Start-stop control method of a hydrogen production system by electrolysis of water and related device

Abstract

The application discloses a start-stop control method and related device of a water electrolysis hydrogen production system, and relates to the technical field of intelligent control. In response to a received start-stop instruction of the water electrolysis hydrogen production system, the following start-stop control operation process is executed until the operating state of the water electrolysis hydrogen production system reaches a target operating state; the start-stop control operation process comprises the following steps: according to initial operating parameters, predicting operating parameters of the water electrolysis hydrogen production system in a preset time domain to obtain predicted operating parameters; from a preset operating track, determining operating parameters with the minimum error to the predicted operating parameters as target start-stop control parameters; and based on the target start-stop control parameters, controlling and adjusting the operating state of the water electrolysis hydrogen production system. The application predicts the future operating state, so that the start-stop adjustment does not deviate from the operating trend of the water electrolysis hydrogen production system, and dynamic start-stop adjustment is performed in advance, thereby reducing the response delay in the start-stop process.

Description

Technical Field

[0001] This application relates to the field of intelligent control technology, and in particular to a start-stop control method and related apparatus for an electrolytic water hydrogen production system. Background Technology

[0002] Electrolysis of water to produce hydrogen is a technology that uses electricity to decompose water into hydrogen and oxygen, and it is an important way to achieve large-scale production and sustainable utilization of hydrogen energy. Because hydrogen demand fluctuates, the output of the electrolysis system needs to be adjusted according to demand. For example, if chemical plants reduce their hydrogen consumption at night, the electrolysis system can be shut down or operate at a reduced load. By controlling the start and stop of the electrolysis system, hydrogen surplus or shortage can be avoided, while also reducing hydrogen storage pressure and safety risks.

[0003] Currently, the start-up and shutdown procedures of water electrolysis hydrogen production systems are usually based on the operator's experience. The control quantities for start-up and shutdown adjustments are determined solely by the current operating status of the system, resulting in a certain lag in the start-up and shutdown adjustments. This leads to overshoot or oscillation problems during the start-up and shutdown process, which has a significant negative impact on system performance, safety, equipment lifespan, and operational stability. Summary of the Invention

[0004] In view of the above problems, this application provides a start-up and shutdown control method and related apparatus for a water electrolysis hydrogen production system to reduce response delay during start-up and shutdown. The specific solution is as follows:

[0005] The first aspect of this application provides a start-up and shutdown control method for a water electrolysis hydrogen production system, comprising:

[0006] In response to the received start / stop command of the water electrolysis hydrogen production system, the following start / stop control operation process is executed until the operating state of the water electrolysis hydrogen production system reaches the target operating state;

[0007] The start / stop control operation process includes:

[0008] Obtain initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system;

[0009] If the initial operating parameters do not reach the operating parameters corresponding to the target operating state, the preset operating trajectory corresponding to the start / stop command is obtained. The preset operating trajectory is the trajectory of the change of the operating parameters of the water electrolysis hydrogen production system during the pre-set operation of controlling the start or stop of the water electrolysis hydrogen production system to the corresponding target operating state.

[0010] Based on the initial operating parameters, the operating parameters of the water electrolysis hydrogen production system in a preset time domain are predicted to obtain the predicted operating parameters. The preset time domain is a preset time period after the current moment.

[0011] From the preset operating trajectory, the operating parameter with the smallest error compared to the predicted operating parameter is determined as the target start-stop control parameter;

[0012] Based on the target start-stop control parameters, the operating status of the water electrolysis hydrogen production system is controlled and adjusted.

[0013] In one possible implementation, determining the operating parameter with the smallest error to the predicted operating parameter from the preset operating trajectory, as the target start-stop control parameter, includes:

[0014] Based on the preset running trajectory, the minimum value that satisfies the preset constraint in the preset function is determined as the target start-stop control parameter. The preset function represents the difference relationship between the running parameters in the preset running trajectory and the predicted running parameters. The preset constraint is the safety critical value of each of the running parameters.

