicted power generation power of the power supply device at the next moment and the power parameters of the multi-tank parallel hydrogen production system at the current moment.

[0099] In some optional implementations, the scheduling number updating module 701 includes: The average working time calculation unit is used to obtain the historical working status and historical cumulative operating time of each electrolytic cell, and calculate the average working time of each electrolytic cell.

[0100] The operation time analysis unit is used to calculate the difference between the historical cumulative operation time of each electrolytic cell and the average working time, and determine the number of electrolytic cells whose difference is greater than a preset time threshold.

[0101] The scheduling number updating unit is used to update the scheduling number of each electrolytic cell in ascending order according to the historical cumulative operating time of each electrolytic cell if the proportion of the number of electrolytic cells whose difference is greater than the preset time threshold to the total number of electrolytic cells is greater than the preset proportion threshold.

[0102] In some optional implementations, the current data acquisition module 702 includes: The historical power generation data acquisition unit is used to acquire the historical power generation data of the power supply device, wherein the historical power generation data includes a power generation curve and environmental data corresponding to the power supply device at different times.

[0103] The power prediction model building unit is used to build a power generation prediction model based on historical power generation data.

[0104] The power generation prediction unit is used to obtain the environmental data at the current moment, and use the power generation prediction model to predict the predicted power generation at the next moment based on the environmental data at the current moment.

[0105] In some optional implementations, the power parameter determination module 703 includes: The current state determination unit is used to determine the electrolytic cells in the production state and the standby state.

[0106] The system rated power determination unit is used to determine the system rated power of the multi-tank parallel hydrogen production system at the current moment according to the sum of the rated powers of the electrolytic cells in the production state and the standby state.

[0107] The system minimum production power determination unit is used to determine the system minimum production power of the multi-tank parallel hydrogen production system at the current moment based on the sum of the production power lower limits of each electrolyzer in the production state and the sum of the standby powers of each electrolyzer in the standby state.

[0108] The system standby power determination unit is used to determine the system standby power of the multi-tank parallel hydrogen production system at the current moment according to the sum of the standby powers of the electrolytic cells in the production state and the standby state.

[0109] In some optional implementations, the work status scheduling module 704 includes: The first scheduling unit is used to calculate the first power difference between the predicted power generation at the next moment and the system rated power if the predicted power generation at the next moment is greater than the system rated power; determine the first number of electrolytic cells that enter the standby state from the shutdown state according to the first power difference and the rated power of the electrolytic cell; and put the first number of electrolytic cells with the front numbers into the standby state according to the scheduling numbers of each electrolytic cell in the shutdown state.

[0110] The second scheduling unit is used to calculate the second power difference between the system minimum production power and the predicted power generation power at the next moment if the predicted power generation power at the next moment is greater than the system standby power and less than the system minimum production power; determine the second number of electrolytic cells entering the standby state from the production state according to the second power difference, the difference between the lower limit of the production power and the standby power; and make the second number of electrolytic cells with the later numbers enter the standby state at the next moment according to the scheduling numbers of each electrolytic cell in the production state.

[0111] The third scheduling unit is used to determine the number of electrolytic cells in production and the number of electrolytic cells in standby at the next moment according to a preset principle if the predicted power generation at the next moment is not greater than the system standby power; determine the third number of electrolytic cells that will enter the standby state from the production state at the next moment according to the number of electrolytic cells in production at the current moment and the number of electrolytic cells that will be in production at the next moment; determine the fourth number of electrolytic cells that will enter the shutdown state from the standby state at the next moment according to the number of electrolytic cells in standby at the current moment and the number of electrolytic cells that will be in standby at the next moment; at the next moment, the third number of electrolytic cells with a later number are put into the standby state according to the scheduling number of each electrolytic cell in the production state, and the fourth number of electrolytic cells with a later number are put into the shutdown state according to the scheduling number of each electrolytic cell in the standby state.

[0112] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0113] The operation scheduling device of the multi-tank parallel hydrogen production system in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0114] The embodiment of the present invention also provides a computer device having the above Figure 7 The operation scheduling device of the multi-tank parallel hydrogen production system is shown.

[0115] See also Figure 8 , Figure 8 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 8 As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 8 A processor 10 is taken as an example.

[0116] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0117] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0118] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0119] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0120] The computer device further comprises a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0121] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An operation scheduling method for a multi-tank parallel hydrogen production system, wherein the multi-tank parallel hydrogen production system comprises a plurality of parallel electrolyzers, and the multi-tank parallel hydrogen production system utilizes the electric energy generated by a power supply device to electrolyze water in each electrolyzer to produce hydrogen, characterized in that: The method comprises: Obtaining historical data of each electrolytic cell, and updating the scheduling number of each electrolytic cell according to the historical data of each electrolytic cell, wherein the scheduling number is used to characterize the scheduling priority of each electrolytic cell, and the historical data includes the historical working status and historical accumulated running time of each electrolytic cell; Obtain the working status of each electrolytic cell at the current moment and the predicted power generation power of the power supply device at the next moment; Determine the power parameter of the multi-tank parallel hydrogen production system at the current moment according to the working state of each electrolyzer at the current moment; According to the relationship between the predicted power generation power of the power supply device at the next moment and the power parameters of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment.

2. The method according to claim 1, characterized in that: Obtain the historical data of each electrolytic cell, and update the dispatch number of each electrolytic cell according to the historical data of each electrolytic cell, including: Obtain the historical working status and historical cumulative operating time of each electrolytic cell, and calculate the average operating time of each electrolytic cell; Calculate the difference between the historical cumulative operating time of each electrolytic cell and the average operating time, and determine the number of electrolytic cells whose difference is greater than a preset time threshold; If the proportion of the number of electrolytic cells whose difference is greater than the preset time threshold to the total number of electrolytic cells is greater than the preset proportion threshold, the scheduling number of each electrolytic cell is updated in ascending order according to the historical cumulative running time of each electrolytic cell.

