Electrolytic cell cluster control method, electronic equipment and storage medium

Abstract

The invention provides an electrolytic bath cluster control method, electronic equipment and a storage medium. The method comprises the following steps: obtaining operation associated information of electrolytic baths of an electrolytic bath cluster; determining schedulable electrolytic cells in the electrolytic cell cluster based on the operation association information of the electrolytic cells; generating an initial control scheme of the schedulable electrolytic cells based on the total operation power of the electrolytic cells in the operation of the electrolytic cell cluster and the estimated power which can be provided by the energy system for the electrolytic cell cluster in the future time period; and based on a preset energy consumption model, optimizing the initial control scheme to obtain a target control scheme of the schedulable electrolytic cell. According to the method, the overall energy consumption of the electrolytic cell cluster can be reduced on the premise of meeting power matching.

Description

Technical Field

[0001] This application relates to the field of new energy technology, specifically to a method for controlling an electrolytic cell cluster, electronic equipment, and storage medium. Background Technology

[0002] With the development of new energy technologies, the installed capacity and power generation of new energy sources are constantly increasing. High-power water electrolysis hydrogen production equipment, as a means of power consumption, is increasingly being deployed near new energy power plants. Currently, the control of hydrogen production systems relies on average distribution or simple start-stop strategies to control the operation of electrolyzers. However, this control method does not consider the differences between different electrolyzers, easily leading to a deviation between the actual power consumed by the electrolyzers and the actual power generated by the new energy sources. This results in the need for wind and solar power curtailment, leading to lower system efficiency. Summary of the Invention

[0003] Embodiments of the present invention provide an electrolytic cell cluster control method, electronic device, and storage medium, which can improve the energy efficiency of the system.

[0004] In a first aspect, embodiments of the present invention provide a method for controlling an electrolytic cell cluster, the method comprising: Obtain operational association information of the electrolyzers in the electrolyzer cluster; Based on the operational association information of the electrolytic cells, the schedulable electrolytic cells in the electrolytic cell cluster are determined; Based on the total operating power of the electrolyzers in the electrolyzer cluster and the estimated power that the energy system can provide to the electrolyzer cluster in the future time period, an initial control scheme for the schedulable electrolyzers is generated. Based on a preset energy consumption model, the initial control scheme is optimized to obtain the target control scheme for the schedulable electrolyzer.

[0005] In some embodiments, the operational association information includes at least one of: operational status, continuous operating time, and continuous downtime; the schedulable electrolytic cell includes a first electrolytic cell with adjustable power and a second electrolytic cell that can be started; and determining the schedulable electrolytic cells in the electrolytic cell cluster based on the operational association information of the electrolytic cells includes: Determine whether the continuous operating time of the electrolytic cell in the operating state is greater than or equal to the preset minimum operating time. If so, then the electrolytic cell is determined as the first electrolytic cell. If the continuous downtime of the electrolytic cell in the operation state of shutdown is greater than or equal to the preset minimum downtime, then the electrolytic cell is identified as the second electrolytic cell.

[0006] In some embodiments, the initial control scheme includes at least one of the following: the first operating power corresponding to each of the first electrolytic cells, the target second electrolytic cell that needs to be started in the second electrolytic cells, or the target first electrolytic cell that needs to be shut down in the first electrolytic cells. The initial control scheme for the schedulable electrolyzers is generated based on the total operating power of the electrolyzers in operation within the electrolyzer cluster and the estimated power that the energy system can provide to the electrolyzer cluster in the future, including: Calculate the maximum power change that the first electrolytic cell can increase or decrease based on the maximum power change rate during the scheduling cycle; If the power value determined by the total operating power and the maximum power change of the first electrolytic cell matches the estimated power, then the operating power of the first electrolytic cell is adjusted to the first operating power so that the adjusted total operating power is equal to the estimated power. If the power value determined by the total operating power and the maximum power change of the first electrolytic cell does not match the estimated power, then the operating power of the first electrolytic cell is adjusted to the boundary operating power that can be reached within the scheduling cycle, at least one target second electrolytic cell in the second electrolytic cell is started or at least one target first electrolytic cell in the first electrolytic cell is stopped, and the total operating power of the currently operating electrolytic cells is equal to the estimated power.

[0007] In some embodiments, the operation association information includes the cumulative number of start-stop cycles, and the step of controlling at least one target second electrolytic cell in the second electrolytic cell to start or controlling at least one target first electrolytic cell in the first electrolytic cell to stop includes: Select one or more second electrolytic cells with the fewest cumulative start-stop counts as target second electrolytic cells; or select one or more first electrolytic cells with the fewest cumulative start-stop counts as target first electrolytic cells. Control the second electrolytic cell of the target to start or control the first electrolytic cell of the target to stop.

[0008] In some embodiments, during the process of controlling the start-up of the target second electrolytic cell, the method further includes: Determine the upper limit of the scheduling power that the operating electrolytic cell can reach within the scheduling cycle; A power limiting command is sent to the energy system to ensure that the output power of the energy system does not exceed the scheduling power limit before the target second electrolyzer is successfully started.

[0009] In some embodiments, controlling the total operating power of the currently operating electrolyzer to be equal to the estimated power includes: If the target second electrolytic cell is successfully started, a power recovery command is sent to the energy system to restore the output power of the energy system to the estimated power. Based on the estimated power, the operating power of the target second electrolytic cell and the first electrolytic cell is adjusted to the second operating power, so that the adjusted total operating power is equal to the estimated power.

[0010] In some embodiments, optimizing the initial control scheme based on a preset energy consumption model to obtain the target control scheme for the schedulable electrolyzer includes: Based on the operating power of each electrolytic cell after the execution of the initial control scheme, the total energy consumption of the electrolytic cell in operation under the execution of the initial control scheme is determined by the preset energy consumption model. Based on the preset energy consumption model, the total energy consumption of each candidate number of electrolyzers under the estimated power is calculated. A target number of operations is determined from the candidate number of operations. The initial control scheme is optimized based on the target number of operations to obtain the target control scheme for the schedulable electrolyzer, wherein the total energy consumption corresponding to the target number of operations is lower than the total energy consumption corresponding to the initial control scheme.

[0011] In some embodiments, the target control scheme includes a second target electrolytic cell that needs to be added and started. Optimizing the initial control scheme based on the target number of operations to obtain the target control scheme for the schedulable electrolytic cell includes: If the number of candidate operations is greater than the number of electrolytic cells included in the initial control scheme, then a first number of electrolytic cells that need to be added and started is determined, and the first number of electrolytic cells are selected from the second electrolytic cells in the schedulable electrolytic cells as the second target electrolytic cells. Control the start-up of the second target electrolytic cell; Based on the estimated power, the operating power of the second target electrolytic cell and the electrolytic cells included in the initial control scheme are controlled.