[0015] In one possible implementation, predicting the operating parameters of the water electrolysis hydrogen production system in a preset time domain based on the initial operating parameters, and obtaining the predicted operating parameters, includes:

[0016] The initial operating parameters are input into a pre-trained dynamic model of the water electrolysis hydrogen production system. Based on the initial operating parameters, the dynamic model predicts the operating parameters of the water electrolysis hydrogen production system in a preset time domain, thus obtaining the predicted operating parameters. The dynamic model of the water electrolysis hydrogen production system is a model constructed based on state equations to simulate the operating state of the water electrolysis hydrogen production system.

[0017] One possible implementation also includes:

[0018] Obtain the actual operating parameters of the water electrolysis hydrogen production system in the preset time domain;

[0019] The dynamic model of the water electrolysis hydrogen production system is updated based on the deviation between the actual operating parameters and the predicted operating parameters.

[0020] In one possible implementation, after receiving the start / stop command for the water electrolysis hydrogen production system, the method further includes:

[0021] Determine whether the start / stop command is a start command;

[0022] If the start / stop command is the start command, then based on the initial operating parameters, it is determined whether the water electrolysis hydrogen production system is in a standby state;

[0023] If the water electrolysis hydrogen production system is not in the ready-to-use state, control the water electrolysis hydrogen production system to reset its state until the water electrolysis hydrogen production system is in the ready-to-use state.

[0024] When the water electrolysis hydrogen production system is not in the ready-to-use state, the following steps are performed: obtaining the initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, the preset operating trajectory corresponding to the start / stop command, and subsequent steps.

[0025] A second aspect of this application provides a start-stop control device for a water electrolysis hydrogen production system, comprising:

[0026] The instruction response unit is used to respond to the received start / stop instruction of the water electrolysis hydrogen production system, jump to execute the start / stop control operation process of the start / stop control operation unit, until the operating state of the water electrolysis hydrogen production system reaches the target operating state.

[0027] The start / stop control operation unit includes:

[0028] The parameter acquisition unit is used to acquire initial operating parameters that characterize the current operating status of the water electrolysis hydrogen production system;

[0029] The trajectory acquisition unit is used to acquire the preset operating trajectory corresponding to the start / stop command when the initial operating parameters do not reach the operating parameters corresponding to the target operating state. The preset operating trajectory is the trajectory of the change of operating parameters of the water electrolysis hydrogen production system during the operation process of controlling the start or stop of the water electrolysis hydrogen production system to the corresponding target operating state.

[0030] The parameter prediction unit is used to predict the operating parameters of the water electrolysis hydrogen production system in a preset time domain based on the initial operating parameters, and to obtain the predicted operating parameters. The preset time domain is a preset time period after the current moment.

[0031] The control parameter determination unit is used to determine the operating parameter with the smallest error with the predicted operating parameter from the preset operating trajectory, and use it as the target start-stop control parameter;

[0032] The system control unit is used to control and adjust the operating status of the water electrolysis hydrogen production system based on the target start-stop control parameters.

[0033] In one possible implementation, the control parameter determining unit includes:

[0034] The target parameter determination subunit is used to determine the minimum value of the preset function that satisfies the preset constraint condition based on the preset running trajectory, as the target start-stop control parameter. The preset function represents the difference relationship between the running parameters in the preset running trajectory and the predicted running parameters, and the preset constraint condition is the safety critical value of each of the running parameters.

[0035] A third aspect of this application provides a computer program product, including computer-readable instructions, which, when executed on an electronic device, cause the electronic device to implement the start-stop control method for the water electrolysis hydrogen production system described in the first aspect or any implementation thereof.

[0036] A fourth aspect of this application provides an electronic device, including at least one processor and a memory connected to the processor, wherein:

[0037] The memory is used to store computer programs;

[0038] The processor is used to execute the computer program so that the electronic device can implement the start-stop control method of the water electrolysis hydrogen production system described in the first aspect or any implementation thereof.

[0039] The fifth aspect of this application provides a computer storage medium carrying one or more computer programs, which, when executed by an electronic device, enable the electronic device to implement the start-stop control method for the electrolytic water hydrogen production system described in the first aspect or any implementation thereof.

