Control method of mixed electrolytic cell cluster and related device

Abstract

The invention discloses a control method of a mixed electrolytic cell cluster and a related device, relates to the technical field of intelligent control, and determines the initial starting number of AEL electrolytic cells by utilizing prediction data based on a long-term prediction period. And based on the prediction data of the first short-term prediction period, the initial starting number of the PEMEL electrolytic cell is determined. And based on the prediction data of the target short-term prediction period, predicting a wind-light power prediction value of the target short-term prediction period, and determining the operation state of the mixed electrolytic cell cluster according to the wind-light power prediction value of the target short-term prediction period, the initial starting number of the AEL electrolytic cells and the initial starting number of the PEMEL electrolytic cells. According to the method, long-term prediction and short-term prediction are combined, coordinated operation of the PEMEL electrolytic cell and the AEL electrolytic cell in the mixed electrolytic cell cluster is controlled, real-time performance and flexibility of electrolytic cell control are achieved, and therefore the control effect of the mixed electrolytic cell cluster is improved.

Description

Technical Field

[0001] The present application relates to the field of intelligent control technology, and in particular to a control method and related devices for a hybrid electrolytic cell cluster. Background Art

[0002] The development of green energy, including wind power, photovoltaics, and hydrogen, is an important path to actively promote energy reform and the development of new energy power generation systems. Currently, hydrogen-electricity coupling systems utilize hybrid electrolyzer clusters consisting of multiple alkaline electrolyzers (AELs) and multiple proton exchange membrane electrolyzers (PEMELs) to generate hydrogen from renewable energy. This is a key technical approach to addressing renewable energy consumption challenges. Summary of the Invention

[0003] In view of the above problems, this application provides a control method and related devices for a hybrid electrolytic cell cluster to achieve the purpose of improving the control effect of the hybrid electrolytic cell cluster. The specific solution is as follows:

[0004] In a first aspect, the present application provides a control method for a hybrid electrolyzer cluster, wherein the hybrid electrolyzer cluster includes a plurality of AEL electrolyzers and a plurality of PEMEL electrolyzers, including:

[0005] In response to reaching a long-term prediction opportunity of a preset long-term prediction period, based on the prediction data of the long-term prediction period, using a pre-trained first power prediction model to predict a wind and solar power prediction value of the long-term prediction period;

[0006] Obtaining an initial startup quantity of the AEL electrolyzer based on the rated power of the AEL electrolyzer and the predicted wind and solar power values ​​during the long-term prediction period;

[0007] In response to reaching a short-term prediction opportunity of a preset short-term prediction period, based on the prediction data of the short-term prediction period, using a pre-trained second power prediction model to predict a wind and solar power prediction value of the short-term prediction period, where the short-term prediction period is a sub-period of the long-term prediction period;

[0008] If the short-term prediction period is the first short-term prediction period, obtaining the initial startup number of the PEMEL electrolyzer based on the rated power of the PEMEL electrolyzer, the predicted wind and solar power value in the short-term prediction period, and the initial startup number of the AEL electrolyzer;

[0009] Based on the initial startup number of the AEL electrolyzers and the initial startup number of the PEMEL electrolyzers, issuing an initial control instruction to control the initial startup number of the AEL electrolyzers and the initial startup number of the PEMEL electrolyzers to start up, and both operate at rated power;

[0010] If the short-term prediction period is a target short-term prediction period, determining the operating state of the hybrid electrolyzer cluster according to the wind and solar power forecast value, the initial startup number of the AEL electrolyzers, and the initial startup number of the PEMEL electrolyzers in the target short-term prediction period, the operating state of the hybrid electrolyzer cluster including the expected state of each of the initial AEL electrolyzers and each of the initial PEMEL electrolyzers, and the target short-term prediction period is any short-term prediction period other than the first short-term prediction period;

[0011] Based on the operating status of the hybrid electrolyzer cluster, target control instructions are issued to control each of the initial AEL electrolyzers and each of the initial PEMEL electrolyzers to be in a corresponding expected state.

[0012] In a possible implementation, the wind / solar power prediction value of the long-term prediction period includes the wind / solar power prediction value of each first-category sub-period of the long-term prediction period;

[0013] The obtaining of the initial startup quantity of the AEL electrolyzer based on the rated power of the AEL electrolyzer and the wind / solar power forecast value of the long-term forecast period includes:

[0014] For each of the first sub-periods, obtaining the average daily operating number of the AEL electrolyzer according to the rated power of the AEL electrolyzer and the predicted wind and solar power values ​​of the first sub-period;

[0015] The minimum value of the daily average operating quantity of the AEL electrolytic cells in each of the first-type sub-periods is obtained as the initial startup quantity of the AEL electrolytic cells.

[0016] In one possible implementation, obtaining the initial startup number of the PEMEL electrolyzer based on the rated power of the PEMEL electrolyzer, the predicted wind and solar power value of the short-term prediction period, and the initial startup number of the AEL electrolyzer includes:

[0017] Calculating the product of the initial startup quantity and the rated power of the AEL electrolyzer to obtain the rated total power of the AEL electrolyzer;

[0018] Calculate the difference between the wind and solar power forecast value of the first short-term forecast period and the rated total power of the AEL electrolyzer to obtain the redundant wind and solar power of the first short-term forecast period;

[0019] The initial startup quantity of the PEMEL electrolyzer is obtained according to the redundant wind and solar power in the first short-term prediction period and the rated power of the PEMEL electrolyzer.

[0020] In one possible implementation, determining the operating state of the hybrid electrolyzer cluster according to the wind and solar power forecast value of the target short-term forecast period, the initial startup number of the AEL electrolyzers, and the initial startup number of the PEMEL electrolyzers includes:

[0021] Calculating the product of the initial startup quantity and the rated power of the PEMEL electrolyzer to obtain the rated total power of the PEMEL electrolyzer;

[0022] Calculating the product of the initial startup quantity and the rated power of the AEL electrolyzer to obtain the rated total power of the AEL electrolyzer;

[0023] Calculate the difference between the wind and solar power forecast value of the target short-term forecast period and the rated total power of the PEMEL electrolyzer to obtain the redundant wind and solar power of the target short-term forecast period;

[0024] The operating status of the hybrid electrolyzer cluster is determined based on the relationship between the wind and solar power of the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power of the target short-term forecast period and the rated total power of the AEL electrolyzer.

[0025] In a possible implementation, if the relationship satisfies: the wind and solar power forecast value of the target short-term forecast period is greater than the rated total power of the AEL electrolyzer, and the redundant wind and solar power of the target short-term forecast period is greater than the rated total power of the PEMEL electrolyzer;

[0026] The determining the operating state of the hybrid electrolyzer cluster based on the relationship between the wind and solar power in the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power in the target short-term forecast period, and the rated total power of the AEL electrolyzer includes:

[0027] determining a target overload number of the PEMEL electrolyzer based on the maximum safe operating power of the PEMEL electrolyzer;

[0028] Obtaining a first cycle operation sequence corresponding to the overload state, the first cycle operation sequence including identifiers of the PEMEL electrolyzers sorted in ascending order according to cumulative overload operation time;

[0029] Obtaining a PEMEL electrolyzer whose order is not greater than the target overload number from the first period operation sequence as a target overload PEMEL electrolyzer;

[0030] determining an operating state of the hybrid electrolyzer cluster based on the target overloaded PEMEL electrolyzer;

[0031] The operating status of the hybrid electrolyzer cluster includes: each target overload PEMEL electrolyzer operates at the maximum safe operating power, all initial AEL electrolyzers operate at rated power, and the initial PEMEL electrolyzers except the target overload PEMEL electrolyzer operate at rated power.

[0032] In one possible implementation, if the relationship satisfies: the wind and solar power forecast value of the target short-term forecast period is greater than the rated total power of the AEL electrolyzer, and the redundant wind and solar power of the target short-term forecast period is not greater than the rated total power of the PEMEL electrolyzer;

[0033] The determining the operating state of the hybrid electrolyzer cluster based on the relationship between the wind and solar power in the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power in the target short-term forecast period, and the rated total power of the AEL electrolyzer includes:

[0034] determining a target operating number of the PEMEL electrolyzers based on the rated power of the PEMEL electrolyzers and the redundant wind and solar power in the target short-term forecast period;

[0035] determining a target operating PEMEL electrolyzer based on the target operating number of the PEMEL electrolyzers and the current state of each of the initial PEMEL electrolyzers;

[0036] operating a PEMEL electrolyzer based on the target to determine an operating state of the hybrid electrolyzer cluster;

[0037] The operating status of the hybrid electrolyzer cluster includes: all the initial AEL electrolyzers operate at rated power, each of the target-operating PEMEL electrolyzers operates at rated power, and the initial PEMEL electrolyzers except the target-operating PEMEL electrolyzers are in a shutdown state.