[0012] In some embodiments, the target control scheme includes a third target electrolyzer that needs to be shut down. Optimizing the initial control scheme based on the target number of operating cells to obtain the target control scheme for the schedulable electrolyzer includes: If the number of candidate operating cells is less than the number of electrolytic cells included in the initial control scheme, then a second number of electrolytic cells to be shut down is determined, and the second number of electrolytic cells is selected from the number of electrolytic cells included in the initial control scheme as the third target electrolytic cells. The third target electrolytic cell was shut down. Based on the estimated power, the operating power of the electrolytic cell included in the initial control scheme after shutdown is controlled.

[0013] In some embodiments, the energy consumption model is: E(P)=a*P2+b*P+c, where P is the operating power of the electrolytic cell in operation, E(P) is the energy consumption of the electrolytic cell in operation, and a, b, and c are preset coefficients.

[0014] In a second aspect, embodiments of the present invention provide an electronic device, the electronic device comprising: A memory on which computer programs are stored; A processor is configured to execute the computer program in the memory to implement the electrolytic cell cluster control method provided in any of the embodiments of this application.

[0015] Thirdly, embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to execute the electrolytic cell cluster control method provided in any of the embodiments of this application.

[0016] In embodiments of the present invention, schedulable electrolyzers are identified based on real-time operational information (such as operating status and operating power) of each electrolyzer, enabling control over the start-up, shutdown, and operating power of these schedulable electrolyzers. This allows the hydrogen production system to respond quickly and flexibly to changes in renewable energy power. Simultaneously, by combining the estimated power of the energy system for future time periods, the schedulable electrolyzers are dynamically adjusted to match fluctuations in renewable energy output, reducing wind and solar power curtailment and improving the utilization rate of renewable energy. Based on the initial control scheme, a preset energy consumption model is introduced for optimization to obtain the target control scheme, ensuring that the overall operating energy consumption of the electrolyzer cluster is minimized while meeting power matching requirements. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an application scenario diagram of the electrolytic cell cluster control method provided in the embodiments of the present invention; Figure 2 This is an exemplary flowchart of an electrolytic cell cluster control method provided in an embodiment of the present invention; Figure 3 This is an exemplary flowchart of the target control scheme provided in the embodiments of the present invention; Figure 4 This is an exemplary schematic diagram of an electrolytic cell cluster control device provided in an embodiment of the present invention; Figure 5 This is an exemplary schematic diagram of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention. In the present invention, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0020] Figure 1 This is an application scenario diagram of the electrolytic cell cluster control method shown in some embodiments of this specification.

[0021] The electrolyzer cluster control method provided in this application can be applied to scenarios such as hydrogen production from new energy sources. For example, in the Northwest region, which is rich in wind and solar resources, wind power or photovoltaic power plants are equipped with large-scale water electrolysis hydrogen production systems. Using the technical solution of this application, the start-up, shutdown, and power distribution of the electrolyzer cluster can be dynamically scheduled based on the predicted output of new energy sources in the next few hours. This maximizes the absorption of renewable energy while taking into account equipment lifespan and system energy efficiency.

[0022] The implementing entity of the technical solution in this application embodiment can be an electronic device, which can be executed by an electrolytic cell cluster control device. This electrolytic cell cluster control device can be implemented in hardware and / or software, and can be configured in any electronic device with network communication capabilities. The electronic device can also be a server, a terminal, or other similar device.

[0023] In some embodiments, such as Figure 1 As shown, application scenarios can include terminal devices and electrolytic cell clusters.

[0024] The terminal device is used to process information and / or data from other components or external data sources (e.g., cloud data centers). Based on this data, information, and / or processing results, the terminal device can execute program instructions to perform one or more functions described in this application. For example, the terminal device can acquire data uploaded by a user terminal (e.g., information related to an electrolytic cell cluster).

[0025] In some embodiments, the terminal device may include one or more sub-processing devices (e.g., a single-chip processing device or a multi-chip processing device). As an example only, the terminal device may include a Central Processing Unit (CPU), an Application-Specific Integrated Circuit (ASIC), a Graphics Processing Unit (GPU), a Digital Signal Processor (DSP), a Field-Programmable Gate Array (FPGA), a micro-terminal device, or any combination thereof.

[0026] In some embodiments, the terminal device may connect to a network to communicate with other components (e.g., user terminals, storage devices). In some embodiments, the terminal device may be integrated into or included in other components (e.g., user terminals). For example, the terminal device may be a computing device installed in a user terminal.

[0027] In some embodiments, the terminal device is responsible for controlling each electrolytic cell in the electrolytic cell cluster based on the operational association information of the electrolytic cell cluster.

[0028] In some embodiments, the application scenario may also include, for example, networks, storage devices, etc. Networks may include any suitable wired or wireless networks that facilitate the exchange of information and / or data. Storage devices are used to store data, instructions, and / or any other information.

[0029] It is important to note that the application scenarios of the electrolytic cell cluster control method are provided for illustrative purposes only and are not intended to limit the scope of this specification. Those skilled in the art can make various changes and modifications based on the description in this specification. For example, the application scenarios may also include databases, information sources, etc. Furthermore, the application scenarios may be implemented on other devices to achieve similar or different functions. However, these changes and modifications will not depart from the scope of this specification.

[0030] Figure 2This is an exemplary flowchart of an electrolytic cell cluster control method provided in an embodiment of the present invention. In some embodiments, process 200 can be executed based on electronic devices. Figure 2 As shown, process 200 includes the following steps.

[0031] Step 210: Obtain the operational association information of the electrolyzers in the electrolyzer cluster.

[0032] An electrolyzer cluster refers to a collection of multiple electrolyzers, which may be physically concentrated or distributed within the same hydrogen production system and coordinated by a control system. The control system can process data and / or information obtained from other equipment or system components. Based on this data, information, and / or processing results, the control system can execute program instructions to perform one or more functions described in the embodiments of this application.

[0033] Operational information refers to relevant information reflecting the operating status of each electrolytic cell. Specifically, operational information may include, but is not limited to: the current operating status of the electrolytic cell (e.g., in operation or shutdown), current operating power, continuous operating time or continuous shutdown time since the most recent state switch, cumulative operating time, cumulative number of start-ups and shutdowns, current startup stage (e.g., cold start or steady-state operation), and auxiliary parameters related to the health status of the equipment (e.g., temperature, pressure, voltage, current, etc.).

[0034] In some embodiments, operational information can be collected in real time by sensors, controllers or supervisory control systems configured on the electrolytic cell body and transmitted to the control system via communication networks (such as Modbus, OPC UA, etc.).

[0035] Step 220: Based on the operational association information of the electrolyzers, determine the schedulable electrolyzers in the electrolyzer cluster.

[0036] A schedulable electrolyzer is an electrolyzer whose power can be actively adjusted, started, stopped, or used for optimized allocation by the control system at any given moment.

[0037] In some embodiments, an electrolyzer that meets all schedulable conditions (including minimum running time, minimum downtime, cold start requirements, etc.) can be selected from the electrolyzer cluster as a schedulable electrolyzer.

[0038] Step 230: Based on the total operating power of the electrolyzers in the electrolyzer cluster and the estimated power that the energy system can provide to the electrolyzer cluster in the future time period, generate an initial control scheme for the schedulable electrolyzers.