[0040] By employing the above technical solution, the start-up and shutdown control method for the water electrolysis hydrogen production system provided in this application predicts the operating parameters for a future period based on the current initial operating parameters of the water electrolysis hydrogen production system during the start-up and shutdown process. It then determines the operating parameters closest to the predicted operating parameters from the target operating trajectory as the target control parameters, and adjusts the system parameters during the start-up and shutdown process according to these target control parameters. If the water electrolysis hydrogen production system still has not reached the target operating state after the control adjustment, the above steps are repeated, so that the final start-up and shutdown control effect can achieve a slow start-up and shutdown adjustment effect according to the pre-set start-up and shutdown trajectory. Simultaneously, by predicting the future operating state, the start-up and shutdown adjustment does not deviate from the operating trend of the water electrolysis hydrogen production system, and dynamic start-up and shutdown adjustments are performed in advance, reducing response delays during the start-up and shutdown process. Attached Figure Description

[0041] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0042] Figure 1 A flowchart illustrating a start-stop control method for a water electrolysis hydrogen production system provided in this application embodiment;

[0043] Figure 2 An optional system architecture diagram for implementing the start-stop control method of a water electrolysis hydrogen production system provided in the embodiments of this application;

[0044] Figure 3 A schematic diagram of the start-stop control device for a water electrolysis hydrogen production system provided in this application embodiment;

[0045] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0046] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is for explaining specific embodiments only and is not intended to limit the scope of this application.

[0047] The embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0048] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0049] In existing technologies, the start-up and shutdown operations of water electrolysis hydrogen production systems rely on human experience, which introduces a certain degree of lag. This leads to overshoot or oscillation problems during the start-up and shutdown process, significantly negatively impacting system performance, safety, equipment lifespan, and operational stability. To address these technical problems, this application provides a start-up and shutdown control method for a water electrolysis hydrogen production system. The start-up and shutdown control method of the water electrolysis hydrogen production system according to this application embodiment is described in detail below with reference to the accompanying drawings.

[0050] Reference Figure 1 , Figure 1 This application provides a flowchart illustrating a start-stop control method for a water electrolysis hydrogen production system, as shown in the embodiments below. Figure 1 As shown in the embodiment of this application, a start-stop control method for a water electrolysis hydrogen production system may include steps S110 to S160, which are described in detail below.

[0051] Step S110: Respond to the received start / stop command of the water electrolysis hydrogen production system.

[0052] It should be noted that this application can be applied, but is not limited to, to applications with data processing capabilities and the ability to control water electrolysis hydrogen production systems, or to cloud services provided by cloud-side servers. Optionally, in the embodiments of this application, the start-stop control method for the water electrolysis hydrogen production system can be applied to a controller that controls the water electrolysis hydrogen production system. The operator can send start or stop commands to the controller via a mobile terminal that wirelessly communicates with the controller. Alternatively, the hydrogen production demand of the water electrolysis hydrogen production system can be pre-set in the controller, and the controller can decide whether to issue start or stop commands in real time based on the hydrogen production demand and the hydrogen production effect of the water electrolysis hydrogen production system.

[0053] Understandably, before starting the system, it is necessary to determine whether the electrolyzer and other equipment in the system are in a ready-to-use state and free from abnormalities, in order to improve the safety of the startup operation. Based on this, in one possible implementation, after receiving a start / stop command for the water electrolysis hydrogen production system, the process further includes: determining whether the start / stop command is a start command; if the start / stop command is a start command, determining whether the water electrolysis hydrogen production system is in a ready-to-use state based on the initial operating parameters; if the water electrolysis hydrogen production system is not in a ready-to-use state, controlling the water electrolysis hydrogen production system to reset its state until it is in a ready-to-use state; if the water electrolysis hydrogen production system is not in a ready-to-use state, executing the process of acquiring the initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, the preset operating trajectory corresponding to the start / stop command, and subsequent steps.

[0054] The threshold range for each operating parameter can be preset. Based on the threshold range, it is determined whether the collected current operating parameters are within their corresponding threshold ranges. If all operating parameters are within the threshold range, it can be determined that the water electrolysis hydrogen production system is in a normal standby state, and subsequent steps S120-S170 are executed. However, if at least one of the operating parameters is outside the threshold range, the water electrolysis hydrogen production system is abnormal and cannot start normally. Therefore, the controller may not respond to the received start command.

[0055] Understandably, operating parameters may also include the assembly status of the hardware equipment in the water electrolysis hydrogen production system, such as whether the water and power supply are normal, and whether the opening and closing status of the pipeline valves is normal. If it is in an abnormal state, the valves or other hardware can be controlled to reset to the normal state. If the hardware equipment cannot be controlled, a reset command can be sent to the operator to remind the operator to reset it. After the reset, the above-mentioned start command will be responded to, and steps S120-S170 will be executed.