[0038] In one possible implementation, if the relationship satisfies: the wind and solar power forecast value of the target short-term forecast period is not greater than the rated total power of the AEL electrolyzer and is greater than the minimum operating power of the AEL electrolyzer;

[0039] The determining the operating state of the hybrid electrolyzer cluster based on the relationship between the wind and solar power in the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power in the target short-term forecast period, and the rated total power of the AEL electrolyzer includes:

[0040] determining a low-power operation quantity of the AEL electrolyzer based on a minimum operating power of the AEL electrolyzer;

[0041] Obtaining a second periodic operation sequence corresponding to the low power state, the second periodic operation sequence including identifiers of the AEL electrolyzers sorted in ascending order according to the accumulated low power operation time;

[0042] Obtaining an AEL electrolytic cell whose rank is not greater than the low-power operation number from the second period operation sequence as a target low-power AEL electrolytic cell;

[0043] determining an operating state of the hybrid electrolyzer cluster based on the target low-power AEL electrolyzer;

[0044] The operating status of the hybrid electrolyzer cluster includes: each of the target low-power AEL electrolyzers operates at the minimum operating power, the initial AEL electrolyzers other than the target low-power AEL electrolyzers operate at rated power, and all the initial PEMEL electrolyzers are in a shutdown state.

[0045] In one possible implementation, if the relationship satisfies: the wind and solar power forecast value of the target short-term forecast period is not greater than the minimum operating power of the AEL electrolyzer;

[0046] The determining the operating state of the hybrid electrolyzer cluster based on the relationship between the wind and solar power in the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power in the target short-term forecast period, and the rated total power of the AEL electrolyzer includes:

[0047] Determining a target operating number of the AEL electrolyzer based on the wind and solar power forecast value of the target short-term forecast period and the rated power of the AEL electrolyzer;

[0048] determining a target operating AEL electrolyzer based on the target operating number of the AEL electrolyzers and the current state of each of the initial AEL electrolyzers;

[0049] operating the AEL electrolyzer based on the target to determine an operating state of the hybrid electrolyzer cluster;

[0050] The operating status of the hybrid electrolyzer cluster includes:

[0051] Each of the target operation AEL electrolyzers operates at rated power, the initial AEL electrolyzers except the target operation AEL electrolyzers are all in a shutdown state, and all initial PEMEL electrolyzers are in a shutdown state.

[0052] A second aspect of the present application provides an electronic device, comprising at least one processor and a memory connected to the processor, wherein:

[0053] The memory is used to store computer programs;

[0054] The processor is used to execute the computer program so that the electronic device can implement the control method of the hybrid electrolyzer cluster according to the first aspect or any implementation manner of the first aspect.

[0055] A third aspect of the present application provides a computer storage medium, which carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement the control method of the hybrid electrolyzer cluster of the above-mentioned first aspect or any implementation of the first aspect.

[0056] Based on the above technical solution, embodiments of the present application provide a control method for a hybrid electrolyzer cluster, which is applied to controlling a hybrid electrolyzer cluster comprising multiple AEL electrolyzers and multiple PEMEL electrolyzers. In response to reaching a long-term prediction timing of a preset long-term prediction period, the method uses a pre-trained first power prediction model to predict a wind / solar power forecast value for the long-term prediction period based on prediction data for the long-term prediction period. An initial number of AEL electrolyzers to be started is obtained based on the rated power of the AEL electrolyzers and the wind / solar power forecast value for the long-term prediction period. In response to reaching a short-term prediction timing of a preset short-term prediction period, the method uses a pre-trained second power prediction model to predict a wind / solar power forecast value for the short-term prediction period based on prediction data for the short-term prediction period. The short-term prediction period is a sub-period of the long-term prediction period. If the short-term prediction period is the first short-term prediction period, the method obtains an initial number of PEMEL electrolyzers to be started based on the rated power of the PEMEL electrolyzers, the wind / solar power forecast value for the short-term prediction period, and the initial number of AEL electrolyzers to be started. Based on the initial startup number of AEL electrolyzers and the initial startup number of PEMEL electrolyzers, an initial control instruction is issued to control the initial startup number of AEL electrolyzers and the initial startup number of PEMEL electrolyzers to start up, and all operate at rated power. If the short-term prediction period is the target short-term prediction period, the operating state of the hybrid electrolyzer cluster is determined based on the wind and solar power forecast value, the initial startup number of AEL electrolyzers, and the initial startup number of PEMEL electrolyzers for the target short-term prediction period. The operating state of the hybrid electrolyzer cluster includes the expected state of each initial AEL electrolyzer and each initial PEMEL electrolyzer. The target short-term prediction period is any short-term prediction period other than the first short-term prediction period. Based on the operating state of the hybrid electrolyzer cluster, a target control instruction is issued to control each initial AEL electrolyzer and each initial PEMEL electrolyzer to be in the corresponding expected state. It can be seen that this method combines long-term prediction and short-term prediction when reaching the long-term prediction opportunity and each short-term prediction opportunity to control the coordinated operation of PEMEL electrolyzers and AEL electrolyzers in the hybrid electrolyzer cluster, realize the real-time and flexibility of electrolyzer control, and thus improve the control effect of the hybrid electrolyzer cluster. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0058] Figure 1 This is an architectural diagram of a control system for a hybrid electrolyzer cluster provided in this application;

[0059] Figure 2 A schematic flow chart of a control method for a hybrid electrolyzer cluster provided in this application;

[0060] Figure 3 A schematic structural diagram of a hydrogen-electricity coupling system provided in an embodiment of the present application;

[0061] Figure 4 A specific implementation process of a control method for a hybrid electrolyzer cluster provided in an embodiment of the present application;

[0062] Figure 5 A specific implementation process of another control method for a hybrid electrolyzer cluster provided in an embodiment of the present application;

[0063] Figure 6 A schematic diagram of a control strategy for a hybrid electrolyzer cluster provided in an embodiment of the present application;

[0064] Figure 7 A schematic structural diagram of a control device for a hybrid electrolytic cell cluster provided in an embodiment of the present application;

[0065] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0066] The following describes the embodiments of the present application in conjunction with the accompanying drawings. The terms used in the implementation methods of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application.

[0067] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0068] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, and this is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0069] The MPC (model predictive control) strategy mainly consists of three steps: model prediction, rolling optimization, and feedback correction. The MPC strategy is widely used in the intelligent control scenarios of multi-energy systems. It can effectively reduce the impact of scheduling errors on multi-energy systems and effectively improve the implementation effect of the control strategy.

[0070] In a traditional MPC strategy for a hybrid electrolyzer cluster, a long-term prediction result for a first time period in the future (for example, the next three days) is obtained based on a first power prediction model, and a real-time control plan for a second time period (for example, the current day) is obtained based on the long-term prediction result. However, there is a phenomenon that the real-time control plan deviates greatly from the actual situation, resulting in poor control effect of the real-time control plan.

[0071] Furthermore, the AEL electrolyzer (alkaline electrolysis) electrolyzer has the characteristics of low cost, low pressure, and high single stack power, but its operating range is small, the response speed is slow, and it is difficult to adapt well to the fluctuation problem of renewable energy processing. Compared with the AEL electrolyzer, the PEMEL electrolyzer (Proton Exchange Membrane Electrolyzer) electrolyzer has a wider load range, faster response speed, and can better adapt to the fluctuation of renewable energy, but in terms of economy, the diaphragm and electrodes of the PEMEL electrolyzer are expensive and the cost is high. Traditional control methods for hybrid electrolyzer clusters often do not comprehensively consider the characteristics of AEL electrolyzers and PEMEL electrolyzers, resulting in poor control effect for the coordinated control of the operating status of AEL electrolyzers and PEMEL electrolyzers in the hybrid electrolyzer cluster.

[0072] In order to solve the above technical problems, the embodiments of the present application provide a control method and related devices for a hybrid electrolyzer cluster. The present application can be applied to the field of intelligent control technology, specifically to a hydrogen-electricity coupling system, and through a long-term and short-term hybrid MPC strategy, the operating status of the AEL electrolyzer and the PEMEL electrolyzer in the hybrid electrolyzer cluster are coordinated and controlled to improve the control effect. By introducing a second power prediction model, the accuracy of the prediction results of the operating mode of the hybrid electrolyzer cluster in the second time period in the future (target short-term prediction model) is improved, thereby improving the control effect of the hybrid electrolyzer cluster.

[0073] The control method of the hybrid electrolytic cell cluster according to the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0074] This application can be applied to, but is not limited to, applications with hybrid electrolyzer cluster control functions or cloud services provided by cloud-side servers, etc., which are described below:

[0075] See also Figure 1 , Figure 1 A schematic diagram of a control system architecture for a hybrid electrolyzer cluster is shown. The system may include a terminal 100 and a server 200. The server 200 may provide the method provided in the embodiment of the present application to one or more terminals.