[0039] The total operating power of an electrolytic cell in operation refers to the sum of the instantaneous operating power of all electrolytic cells in the electrolytic cell cluster that are in operation (i.e., not in standby or not shut down due to fault) at a certain moment.

[0040] Estimated power refers to the maximum available power that an energy system (including but not limited to wind power, photovoltaics, grid power purchase, energy storage discharge, etc.) can stably supply to the electrolyzer cluster within one or more future time windows (e.g., 5 minutes, 15 minutes, 1 hour, etc.).

[0041] The estimated power for a future time period can be a single power value, or the future time period can include multiple sub-time periods, and the estimated power for a future time period can be a sequence of power values ​​corresponding to different sub-time periods.

[0042] In some embodiments, the estimated power is generated based on a predictive model of the energy system. For example, the predictive model is used to process input data such as weather forecast data, photovoltaic panel tilt angle, module efficiency and historical irradiance to predict the photovoltaic power generation in the future time period as the estimated power.

[0043] The initial control scheme refers to the set of control parameters initially formulated for the dispatchable electrolyzers. This initial control scheme may include control parameters for starting up, stopping, increasing or decreasing power output of some of the dispatchable electrolyzers. Under the premise of meeting basic operational safety and equipment physical limitations, the scheme aims to ensure that the total power consumption of the electrolyzer cluster in the next scheduling cycle is as close as possible to the estimated power provided by the energy system, thereby achieving a balance between maximizing green energy consumption and minimizing operating costs. For example, the initial control scheme may include any one or a combination of identifiers for electrolyzers that need to be started, identifiers for electrolyzers that need to be stopped, and identifiers for electrolyzers that need to adjust their operating power, as well as the expected operating power for each electrolyzer.

[0044] In one specific implementation, the control system acquires the total operating power P_current of the currently running electrolyzers and reads the estimated power P_forecast(t) allocated by the energy system to the electrolyzer cluster within a future time period t. Subsequently, it calculates the power deviation ΔP = P_forecast(t). P_current. If ΔP>0, select electrolyzers that can be started or have adjustable power from the schedulable electrolyzers, and perform load increase or start-up operations according to preset strategies (such as efficiency priority, rotation balancing, response speed priority, etc.) to gradually increase the total operating power of the electrolyzer cluster until the added power is close to ΔP; if ΔP<0, select electrolyzers that can be shut down or have adjustable power to reduce load or shut down to gradually reduce the total operating power of the electrolyzer cluster. For example, reduce load or shut down electrolyzers with low efficiency, high redundancy, or nearing maintenance cycle to reduce hydrogen production loss and ensure the continuity of critical equipment operation.

[0045] Step 240: Based on the preset energy consumption model, optimize the initial control scheme to obtain the target control scheme for the schedulable electrolyzer.

[0046] An energy consumption model is a pre-established mathematical function used to characterize the energy consumption relationship per unit time of a single electrolytic cell under different operating power. The energy consumption model can be a polynomial function, a piecewise linear function, or an empirical model based on data fitting.

[0047] A target control scheme refers to the final set of control parameters obtained by adjusting the initial control scheme through optimization algorithms. For example, a target control scheme may include the target operating state of each electrolytic cell, the target operating power of the electrolytic cells in operation, etc.

[0048] In some embodiments, the operational association information includes at least one of: operational status, continuous operating time, and continuous downtime. The schedulable electrolytic cells include a first electrolytic cell with adjustable power and a second electrolytic cell that can be started. Based on the operational association information of the electrolytic cells, determining the schedulable electrolytic cells in the electrolytic cell cluster includes: Determine whether the continuous running time of the electrolytic cell in operation is greater than or equal to the preset minimum running time. If so, the electrolytic cell is determined as the first electrolytic cell. Determine whether the continuous downtime of the electrolytic cell in the shutdown state is greater than or equal to the preset minimum downtime. If so, the electrolytic cell is identified as the second electrolytic cell.

[0049] Operating status refers to the current working state of the electrolyzer. For example, operating status can include running (i.e., undergoing electrolysis reaction with power), shut down (i.e., not powered, in standby or cold standby state), and possibly in a fault or maintenance state. In an optional embodiment, the operating status can be determined by the control system based on whether the current signal, voltage signal, and hydrogen production signal exceed the corresponding threshold.

[0050] Continuous operating time refers to the cumulative duration of continuous operation of an electrolytic cell since its most recent switch from shutdown to operation. Continuous shutdown time refers to the cumulative duration of continuous shutdown of an electrolytic cell since its most recent switch from operation to shutdown.

[0051] The first electrolytic cell refers to the set of electrolytic cells currently in operation whose operating power can be adjusted. The second electrolytic cell refers to the set of electrolytic cells currently shut down but whose start-up can be controlled.

[0052] The preset minimum operating time and preset minimum downtime are pre-configured critical values ​​of the system, and their values ​​can be flexibly configured according to the specific type of electrolyzer (such as alkaline, PEM or SOEC) and actual conditions.

[0053] By introducing preset minimum operating time and preset minimum downtime, problems such as equipment aging and wear caused by frequent start-ups or premature adjustments are effectively avoided, improving the operational reliability and service life of the electrolyzer, while ensuring that the identified schedulable electrolyzer is physically feasible for adjustment.

[0054] In some embodiments, the initial control scheme includes at least one of the following: the first operating power corresponding to each first electrolytic cell, the target second electrolytic cell to be started in the second electrolytic cell, or the target first electrolytic cell to be shut down in the first electrolytic cell. Based on the total operating power of the electrolyzers in the electrolyzer cluster and the estimated power that the energy system can provide to the electrolyzer cluster in the future, an initial control scheme for the schedulable electrolyzers is generated, including: Calculate the maximum power change that the first electrolyzer can increase or decrease based on the maximum power change rate during the scheduling cycle; If the power value determined by the total operating power and the maximum power change of the first electrolytic cell matches the estimated power, then the operating power of the first electrolytic cell is adjusted to the first operating power so that the adjusted total operating power is equal to the estimated power. If the power value determined by the total operating power and the maximum power change of the first electrolytic cell does not match the estimated power, the operating power of the first electrolytic cell will be adjusted to the boundary operating power that can be achieved within the scheduling cycle, at least one target second electrolytic cell in the second electrolytic cell will be started or at least one target first electrolytic cell in the first electrolytic cell will be stopped, and the total operating power of the currently operating electrolytic cells will be equal to the estimated power.

[0055] Boundary operating power can include the maximum operating power achievable within the scheduling period or the minimum operating power achievable within the scheduling period. The maximum operating power and minimum operating power correspond to the cases where the estimated power is greater than the total operating power and the case where the estimated power is less than the total operating power, respectively.

[0056] When the estimated power cannot be fully matched within a single scheduling cycle, the system can be made to accurately match the estimated power of the energy system by using boundary operating power and starting / stopping the scheduling electrolyzers, thereby avoiding the problem of wind and solar curtailment and improving the system's robustness and adjustment flexibility.

