Electrolytic cell control methods, apparatus, computer equipment and storage media

Abstract

This application relates to an electrolytic cell control method, apparatus, computer equipment, and storage medium, belonging to the field of electrolytic cell technology. The method includes: acquiring the output power of a target power source supplying power to a target electrolytic cell; determining the output power variation rate of the target power source based on the acquired output power; and determining a control method for the target electrolytic cell from a preset electrolytic cell control method based on the output power variation rate. The preset electrolytic cell control methods include methods that control the electrolytic cell using current and methods that control the electrolytic cell using voltage. Embodiments of this application can determine the control method of the target electrolytic cell based on fluctuations in the output power of the target power source, enabling the control method of the target electrolytic cell to adapt to the fluctuations in the output power of the target power source, thereby improving the real-time response of the electrolytic cell to changes in the output power of the target power source.

Description

Technical Field

[0001] This application relates to the field of electrolytic cell technology, and in particular to an electrolytic cell control method, apparatus, computer equipment, and storage medium. Background Technology

[0002] Hydrogen energy, possessing both energy and material properties, has become the optimal choice for decarbonization in transportation, power, construction, and chemical industries. Compared to traditional hydrogen production from fossil fuels, hydrogen production from renewable energy sources can help sectors that are difficult to decarbonize achieve economically feasible deep decarbonization. Simultaneously, hydrogen storage can decouple the production and utilization processes of renewable energy, enabling long-term, large-scale storage of renewable energy. Therefore, to achieve economically feasible deep decarbonization and large-scale hydrogen storage, it is necessary to utilize renewable energy for hydrogen production. Currently, renewable energy hydrogen production mainly involves connecting renewable energy power sources to electrolyze water using an electrolyzer.

[0003] In related technologies, the coupling connection between renewable energy power sources and electrolyzers typically involves controlling the electrolyzer using current control to meet the hydrogen production requirements of the electrolyzer.

[0004] However, due to the strong randomness and volatility of renewable energy, the related technologies that use current to control the electrolyzer make it difficult for the electrolyzer to respond in real time to changes in the output power of renewable energy sources. Summary of the Invention

[0005] Therefore, it is necessary to provide an electrolytic cell control method, apparatus, computer equipment, and storage medium to address the aforementioned technical problems.

[0006] Firstly, an electrolytic cell control method is provided, the method comprising:

[0007] The output power of the target power supply for the target electrolytic cell is obtained; the output power change rate of the target power supply is determined based on the obtained output power; and the control method for the target electrolytic cell is determined from the preset electrolytic cell control methods, which include the electrolytic cell control method using current and the electrolytic cell control method using voltage.

[0008] In one embodiment, the control method for the target electrolytic cell is determined from the preset electrolytic cell control methods based on the output power change rate, including: if the output power change rate is greater than the preset change rate threshold, then the method of controlling the electrolytic cell by voltage is used as the control method for the target electrolytic cell.

[0009] In one embodiment, the control method for the target electrolytic cell is determined from the preset electrolytic cell control methods based on the output power change rate, including: if the output power change rate is less than or equal to a preset change rate threshold, then the method of controlling the electrolytic cell using current is used as the control method for the target electrolytic cell.

[0010] In one embodiment, the method further includes: when the output power of the target power supply is lower than a preset power threshold, controlling the target electrolytic cell to enter a thermal shutdown state; when the target electrolytic cell is in a thermal shutdown state, supplying the target electrolytic cell with an idle voltage, the idle voltage being within a preset voltage range, the preset voltage range being greater than 0 and less than or equal to 1.3.

[0011] In one embodiment, supplying the target electrolytic cell idle voltage includes: supplying the target electrolytic cell idle voltage using the target power source.

[0012] In one embodiment, the target electrolyzer further includes an energy storage unit for supplying the target electrolyzer with an idle voltage, including: using the energy storage unit to supply the target electrolyzer with the idle voltage.

[0013] In one embodiment, the target power source is a power source generated using renewable energy, and the target electrolyzer is an electrolyzer used for water electrolysis.