[0076] Among them, an application with the control function of the hybrid electrolyzer cluster can be installed on the terminal 100. The above application and web page can provide an interface. The terminal 100 can receive the relevant parameters entered by the user on the control interface of the hybrid electrolyzer cluster and send the above parameters to the server 200. The server 200 can obtain the processing results based on the received parameters and return the processing results to the terminal 100.

[0077] It should be understood that in some optional implementations, the terminal 100 can also complete the action of obtaining the processing result based on the received parameters by itself without the need for the cooperation of the server, and the embodiments of the present application are not limited to this.

[0078] Next describe Figure 1 The product form of the mid-terminal 100;

[0079] The terminal 100 in the embodiment of the present application can be a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), etc., and the embodiment of the present application does not impose any restrictions on this.

[0080] The terminal 100 may include components such as a radio frequency unit, a memory, an input unit, a display unit, a camera (optional), an audio circuit (optional), a speaker (optional), a microphone (optional), a headphone jack (optional), a processor, an external interface, and a power supply. Those skilled in the art will appreciate that the aforementioned components are merely examples and do not limit the terminal or multi-function device, and may include more or fewer components, or a combination of certain components, or different components.

[0081] The input unit can be used to receive input digital or character information and generate key signal input related to user settings and function control of the portable multi-function device. Specifically, the input unit may include a touch screen (optional) and / or other input devices. Specifically, other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power keys, etc.), a trackball, a mouse, a joystick, etc.

[0082] Among them, the input device can receive input data and so on.

[0083] The display unit can be used to display information input by the user or information provided to the user, various menus of the terminal, interactive interfaces, file display and / or playback of any multimedia file. In an embodiment of the present application, the display unit can be used to display the control interface of the hybrid electrolyzer cluster, processing results, etc.

[0084] Among them, the memory can be used to store software codes related to the control method of the hybrid electrolytic cell cluster, the processor can execute the steps of the control method of the hybrid electrolytic cell cluster, and can also schedule other units (such as the above-mentioned input unit and display unit) to achieve corresponding functions.

[0085] The radio frequency unit (optional) can be used to send and receive information or receive and send signals during a call.

[0086] In this embodiment of the present application, the radio frequency unit can send data to the server 200 and receive the processing results sent by the server 200.

[0087] It should be understood that the radio frequency unit is optional and can be replaced by other communication interfaces, such as a network port.

[0088] The terminal 100 further includes a power source (such as a battery) for supplying power to various components.

[0089] The terminal 100 also includes an external interface, which may be a standard Micro USB interface or a multi-pin connector, and may be used to connect the terminal 100 to other devices for communication, or to connect a charger to charge the terminal 100.

[0090] The server 200 includes a bus, a processor, a communication interface, and a memory. The processor, the memory, and the communication interface communicate with each other via the bus.

[0091] Among them, the memory can be used to store software codes related to the control method of the hybrid electrolytic cell cluster, the processor can execute the steps of the control method of the hybrid electrolytic cell cluster of the chip, and can also schedule other units to realize corresponding functions.

[0092] Reference Figure 2 , Figure 2 A schematic diagram of a control method for a hybrid electrolytic cell cluster provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, a control method for a hybrid electrolytic cell cluster provided in an embodiment of the present application may include S201 to S207, and these steps are described in detail below.

[0093] S201 : In response to reaching a preset long-term prediction opportunity of a long-term prediction period, based on prediction data of the long-term prediction period, using a pre-trained first power prediction model to predict a wind / solar power prediction value of the long-term prediction period.

[0094] S202: Based on the rated power of the AEL electrolyzer and the wind and solar power forecast value of the long-term forecast period, obtain the initial startup quantity of the AEL electrolyzer.

[0095] S203 : In response to reaching a preset short-term prediction opportunity of a short-term prediction period, based on the prediction data of the short-term prediction period, using a pre-trained second power prediction model to predict a wind / solar power prediction value of the short-term prediction period.

[0096] In this embodiment, the short-term prediction period is a sub-period of the long-term prediction period.

[0097] S204: If the short-term prediction period is the first short-term prediction period, obtain the initial startup number of the PEMEL electrolyzer based on the rated power of the PEMEL electrolyzer, the wind and solar power prediction value of the short-term prediction period, and the initial startup number of the AEL electrolyzer.

[0098] S205 . Based on the initial startup number of the AEL electrolyzers and the initial startup number of the PEMEL electrolyzers, an initial control instruction is issued to control the initial startup number of the AEL electrolyzers and the initial startup number of the PEMEL electrolyzers to start up, and both operate at rated power.

[0099] S206. If the short-term prediction period is the target short-term prediction period, determine the operating status of the hybrid electrolyzer cluster according to the wind and solar power prediction value of the target short-term prediction period, the initial startup number of AEL electrolyzers, and the initial startup number of PEMEL electrolyzers.

[0100] In this embodiment, the operating state of the hybrid electrolyzer cluster includes the expected states of each initial AEL electrolyzer and each initial PEMEL electrolyzer, and the target short-term prediction period is any short-term prediction period except the first short-term prediction period.

[0101] S207 : Based on the operating status of the hybrid electrolyzer cluster, a target control instruction is issued to control each initial AEL electrolyzer and each initial PEMEL electrolyzer to be in a corresponding expected state.

[0102] As can be seen from the above technical solutions, the control method for a hybrid electrolyzer cluster provided in the embodiments of the present application reaches a preset long-term prediction timing and uses prediction data based on the long-term prediction period to determine the initial startup number of AEL electrolyzers. When the short-term prediction timing of the first short-term prediction period is reached, the wind and solar power prediction value for the first short-term prediction period is predicted based on the prediction data of the first short-term prediction period. Combined with the initial startup number of AEL electrolyzers, the initial startup number of PEMEL electrolyzers is determined. Thus, the PEMEL electrolyzers and AEL electrolyzers with the initial startup numbers are controlled to operate at rated power. When the short-term prediction timing of the target short-term prediction period is reached, the wind and solar power prediction value for the target short-term prediction period is predicted based on the prediction data of the target short-term prediction period. The operating status of the hybrid electrolyzer cluster is determined based on the wind and solar power prediction value for the target short-term prediction period, the initial startup number of AEL electrolyzers, and the initial startup number of PEMEL electrolyzers. It can be seen that this method combines long-term prediction and short-term prediction when reaching the long-term prediction opportunity and each short-term prediction opportunity to control the coordinated operation of PEMEL electrolyzers and AEL electrolyzers in the hybrid electrolyzer cluster, realize the real-time and flexibility of electrolyzer control, and thus improve the control effect of the hybrid electrolyzer cluster.

[0103] In a possible implementation, the embodiment of the present application can be specifically applied to Figure 3 The control system of the hybrid electrolyzer cluster in the hydrogen-electric coupling system shown, Figure 3 A schematic diagram of the structure of a hydrogen-electric coupling system provided in an embodiment of the present application is shown in FIG. Figure 3As shown in FIG, the hydrogen-electric coupling system includes a wind-solar power generation system, a hybrid electrolyzer cluster, and a control system for the hybrid electrolyzer cluster. The wind-solar power generation system includes a permanent magnet direct-drive wind turbine and a photovoltaic generator set, and the hybrid electrolyzer cluster includes N parallel alkaline electrolyzers (AEL) (respectively denoted as ALK1 to ALK2). N ) and M proton exchange membrane electrolyzers PEMEL electrolyzers (PEMEL1~PEMEL M The permanent magnet direct-drive wind turbine, photovoltaic generator, and electrolyzer are all connected to the bus voltage through rectifiers. The control system of the hybrid electrolyzer cluster is pre-configured with a trained first and second power prediction models.

[0104] It should be noted that the system architecture of the control system of the hybrid electrolyzer cluster can refer to the above embodiment. Figure 4 , Figure 4 The specific implementation process of the control method of a hybrid electrolytic cell cluster provided in the embodiment of the present application is as follows: Figure 4 As shown, a control method for a hybrid electrolytic cell cluster provided in an embodiment of the present application may include S401 to S408, and these steps are described in detail below.

[0105] S401 : In response to reaching a preset long-term prediction opportunity, predict wind and solar power prediction values ​​of each first-type sub-period within a long-term prediction period based on a preset first power prediction model.

[0106] In this embodiment, the forecast data for each first-category sub-period of the long-term forecast period is input into a first power forecast model, resulting in the output of a wind / solar power forecast value for each first-category sub-period. The forecast data includes forecast values ​​for multiple wind power parameters, such as wind speed, wind direction, and sunlight intensity. The first power forecast model is constructed based on a pre-trained neural network.

[0107] In this embodiment, the long-term prediction opportunity includes the start time of the long-term prediction period. The long-term prediction period is composed of multiple first-type sub-periods in sequence. The length of the long-term prediction period is the first length, and the length of each first-type sub-period is the second length.