[0057] In one specific embodiment, the initial control scheme includes the first sub-operating power corresponding to each first electrolytic cell, or the target second electrolytic cell that needs to be started in the second electrolytic cell; Based on the total operating power of the electrolyzers in the electrolyzer cluster and the estimated power that the energy system can provide to the electrolyzer cluster in the future, an initial control scheme for the schedulable electrolyzers is generated, including: When the estimated power is greater than the total operating power, calculate the maximum power increment that the first electrolytic cell can increase based on the ramp rate during the scheduling cycle. If the sum of the total operating power and each maximum power increment is greater than or equal to the estimated power, then the operating power of the first electrolytic cell is increased to the first sub-operating power so that the adjusted total operating power is equal to the estimated power. If the sum of the total operating power and the maximum power increments is less than the estimated power, the operating power of the first electrolytic cell is increased to the maximum operating power that it can reach within the scheduling cycle, and at least one target second electrolytic cell in the second electrolytic cell is started to adjust the operating power of the target second electrolytic cell and the first electrolytic cell so that the adjusted total operating power is equal to the estimated power.

[0058] Understandably, within a preset number of scheduling cycles, the current operating power of the first electrolyzer can be adjusted based on the ramp rate. If the adjusted total operating power is still less than the estimated power, the operating power of the first electrolyzer is increased to its maximum achievable operating power within the scheduling cycle. At least one target second electrolyzer is then started to adjust the operating power of both the target second electrolyzer and the first electrolyzer, ensuring that the adjusted total operating power equals the estimated power. The preset number can be determined based on experiments or experience.

[0059] The adjusted total operating power is determined by the total operating power of the previous scheduling cycle and the total increaseable power in the current scheduling cycle.

[0060] Different first electrolytic cells correspond to different maximum power increments.

[0061] The target second electrolytic cell refers to one or more second electrolytic cells selected from the set of second electrolytic cells.

[0062] The ramp rate refers to the maximum allowable increase in power of an electrolytic cell per unit time. The ramp rate can be determined experimentally or empirically; for example, 15 kW / s means the electrolytic cell can increase its operating power by a maximum of 15 kW per second. Within a given scheduling period (e.g., 15 seconds), the maximum power increment that a single first electrolytic cell can increase is the smaller of the product of its ramp rate and the scheduling period duration, and the difference between its maximum operating power and the current operating power, to ensure that operation does not exceed limits.

[0063] In some embodiments, the control system first calculates the total operating power at the current moment, which is the sum of the current operating power of all operating electrolytic cells (including but not limited to the first electrolytic cell); the control system iterates through all the first electrolytic cells and calculates the maximum power increment that each first electrolytic cell can increase within the current scheduling cycle: the maximum power increment is min(climb rate × scheduling cycle duration, operating power upper limit value). (Current power). The maximum power increment of all first electrolyzers is summed to obtain the total increase in power of the electrolyzer cluster without starting new equipment.

[0064] If the sum of the current total operating power and the total increaseable power is greater than or equal to the estimated power, the first sub-operating power is allocated to each first electrolytic cell according to the preset allocation strategy (such as proportional allocation, equal allocation, or minimum adjustment), so that the adjusted total operating power is equal to the estimated power.

[0065] In one specific embodiment, the initial control scheme includes the second sub-operating power corresponding to each first electrolytic cell, or the target first electrolytic cell that needs to be shut down. When the estimated power is less than the total operating power, calculate the maximum power reduction that each first electrolyzer can reduce based on the down-climb rate within the current scheduling cycle. If the difference between the total operating power and the reduction of each maximum power is less than or equal to the estimated power, then the operating power of the first electrolytic cell is reduced to the second sub-operating power so that the adjusted total operating power is equal to the estimated power.

[0066] In one specific embodiment, the control system calculates the maximum power reduction that each first electrolyzer can achieve based on the down-ramp rate within the current scheduling cycle. The maximum power reduction that a single first electrolyzer can achieve is the smaller of the product of the down-ramp rate (typically expressed in absolute value, e.g., 15 kW / s) and the scheduling cycle duration, and the difference between its current operating power and its minimum operating power limit. The maximum power reductions of all first electrolyzers are summed to obtain the total power reduction of the electrolyzer cluster without decommissioning new equipment.

[0067] Furthermore, if the difference between the total operating power and the total power reduction is still greater than the estimated power, then even if all first electrolyzers are reduced to their minimum achievable operating power within the current scheduling cycle, the total operating power will still be higher than the estimated power. In this case, the operating power of all first electrolyzers will be reduced to their respective minimum achievable operating power within the scheduling cycle.

[0068] In some embodiments, if the difference between the total operating power and the maximum power reduction of each electrolyzer is greater than the estimated power, the operating power of the first electrolyzer is reduced to the minimum operating power achievable within its respective scheduling cycle. At least one target first electrolyzer is then shut down to adjust the operating power of the remaining first electrolyzers, ensuring that the adjusted total operating power equals the estimated power. For example, for first electrolyzers that meet the shutdown conditions (i.e., their continuous operating time has exceeded a preset minimum operating time), one or more are selected as target first electrolyzers, and a shutdown operation is performed.

[0069] In some embodiments, if the difference between the total operating power and the total power reduction is greater than the estimated power, the operating power of the first electrolyzers is reduced to the minimum operating power achievable within each scheduling cycle. In the next scheduling cycle, the operating power of the first electrolyzers continues to be reduced based on the downslope rate. After a preset number of scheduling cycles, if the adjusted total operating power is still greater than the estimated power, the operating power of the first electrolyzers is reduced to the minimum operating power achievable within each scheduling cycle, and at least one target first electrolyzer is shut down to adjust the operating power of the remaining first electrolyzers so that the adjusted total operating power equals the estimated power. The preset number can be determined based on experiments or experience.

[0070] The adjusted total operating power is determined by the total operating power of the previous scheduling cycle and the total reducible power in the current scheduling cycle.

[0071] Different first electrolytic cells have different maximum power reduction rates.

[0072] It should be noted that the scheduling cycle refers to the maximum response time corresponding to the electrolyzer. The length of this cycle is determined by the real-time requirements of the control system, communication latency, the dynamic response capability of the electrolyzer, and computing resources.

[0073] The future timeframe refers to the time range covered by the estimated power provided by the energy system, and is typically used to describe the effective window of the estimated power. For example, an energy system can provide an estimated power sequence for the next hour based on a predictive model. The length of the future timeframe depends on the capabilities of the predictive model and the requirements of the scheduling strategy; the future timeframe can be longer than a single scheduling cycle.

[0074] The first operating power refers to the power value allocated to a specific electrolytic cell that should be reached before the end of the current scheduling cycle. The first operating power may include a first sub-operating power and a second sub-operating power. The first sub-operating power and the second sub-operating power correspond to the situations where the estimated power is greater than the total operating power and the estimated power is less than the total operating power, respectively.