[0014] Secondly, an electrolytic cell control device is provided, the device comprising:

[0015] The acquisition module is used to acquire the output power of the target power supply that supplies power to the target electrolytic cell; the first determination module is used to determine the output power change rate of the target power supply based on the acquired output power; the second determination module is used to determine the control method for the target electrolytic cell from a preset electrolytic cell control method based on the output power change rate, wherein the preset electrolytic cell control method includes a current-controlled electrolytic cell method and a voltage-controlled electrolytic cell method.

[0016] In one embodiment, the second determining module is specifically used to: if the output power change rate is greater than a preset change rate threshold, then use voltage-controlled electrolytic cell as the control method for the target electrolytic cell.

[0017] In one embodiment, the second determining module is specifically used to: if the output power change rate is less than or equal to a preset change rate threshold, then use the current-controlled electrolytic cell as the control method for the target electrolytic cell.

[0018] In one embodiment, the electrolytic cell control device further includes: a control module, configured to control the target electrolytic cell to enter a hot shutdown state when the output power of the target power supply is lower than a preset power threshold; and a power supply module, configured to supply the target electrolytic cell with an idle voltage when the target electrolytic cell is in a hot shutdown state, the idle voltage being within a preset voltage range, the preset voltage range being greater than 0 and less than or equal to 1.3.

[0019] In one embodiment, the power supply module is specifically used to: supply the target electrolytic cell idle voltage using the target power supply.

[0020] In one embodiment, the target electrolyzer further includes an energy storage unit, and the power supply module is specifically used to supply the target electrolyzer with the idle voltage using the energy storage unit.

[0021] In one embodiment, the target power source is a power source generated using renewable energy, and the target electrolyzer is an electrolyzer used for water electrolysis.

[0022] Thirdly, a computer device is provided, including a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps of the method described in any of the first aspects above.

[0023] Fourthly, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any one of the first aspects.

[0024] The beneficial effects of the technical solutions provided in this application include at least the following:

[0025] In this embodiment, firstly, the output power of the target power supply for the target electrolytic cell is obtained; secondly, based on the obtained output power, the rate of change of the target power supply's output power is determined; thirdly, based on the rate of change of the output power, a control method for the target electrolytic cell is determined from preset electrolytic cell control methods. The preset electrolytic cell control methods include methods that control the electrolytic cell using current and methods that control the electrolytic cell using voltage. The rate of change of the target power supply's output power characterizes the fluctuation of the target power supply's output power. This embodiment can determine the control method for the target electrolytic cell based on the fluctuation of the target power supply's output power, enabling the control method to adapt to the fluctuation of the target power supply's output power, thereby improving the real-time response of the electrolytic cell to changes in the target power supply's output power. Attached Figure Description

[0026] Figure 1 A schematic diagram of an implementation environment provided for an embodiment of this application;

[0027] Figure 2 A schematic diagram illustrating another implementation environment provided for an embodiment of this application;

[0028] Figure 3 A flowchart of an electrolytic cell control method provided in an embodiment of this application;

[0029] Figure 4 A flowchart of an electrolytic cell control method provided in an embodiment of this application;

[0030] Figure 5 A specific control timing diagram of an electrolytic cell provided in an embodiment of this application;

[0031] Figure 6 A structural block diagram of an electrolytic cell control device provided in an embodiment of this application;

[0032] Figure 7 A structural block diagram of an electrolytic cell control device provided in an embodiment of this application;

[0033] Figure 8 This is an internal structural diagram of a computer device provided in an embodiment of this application. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0035] Hydrogen energy, possessing both energy and material properties, has become the optimal choice for decarbonization in transportation, power, construction, and chemical industries. Compared to traditional hydrogen production from fossil fuels, renewable energy-based hydrogen production can help sectors that are difficult to decarbonize achieve economically feasible deep decarbonization. Furthermore, hydrogen storage can decouple the production and utilization processes of renewable energy, enabling long-term, large-scale storage of renewable energy. Therefore, to achieve economically feasible deep decarbonization and large-scale hydrogen storage, it is necessary to utilize renewable energy for hydrogen production. Currently, renewable energy hydrogen production mainly involves connecting a renewable energy source to an electrolyzer for water electrolysis. The connection methods between the renewable energy source and the electrolyzer can be divided into indirect connection and direct coupling. Indirect connection is the primary method currently used, and its main components include a renewable energy source, a battery, a converter, and the electrolyzer. The advantage of this system is that it can maximize the performance of the electrolyzer, allowing it to operate under a stable voltage; the disadvantage is that electronic equipment such as the converter increases system costs, and power transfer losses reduce system efficiency. Direct coupling achieves optimal structural matching between the renewable energy source and the electrolyzer, with the advantage of a simple system that eliminates the need for batteries and converters.