[0108] For example, if the first duration is 3 days and the second duration is 1 day, the long-term prediction opportunity will be triggered every three days, and the predicted values ​​of multiple wind power parameters such as wind speed, wind direction and light intensity of each first-class sub-period in the long-term prediction period, that is, each day in the next three days, will be input into the first power prediction model, and the wind and solar power prediction values ​​of each day in the next three days will be output by the first power prediction model.

[0109] S402: For each first-type sub-period, obtain the average daily operating number of the AEL electrolyzer according to the rated power of the AEL electrolyzer and the predicted wind and solar power.

[0110] Continuing with the previous example, after obtaining the wind power forecast value for each day in the next three days, combined with the rated power P of the AEL electrolyzer A , calculate the average daily operating number of AEL electrolyzers in each of the next three days, and record them as n1, n2, and n3 respectively.

[0111] S403: Obtain the minimum value of the daily average operating quantity of the AEL electrolytic cells in each first-type sub-period to obtain the initial startup quantity of the AEL electrolytic cells.

[0112] In this embodiment, the initial startup number of the AEL electrolytic cells is the startup number n of the AEL electrolytic cells at the start of the long-term prediction period, that is, n=min(n1 n2 n3).

[0113] S404: Predicting a wind / solar power prediction value of a first short-term prediction period based on a preset second power prediction model.

[0114] In this embodiment, the first short-term prediction cycle is the first short-term prediction cycle within the long-term prediction cycle, and the short-term prediction cycle is a second-type sub-cycle of the long-term prediction cycle. Specifically, in response to reaching the start time of the first short-term prediction cycle, the prediction data of the first short-term prediction cycle is input into the second power prediction model to obtain the wind and solar power prediction value of the first short-term prediction cycle output by the prediction model, wherein the start time of the first short-term prediction cycle and the start time of the long-term prediction cycle are the same time.

[0115] In this embodiment, the duration of the short-term prediction period is the third duration. For example, if the third duration is 3 hours (3 hours), then starting from the start of the long-term prediction period, the following is executed every 3 hours: the predicted values ​​of multiple wind power parameters such as wind speed, wind direction, and light intensity for the next 3 hours are input into the second power prediction model, and the second power prediction model outputs a predicted wind and solar power value for the next 3 hours.

[0116] S405. Calculate the difference between the wind and solar power forecast value of the first short-term forecast period and the rated total power of the AEL electrolyzer to obtain the redundant wind and solar power of the first short-term forecast period.

[0117] In this embodiment, the target short-term prediction period is a short-term prediction period other than the first short-term prediction period. Continuing with the above example, the first short-term prediction period is the first three hours of every three days.

[0118] In this embodiment, the rated total power of the AEL electrolyzer is the product of the rated power of the AEL electrolyzer and the initial startup number, that is, the total power when the initial startup number of AEL electrolyzers operate at the rated power.

[0119] S406: Calculate the initial startup quantity of the PEMEL electrolyzers according to the redundant wind and solar power in the first short-term prediction period and the rated power of the PEMEL electrolyzers.

[0120] In this embodiment, the wind and solar power forecast value of the first short-term forecast period is recorded as Pw1, and the rated power of the PEMEL electrolyzer is recorded as P P , then the calculation method of the initial startup number m of the PEMEL electrolyzer is:

[0121] 1. Calculate the total rated power of the AEL electrolyzer based on the rated power of the AEL electrolyzer and the initial startup quantity.

[0122] 2. Calculate the difference between the wind and solar power forecast value of the first short-term forecast period and the rated total power of the AEL electrolyzer to obtain the redundant wind and solar power.

[0123] 3. Calculate the redundant wind and solar power and the rated power P of the PEMEL electrolyzer P The ratio of is used to obtain the initial startup number m of the PEMEL electrolyzer.

[0124] In summary, the formula for calculating the predicted number of PEMEL electrolyzer operations m in the first short-term forecast period is as follows:

[0125] m=(Pw1-nP A ) / P P .

[0126] S407 : Determine the initial AEL electrolyzer and the initial PEMEL electrolyzer based on the initial startup quantity of the AEL electrolyzer and the PEMEL electrolyzer, and the operation status data of each AEL electrolyzer and PEMEL electrolyzer in the hybrid electrolyzer cluster.

[0127] In this embodiment, the operating status data includes the current status and historical operating sequence of each AEL electrolyzer and PEMEL electrolyzer.

[0128] In this embodiment, the historical operation sequence of the AEL electrolyzers includes the identifiers of the AEL electrolyzers sorted in ascending order of cumulative operation time. The historical operation sequence of the initial PEMEL electrolyzers includes the identifiers of the PEMEL electrolyzers sorted in ascending order of cumulative operation time.

[0129] In this embodiment, taking the initial AEL electrolytic cell as an example, the method for determining the initial AEL electrolytic cell specifically includes:

[0130] If the initial startup quantity of the AEL electrolyzers is greater than the number of AEL electrolyzers currently in operation, the AEL electrolyzers with the remaining startup quantity that are in a stopped state are selected as the AEL electrolyzers to be started. The initial AEL electrolyzers include the AEL electrolyzers to be started and the AEL electrolyzers currently in operation, wherein the remaining startup quantity is equal to the initial startup quantity minus the number of AEL electrolyzers currently in operation.

[0131] If the initial startup number of AEL electrolyzers is equal to the number of AEL electrolyzers in operation, the initial AEL electrolyzers include the AEL electrolyzers in operation.

[0132] If the initial number of AEL electrolyzers to be started is less than the number of AEL electrolyzers currently in operation, the AEL electrolyzer currently in operation with the longest cumulative redundant start-up time is selected as the AEL electrolyzer to be shut down. The initial AEL electrolyzers include the AEL electrolyzers currently in operation except for the AEL electrolyzer to be shut down.

[0133] S408: Issue an initial control instruction.

[0134] In this embodiment, the initial control instructions are used to control a first target number of AEL electrolyzers to operate at rated power and a second target number of PEMEL electrolyzers to operate at rated power during a long-term prediction period. The AEL electrolyzers operating at rated power are referred to as the initial AEL electrolyzers, and the PEMEL electrolyzers operating at rated power are referred to as the initial PEMEL electrolyzers. The first target number is the initial startup number of AEL electrolyzers, and the second target number is the initial startup number of PEMEL electrolyzers.

[0135] S409: Update the running status data.

[0136] In this embodiment, the operating status data may also include the cumulative duration of each state of the initial AEL electrolyzer and the initial PEMEL electrolyzer during the long-term prediction period. States include shutdown and operation, and operation can be further subdivided into rated operation, overload operation, and low-power operation, representing operation at rated power, operation at maximum safe power, and operation at minimum power, respectively.

[0137] In this embodiment, the operating state data also includes the periodic operating sequence corresponding to each state within the long-term prediction period. Taking the target state as an example, the periodic operating sequence of an AEL electrolyzer includes the identifiers of the initial AEL electrolyzers sorted in ascending order by the cumulative duration in the target state. The periodic operating sequence of a PEMEL electrolyzer includes the identifiers of the initial PEMEL electrolyzers sorted in ascending order by the cumulative duration in the target state.

[0138] As can be seen from the above technical solution, the control method for the hybrid electrolyzer cluster provided in the embodiment of the present application uses a first power prediction model to predict the wind and solar power prediction value based on the prediction data of the long-term prediction period at the beginning of the long-term prediction period, thereby determining the initial startup number of AEL electrolyzers. Using a second power prediction model, the wind and solar power prediction value is predicted based on the prediction data of the first short-term prediction period, thereby determining the initial startup number of PEMEL electrolyzers. Thus, the PEMEL electrolyzers and AEL electrolyzers with the initial startup number are controlled to operate at rated power. It can be seen that this method combines long-term and short-term predictions to control the coordinated operation of PEMEL electrolyzers and AEL electrolyzers in the hybrid electrolyzer cluster, achieve real-time control of the electrolyzers, and thus improve the control effect of the hybrid electrolyzer cluster.

[0139] Furthermore, S407~S408 is a specific implementation method for issuing initial control instructions based on the initial startup number of AEL electrolyzers and the initial startup number of PEMEL electrolyzers. This method combines the historical operation data and real-time operation data in the operation status data, and determines the initial PEMEL electrolyzer and the initial AEL electrolyzer based on the initial startup number, respectively. On a macro level, it balances the length of time that each electrolyzer is in operation, improves the overall service life of the hybrid electrolyzer cluster, increases the overall use cycle of the hybrid electrolyzer cluster, and reduces the failure rate of the hybrid electrolyzer cluster.

[0140] Furthermore, based on the prediction data of each first-class sub-period within the long-term prediction period, the startup number of AEL electrolytic cells is predicted respectively, and the minimum value of the startup number prediction value of each first-class sub-period of the AEL electrolytic cell is taken as the initial startup number to improve the accuracy of the initial startup number.