[0075] It should be noted that the initial operating power of each first electrolytic cell can be the same or different, depending on the state differences of each first electrolytic cell and the scheduling strategy. In actual implementation, since the current operating power, rated capacity, aging degree, and cumulative start-stop count of each first electrolytic cell may differ, the control system can allocate the operating power of each first electrolytic cell differently according to preset rules. For example, when only power regulation needs to be met, the control system can distribute the power deviation that needs to be increased or decreased evenly across each first electrolytic cell.

[0076] Furthermore, even if all first electrolyzers are of the same model and under similar operating conditions, their maximum achievable operating power within a single scheduling cycle may differ due to variations in ramp rate limits and current operating power. Therefore, the allocated first operating power is not entirely consistent. For example, an electrolyzer currently operating at 60kW and another operating at 90kW, under a 15-second scheduling cycle and a maximum power change rate of 15kW / s, the former can increase to a maximum of 82.5kW (60 + 15 × 1.5), while the latter can only increase to 100kW (rated operating power, also known as the upper limit of operating power).

[0077] In some embodiments, under specific operating conditions, the first operating power corresponding to each first electrolytic cell can be set to the same value. For example, when all the first electrolytic cells in the electrolytic cell cluster have the same model, rated operating power, and operating records, the control system can distribute the estimated power equally to each first electrolytic cell, so that their respective operating power is equal to the average power value.

[0078] Specific operating conditions may include the following: the absolute value of the difference between the average power value and the current actual operating power of the first electrolyzer shall not exceed the maximum power change that it can achieve based on the maximum power change rate within the current scheduling cycle; the average power value shall not be higher than the upper limit of the operating power of the electrolyzer (e.g., 100kW); and the average power value shall not be lower than the lower limit of the allowed operating power of the electrolyzer (e.g., 10kW or 10% of the upper limit of the operating power).

[0079] For example, if the current power of a first electrolytic cell is 60kW, the maximum power change rate (e.g., uphill rate, downhill rate, etc.) is 15kW / s, and the scheduling cycle is 15 seconds, then a maximum of 225kW (15×15) can be added within this cycle. However, due to the upper limit of the operating power, the actual maximum power change is (100kW-60kW). If the average power is 90kW, then 30kW needs to be added, within the maximum power increment of 225kW.

[0080] The control system executes the equal power allocation strategy and issues the control command for the first operating power to each first electrolytic cell only when all three conditions mentioned above are met for all participating first electrolytic cells. If any one of the first electrolytic cells does not meet any of the conditions (for example, a cell cannot increase its power to the equal power value due to its current power being too high), the equal power allocation strategy is not executed.

[0081] In some embodiments, the operation association information includes the cumulative number of start-stop cycles, controlling the start of at least one target second electrolytic cell in the second electrolytic cell or controlling the deactivation of at least one target first electrolytic cell in the first electrolytic cell, including: Select one or more second electrolytic cells with the fewest cumulative start-stop counts as target second electrolytic cells; or select one or more first electrolytic cells with the fewest cumulative start-stop counts as target first electrolytic cells. The control target is to start the second electrolytic cell or to stop the first electrolytic cell.

[0082] Prioritize the activation or deactivation of electrolytic cells with the fewest cumulative start-stop cycles to prevent premature aging and failure of some electrolytic cells, reduce maintenance costs, and improve equipment availability.

[0083] In some embodiments, during the start-up of the target second electrolytic cell, the method further includes: Determine the upper limit of the scheduling power that the operating electrolyzer can reach within the scheduling cycle; Send a power limiting command to the energy system so that the output power of the energy system does not exceed the dispatch power limit before the target second electrolyzer is successfully started.

[0084] The scheduling power limit refers to the maximum total operating power that the electrolytic cell cluster can currently absorb before the target second electrolytic cell is successfully started.

[0085] In some embodiments, the upper limit of the scheduling power is determined based on the maximum operating power of the first electrolytic cell and the current operating power of the third electrolytic cell; the third electrolytic cell is the electrolytic cell other than the first electrolytic cell among the operating electrolytic cells.

[0086] Power limiting commands are control signals sent by the control system of an electrolyzer cluster to its coupled energy system (such as a wind farm, a photovoltaic power station, or its associated energy management system) to constrain the actual power output of the energy system within a specific time period.

[0087] For example, after determining that the target second electrolytic cell needs to be started to address the power deviation, during the process of controlling the start-up of the target second electrolytic cell, the control system divides the operating electrolytic cells into first and third electrolytic cells based on their operational correlation information. For each first electrolytic cell, the maximum operating power that the first electrolytic cell can reach before the end of the current scheduling cycle is calculated. This maximum operating power is the smaller value between the current operating power plus the maximum power change and the upper limit of the operating power. The maximum operating power of all first electrolytic cells is summed to obtain the first power upper limit of the adjustable portion. At the same time, the current operating power of all third electrolytic cells is accumulated to obtain the second power upper limit of the non-adjustable portion. The first power upper limit and the second power upper limit are added together to obtain the scheduling power upper limit of the current electrolytic cell cluster.

[0088] By calculating the upper limit of the scheduling power and sending a power limiting command to the energy system during the startup of the second target electrolyzer, the contradiction between power matching during the cold start process (e.g., 60 seconds) and the scheduling cycle (e.g., 15 seconds) is resolved. Before the new electrolyzer consumes electrical power, the output of the energy system is limited to prevent overvoltage, frequency instability or equipment damage caused by insufficient load, thus ensuring the safe and stable operation of the electro-hydrogen coupling system.

[0089] In some embodiments, controlling the total operating power of the currently operating electrolyzer to equal the estimated power includes: If the second electrolyzer is successfully started, a power recovery command is sent to the energy system to restore the output power of the energy system to the estimated power. Based on the estimated power, the operating power of the target second electrolytic cell and the first electrolytic cell is adjusted to the second operating power, so that the adjusted total operating power is equal to the estimated power.

[0090] The second operating power refers to the power recalculated and allocated to each operating electrolytic cell after the target second electrolytic cell has been successfully started up, in order to achieve a total operating power equal to the estimated power.

[0091] For example, the currently operating electrolytic cells are identified, including all first electrolytic cells and at least one target second electrolytic cell that has been successfully started. Based on a preset strategy (e.g., equal distribution, energy efficiency priority, or equipment usage intensity), and under the premise of satisfying all schedulable conditions, a set of second operating power is calculated such that the total operating power equals the estimated power. For instance, if the estimated power is 720kW and there are 8 operating electrolytic cells (6 original first electrolytic cells + 2 newly started target second electrolytic cells), then the operating power of each electrolytic cell can be allocated to 90kW.

[0092] After the second target electrolyzer is successfully started, the energy output is restored to the estimated power, and the power of all operating electrolyzers is redistributed to the second operating power to ensure that renewable energy is maximized immediately after startup, reducing power curtailment. At the same time, the power redistribution maintains precise matching of total power, improving system response accuracy and energy utilization efficiency.

[0093] Figure 3 This is an exemplary flowchart illustrating the determination of a target control scheme provided in embodiments of the present invention. In some embodiments, process 300 may be executed based on an electronic device. Figure 3 As shown, process 300 includes the following steps.