[0056] Step S120: Obtain the initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, as well as the preset operating trajectory corresponding to the start / stop command. The preset operating trajectory is the trajectory of the change of operating parameters of the water electrolysis hydrogen production system during the pre-set operation of controlling the start or stop of the water electrolysis hydrogen production system to the corresponding target operating state.

[0057] Upon receiving a start / stop command, the system acquires the current operating parameters of the water electrolysis hydrogen production system. Optionally, various sensors installed in the water electrolysis hydrogen production system can be used to collect various operating parameters, such as current i, temperature T, pressure P, electrolysis voltage V, hydrogen production rate y, oxygen concentration A1 in hydrogen, and hydrogen concentration A2 in oxygen.

[0058] Meanwhile, during the pre-configured start-up or shutdown of the water electrolysis hydrogen production system, various operating parameters of the system are obtained. It's understood that, assuming the system current *i* is 0 before startup and 10 after startup, a sudden increase in the current to 10 would impact the system's equipment, affecting both the hydrogen production efficiency and the lifespan of the equipment. Similarly, a sudden drop in system parameters during shutdown would also negatively affect the system. Therefore, this embodiment pre-sets target operating trajectories for the start-up or shutdown commands. These target trajectories are sloped, allowing the system to gradually reach its target operating state, thus avoiding the impact of sudden increases or decreases in operating parameters.

[0059] Step S130: Determine whether the initial operating parameters have reached the operating parameters corresponding to the target operating state. If not, proceed to step S140; if yes, end the start-up and shutdown control of the water electrolysis hydrogen production system.

[0060] It is understood that the target operating state is the state after the water electrolysis hydrogen production system has been started or stopped. It is then determined whether the current initial operating parameters are consistent with the operating parameters corresponding to the target operating state. If they are consistent, it proves that the water electrolysis hydrogen production system has been successfully started or stopped, and control of the system can be terminated. Conversely, if they are inconsistent, it proves that the system has not been successfully started or stopped, and steps S130-S160 should be continued until the water electrolysis hydrogen production system reaches the target operating state.

[0061] Step S140: Based on the initial operating parameters, predict the operating parameters of the water electrolysis hydrogen production system in a preset time domain to obtain the predicted operating parameters. The preset time domain is a preset time period after the current moment.

[0062] Optionally, a state prediction model for the water electrolysis hydrogen production system is constructed and trained based on technologies such as machine learning, deep learning, and ensemble learning. Initial operating parameters are input into the trained state prediction model to enable it to predict the operating parameters of the water electrolysis hydrogen production system over a future period. Optionally, the future period, i.e., the preset time domain, is a preset time interval following the current moment, which can be less than or equal to the maximum duration of the complete start-up or shutdown process of the water electrolysis hydrogen production system. For example, if starting the water electrolysis hydrogen production system requires 30 seconds, then the preset time domain is less than or equal to 30 seconds.

[0063] In another possible implementation, step S140 may include: inputting initial operating parameters into a pre-trained dynamic model of the water electrolysis hydrogen production system, so that the dynamic model of the water electrolysis hydrogen production system predicts the operating parameters of the water electrolysis hydrogen production system in a preset time domain based on the initial operating parameters, thereby obtaining the predicted operating parameters. The dynamic model of the water electrolysis hydrogen production system is a model constructed based on state equations to simulate the operating state of the water electrolysis hydrogen production system.

[0064] The dynamic model of the water electrolysis hydrogen production system is a tool model used to simulate the dynamic characteristics of the water electrolysis hydrogen production process under different operating conditions during nuclear analysis. In the embodiments of this application, the dynamic model of the water electrolysis hydrogen production system is constructed in the form of state equations. The specific state equations can be referred to as the following equation (1).

[0065]

[0066] (1)

[0067] Where x is the state vector input to the dynamic model of the water electrolysis hydrogen production system, including initial operating parameters. u is the input variable of the water electrolysis hydrogen production system, which is the water electrolysis hydrogen production voltage; y is the output variable, such as the hydrogen production rate.