[0036] In related technologies, in the connection method of direct coupling between renewable energy power source and electrolyzer, the electrolyzer is usually controlled only by current control to meet the needs of hydrogen production by the electrolyzer.

[0037] However, due to the strong randomness and volatility of renewable energy, existing technologies that use current to control the electrolyzer make it difficult for the electrolyzer to respond in real time to changes in the output power of renewable energy sources.

[0038] In view of this, embodiments of this application provide an electrolytic cell control method, apparatus, computer equipment, and storage medium. Embodiments of this application can determine the control mode of the target electrolytic cell based on the fluctuation of the target power output, so that the control mode of the target electrolytic cell can be adapted to the fluctuation of the target power output, thereby improving the real-time response of the electrolytic cell to changes in the target power output.

[0039] Please refer to Figure 1 It shows a schematic diagram of the implementation environment involved in the electrolytic cell control method provided in the embodiments of this application, such as Figure 1 As shown, the implementation environment may include a target power source 101, a rectifier 102, a DC-DC device 103, a target electrolyzer 104, and a processor 105. The rectifier 102 converts the alternating current (AC) output from the target power source 101 into direct current (DC). The DC-DC device 103 adjusts the current or voltage and inputs the adjusted current or voltage into the target electrolyzer. The processor 105 controls the DC-DC device 103 to adjust the voltage or current. The target power source 101 can be a power source utilizing renewable energy sources such as wind turbines or photovoltaic arrays; optionally, it can also be a power source utilizing non-renewable energy sources such as fossil fuels. The target electrolyzer 104 is an electrolyzer for water electrolysis.

[0040] Please refer to Figure 2 This illustrates a schematic diagram of another implementation environment involved in the electrolytic cell control method provided in the embodiments of this application, such as... Figure 2 As shown, the implementation environment may include a target power supply 201, a rectifier 202, a DC-DC device 203, a target electrolytic cell 204, and a processor 205. It also includes an energy storage unit 206 for supplying voltage to the target electrolytic cell 204. This energy storage unit may be a power supply such as a lithium battery or a storage battery.

[0041] Please refer to Figure 3 The document illustrates a flowchart of an electrolytic cell control method provided in an embodiment of this application. This electrolytic cell control method can be applied to... Figure 1 and Figure 2 The implementation environment shown. For example... Figure 3 As shown, the electrolytic cell control method may include the following steps:

[0042] Step 301: Obtain the output power of the target power supply that powers the target electrolytic cell.

[0043] The target power source is used to power the target electrolyzer. In an optional embodiment of this application, the target power source can be a power source generated using renewable energy, such as a wind turbine or photovoltaic array; in another optional embodiment of this application, the target power source can also be a power source generated using fossil fuels. Furthermore, the target electrolyzer can be an electrolyzer used for electrolyzing water to produce hydrogen.

[0044] In an optional embodiment of this application, the processor can acquire the output power of the target power supply. Optional steps include: first, acquiring the voltage and current of the target power supply at the same moment, wherein the voltage and current of the target power supply can be collected using the processor's voltage detection module and current detection module; next, acquiring the output power of the target power supply. Optionally, the processor can obtain the product of the voltage and current of the target power supply at the same moment, which is the output power of the target power supply at that moment. Furthermore, the processor can acquire the output power of the target power supply in real-time or periodically. For example, the processor can determine a 30-second period and acquire the output power of the target power supply every 30 seconds.

[0045] Based on this, in the embodiments of this application, the target power supply can sequentially pass through a rectifier and a DC-DC device to supply power to the target electrolyzer and generate hydrogen gas by electrolyzing water. At the same time, the processor obtains the output power of the target power supply.

[0046] Step 302: Determine the output power change rate of the target power supply based on the obtained output power.