3. The method according to claim 2, characterized in that The method further comprises: Determine a maximum difference based on the difference between the historical cumulative operating time of each electrolytic cell and the average operating time; The next update time of the scheduling number of each electrolytic cell is determined according to the maximum difference.

4. The method according to claim 1, characterized in that Obtain the predicted power generation of the power supply device at the next moment, including: Acquire historical power generation data of the power supply device, wherein the historical power generation data includes a power generation curve and environmental data corresponding to the power supply device at different times; Establishing a power generation prediction model based on the historical power generation data; The environmental data at the current moment is acquired, and the predicted power generation power at the next moment is predicted using the power generation power prediction model according to the environmental data at the current moment.

5. The method according to claim 1 or 2, characterized in that: The working states of the electrolyzer include: production state, standby state, and shutdown state. The power parameters of the multi-tank parallel hydrogen production system include system rated power, system minimum production power, and system standby power. Determining the power parameters of the multi-tank parallel hydrogen production system at the current moment according to the working state of each electrolyzer at the current moment includes: Identify the electrolyzers in production and standby; Determine the system rated power of the multi-tank parallel hydrogen production system at the current moment according to the sum of the rated powers of the electrolytic cells in the production state and the standby state; Determine the system minimum production power of the multi-tank parallel hydrogen production system at the current moment according to the sum of the production power lower limits of each electrolyzer in the production state and the sum of the standby power of each electrolyzer in the standby state; The system standby power of the multi-tank parallel hydrogen production system at the current moment is determined according to the sum of the standby powers of the electrolytic cells in the production state and the standby state.

6. The method according to claim 5, characterized in that According to the relationship between the predicted power generation power of the power supply device at the next moment and the power parameter of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment, including: If the predicted power generation at the next moment is greater than the system rated power, calculating a first power difference between the predicted power generation at the next moment and the system rated power; Determining a first number of electrolytic cells that enter a standby state from a shutdown state according to the first power difference and the rated power of the electrolytic cells; According to the scheduling numbers of the electrolytic cells in the shutdown state, the first number of electrolytic cells with the highest numbers are put into the standby state.

7. The method according to claim 5, characterized in that According to the relationship between the predicted power generation power of the power supply device at the next moment and the power parameter of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment, and further comprising: If the next moment predicted power generation power is greater than the system standby power and less than the system minimum production power, then calculating a second power difference between the system minimum production power and the next moment predicted power generation power; Determine a second number of entering the standby state from the production state according to the second power difference, the difference between the production power lower limit and the standby power; According to the scheduling number of each electrolytic cell in the production state, the second number of electrolytic cells with the later number are put into the standby state at the next moment.

8. The method according to claim 5, characterized in that According to the relationship between the predicted power generation power of the power supply device at the next moment and the power parameter of the multi-tank parallel hydrogen production system at the current moment, the working state of each electrolyzer is scheduled according to the working state and scheduling number of each electrolyzer at the current moment, and further comprising: If the predicted power generation at the next moment is not greater than the system standby power, the number of electrolytic cells in production state and the number of electrolytic cells in standby state at the next moment are determined according to a preset principle, and the preset principle is: Among them, l t+1 Indicates the number of electrolytic cells in production at the next moment, s t+1 Indicates the number of electrolytic cells in standby state at the next moment, P S Indicates the standby power of the electrolyzer, P min Represents the lower limit of the production power of the electrolytic cell, P t+1 Indicates the predicted power generation at the next moment; Determine the third number of electrolytic cells that will enter the standby state from the production state at the next moment according to the number of electrolytic cells in the production state at the current moment and the number of electrolytic cells that will be in the production state at the next moment; determine the fourth number of electrolytic cells that will enter the shutdown state from the standby state at the next moment according to the number of electrolytic cells in the standby state at the current moment and the number of electrolytic cells that will be in the standby state at the next moment; At the next moment, the third number of electrolytic cells with the last number are put into standby state according to the scheduling number of each electrolytic cell in the production state, and the fourth number of electrolytic cells with the last number are put into shutdown state according to the scheduling number of each electrolytic cell in the standby state.

9. An operation scheduling device for a multi-tank parallel hydrogen production system, the multi-tank parallel hydrogen production system comprising a plurality of parallel electrolyzers, the multi-tank parallel hydrogen production system utilizing the electric energy generated by a power supply device to electrolyze water in each electrolyzer to produce hydrogen, characterized in that: The device comprises: A scheduling number updating module is used to obtain the historical data of each electrolytic cell and update the scheduling number of each electrolytic cell according to the historical data of each electrolytic cell, wherein the scheduling number is used to characterize the scheduling priority of each electrolytic cell, and the historical data includes the historical working status and historical accumulated running time of each electrolytic cell; The current data acquisition module is used to obtain the working status of each electrolytic cell at the current moment and the predicted power generation power of the power supply device at the next moment; A power parameter determination module, used to determine the power parameters of the multi-tank parallel hydrogen production system at the current moment according to the working state of each electrolyzer at the current moment; The working state scheduling module is used to schedule the working state of each electrolyzer according to the working state and scheduling number of each electrolyzer at the current moment, based on the relationship between the predicted power generation power of the power supply device at the next moment and the power parameters of the multi-tank parallel hydrogen production system at the current moment.

10. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method according to any one of claims 1 to 8 by executing the computer instructions.

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