[0068] Based on the above state equation, the preset time-domain prediction parameters x are determined based on the prediction at the current time k. k+1|k , .

[0069] In another possible implementation, the method also includes: obtaining the actual operating parameters of the water electrolysis hydrogen production system in a preset time domain; and updating the dynamic model of the water electrolysis hydrogen production system based on the deviation between the actual operating parameters and the predicted operating parameters.

[0070] Reference Figure 2This application provides an optional system architecture diagram for implementing a start-stop control method for a water electrolysis hydrogen production system. The deviation between the operating state parameter y(k) of the water electrolysis hydrogen production system at time k and the predicted operating parameter y(k|k) at time k obtained from the prediction model (i.e., the dynamic model of the water electrolysis hydrogen production system) is input to a feedback correction module. The module continuously optimizes the model parameters of the prediction model. Optionally, Kalman filtering (KF) or moving average methods are used to update the prediction model parameters, correcting the prediction for the next prediction cycle or a preset time domain. By dynamically adjusting the prediction model, the accuracy of the predicted operating parameters is improved.

[0071] Step S150: From the preset running trajectory, determine the running parameter with the smallest error compared to the predicted running parameter, and use it as the target start-stop control parameter.

[0072] Step S160: Based on the target start-stop control parameters, control and adjust the operating status of the water electrolysis hydrogen production system.

[0073] It is understandable that the current system operating state changes in real time. If a start-stop control parameter is determined based on the current operating state, the system operating state will have changed by the time start-stop operations are performed, and the determined start-stop control parameter will no longer be applicable to the current operating state. This results in a certain lag in start-stop operations. Therefore, the start-stop control parameters determined based on the predicted operating parameters that characterize the future operating trend of the water electrolysis hydrogen production system are applicable to the future operating state of the system.

[0074] Furthermore, to ensure that start-up and shutdown operations do not deviate from the preset operating trajectory and to avoid inaccurate predicted operating parameters that could lead to sudden parameter changes in the adjusted water electrolysis hydrogen production system and affect its normal operation, this embodiment of the application determines the operating parameter closest to the predicted operating parameter from the preset operating trajectory as the target start-up and shutdown control parameter. This ensures that the final target operating parameter neither deviates from the operating trend of the water electrolysis hydrogen production system nor deviates from the preset operating trajectory, enabling a smooth transition between multiple states during the start-up and shutdown process and resolving the impact problem of step start-up and shutdown.

[0075] In one possible implementation, the implementation process of step S150 may include: based on the preset running trajectory, determining the minimum value of the preset function that satisfies the preset constraint conditions as the target start-stop control parameter, wherein the preset function represents the difference relationship between the running parameters in the preset running trajectory and the predicted running parameters, and the preset constraint conditions are the safety critical values ​​of each running parameter.

[0076] Optionally, based on the predicted operating parameters, with the objective of minimizing the error between the predicted operating parameters and the target trajectory, in the control time domain... Within, referring to the following equation (2), a quadratic programming or mixed integer programming algorithm is used to solve for the control sequence that minimizes the objective function J. In the control time domain, the length of the control sequence is optimized, and N can be selected. c Less than or equal to N p .

[0077] (2)

[0078] in, To control input variation penalty term coefficient (to avoid sudden current changes and protect the power supply and electrodes); This is the coefficient for the penalty term related to energy consumption changes; This represents the coefficient for the temperature change rate penalty term. Δu represents the predicted operating parameter u. k The difference between the running parameters and the target running trajectory, i k V k T k Let be the current value, voltage value, and temperature at time k, respectively. Based on the objective function, determine the operating parameters in the target trajectory that minimize the objective function J.

[0079] Understandably, the objective function is a multi-objective optimization function that minimizes start-up and shutdown time, energy consumption, and equipment damage. The objective function J contains a penalty term, and the penalty term coefficient... , , This is used to adjust the weight of the "penalty term" in the objective function to optimize the final value of the objective function. Specifically, the product of the penalty term coefficient and the state parameter represents the "penalty strength" for deviations of the state parameter from the expected value. It can be understood that when the state parameter deviates from the expected value, the product term will increase the value of the objective function, thereby "penalizing" the objective function in the process of finding the minimum value.