[0141] See also Figure 5 , Figure 5 The specific implementation process of another control method of a hybrid electrolyzer cluster provided in the embodiment of the present application is as follows: Figure 5 As shown, a control method for a hybrid electrolytic cell cluster provided in an embodiment of the present application may include S501 to S516, and these steps are described in detail below.

[0142] S501 : In response to reaching a target short-term prediction opportunity, predict a wind / solar power prediction value of a target short-term prediction period based on a second power prediction model.

[0143] In this embodiment, the target short-term prediction period is a short-term prediction period within the long-term prediction period, excluding the first short-term prediction period. For example, the short-term prediction period corresponding to the 4th to 6th hour. Specifically, in response to reaching the start time of the target short-term prediction period (for example, the start time of the 4th hour), the prediction data of the target short-term prediction period is input into the second power prediction model to obtain the wind and solar power prediction value of the target short-term prediction period output by the prediction model, and the wind and solar power prediction value of the target short-term prediction period is recorded as P wi .

[0144] S502: Determine whether the wind and solar power forecast value of the target short-term forecast period is greater than the rated total power of the AEL electrolyzer.

[0145] That is, after the wind and solar power forecast value of the target short-term forecast period is obtained, the wind and solar power forecast value P of the target short-term forecast period is determined. wi Is it greater than the rated total power n×P of the AEL electrolyzer? A (denoted as nP A ) That is, P wi >nP A .

[0146] S503, if P wi >nP A , to determine whether the redundant wind and solar power in the target short-term forecast period is greater than the rated total power of the PEMEL electrolyzer.

[0147] In this embodiment, the rated total power of the PEMEL electrolyzer is the product of the rated power of the PEMEL electrolyzer and the initial startup number, that is, the total power when the initial startup number of PEMEL electrolyzers are running at the rated power, that is, m×Pp (denoted as mPp). The redundant wind and solar power is the difference between the predicted wind and solar power and the rated total power of the AEL electrolyzer, that is, P wi -nP A .

[0148] S504, if P wi >nP A And P wi -nP A >mP P , based on the maximum safe operating power of the PEMEL electrolyzer, determine the target overload number of the PEMEL electrolyzer.

[0149] In this embodiment, the first condition includes: the wind and solar power forecast value of the target short-term forecast period is greater than the rated total power of the AEL electrolyzer, and the redundant wind and solar power is greater than the rated total power of the PEMEL electrolyzer. The target wind and solar power forecast value is the wind and solar power forecast value of the target short-term forecast period, then the first condition is expressed as: P wi>nP A And P wi -nP A >mP P .

[0150] In this embodiment, when the first condition is met, the method for determining the target overload number m1 of the PEMEL electrolyzer based on the maximum safe operating power of the PEMEL electrolyzer is:

[0151] Calculate the redundant wind and solar power (P wi -nP A ) and PEMEL electrolyzer rated power and overload factor product The ratio of , that is:

[0152]

[0153] Among them, the overload factor The maximum safe operating power of the PEMEL electrolyzer must be met, usually At this time, the maximum PEMEL safe operating power is

[0154] S505 : Determine a target overload PEMEL electrolyzer based on the target overload quantity and the operating status data of the PEMEL electrolyzer.

[0155] In this embodiment, the operation status data includes a first cycle operation sequence corresponding to the overload state of the PEMEL electrolyzer, which is recorded as an overload PEMEL sequence. The overload PEMEL sequence includes identifiers of the PEMEL electrolyzers sorted from small to large according to the cumulative overload operation time.

[0156] In this embodiment, a PEMEL electrolyzer with a rank not greater than the target overload number is obtained from the overload PEMEL sequence as the target overload PEMEL electrolyzer, and the expected state of the target overload PEMEL electrolyzer is determined to be an overload state, that is, it operates at the maximum safe operating power in the target short-term prediction period.

[0157] S506: Issue a first control instruction to update the operation status data.

[0158] In this embodiment, the first control instruction is used to control all initial AEL electrolyzers to operate at rated power, the third target number of initial PEMEL electrolyzers to operate at rated power, and the target overload number of initial PEMEL electrolyzers to operate at maximum safe operating power, where the third target number is equal to the second target number minus the target overload number.

[0159] In this embodiment, the first control instruction is specifically used to control the PEMEL electrolyzers operating at the maximum safe operating power to be the target overload PEMEL electrolyzers, the AEL electrolyzers operating at the rated power to be all initial AEL electrolyzers, and the PEMEL electrolyzers operating at the rated power to be the initial PEMEL electrolyzers other than the target overload PEMEL electrolyzers. That is, the expected state of all initial AEL electrolyzers and the initial PEMEL electrolyzers other than the target overload PEMEL electrolyzers is to operate at the rated power, and the expected state of each target overload PEMEL electrolyzer is an overload state.

[0160] In one possible implementation, if all initial PEMEL electrolyzers and all initial AEL electrolyzers are operating at rated power in the last short-term prediction period, the first control instruction is specifically used to control the target overloaded PEMEL electrolyzers to switch to operating at the maximum safe operating power in sequence (according to the order of electrolyzer identification).

[0161] S507, if P wi >nP A And P wi -nP A ≤mP P , based on the rated power of the PEMEL electrolyzer and the redundant wind and solar power in the target short-term forecast period, the target operating number of PEMEL electrolyzers is determined.

[0162] In this embodiment, the second condition includes that the wind and solar power forecast value of the target short-term forecast period is greater than the rated total power of the AEL electrolyzer and the redundant wind and solar power is not greater than the rated total power of the PEMEL electrolyzer. That is: P wi >nP A And P wi -nP A ≤mP P .

[0163] In this embodiment, the target operating number of the PEMEL electrolyzers is equal to the rounded result of the ratio of the redundant wind and solar power to the rated power of the PEMEL electrolyzers.

[0164] S508 : Determine the target operating PEMEL electrolyzer based on the target operating quantity and operating status data of the PEMEL electrolyzer.

[0165] In this embodiment, a target number of target operating PEMEL electrolyzers is determined from the initial PEMEL electrolyzers.

[0166] In this embodiment, the operating status data includes the identifier of the initial PEMEL electrolyzer currently in operation.

[0167] If the number of currently operating initial PEMEL electrolyzers is greater than the target operating number, for example, the currently operating PEMEL electrolyzers include all initial PEMEL electrolyzers, the target operating number of initial PEMEL electrolyzers is selected from the currently operating initial PEMEL electrolyzers as the target operating PEMEL electrolyzers.

[0168] If the number of currently running initial PEMEL electrolyzers is not greater than the target running number, the number of initial PEMEL electrolyzers to be started is selected as the PEMEL electrolyzers to be started, and the target running PEMEL electrolyzers include the currently running initial PEMEL electrolyzers and the PEMEL electrolyzers to be started.

[0169] S509: Issue a second control instruction to update the operation status data.

[0170] In this embodiment, the second control instruction is used to control all initial AEL electrolyzers to operate at rated power, the target number of initial PEMEL electrolyzers to operate at rated power, and the initial PEMEL electrolyzers operating at rated power to be the target-operating PEMEL electrolyzers. That is, the expected state of all target-operating PEMEL electrolyzers and all initial AEL electrolyzers is rated power operation, and the expected state of PEMEL electrolyzers other than the target-operating PEMEL electrolyzers is shutdown.

[0171] In a possible implementation, if all initial PEMEL electrolyzers and all initial AEL electrolyzers operate at rated power in the last short-term prediction period, the second control instruction is specifically used to control the initial PEMEL electrolyzers except the target operating PEMEL electrolyzer.

[0172] In one possible implementation, if the number of currently operating PEMEL electrolyzers is less than the target operating number, the currently operating PEMEL electrolyzers will operate at rated power, and the PEMEL electrolyzers to be started will be started and run at rated power.

[0173] S510, if P wi ≤nP A , determine whether the wind and solar power forecast value of the target short-term forecast period is greater than the minimum operating power of the AEL electrolyzer.

[0174] In this embodiment, the minimum operating power is a first preset multiple of the rated total power, for example, the first preset multiple x=0.4, that is, to determine whether P wi >0.4nPA.

[0175] S511, if P wi ≤nP A And Pwi>0.4nPA , determine the low power operation quantity of the AEL electrolyzer based on the lowest operating power of the AEL electrolyzer.

[0176] In this embodiment, the third condition includes that the wind and solar power forecast value of the target short-term forecast period is not greater than the rated total power of the AEL electrolyzer and is greater than the minimum operating total power of the AEL electrolyzer, that is, the third condition includes Pwi≤nP A And Pwi>0.4nP A .

[0177] In this embodiment, the low-power operation number n1 of the AEL electrolyzer satisfies:

[0178] The predicted wind and solar power is equal to the sum of the total power of the AEL operating at low power and the total power of the AEL operating at rated power, that is:

[0179] P wi =x×n1×P A +(n-n1)×P A .