[0047] Optionally, the processor can acquire the rate of change of the target power supply's output power in real time. For example, a curve showing the target power supply's output power changing over time can be obtained based on the processor's real-time acquisition of the target power supply's output power. In this curve, the horizontal axis represents time, the vertical axis represents the target power supply's output power, and the slope of the tangent line at each point on the curve represents the rate of change of the output power at that moment. Therefore, the processor can acquire the slope of the tangent line on this curve in real time, thereby achieving the goal of acquiring the rate of change of the target power supply's output power in real time.

[0048] Optionally, the processor can periodically acquire the rate of change of the target power supply's output power. For example, the processor can acquire the rate of change of the target power supply's output power every T time interval. An optional implementation is as follows: First, the processor acquires the output power P of the target power supply at time T1. T1 Secondly, the processor obtains the output power P of the target power supply at time (T1+T). (T1+T)Next, the processor obtains the rate of change of the target power supply's output power over time period T using the following formula:

[0049]

[0050] Where K is the rate of change of the output power of the target power source during the time period T.

[0051] Step 303: Based on the output power change rate, determine the control mode for the target electrolytic cell from the preset electrolytic cell control modes.

[0052] The preset electrolytic cell control methods include current-controlled electrolytic cell control and voltage-controlled electrolytic cell control. In an optional embodiment of this application, the processor can determine the control method for the target electrolytic cell from the preset electrolytic cell control methods based on the rate of change of the target power supply output power. Optionally, the current-controlled electrolytic cell method can be achieved by the processor controlling the magnitude of the output current of the DC-DC device to control the electrolytic cell; similarly, the voltage-controlled electrolytic cell method can be achieved by the processor controlling the magnitude of the output voltage of the DC-DC device to control the electrolytic cell.

[0053] In this embodiment, firstly, the output power of the target power supply for the target electrolytic cell is obtained; secondly, based on the obtained output power, the rate of change of the target power supply's output power is determined; thirdly, based on the rate of change of the output power, a control method for the target electrolytic cell is determined from preset electrolytic cell control methods. The preset electrolytic cell control methods include methods that control the electrolytic cell using current and methods that control the electrolytic cell using voltage. The rate of change of the target power supply's output power characterizes the fluctuation of the target power supply's output power. This embodiment can determine the control method for the target electrolytic cell based on the fluctuation of the target power supply's output power, enabling the control method to adapt to the fluctuation of the target power supply's output power, thereby improving the real-time response of the electrolytic cell to changes in the target power supply's output power.

[0054] In one embodiment of this application, step 303, "determining the control method for the target electrolytic cell from preset electrolytic cell control methods based on the output power change rate," includes:

[0055] If the output power change rate is greater than the preset change rate threshold, the voltage-controlled electrolytic cell will be used as the control method for the target electrolytic cell; if the output power change rate is less than or equal to the preset change rate threshold, the current-controlled electrolytic cell will be used as the control method for the target electrolytic cell.

[0056] Because of the double-layer capacitance inside the electrolytic cell, it exhibits the general characteristics of a capacitor. These characteristics include: voltage cannot change abruptly, but current can. Therefore, in this situation, controlling the target electrolytic cell using current results in a longer voltage response time, preventing rapid changes in the load on the target electrolytic cell, meaning the target electrolytic cell cannot quickly respond to changes in the output power of the target power source. Conversely, controlling the target electrolytic cell using voltage allows for a very rapid current response, enabling the target electrolytic cell to quickly respond to changes in the output power of the target power source.

[0057] However, controlling the target electrolytic cell with voltage is much more difficult than controlling it with current. This is because, for a single target electrolytic cell, the upper limit of the current can reach several thousand amperes, while the voltage operating range is 0-3V. It can be seen that the voltage operating range is much smaller than the current operating range. Therefore, when precisely controlling the target electrolytic cell, controlling it with voltage is much more difficult than controlling it with current.

[0058] Therefore, to balance the control difficulty and response speed of the target electrolytic cell, a method is selected from voltage control and current control based on the rate of change of the target power supply output power. When the rate of change of the target power supply output power is greater than a preset threshold, indicating a rapid change in output power and requiring a fast response from the electrolytic cell, voltage control is chosen. Conversely, when the rate of change of the target power supply output power is less than the preset threshold, indicating a slower change in output power, current control, which is less difficult to control, is chosen.