[0080] Among these, the state parameter values ​​are the key variables that need to be optimized. Specifically, this includes the energy consumption change penalty term coefficient. The corresponding product term " In this context, the product of current i and voltage V reflects the energy consumption of the electrochemical reaction; therefore, the product term in the objective function J... "Used to regulate and constrain the energy consumption of water electrolysis hydrogen production systems. Similarly, the temperature change rate penalty term coefficient..." In the corresponding product term, T reflects the temperature change of the water electrolysis hydrogen production system in the preset time domain, and the product term in the objective function J... This is used to prevent thermal stress on materials caused by rapid temperature changes in water electrolysis hydrogen production systems, which could lead to equipment damage.

[0081] This application's embodiments take into account that the water electrolysis hydrogen production system has certain safety constraints, such as the current range. Voltage range Pressure constraints Temperature constraints The concentration difference between oxygen in hydrogen and hydrogen in oxygen Only on this basis can the safe operation of the water electrolysis hydrogen production system be guaranteed.

[0082] Therefore, in this embodiment of the application, when solving for the control sequence that minimizes the objective function J, the aforementioned safety constraints are used as constraints to solve the problem, ensuring that the resulting control sequence satisfies the safety constraints while remaining within the preset operating trajectory. After obtaining the control sequence, only the first control variable... This serves as the target start-stop control parameter, and the operating status of the water electrolysis hydrogen production system is controlled and adjusted based on the target start-stop control parameter.

[0083] By employing the above technical solution, the start-up and shutdown control method for the water electrolysis hydrogen production system provided in this application predicts the operating parameters for a future period based on the current initial operating parameters of the water electrolysis hydrogen production system during the start-up and shutdown process. It then determines the operating parameters closest to the predicted parameters from the target operating trajectory as the target control parameters, and adjusts the system parameters during the start-up and shutdown process according to these target control parameters. If the water electrolysis hydrogen production system still has not reached the target operating state after the control adjustment, the above steps are repeated, ensuring that the final start-up and shutdown control effect achieves a slow start-up and shutdown adjustment according to the pre-set start-up and shutdown trajectory. This achieves a smooth transition between multiple states during the start-up and shutdown process of the water electrolysis hydrogen production system, solving the impact problem of abrupt start-up and shutdown. Simultaneously, by predicting future operating states, the start-up and shutdown adjustments do not deviate from the operating trend of the water electrolysis hydrogen production system, and dynamic start-up and shutdown adjustments are performed in advance, reducing response delays during the start-up and shutdown process.

[0084] The above describes a start-stop control method for a water electrolysis hydrogen production system provided by the embodiments of this application. The following will describe the apparatus for implementing the above-described start-stop control method for a water electrolysis hydrogen production system.

[0085] Please see Figure 3 , Figure 3 This is a schematic diagram of the start-stop control device for a water electrolysis hydrogen production system provided in an embodiment of this application. Figure 3 As shown, the start-stop control device for the water electrolysis hydrogen production system includes:

[0086] The instruction response unit 1100 is used to respond to the received start / stop instruction of the water electrolysis hydrogen production system, jump to execute the start / stop control operation process of the start / stop control operation unit 1200, until the operating state of the water electrolysis hydrogen production system reaches the target operating state.

[0087] The start / stop control operation unit 1200 includes:

[0088] The parameter acquisition unit is used to acquire the initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, as well as the preset operating trajectory corresponding to the start-stop command. The preset operating trajectory is the trajectory of the change of the operating parameters of the water electrolysis hydrogen production system during the operation process of controlling the start or stop of the water electrolysis hydrogen production system to the corresponding target operating state.

[0089] The parameter prediction unit is used to predict the operating parameters of the water electrolysis hydrogen production system in a preset time domain based on the initial operating parameters when the initial operating parameters do not reach the operating parameters corresponding to the target operating state, and to obtain the predicted operating parameters. The preset time domain is a preset time period after the current moment.

[0090] The control parameter determination unit is used to determine the operating parameter with the smallest error with the predicted operating parameter from the preset operating trajectory, and use it as the target start-stop control parameter;

[0091] The system control unit is used to control and adjust the operating status of the water electrolysis hydrogen production system based on the target start-stop control parameters.