[0094] In some embodiments, based on a preset energy consumption model, the initial control scheme is optimized to obtain a target control scheme for the schedulable electrolyzer, including: Step 310: Based on the operating power of each electrolytic cell after the execution of the initial control scheme, determine the total energy consumption of the electrolytic cell in operation under the execution of the initial control scheme through a preset energy consumption model. Step 320: Based on the preset energy consumption model, calculate the total energy consumption of each candidate number of electrolyzers under the estimated power. Step 330: Determine the target number of operations among the candidate number of operations, optimize the initial control scheme based on the target number of operations, and obtain the target control scheme for the schedulable electrolyzer, wherein the total energy consumption corresponding to the target number of operations is lower than the total energy consumption corresponding to the initial control scheme.

[0095] Based on the initial control scheme, a preset energy consumption model is introduced. By comparing the total energy consumption under different candidate operating numbers, the target operating number with the lowest energy consumption is selected for optimization.

[0096] In some embodiments, the target control scheme includes a second target electrolyzer that needs to be added and started. The initial control scheme is optimized based on the target number of operating cells to obtain a target control scheme for schedulable electrolyzers, including: If the number of candidate operations is greater than the number of electrolyzers included in the initial control scheme, then the first number of electrolyzers that need to be added and started is determined, and the first number of electrolyzers are selected from the second number of schedulable electrolyzers as the second target electrolyzers. Control the start-up of the second target electrolytic cell; Based on the estimated power, the operating power of the second target electrolytic cell and the electrolytic cells included in the initial control scheme are controlled.

[0097] In some embodiments, the target control scheme includes a third target electrolyzer that needs to be shut down. The initial control scheme is optimized based on the target number of operating cells to obtain a target control scheme for schedulable electrolyzers, including: If the number of candidate operating cells is less than the number of electrolyzers included in the initial control scheme, then a second number of electrolyzers that need to be shut down is determined, and the second number of electrolyzers is selected from the number of electrolyzers included in the initial control scheme as the third target electrolyzers. The third target electrolytic cell was shut down. Based on the estimated power, the operating power of the electrolyzer included in the initial control scheme after shutdown is controlled.

[0098] In some embodiments, the energy consumption model is: E(P)=a*P2+b*P+c, where P is the operating power of the electrolytic cell, E(P) is the energy consumption of the electrolytic cell, and a, b, and c are preset coefficients.

[0099] In some embodiments, the preset energy consumption model is a function of the operating power P, for example, a quadratic function E(P) = aP² + bP + c, where E(P) represents the energy consumption per unit time (in kWh) of a single operating electrolytic cell at an operating power of P (in kW), and a, b, and c are coefficients obtained through experimental calibration or fitting of historical data. Substituting the operating power of each operating electrolytic cell in the initial control scheme into this energy consumption model yields the energy consumption of each operating electrolytic cell. The sum of the energy consumption of each operating electrolytic cell is then calculated to obtain the total energy consumption when executing the initial control scheme.

[0100] Understandably, the energy consumption model is the same for each electrolytic cell.

[0101] The candidate number of operating cells refers to the different possible values ​​of the number of electrolytic cells that can be put into operation, provided that the total power equals the estimated power. For example, if the estimated power is 720kW and the upper limit of the operating power of a single electrolytic cell is 100kW, then the selectable candidate number of operating cells includes 8 (90kW / cell), 9 (80kW / cell), 10 (72kW / cell), etc., as long as the allocated power of the candidate number of operating cells is not lower than the minimum operating power limit (e.g., 10kW) and does not exceed the maximum operating power limit (e.g., 100kW). For each candidate number of operating cells N, the estimated power is allocated to N schedulable electrolytic cells according to equal distribution or other methods, and then the total energy consumption of the N electrolytic cells under the corresponding allocated power is calculated using the energy consumption model described above.

[0102] In some embodiments, the total energy consumption corresponding to all candidate operating numbers is compared, and a target operating number that minimizes total energy consumption is determined. Since the energy consumption characteristics of electrolyzers are typically non-linear (e.g., efficiency decreases significantly in low-load areas), there exists an optimal operating number that minimizes the overall energy consumption of the cluster. For example, the total energy consumption of 10 electrolyzers each operating at 72kW (72% load) is lower than that of 8 electrolyzers each operating at 90kW (90% load).

[0103] In some embodiments, the initial control scheme is adjusted based on the target number of operating cells: if the target number of operating cells is greater than the number of electrolytic cells in the initial control scheme, an additional schedulable second electrolytic cell is started; if the target number of operating cells is less than the number of electrolytic cells in the initial control scheme, some first electrolytic cells are shut down. After all newly added or retained electrolytic cells have been started up or are running stably, their power is uniformly adjusted to a target power (e.g., 72kW / unit) that matches the target number of operating cells, so that the total operating power is still equal to the estimated power, while the total energy consumption is lower than that of the initial control scheme.

[0104] It should be noted that the above description of the process is for illustrative purposes only and does not limit the scope of this specification. Those skilled in the art can make various modifications and changes to the process under the guidance of this specification. However, these modifications and changes remain within the scope of this specification.

[0105] In a specific embodiment of the present invention, a 1MW hydrogen production system consisting of 10 electrolyzers, each with an upper limit of 100kW operating power, is used as an example. This system is used to absorb fluctuating renewable energy sources such as wind and solar power, and needs to respond to a power demand of 720kW at a certain dispatch time. All electrolyzers have the same energy consumption characteristics, and the relationship between their energy consumption per unit time and operating power is obtained by fitting a quadratic function, specifically expressed as: E(P) = 0.0103 × P 2 +4.2327×P+0.9321, where E(P) represents the energy consumption (kWh) of a single electrolyzer when operating at a power of P (kW). This energy consumption model, which serves as the basis for subsequent energy efficiency optimization, has been pre-calibrated and stored in the control system.

[0106] The system operation must meet the following constraints: the lower limit of operating power P_min = 10kW (10% of the total power).

[0107] The maximum operating power is P_max = 100kW; Maximum power change rate Ramp_max = 15kW / s; Cold start time: 60 seconds; Scheduling cycle: 15 seconds (the total operating power needs to be adjusted to the estimated power within 15 seconds; if the analysis shows that this cannot be achieved, power limiting of the energy system is required). Minimum runtime T_min_on = 0.5h; Minimum downtime T_min_off = 0.3h.

[0108] Before scheduling begins, the operational information of each electrolytic cell is first obtained. For example, the initial state of the electrolytic cells is shown in Table 1: Table 1

[0109] Please refer to Table 1. Initially, electrolytic cells 1, 2, 4, 6, 7, and 9 are in operation, with current operating power of 80kW, 70kW, 65kW, 75kW, 72kW, and 68kW respectively, and continuous operating time greater than 0.5 hours. Electrolytic cells 3, 5, 8, and 10 are in shutdown state, with continuous shutdown times of 2.0 hours, 1.5 hours, 3.0 hours, and 2.5 hours respectively, all greater than 0.3 hours. Therefore, all 10 electrolytic cells meet the scheduling criteria. The 6 operating electrolytic cells are identified as the first electrolytic cells, and the 4 shutdown electrolytic cells are identified as the second electrolytic cells.