[0059] The preset rate of change threshold can be a value obtained based on a large amount of experimental data and experiments conducted on a certain platform. In this embodiment, the preset rate of change threshold can be a fixed value. Optionally, the processor can determine the relationship between the output power rate of change and the preset rate of change threshold. If the output power rate of change is determined to be greater than the preset rate of change threshold, the processor controls the voltage value of the DC-DC output, that is, controls the target electrolytic cell by voltage control. If the output power rate of change is determined to be less than the preset rate of change threshold, the processor controls the current value of the DC-DC output, that is, controls the target electrolytic cell by current control.

[0060] In this embodiment, the control difficulty and response speed of the target electrolytic cell are balanced. The target electrolytic cell is controlled by current or voltage based on the rate of change of the target power output. This improves the real-time response of the target electrolytic cell to changes in the target power output without increasing the control difficulty.

[0061] Please refer to Figure 4 The electrolytic cell control method provided in this application embodiment further includes the following steps:

[0062] Step 401: When the output power of the target power supply is lower than the preset power threshold, control the target electrolytic cell to enter the thermal shutdown state.

[0063] The thermal shutdown state of the target electrolytic cell refers to the state in which the target electrolytic cell remains at its operating temperature even when it is in a shutdown state. Optionally, this operating temperature can be a value obtained based on a large amount of experimental data and experiments conducted on a certain platform. In the embodiments of this application, the operating temperature can also be a fixed value.

[0064] Furthermore, when the output power of the target power source is lower than a preset power threshold, the target electrolytic cell must enter a thermal shutdown state for safety reasons, waiting for the output power of the target power source to exceed the preset power threshold before restarting. The preset power threshold can be a value obtained based on a large amount of experimental data and experiments conducted on a specific platform. In this embodiment, the preset power threshold can also be a fixed value.

[0065] In an optional embodiment of this application, when the output power of the target power source is lower than a preset power threshold, the processor can control the target electrolytic cell to enter a thermal shutdown state. That is, the processor determines the relationship between the obtained output power of the target power source and the preset power threshold. When it is determined that the output power of the target power source is less than the preset power threshold, the processor controls the target electrolytic cell to enter a thermal shutdown state.

[0066] Step 402: When the target electrolytic cell is in a hot shutdown state, supply the target electrolytic cell with idle voltage.

[0067] The idle voltage is within a preset voltage range, which is greater than 0 and less than or equal to 1.3.

[0068] In related technologies, if a target electrolytic cell in a thermal shutdown state is started from a voltage of 0V, a voltage overshoot phenomenon will occur, which will shorten the lifespan of the electrolytic cell. Therefore, in an optional embodiment of this application, the target electrolytic cell is still supplied with power when it is in a thermal shutdown state to avoid starting the target electrolytic cell from a voltage of 0V.

[0069] Furthermore, the preset voltage range refers to the range of idle voltage supplied to the target electrolytic cell. When the idle voltage is within the preset voltage range, there will be no voltage "overshoot" phenomenon when the target electrolytic cell restarts. The preset voltage range is greater than 0 and less than or equal to 1.3V, and this range was obtained based on a large amount of experimental data and experiments conducted on a specific platform.

[0070] Optionally, the voltage supplied to the target electrolytic cell can be provided by either a target power source or an energy storage unit. It is important to note that regardless of the method used, the idle voltage must be within a preset voltage range. If the idle voltage supplied by the target power source is outside the preset range, then the energy storage unit must be controlled to supply the idle voltage. Alternatively, when the target electrolytic cell is in a thermal shutdown state, only the energy storage unit can supply the idle voltage. The energy storage unit can be a lithium battery, a refrigerated battery, or other power source.

[0071] In this embodiment, firstly, when the output power of the target power supply is lower than a preset power threshold, the target electrolytic cell is controlled to enter a hot shutdown state. The restart time in the hot shutdown state is shorter than the restart time in the cold shutdown state. Secondly, because the target electrolytic cell is still supplied with idle voltage while in the hot shutdown state, and this idle voltage is within a preset voltage range, the voltage overshoot phenomenon when the target electrolytic cell restarts is avoided. Furthermore, since the target electrolytic cell starts from a voltage greater than 0V, supplying idle voltage while in the hot shutdown state further shortens the startup time of the target electrolytic cell, building upon the reduced startup time caused by hot shutdown.