[0092] In one possible implementation, the control parameter determining unit includes:

[0093] The target parameter determination subunit is used to determine the minimum value of the preset function that satisfies the preset constraint condition based on the preset running trajectory, as the target start-stop control parameter. The preset function represents the difference relationship between the running parameters in the preset running trajectory and the predicted running parameters, and the preset constraint condition is the safety critical value of each of the running parameters.

[0094] In one possible implementation, the parameter prediction unit includes:

[0095] The model prediction subunit is used to input the initial operating parameters into the pre-trained dynamic model of the water electrolysis hydrogen production system, so that the dynamic model of the water electrolysis hydrogen production system predicts the operating parameters of the water electrolysis hydrogen production system in a preset time domain based on the initial operating parameters, and obtains the predicted operating parameters. The dynamic model of the water electrolysis hydrogen production system is a model constructed based on the state equation to simulate the operating state of the water electrolysis hydrogen production system.

[0096] One possible implementation also includes:

[0097] The actual parameter acquisition subunit is used to acquire the actual operating parameters of the water electrolysis hydrogen production system in the preset time domain.

[0098] The model update subunit is used to update the dynamic model of the water electrolysis hydrogen production system based on the deviation between the actual operating parameters and the predicted operating parameters.

[0099] One possible implementation also includes:

[0100] The instruction judgment unit is used to determine whether the start / stop instruction is a start instruction after the instruction response unit 1100 executes the received start / stop instruction for the water electrolysis hydrogen production system.

[0101] A status judgment unit is used to determine whether the water electrolysis hydrogen production system is in a ready-to-use state based on the initial operating parameters when the judgment result of the instruction judgment unit is yes.

[0102] A state reset unit is used to control the electrolysis hydrogen production system to reset its state when the state judgment unit is negative, until the electrolysis hydrogen production system is in the ready-to-use state.

[0103] The jump unit is used to jump to the parameter acquisition unit to execute the acquisition of the initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, the preset operating trajectory corresponding to the start / stop command, and subsequent steps when the state judgment unit is in the yes state.

[0104] This application also provides an electronic device in its embodiments. (See reference...) Figure 4 The diagram illustrates a structural schematic suitable for implementing the electronic device in the embodiments of this application. The electronic device in the embodiments of this 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 4 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0105] like Figure 4 As shown, the electronic device may include a processing unit (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage device 608 into a random access memory (RAM) 603. When the electronic device is powered on, the RAM 603 also stores various programs and data required for the operation of the electronic device. The processing unit 601, ROM 602, and RAM 603 are interconnected via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0106] Typically, the following devices can be connected to I / O interface 605: input devices 606 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 607 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 608 including, for example, memory cards, hard drives, etc.; and communication devices 609. Communication device 609 allows electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 4 Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown. More or fewer devices may be implemented or have instead.

[0107] This application also provides a computer program product including computer-readable instructions, which, when executed on an electronic device, cause the electronic device to implement any of the start-stop control methods for an electrolytic water hydrogen production system provided in this application.

[0108] This application also provides a computer-readable storage medium carrying one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any of the start-stop control methods for the water electrolysis hydrogen production system provided in this application.

[0109] It should also be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. In addition, in the device embodiment drawings provided in this application, the connection relationship between modules indicates that they have a communication connection, which can be implemented as one or more communication buses or signal lines.

[0110] Through the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware, or it can be implemented by special-purpose hardware including application-specific integrated circuits, special-purpose CPUs, special-purpose memory, special-purpose components, etc. Generally, any function performed by a computer program can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be diverse, such as analog circuits, digital circuits, or special-purpose circuits. However, for this application, software program implementation is more often the preferred implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium, such as a computer floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk, or optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, training equipment, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0111] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product.

[0112] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, training device, or data center to another website, computer, training device, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

Claims

1. A start-stop control method for a water electrolysis hydrogen production system, characterized in that, include: In response to the received start / stop command of the water electrolysis hydrogen production system, the following start / stop control operation process is executed until the operating state of the water electrolysis hydrogen production system reaches the target operating state; The start / stop control operation process includes: Acquire initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, as well as the preset operating trajectory corresponding to the start / stop command. The preset operating trajectory is the trajectory of the change of operating parameters of the water electrolysis hydrogen production system during the pre-set operation of controlling the start or stop of the water electrolysis hydrogen production system to the corresponding target operating state. If the initial operating parameters do not reach the operating parameters corresponding to the target operating state, the operating parameters of the water electrolysis hydrogen production system in a preset time domain are predicted based on the initial operating parameters to obtain the predicted operating parameters. The preset time domain is a preset time period after the current moment. From the preset operating trajectory, the operating parameter with the smallest error compared to the predicted operating parameter is determined as the target start-stop control parameter; Based on the target start-stop control parameters, the operating status of the water electrolysis hydrogen production system is controlled and adjusted.