[0180] Then n1=(nP A -P wi ) / (1-x)P A .

[0181] Here, x is a first preset multiple of the minimum operating power of 0.4.

[0182] S512: Determine a target low-power AEL electrolyzer based on the low-power operation quantity and operation status data of the AEL electrolyzers.

[0183] In this embodiment, the overload operation data includes a second cycle operation sequence corresponding to the low-power state of the AEL electrolytic cell, which is recorded as a low-power AEL sequence. The low-power AEL sequence includes the identifiers of the AEL electrolytic cells sorted from small to large according to the cumulative low-power operation time.

[0184] In this embodiment, an AEL electrolyzer whose rank is not greater than the low-power operation number is obtained from the low-power AEL sequence as a target low-power AEL electrolyzer.

[0185] S513: Issue a third control instruction to update the operation status data.

[0186] In this embodiment, the third control instruction is used to control the low-power operating number of AEL electrolyzers to operate at the lowest operating power, the fourth target number of AEL electrolyzers to operate at the rated power, the fourth target number is equal to the first target number minus the low-power operating number, and all initial PEMEL electrolyzers are shut down.

[0187] In this embodiment, the third control instruction is specifically used to control each target low-power AEL electrolyzer to operate at the lowest operating power, the initial AEL electrolyzers other than the target low-power AEL electrolyzer to operate at the rated power, and all initial PEMEL electrolyzers to be shut down. That is, the expected state of each target low-power AEL electrolyzer is a low-power state (operating at the lowest operating power), the expected state of the initial AEL electrolyzers other than the target low-power AEL electrolyzer is to operate at the rated power, and the expected state of all initial PEMEL electrolyzers is a shut down state.

[0188] In one possible implementation, if all initial PEMEL electrolyzers and all initial AEL electrolyzers are operating at rated power in the previous short-term prediction period, the third control instruction is specifically used to control all PEMEL electrolyzers to shut down, and each target low-power AEL electrolyzer is switched to operate at the lowest operating power, that is, the low-power state.

[0189] S514, if P wi ≤nP A And P wi ≤0.4nP A , based on the wind and solar power forecast values ​​of the target short-term forecast period and the rated power of the AEL electrolyzer, the target operating number of the AEL electrolyzer is determined.

[0190] In this embodiment, the fourth condition includes that the wind and solar power forecast value of the target short-term forecast period is not greater than the minimum operating power of the AEL electrolyzer, that is, P w ≤0.4nP A .

[0191] In this embodiment, the method for determining the target operating number n2 of the AEL electrolytic cells is:

[0192] Calculate the predicted wind and solar power and the actual power when AEL is running at low power (0.4P A ), that is,

[0193] n2=P wi / 0.4P A .

[0194] S515 : Determine the target operating AEL electrolytic cell based on the target operating quantity and operating status data of the AEL electrolytic cell.

[0195] In this embodiment, the operating status data includes the identifier of the initial AEL electrolytic cell currently in operation.

[0196] In this embodiment, if the number of the currently running initial AEL electrolyzers is greater than the target running number, for example, the currently running AEL electrolyzers include all the initial AEL electrolyzers, the target running number of initial AEL electrolyzers are selected from the currently running AEL electrolyzers as the target running AEL electrolyzers.

[0197] If the number of the currently running initial AEL electrolyzers is not greater than the target running number, the initial AEL electrolyzers to be started are selected as the AEL electrolyzers to be started, and the target running AEL electrolyzers include the currently running initial AEL electrolyzers and the AEL electrolyzers to be started.

[0198] S516: Issue a fourth control instruction to update the operation status data.

[0199] In this embodiment, the fourth control instruction is used to control at least the target number of initial AEL electrolyzers to operate at rated power, while all PEMEL electrolyzers are shut down. The fourth control instruction is specifically used to control the AEL electrolyzers operating at rated power to become target-operation AEL electrolyzers. That is, the target-operation AEL electrolyzers are expected to operate at rated power, while all AEL electrolyzers other than the target-operation AEL electrolyzers and all initial PEMEL electrolyzers are expected to be shut down.

[0200] In one possible implementation, if all initial PEMEL electrolyzers and all initial AEL electrolyzers are operating at rated power in the last short-term prediction period, the fourth control instruction is specifically used to control the initial AEL electrolysis except the target operating AEL electrolyzer to be shut down, and all PEMEL electrolyzers to be shut down.

[0201] It can be seen from the above technical solution that the control method of the hybrid electrolyzer cluster provided in the embodiment of the present application takes into account the uncertainty and volatility of the renewable energy output prediction in the hydrogen-electric coupling system. In each target short-term prediction period, the wind power is predicted using the second power prediction model based on the prediction data of the target short-term prediction period, and then the operating number and operating status of each type of electrolyzer in the hybrid electrolyzer cluster are controlled based on the risk power prediction value of the target short-term prediction period, thereby improving the real-time and accuracy of the power prediction.

[0202] Specifically, when controlling the operating quantity and operating status of various electrolytic cells in the hybrid electrolytic cell cluster according to the risk power prediction value of the target short-term prediction period, the initial startup quantity of AEL electrolytic cells and PEMEL electrolysis determined based on the risk power prediction value of the long-term prediction period is combined to determine which condition is met, and thus issue corresponding control instructions to control the operating status of the hybrid electrolytic cell cluster within the target short-term prediction period, thereby optimizing the status control of each electrolytic cell in the hybrid electrolytic cell cluster in real time.

[0203] Figure 6 A schematic diagram of a control strategy for a hybrid electrolyzer cluster provided in an embodiment of the present application is shown in FIG. Figure 6 As shown:

[0204] In the first prediction stage:

[0205] The first power prediction model is used to predict wind and solar power values ​​based on the forecast data from the long-term forecast period, thereby determining the initial number n of AEL electrolyzers to be started. The second power prediction model is used to predict wind and solar power values ​​based on the forecast data from the first short-term forecast period, thereby determining the initial number m of PEMEL electrolyzers to be started based on n and the wind and solar power forecast values. The specific implementation method of the first prediction stage can be found in S401 to S408.

[0206] In the second prediction stage:

[0207] For each target short-term forecast period, the wind power P is predicted using the second power prediction model based on the forecast data of the target short-term forecast period. wi Then, based on the risk power prediction value of the target short-term prediction period and the initial startup number of each type of electrolytic cell obtained in the first prediction stage (including the initial startup number m of the PEMEL electrolytic cell and the initial startup number n of the AEL electrolytic cell), the operating status of the hybrid electrolytic cell cluster is determined, and the status of each type of electrolytic cell in the hybrid electrolytic cell cluster is controlled so that the hybrid electrolytic cell cluster operates in the corresponding operating status within the target short-term prediction period, that is, each electrolytic cell is in the expected state.

[0208] In this embodiment, when the first condition (P wi >nP A And P wi -nP A >mP P ), control the hybrid electrolyzer cluster to operate in the first mode.

[0209] Specifically, the operating states of the hybrid electrolyzer cluster in the first mode include:

[0210] Each target overload PEMEL electrolyzer is operated at a maximum safe operating power, all initial AEL electrolyzers are operated at a rated power, and the initial PEMEL electrolyzers except the target overload PEMEL electrolyzer are operated at a rated power.

[0211] It should be noted that the method for determining the operating status of the hybrid electrolyzer cluster in the first mode can be referred to S504 to S505.

[0212] In this embodiment, when the second condition (P wi >nPA And P wi -nP A ≤mP P ), control the hybrid electrolyzer cluster to operate in the second mode.

[0213] Specifically, the operating states of the hybrid electrolyzer cluster in the second mode include:

[0214] All initial AEL electrolyzers are operated at rated power, each target-operation PEMEL electrolyzer is operated at rated power, and the initial PEMEL electrolyzers other than the target-operation PEMEL electrolyzers are in a shutdown state.

[0215] It should be noted that the method for determining the operating status of the hybrid electrolyzer cluster in the second mode can be referred to S507 to S508.

[0216] In this embodiment, when the third condition is met (P wi ≤nP A And Pwi>0.4nP A ), control the hybrid electrolyzer cluster to operate in the third mode.

[0217] Specifically, the operating states of the hybrid electrolyzer cluster in the third mode include:

[0218] Each target low-power AEL electrolyzer operates at the lowest operating power, the initial AEL electrolyzers except the target low-power AEL electrolyzer operate at rated power, and all initial PEMEL electrolyzers are in a shutdown state.

[0219] It should be noted that the method for determining the operating status of the hybrid electrolyzer cluster in the third mode can be referred to S511 to S512.

[0220] In this embodiment, when the fourth condition (P wi ≤nP A And P wi ≤0.4nPA), controlling the hybrid electrolyzer cluster to operate in the fourth mode.