[0072] For details on the control methods for the voltage or current of the target electrolytic cell, please refer to [the relevant documentation / reference]. Figure 5 ,in, Figure 5 The load in the figure is the load of the electrolytic cell, which is further analyzed as follows:

[0073] AB Time Period: During this period, the target electrolytic cell is started using a cold start method. A cold start means that the target electrolytic cell is started at a temperature below its operating temperature. Because the rate of change of power output is less than a preset threshold during the AB time period, current control of the electrolytic cell is used during this period.

[0074] BE time period: Because the rate of change of power output is greater than the preset rate of change threshold during the BE time period, the BE period uses voltage control of the electrolytic cell to achieve rapid response to changes in output power.

[0075] EF time period: Because the rate of change of power output is less than the preset rate of change threshold during the EF time period, the electrolytic cell is controlled by current during the EF period.

[0076] FG time period: Because the rate of change of power output is greater than the preset rate of change threshold during the FG time period, the FG segment uses voltage control of the electrolytic cell to achieve the purpose of rapid response to changes in output power.

[0077] GH time period: Because the rate of change of power output is less than the preset rate of change threshold during the GH time period, the electrolytic cell is controlled by current during the GH period.

[0078] For the control process of the target electrolytic cell's thermal shutdown state and idle voltage, please refer to [reference needed]. Figure 5 ,like Figure 5 When the target electrolytic cell reaches point C, its load falls below the minimum load line. Consequently, the output power of the target power supply falls below the preset power threshold. At this point, the target electrolytic cell is controlled to enter a shutdown state while maintaining its operating temperature; in other words, the target electrolytic cell is controlled to be in a hot shutdown state. Figure 5 It can be seen that the load during time period CD is lower than the minimum load line, therefore the target electrolytic cell is in a hot-shutdown state during time period CD. Furthermore, to prevent voltage overshoot when the target electrolytic cell restarts, an idle voltage needs to be continuously supplied to the target electrolytic cell in the hot-shutdown state during time period CD, and this idle voltage needs to be kept within a preset voltage range. At time D, the load of the target electrolytic cell is greater than the minimum load line, and correspondingly, the output power of the target power supply is higher than the preset power threshold. At this time, the target electrolytic cell begins a hot start, where hot start refers to starting the target electrolytic cell while it is at its operating temperature. In addition, supplying an idle voltage to the target electrolytic cell while it is in a hot-shutdown state and controlling the idle voltage within a preset voltage range can also be called "idle potential control."

[0079] It should be understood that, although Figure 3-4 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 3-4 At least some of the steps in the process may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least some of the steps or stages in other steps.

[0080] Please refer to Figure 6 The diagram illustrates a block diagram of an electrolytic cell control device 600 provided in an embodiment of this application. The electrolytic cell control device includes an acquisition module 601, a first determination module 602, and a second determination module 603, wherein:

[0081] The acquisition module 601 is used to acquire the output power of the target power supply that powers the target electrolytic cell.

[0082] The first determining module 602 is used to determine the output power change rate of the target power supply based on the acquired output power.

[0083] The second determining module 603 is used to determine the control method for the target electrolytic cell from the preset electrolytic cell control methods according to the output power change rate. The preset electrolytic cell control methods include the electrolytic cell control method using current and the electrolytic cell control method using voltage.

[0084] In an optional embodiment of this application, the second determining module 603 is specifically used to: if the output power change rate is greater than a preset change rate threshold, then use voltage-controlled electrolytic cell as the control method for the target electrolytic cell.

[0085] In an optional embodiment of this application, the second determining module 603 is specifically used to: if the output power change rate is less than or equal to a preset change rate threshold, then use the current-controlled electrolytic cell as the control method for the target electrolytic cell.

[0086] In one optional embodiment of this application, the target power source is a power source generated using renewable energy, and the target electrolyzer is an electrolyzer used for water electrolysis.

[0087] Please refer to Figure 7 It shows a schematic diagram of another electrolytic cell control device 700 provided in an embodiment of this application, such as Figure 7 As shown, the electrolytic cell control device 700 includes, in addition to the modules of the electrolytic cell control device 600, a control module 701 and a power supply module 702.