[0110] The estimated power provided by the energy system is 720kW, and based on the current total operating power of 430kW, the power deviation is calculated to be 290kW. For each of the six first electrolyzers, the maximum power increment that can be increased within a 15-second scheduling cycle is calculated. This maximum power increment is limited by the maximum ramp rate (15kW / s × 15s = 225kW) and the margin between the upper limit of the operating power and the current operating power. The calculated power increases for each first electrolyzer are 20kW, 30kW, 35kW, 25kW, 28kW, and 32kW, totaling 170kW. Since 170kW is less than the 290kW shortfall, it is determined that the estimated power of 720kW cannot be fully responded to within the current scheduling cycle.

[0111] Furthermore, an initial control scheme is generated: the power of all six first electrolyzers is increased to 100kW, so that the current achievable scheduling power limit reaches 600kW; at the same time, the second electrolyzers with the fewest cumulative start-stop times, No. 10 (25 times) and No. 5 (30 times), are selected as target second electrolyzers, and a start command is immediately issued to put them into a 60-second cold start process; during the 60-second cold start process, a power limiting command is sent to the energy system to limit its operating power to 600kW to match the current actual load capacity.

[0112] During the cold start process (T0 to T0+60 seconds), the system executes a scheduling cycle every 15 seconds to maintain the six first electrolyzers at full load of 100kW, while the target second electrolyzer has no power output. The energy system is continuously limited to 600kW, and the total power of the system remains stable at 600kW.

[0113] Once the cold start is complete (T0+60 seconds), target second electrolytic cells 5 and 10 enter the operating state. At this time, the system removes power limitations, allowing the energy system to resume its estimated output power of 720kW and enter power redistribution. Currently, there are 8 operating electrolytic cells (the original 6 first electrolytic cells + the 2 newly started target second electrolytic cells). To achieve a total power of 720kW, the target power for each operating electrolytic cell is set at 90kW. Considering ramp-up constraints, the original 6 electrolytic cells reduce their power from 100kW to 90kW in approximately 0.67 seconds; the 2 newly started electrolytic cells ramp up from 0kW to 90kW in 6 seconds at a ramp rate of 15kW / s. During the transition period (0–6 seconds), the total system power linearly increases from 540kW to 720kW; after 6 seconds, all 8 electrolytic cells are operating stably at 90kW, with the total power precisely matched to 720kW.

[0114] Furthermore, the energy efficiency of the current initial control scheme is evaluated based on a preset energy consumption model. The total energy consumption of the 8-unit × 90kW configuration is calculated to be 3722kWh, while the total energy consumption of the 10-unit × 72kW configuration is 3590kWh. Since the latter has lower total energy consumption, the system continues to start the remaining schedulable second electrolyzers, No. 3 and No. 8. After their cold start-up is completed, the power of all 10 electrolyzers is uniformly adjusted to 72kW, ultimately forming the target control scheme with a total operating power of 720kW and the lowest total energy consumption. The entire process follows the equipment operating constraints, realizing phased collaborative control from rapid response to optimal energy efficiency.

[0115] Figure 4 This is a structural schematic diagram of an electrolytic cell cluster control device according to some embodiments of this specification.

[0116] like Figure 4 As shown in the diagram, one or more embodiments of this specification also provide a structural schematic of an electrolytic cell cluster control device. This electrolytic cell cluster control device may include: Module 401 is used to obtain the operational association information of the electrolyzers in the electrolyzer cluster; The determination module 402 is used to determine the schedulable electrolyzers in the electrolyzer cluster based on the operation association information of the electrolyzers; The first control module 403 is used to generate an initial control scheme for the schedulable electrolyzers based on the total operating power of the electrolyzers in operation of the electrolyzer cluster and the estimated power that the energy system can provide to the electrolyzer cluster in the future. The second control module 404 is used to optimize the initial control scheme based on a preset energy consumption model to obtain the target control scheme for the schedulable electrolyzer.

[0117] The acquisition module 401, determination module 402, first control module 403, and second control module 404 can be used to execute the embodiments of the above-mentioned electrolytic cell cluster control method. For the specific implementation methods of these modules and more details, please refer to the corresponding method section, which will not be elaborated here.

[0118] In some embodiments of this application, the electrolytic cell cluster control device can be implemented as a computer program, which can be implemented in, for example... Figure 5 The device operates on the electronic equipment shown. The memory of the electronic equipment can store various program modules that make up the electrolytic cell cluster control device. The computer program composed of these program modules causes the processor to execute the steps in the electrolytic cell cluster control methods of the various embodiments of this application described in this specification.

[0119] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0120] Figure 5 This is a schematic diagram of the structure of an electronic device according to some embodiments of this specification.

[0121] This application embodiment also provides an electronic device 500, which may include components such as a processor 501 with one or more processing cores, a memory 502 with one or more computer-readable storage media, a power supply 503, and an input unit 504. Those skilled in the art will understand that... Figure 5 The electronic device structure shown does not constitute a limitation on the electronic device and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein: Processor 501 is the control center of the electrolytic cell cluster. It connects various parts of the electronic equipment via various interfaces and lines. By running or executing software programs and / or modules stored in memory 502, and by calling data stored in memory 502, it performs various functions and processes data, thereby providing overall monitoring of the electronic equipment. It is understood that processor 501 communicates with the controller via signal transmission. Optionally, processor 501 may include one or more processing cores; preferably, processor 501 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into processor 501.

[0122] The memory 502 can be used to store software programs and modules. The processor 501 executes various functional applications and data processing by running the software programs and modules stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 502 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 501 with access to the memory 502.

[0123] The electronic device includes a processor, memory, and a network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface is used to communicate with external electronic devices via a network connection. When the computer program is executed by the processor, it implements a method for controlling an electrolytic cell cluster.

[0124] The electronic device also includes a power supply 503 that supplies power to various components. Preferably, the power supply 503 can be logically connected to the processor 501 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 503 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0125] The electronic device may also include an input unit 504, which can be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0126] Although not shown, the electronic device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 501 in the electronic device loads the executable files corresponding to the processes of one or more application programs into the memory 502 according to computer instructions, and the processor 501 runs the application programs stored in the memory 502 to realize various functions, such as the electrolytic cell cluster control method of various embodiments of this application described in this specification.

[0127] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0128] It should be noted that, Figure 5 This is merely one implementation of the electronic device 500 provided in this application embodiment. In actual applications, the electronic device 500 may include more or fewer components, which is not limited here.

[0129] It should be understood that the various solutions in the embodiments of this application can be used in a reasonable combination, and the explanations or descriptions of the various terms appearing in the embodiments can be referenced or explained to each other in the various embodiments, without limitation.

[0130] It should also be understood that, in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0131] Based on the above embodiments and the same concept, this application also provides a computer-readable storage medium storing a computer program that, when run on a computer, causes the computer to perform the method provided in the above embodiments.