[0221] Specifically, in the fourth mode, the operating states of the hybrid electrolyzer cluster include:

[0222] Each target-operated AEL electrolyzer is operated at rated power, and all initial AEL electrolyzers except the target-operated AEL electrolyzer are in a shutdown state, and all initial PEMEL electrolyzers are in a shutdown state. In other words, only the target-operated number of initial AEL electrolyzers are operated at rated power.

[0223] It should be noted that the method for determining the operating status of the hybrid electrolyzer cluster in the third mode can be referred to S514 to S515.

[0224] It can be seen that by controlling the switching of various operating modes based on the operating status of the hybrid electrolyzer cluster under different conditions, and comprehensively considering the economy of the alkaline electrolyzer and the flexibility of the proton exchange membrane water electrolysis technology, the AEL electrolyzer is started up before the PEMEL electrolyzer, which improves the economy of the hybrid electrolyzer cluster and makes the initial AEL electrolyzer operate at rated power as much as possible, so as to reduce the fluctuating operation of the AEL electrolyzer and increase its service life.

[0225] Furthermore, the operating status data is updated in each short-term prediction cycle. The operating status data includes the operating status of each initial AEL electrolyzer and initial PEMEL electrolyzer in the current (previous short-term prediction cycle) and the periodic operation sequence corresponding to each status. The mode switching is performed in combination with the operating status data as follows:

[0226] When the first condition is met, the identifiers of PEMEL electrolyzers whose order is not greater than the target overload number are obtained from the overload PEMEL sequence and used as target overload PEMEL electrolyzers. In the first mode, the PEMEL electrolyzers operating at the maximum safe operating power are the target overload PEMEL electrolyzers.

[0227] When the second condition is met, the target number of PEMEL electrolyzers to be operated is determined based on the target number of PEMEL electrolyzers to be operated and the currently operating initial PEMEL electrolyzers. In the second mode, the target number of PEMEL electrolyzers to be operated includes as many of the currently operating initial PEMEL electrolyzers as possible, thereby reducing the frequency of starting and stopping individual PEMEL electrolyzers.

[0228] In summary, according to the rotation control strategy, the operating time of the PEMEL electrolyzer in the three states of rated power operation, overload power operation and shutdown is balanced to balance the service life of the PEMEL electrolyzer and increase its service cycle.

[0229] When the third condition is met, an AEL electrolyzer whose rank is not greater than the low-power operation number is obtained from the low-power AEL sequence as the target low-power AEL electrolyzer. In the third mode, each target low-power AEL electrolyzer operates at the lowest operating power.

[0230] When the fourth condition is met, the target operating AEL electrolyzer is determined based on the target operating number of AEL electrolyzers and the currently running initial AEL electrolyzers. In the fourth mode, the target operating AEL electrolyzers include as many of the currently running initial AEL electrolyzers as possible, reducing the start and stop frequency of a single AEL electrolyzer.

[0231] In summary, according to the rotation control strategy, the operating time of the AEL electrolyzer in the three states of rated power operation, low power operation and shutdown is balanced to balance the service life of the AEL electrolyzer and increase its service cycle.

[0232] The above describes a control method for a hybrid electrolytic cell cluster provided by an embodiment of the present application. The following describes a device for executing the control method for the hybrid electrolytic cell cluster.

[0233] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of a control device for a hybrid electrolytic cell cluster provided in an embodiment of the present application. Figure 7 As shown, the control device 700 of the hybrid electrolyzer cluster includes:

[0234] The first power prediction unit 701 is configured to, in response to reaching a long-term prediction opportunity of a preset long-term prediction period, predict a wind / solar power prediction value of the long-term prediction period using a pre-trained first power prediction model based on the prediction data of the long-term prediction period;

[0235] A first startup quantity determination unit 702 is configured to obtain an initial startup quantity of the AEL electrolyzer based on the rated power of the AEL electrolyzer and the wind and solar power prediction value of the long-term prediction period;

[0236] A second power prediction unit 703 is configured to, in response to reaching a short-term prediction opportunity of a preset short-term prediction period, predict a wind / solar power prediction value of the short-term prediction period using a pre-trained second power prediction model based on the prediction data of the short-term prediction period, where the short-term prediction period is a sub-period of the long-term prediction period;

[0237] a second startup quantity determining unit 704 configured to, if the short-term prediction period is the first short-term prediction period, obtain an initial startup quantity of the PEMEL electrolyzer based on the rated power of the PEMEL electrolyzer, the predicted wind and solar power value of the short-term prediction period, and the initial startup quantity of the AEL electrolyzer;

[0238] A first control unit 705 is configured to issue an initial control instruction based on the initial startup number of the AEL electrolyzers and the initial startup number of the PEMEL electrolyzers, so as to control the initial startup number of the AEL electrolyzers and the initial startup number of the PEMEL electrolyzers to start up, and both of them operate at rated power;

[0239] an operating state prediction unit 706 for determining, if the short-term prediction period is a target short-term prediction period, an operating state of the hybrid electrolyzer cluster based on the predicted wind and solar power values, the initial startup number of the AEL electrolyzers, and the initial startup number of the PEMEL electrolyzers in the target short-term prediction period, where the operating state of the hybrid electrolyzer cluster includes the expected state of each of the initial AEL electrolyzers and each of the initial PEMEL electrolyzers, and the target short-term prediction period is any short-term prediction period other than the first short-term prediction period;

[0240] The second control unit 707 is configured to issue a target control instruction based on the operating state of the hybrid electrolyzer cluster, so as to control each of the initial AEL electrolyzers and each of the initial PEMEL electrolyzers to be in a corresponding expected state.

[0241] It should be noted that the specific functions of the above units may correspond to the relevant steps of the control method of the hybrid electrolytic cell cluster in the above embodiments.

[0242] An electronic device is also provided in an embodiment of the present application. Figure 8 , which shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiments of the present application. The electronic device in the embodiments of the present application may include but is not limited to fixed terminals such as mobile phones, laptops, PDAs (personal digital assistants), PADs (tablet computers), desktop computers, etc. Figure 8 The electronic device shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0243] like Figure 8 As shown, the electronic device may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 801, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 802 or a program loaded from a storage device 808 into a random access memory (RAM) 803. When the electronic device is powered on, the RAM 803 also stores various programs and data required for the operation of the electronic device. The processing device 801, ROM 802, and RAM 803 are connected to each other via a bus 804. An input / output (I / O) interface 805 is also connected to the bus 804.

[0244] Typically, the following devices may be connected to the I / O interface 805: an input device 806 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 807 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 808 including, for example, a memory card, a hard disk, etc.; and a communication device 809. The communication device 809 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although Figure 8 The electronic device is shown with various devices, but it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed instead.

[0245] An embodiment of the present application also provides a computer program product including computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements any one of the control methods for the hybrid electrolyzer cluster provided in the embodiment of the present application.

[0246] A computer-readable storage medium is also provided in an embodiment of the present application. The storage medium carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any one of the control methods for the hybrid electrolytic cell cluster provided in the embodiment of the present application.

[0247] It should also be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed across multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. In addition, in the drawings of the device embodiments provided in this application, the connection relationship between the modules indicates that there is a communication connection between them, which can be specifically implemented as one or more communication buses or signal lines.

[0248] Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course can also be implemented by special hardware including application-specific integrated circuits, special CPUs, special memories, special components, etc. In general, all functions performed by computer programs can be easily implemented with corresponding hardware, and the specific hardware structures used to implement the same function can also be diverse, such as analog circuits, digital circuits or special circuits, etc. However, for the present application, software program implementation is a better implementation method in most cases. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer's floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk or optical disk, etc., and includes a number of instructions to enable a computer device (which can be a personal computer, training equipment, or network equipment, etc.) to execute the methods described in each embodiment of the present application.

[0249] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0250] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, a computer, a training device or a data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website, computer, training device or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a training device, a data center that includes one or more available media integrations. The available medium can be a magnetic medium, (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid-state drive (SSD)).