[0088] Among them, the control module 701 is used to control the target electrolytic cell to enter the hot shutdown state when the output power of the target power supply is lower than the preset power threshold.

[0089] The power supply module 702 is used to supply the target electrolytic cell with idle voltage when the target electrolytic cell is in a hot shutdown state. The idle voltage is within a preset voltage range, which is greater than 0 and less than or equal to 1.3.

[0090] In one optional embodiment of this application, the power supply module 701 is specifically used to: supply the target electrolytic cell idle voltage using the target power supply.

[0091] In an optional embodiment of this application, the target electrolytic cell further includes an energy storage unit and a power supply module 702, specifically used to: supply the target electrolytic cell with idle voltage using the energy storage unit.

[0092] The apparatus for the electrolytic cell control method provided in this application embodiment can implement the above method embodiment, and its implementation principle and technical effect are similar, so it will not be described again here.

[0093] Specific limitations regarding the electrolytic cell control device can be found in the limitations of the electrolytic cell control method described above, and will not be repeated here. Each module in the aforementioned electrolytic cell control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the terminal's processor in hardware form or independent of it, or stored in the terminal's memory in software form, so that the processor can call and execute the corresponding operations of each module.

[0094] In one embodiment of this application, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows. Figure 8 As shown, the computer device includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media 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 media. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements an electrolytic cell control method. The display screen can be a liquid crystal display (LCD) or an e-ink display. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the computer device casing, or an external keyboard, touchpad, or mouse.

[0095] Those skilled in the art will understand that Figure 8 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0096] In one embodiment of this application, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0097] Obtain the output power of the target power supply that powers the target electrolytic cell; determine the output power change rate of the target power supply based on the obtained output power; determine the control method for the target electrolytic cell from the preset electrolytic cell control methods based on the output power change rate. The preset electrolytic cell control methods include the electrolytic cell control method using current and the electrolytic cell control method using voltage.

[0098] In one embodiment of this application, when the processor executes the computer program, it further implements the following steps: if the output power change rate is greater than a preset change rate threshold, then the voltage-controlled electrolytic cell method is used as the control method for the target electrolytic cell.

[0099] In one embodiment of this application, when the processor executes the computer program, it further implements the following steps: if the output power change rate is less than or equal to a preset change rate threshold, then the current-controlled electrolytic cell method is used as the control method for the target electrolytic cell.

[0100] In one embodiment of this application, when the processor executes the computer program, it further implements the following steps: when the output power of the target power supply is lower than a preset power threshold, the target electrolytic cell is controlled to enter a thermal shutdown state; when the target electrolytic cell is in a thermal shutdown state, an idle voltage is supplied to the target electrolytic cell, the idle voltage being within a preset voltage range, the preset voltage range being greater than 0 and less than or equal to 1.3.

[0101] In one embodiment of this application, when the processor executes the computer program, it also performs the following steps: supplying the target electrolytic cell with the target power supply for idling voltage.

[0102] In one embodiment of this application, the target electrolytic cell further includes an energy storage unit, and when the processor executes the computer program, it also performs the following steps: using the energy storage unit to supply the target electrolytic cell with idle voltage.

[0103] In one embodiment of this application, the target power source is a power source generated using renewable energy, and the target electrolyzer is an electrolyzer used for water electrolysis.

[0104] The computer device provided in this application embodiment has a similar implementation principle and technical effect to the above method embodiment, and will not be described again here.

[0105] In one embodiment of this application, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, it performs the following steps:

[0106] Obtain the output power of the target power supply that powers the target electrolytic cell; determine the output power change rate of the target power supply based on the obtained output power; determine the control method for the target electrolytic cell from the preset electrolytic cell control methods based on the output power change rate. The preset electrolytic cell control methods include the electrolytic cell control method using current and the electrolytic cell control method using voltage.

[0107] In one embodiment of this application, when the computer program is executed by the processor, it further implements the following steps: if the output power change rate is greater than a preset change rate threshold, then the voltage-controlled electrolytic cell method is used as the control method for the target electrolytic cell.

[0108] In one embodiment of this application, when the computer program is executed by the processor, it further implements the following steps: if the output power change rate is less than or equal to a preset change rate threshold, then the current-controlled electrolytic cell method is used as the control method for the target electrolytic cell.