[0132] Based on the above embodiments and the same concept, this application also provides a computer program product, including a computer program or instructions, which, when executed by a processor, performs the method provided in the above embodiments.

[0133] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0134] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict. Although the descriptions of each embodiment in this application have different emphases, and parts not described in detail in a certain embodiment can be referred to in the relevant embodiments of other embodiments, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

[0135] The embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for controlling an electrolytic cell cluster, characterized in that, The method includes: Obtain operational association information of the electrolyzers in the electrolyzer cluster; Based on the operational association information of the electrolytic cells, the schedulable electrolytic cells in the electrolytic cell cluster are determined; Based on the total operating power of the electrolyzers in the electrolyzer cluster and the estimated power that the energy system can provide to the electrolyzer cluster in the future time period, an initial control scheme for the schedulable electrolyzers is generated. Based on a preset energy consumption model, the initial control scheme is optimized to obtain the target control scheme for the schedulable electrolyzer.

2. The electrolytic cell cluster control method according to claim 1, characterized in that, The operational association information includes at least one of: operational status, continuous operating time, and continuous downtime. The schedulable electrolytic cell includes a first electrolytic cell with adjustable power and a second electrolytic cell that can be started. Determining the schedulable electrolytic cells in the electrolytic cell cluster based on the operational association information of the electrolytic cells includes: Determine whether the continuous operating time of the electrolytic cell in the operating state is greater than or equal to the preset minimum operating time. If so, then the electrolytic cell is determined as the first electrolytic cell. If the continuous downtime of the electrolytic cell in the operation state of shutdown is greater than or equal to the preset minimum downtime, then the electrolytic cell is identified as the second electrolytic cell.

3. The electrolytic cell cluster control method according to claim 2, characterized in that, The initial control scheme includes at least one of the following: the first operating power corresponding to each of the first electrolytic cells, the target second electrolytic cell that needs to be started in the second electrolytic cells, or the target first electrolytic cell that needs to be stopped in the first electrolytic cells. The initial control scheme for the schedulable electrolyzers is generated based on the total operating power of the electrolyzers in operation within the electrolyzer cluster and the estimated power that the energy system can provide to the electrolyzer cluster in the future, including: Calculate the maximum power change that the first electrolytic cell can increase or decrease based on the maximum power change rate during the scheduling cycle; If the power value determined by the total operating power and the maximum power change of the first electrolytic cell matches the estimated power, then the operating power of the first electrolytic cell is adjusted to the first operating power so that the adjusted total operating power is equal to the estimated power. If the power value determined by the total operating power and the maximum power change of the first electrolytic cell does not match the estimated power, then the operating power of the first electrolytic cell is adjusted to the boundary operating power that can be reached within the scheduling cycle, at least one target second electrolytic cell in the second electrolytic cell is started or at least one target first electrolytic cell in the first electrolytic cell is stopped, and the total operating power of the currently operating electrolytic cells is equal to the estimated power.

4. The electrolytic cell cluster control method according to claim 3, characterized in that, The operational association information includes the cumulative number of start-stop cycles. Controlling the start of at least one target second electrolytic cell in the second electrolytic cell or controlling the shutdown of at least one target first electrolytic cell in the first electrolytic cell includes: Select one or more second electrolytic cells with the fewest cumulative start-stop counts as target second electrolytic cells; or select one or more first electrolytic cells with the fewest cumulative start-stop counts as target first electrolytic cells. Control the second electrolytic cell of the target to start or control the first electrolytic cell of the target to stop.

5. The electrolytic cell cluster control method according to claim 3, characterized in that, During the process of controlling the start-up of the target second electrolytic cell, the method further includes: Determine the upper limit of the scheduling power that the operating electrolytic cell can reach within the scheduling cycle; A power limiting command is sent to the energy system to ensure that the output power of the energy system does not exceed the scheduling power limit before the target second electrolyzer is successfully started.

6. The electrolytic cell cluster control method according to claim 5, characterized in that, The control of the total operating power of the currently operating electrolyzer to be equal to the estimated power includes: If the target second electrolytic cell is successfully started, a power recovery command is sent to the energy system to restore the output power of the energy system to the estimated power. Based on the estimated power, the operating power of the target second electrolytic cell and the first electrolytic cell is adjusted to the second operating power, so that the adjusted total operating power is equal to the estimated power.

7. The electrolytic cell cluster control method according to any one of claims 1 to 6, characterized in that, The initial control scheme is optimized based on a preset energy consumption model to obtain the target control scheme for the schedulable electrolyzer, including: Based on the operating power of each electrolytic cell after the execution of the initial control scheme, the total energy consumption of the electrolytic cell in operation under the execution of the initial control scheme is determined by the preset energy consumption model. Based on the preset energy consumption model, the total energy consumption of each candidate number of electrolyzers under the estimated power is calculated. A target number of operations is determined from the candidate number of operations. The initial control scheme is optimized based on the target number of operations to obtain the target control scheme for the schedulable electrolyzer, wherein the total energy consumption corresponding to the target number of operations is lower than the total energy consumption corresponding to the initial control scheme.

8. The electrolytic cell cluster control method according to claim 7, characterized in that, The target control scheme includes a second target electrolytic cell that needs to be added and started. The optimization of the initial control scheme based on the target number of operations to obtain the target control scheme for the schedulable electrolytic cell includes: If the number of candidate operations is greater than the number of electrolytic cells included in the initial control scheme, then a first number of electrolytic cells that need to be added and started is determined, and the first number of electrolytic cells are selected from the second electrolytic cells in the schedulable electrolytic cells as the second target electrolytic cells. Control the start-up of the second target electrolytic cell; Based on the estimated power, the operating power of the second target electrolytic cell and the electrolytic cells included in the initial control scheme are controlled.

9. The electrolytic cell cluster control method according to claim 7, characterized in that, The target control scheme includes a third target electrolytic cell that needs to be shut down. The optimization of the initial control scheme based on the target number of operating cells to obtain the target control scheme for the schedulable electrolytic cells includes: If the number of candidate operating cells is less than the number of electrolytic cells included in the initial control scheme, then a second number of electrolytic cells to be shut down is determined, and the second number of electrolytic cells is selected from the number of electrolytic cells included in the initial control scheme as the third target electrolytic cells. The third target electrolytic cell is to be shut down. Based on the estimated power, the operating power of the electrolytic cell included in the initial control scheme after shutdown is controlled.

10. The electrolytic cell cluster control method according to any one of claims 1 to 6, characterized in that, The energy consumption model is: E(P) = a*P 2 +b*P+c, where P is the operating power of the electrolytic cell in operation, E(P) is the energy consumption of the electrolytic cell in operation, and a, b, and c are preset coefficients.

11. An electronic device, characterized in that, include: A memory on which computer programs are stored; A processor for executing the computer program in the memory to implement the steps of the method according to any one of claims 1 to 10.

12. A computer-readable storage medium, characterized in that, It stores a computer program thereon, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 10.

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