Claims

1. A control method for a hybrid electrolyzer cluster, characterized in that: The hybrid electrolyzer cluster includes multiple AEL electrolyzers and multiple PEMEL electrolyzers, including: In response to reaching a long-term prediction opportunity of a preset long-term prediction period, based on the prediction data of the long-term prediction period, using a pre-trained first power prediction model to predict a wind and solar power prediction value of the long-term prediction period; Obtaining an initial startup quantity of the AEL electrolyzer based on the rated power of the AEL electrolyzer and the predicted wind and solar power values ​​during the long-term prediction period; In response to reaching a short-term prediction opportunity of a preset short-term prediction period, based on the prediction data of the short-term prediction period, using a pre-trained second power prediction model to predict a wind and solar power prediction value of the short-term prediction period, where the short-term prediction period is a sub-period of the long-term prediction period; If the short-term prediction period is the first short-term prediction period, obtaining the initial startup number of the PEMEL electrolyzer based on the rated power of the PEMEL electrolyzer, the predicted wind and solar power value in the short-term prediction period, and the initial startup number of the AEL electrolyzer; Based on the initial startup number of the AEL electrolyzers and the initial startup number of the PEMEL electrolyzers, issuing an initial control instruction to control the initial startup number of the AEL electrolyzers and the initial startup number of the PEMEL electrolyzers to start up, and both operate at rated power; If the short-term prediction period is a target short-term prediction period, determining the operating state of the hybrid electrolyzer cluster according to the wind and solar power forecast value, the initial startup number of the AEL electrolyzers, and the initial startup number of the PEMEL electrolyzers in the target short-term prediction period, the operating state of the hybrid electrolyzer cluster including the expected state of each of the initial AEL electrolyzers and each of the initial PEMEL electrolyzers, and the target short-term prediction period is any short-term prediction period other than the first short-term prediction period; Based on the operating status of the hybrid electrolyzer cluster, target control instructions are issued to control each of the initial AEL electrolyzers and each of the initial PEMEL electrolyzers to be in a corresponding expected state.

2. The control method of the hybrid electrolyzer cluster according to claim 1, characterized in that: The wind and solar power prediction value of the long-term prediction period includes the wind and solar power prediction value of each first-category sub-period of the long-term prediction period; The obtaining of the initial startup quantity of the AEL electrolyzer based on the rated power of the AEL electrolyzer and the wind / solar power forecast value of the long-term forecast period includes: For each of the first sub-periods, obtaining the average daily operating number of the AEL electrolyzer according to the rated power of the AEL electrolyzer and the predicted wind and solar power values ​​of the first sub-period; The minimum value of the daily average operating quantity of the AEL electrolytic cells in each of the first-type sub-periods is obtained as the initial startup quantity of the AEL electrolytic cells.

3. The control method of the hybrid electrolyzer cluster according to claim 1, characterized in that: The obtaining of the initial startup number of the PEMEL electrolyzer based on the rated power of the PEMEL electrolyzer, the wind and solar power forecast value of the short-term forecast period, and the initial startup number of the AEL electrolyzer comprises: Calculating the product of the initial startup quantity and the rated power of the AEL electrolyzer to obtain the rated total power of the AEL electrolyzer; Calculate the difference between the wind and solar power forecast value of the first short-term forecast period and the rated total power of the AEL electrolyzer to obtain the redundant wind and solar power of the first short-term forecast period; The initial startup quantity of the PEMEL electrolyzer is obtained according to the redundant wind and solar power in the first short-term prediction period and the rated power of the PEMEL electrolyzer.

4. The control method of the hybrid electrolyzer cluster according to claim 1, characterized in that: The determining the operating state of the hybrid electrolyzer cluster according to the wind / solar power forecast value of the target short-term forecast period, the initial startup number of the AEL electrolyzers, and the initial startup number of the PEMEL electrolyzers includes: Calculating the product of the initial startup quantity and the rated power of the PEMEL electrolyzer to obtain the rated total power of the PEMEL electrolyzer; Calculating the product of the initial startup quantity and the rated power of the AEL electrolyzer to obtain the rated total power of the AEL electrolyzer; Calculate the difference between the wind and solar power forecast value of the target short-term forecast period and the rated total power of the PEMEL electrolyzer to obtain the redundant wind and solar power of the target short-term forecast period; The operating status of the hybrid electrolyzer cluster is determined based on the relationship between the wind and solar power of the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power of the target short-term forecast period and the rated total power of the AEL electrolyzer.

5. The control method of the hybrid electrolyzer cluster according to claim 4, characterized in that: If the relationship satisfies: the wind and solar power forecast value of the target short-term forecast period is greater than the rated total power of the AEL electrolyzer, and the redundant wind and solar power of the target short-term forecast period is greater than the rated total power of the PEMEL electrolyzer; The determining the operating state of the hybrid electrolyzer cluster based on the relationship between the wind and solar power in the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power in the target short-term forecast period, and the rated total power of the AEL electrolyzer includes: determining a target overload number of the PEMEL electrolyzer based on the maximum safe operating power of the PEMEL electrolyzer; Obtaining a first cycle operation sequence corresponding to the overload state, the first cycle operation sequence including identifiers of the PEMEL electrolyzers sorted in ascending order according to cumulative overload operation time; Obtaining a PEMEL electrolyzer whose order is not greater than the target overload number from the first period operation sequence as a target overload PEMEL electrolyzer; determining an operating state of the hybrid electrolyzer cluster based on the target overloaded PEMEL electrolyzer; The operating status of the hybrid electrolyzer cluster includes: each target overload PEMEL electrolyzer operates at the maximum safe operating power, all initial AEL electrolyzers operate at rated power, and the initial PEMEL electrolyzers except the target overload PEMEL electrolyzer operate at rated power.

6. The control method of the hybrid electrolyzer cluster according to claim 4, characterized in that: If the relationship satisfies: the wind and solar power forecast value of the target short-term forecast period is greater than the rated total power of the AEL electrolyzer, and the redundant wind and solar power of the target short-term forecast period is not greater than the rated total power of the PEMEL electrolyzer; The determining the operating state of the hybrid electrolyzer cluster based on the relationship between the wind and solar power in the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power in the target short-term forecast period, and the rated total power of the AEL electrolyzer includes: determining a target operating number of the PEMEL electrolyzers based on the rated power of the PEMEL electrolyzers and the redundant wind and solar power in the target short-term forecast period; determining a target operating PEMEL electrolyzer based on the target operating number of the PEMEL electrolyzers and the current state of each of the initial PEMEL electrolyzers; operating a PEMEL electrolyzer based on the target to determine an operating state of the hybrid electrolyzer cluster; The operating status of the hybrid electrolyzer cluster includes: all the initial AEL electrolyzers operate at rated power, each of the target-operating PEMEL electrolyzers operates at rated power, and the initial PEMEL electrolyzers except the target-operating PEMEL electrolyzers are in a shutdown state.

7. The control method of the hybrid electrolyzer cluster according to claim 4, characterized in that: If the relationship satisfies: the wind and solar power forecast value of the target short-term forecast period is not greater than the rated total power of the AEL electrolyzer and is greater than the minimum operating power of the AEL electrolyzer; The determining the operating state of the hybrid electrolyzer cluster based on the relationship between the wind and solar power in the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power in the target short-term forecast period, and the rated total power of the AEL electrolyzer includes: determining a low-power operation quantity of the AEL electrolyzer based on a minimum operating power of the AEL electrolyzer; Obtaining a second periodic operation sequence corresponding to the low power state, the second periodic operation sequence including identifiers of the AEL electrolyzers sorted in ascending order according to the accumulated low power operation time; Obtaining an AEL electrolytic cell whose rank is not greater than the low-power operation number from the second period operation sequence as a target low-power AEL electrolytic cell; determining an operating state of the hybrid electrolyzer cluster based on the target low-power AEL electrolyzer; The operating status of the hybrid electrolyzer cluster includes: each of the target low-power AEL electrolyzers operates at the minimum operating power, the initial AEL electrolyzers other than the target low-power AEL electrolyzers operate at rated power, and all the initial PEMEL electrolyzers are in a shutdown state.

8. The control method of the hybrid electrolyzer cluster according to claim 4, characterized in that: If the relationship satisfies: the wind and solar power forecast value of the target short-term forecast period is not greater than the minimum operating power of the AEL electrolyzer; The determining the operating state of the hybrid electrolyzer cluster based on the relationship between the wind and solar power in the target short-term forecast period, the rated total power of the PEMEL electrolyzer, the redundant wind and solar power in the target short-term forecast period, and the rated total power of the AEL electrolyzer includes: Determining a target operating number of the AEL electrolyzer based on the wind and solar power forecast value of the target short-term forecast period and the rated power of the AEL electrolyzer; determining a target operating AEL electrolyzer based on the target operating number of the AEL electrolyzers and the current state of each of the initial AEL electrolyzers; operating the AEL electrolyzer based on the target to determine an operating state of the hybrid electrolyzer cluster; The operating status of the hybrid electrolyzer cluster includes: Each of the target operation AEL electrolyzers operates at rated power, the initial AEL electrolyzers except the target operation AEL electrolyzers are all in a shutdown state, and all initial PEMEL electrolyzers are in a shutdown state.

9. An electronic device, characterized in that: comprising at least one processor and a memory connected to the processor, wherein: The memory is used to store computer programs; The processor is configured to execute the computer program so that the electronic device can implement the method for controlling a hybrid electrolyzer cluster according to any one of claims 1 to 8.

10. A computer storage medium, characterized in that The storage medium carries one or more computer programs, which, when executed by an electronic device, enable the electronic device to implement the control method for the hybrid electrolyzer cluster as described in any one of claims 1 to 8.

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