[0109] In one embodiment of this application, when the computer program is executed by the processor, it further implements the following steps: when the output power of the target power supply is lower than a preset power threshold, the target electrolytic cell is controlled to enter a thermal shutdown state; when the target electrolytic cell is in a thermal shutdown state, an idle voltage is supplied to the target electrolytic cell, the idle voltage being within a preset voltage range, the preset voltage range being greater than 0 and less than or equal to 1.3.

[0110] In one embodiment of this application, when the computer program is executed by the processor, it further performs the following steps: supplying the target electrolytic cell with an idle voltage using a target power source.

[0111] In one embodiment of this application, the target electrolytic cell further includes an energy storage unit, and when the computer program is executed by the processor, it also performs the following steps: using the energy storage unit to supply the target electrolytic cell with idle voltage.

[0112] In one embodiment of this application, the target power source is a power source generated using renewable energy, and the target electrolyzer is an electrolyzer used for water electrolysis.

[0113] The computer-readable storage medium provided in this application embodiment has a similar implementation principle and technical effect to the above method embodiment, and will not be described again here.

[0114] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0115] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0116] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method of controlling an electrolytic cell, characterized by, The method comprises: acquiring output power of a target power supply for supplying power to a target electrolytic cell; determining an output power change rate of the target power supply according to the acquired output power; determining a control mode for the target electrolytic cell from preset electrolytic cell control modes according to the output power change rate, wherein the preset electrolytic cell control modes comprise a current control electrolytic cell mode and a voltage control electrolytic cell mode; the determining the control mode for the target electrolytic cell from the preset electrolytic cell control modes according to the output power change rate comprises: if the output power change rate is greater than a preset change rate threshold, the voltage control electrolytic cell mode is determined as the control mode for the target electrolytic cell.

2. The method of claim 1, wherein, the determining the control mode for the target electrolytic cell from the preset electrolytic cell control modes according to the output power change rate comprises: if the output power change rate is less than or equal to the preset change rate threshold, the current control electrolytic cell mode is determined as the control mode for the target electrolytic cell.

3. The method of claim 1, wherein, The method further comprises: in a case where the output power of the target power supply is lower than a preset power threshold, controlling the target electrolytic cell to enter a hot shutdown state; in a case where the target electrolytic cell is in the hot shutdown state, supplying an idle speed voltage to the target electrolytic cell, wherein the idle speed voltage is within a preset voltage range, and the preset voltage range is greater than 0 and less than or equal to 1.

3.

4. The method of claim 3, wherein, the supplying the idle speed voltage to the target electrolytic cell comprises: supplying the idle speed voltage to the target electrolytic cell by using the target power supply.

5. The method of claim 3, wherein, the target electrolytic cell further comprises an energy storage unit, and the supplying the idle speed voltage to the target electrolytic cell comprises: supplying the idle speed voltage to the target electrolytic cell by using the energy storage unit.

6. The method according to any one of claims 1 to 5, characterized in that, The target power supply is a power supply for generating power by using renewable energy, and the target electrolytic cell is an electrolytic cell for electrolyzing water.

7. An electrolytic cell control device, characterized by The device comprises: an acquisition module, configured to acquire output power of a target power supply for supplying power to a target electrolytic cell; a first determination module, configured to determine an output power change rate of the target power supply according to the acquired output power; a second determination module, configured to determine a control mode for the target electrolytic cell from preset electrolytic cell control modes according to the output power change rate, wherein the preset electrolytic cell control modes comprise a current control electrolytic cell mode and a voltage control electrolytic cell mode; the second determination module further comprises a determination unit, configured to, in a case where the output power change rate is greater than a preset change rate threshold, determine the voltage control electrolytic cell mode as the control mode for the target electrolytic cell.

8. The apparatus of claim 7, wherein, The device further comprises: a third determination module, configured to, in a case where the output power change rate is less than or equal to the preset change rate threshold, determine the current control electrolytic cell mode as the control mode for the target electrolytic cell. 9.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-8 when the computer program is executed by the processor. The processor executes the computer program to implement the steps of the method in any one of claims 1 to 6.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method in any one of claims 1 to 6.

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