2. The start-stop control method for the water electrolysis hydrogen production system according to claim 1, characterized in that, The step of determining the operating parameter with the smallest error compared to the predicted operating parameter from the preset operating trajectory, and using it as the target start-stop control parameter, includes: Based on the preset running trajectory, the minimum value that satisfies the preset constraint in the preset function is determined as the target start-stop control parameter. The preset function represents the difference relationship between the running parameters in the preset running trajectory and the predicted running parameters. The preset constraint is the safety critical value of each of the running parameters.

3. The start-stop control method for the water electrolysis hydrogen production system according to claim 1, characterized in that, The step of predicting the operating parameters of the water electrolysis hydrogen production system in a preset time domain based on the initial operating parameters, and obtaining the predicted operating parameters, includes: The initial operating parameters are input into a pre-trained dynamic model of the water electrolysis hydrogen production system. Based on the initial operating parameters, the dynamic model predicts the operating parameters of the water electrolysis hydrogen production system in a preset time domain, thus obtaining the predicted operating parameters. The dynamic model of the water electrolysis hydrogen production system is a model constructed based on state equations to simulate the operating state of the water electrolysis hydrogen production system.

4. The start-stop control method for the water electrolysis hydrogen production system according to claim 3, characterized in that, Also includes: Obtain the actual operating parameters of the water electrolysis hydrogen production system in the preset time domain; The dynamic model of the water electrolysis hydrogen production system is updated based on the deviation between the actual operating parameters and the predicted operating parameters.

5. The start-stop control method for the water electrolysis hydrogen production system according to claim 1, characterized in that, After receiving the start / stop command for the water electrolysis hydrogen production system, the method further includes: Determine whether the start / stop command is a start command; If the start / stop command is the start command, then based on the initial operating parameters, it is determined whether the water electrolysis hydrogen production system is in a standby state; If the water electrolysis hydrogen production system is not in the ready-to-use state, control the water electrolysis hydrogen production system to reset its state until the water electrolysis hydrogen production system is in the ready-to-use state. When the water electrolysis hydrogen production system is not in the ready-to-use state, the following steps are performed: obtaining the initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, the preset operating trajectory corresponding to the start / stop command, and subsequent steps.

6. A start-stop control device for a water electrolysis hydrogen production system, characterized in that, include: The instruction response unit is used to respond to the received start / stop instruction of the water electrolysis hydrogen production system, jump to execute the start / stop control operation process of the start / stop control operation unit, until the operating state of the water electrolysis hydrogen production system reaches the target operating state. The start / stop control operation unit includes: The parameter acquisition unit is used to acquire the initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, as well as the preset operating trajectory corresponding to the start-stop command. The preset operating trajectory is the trajectory of the change of the operating parameters of the water electrolysis hydrogen production system during the operation process of controlling the start or stop of the water electrolysis hydrogen production system to the corresponding target operating state. The parameter prediction unit is used to predict the operating parameters of the water electrolysis hydrogen production system in a preset time domain based on the initial operating parameters when the initial operating parameters do not reach the operating parameters corresponding to the target operating state, and to obtain the predicted operating parameters. The preset time domain is a preset time period after the current moment. The control parameter determination unit is used to determine the operating parameter with the smallest error with the predicted operating parameter from the preset operating trajectory, and use it as the target start-stop control parameter; The system control unit is used to control and adjust the operating status of the water electrolysis hydrogen production system based on the target start-stop control parameters.

7. The start-stop control device for the water electrolysis hydrogen production system according to claim 1, characterized in that, The control parameter determination unit includes: The target parameter determination subunit is used to determine the minimum value of the preset function that satisfies the preset constraint condition based on the preset running trajectory, as the target start-stop control parameter. The preset function represents the difference relationship between the running parameters in the preset running trajectory and the predicted running parameters, and the preset constraint condition is the safety critical value of each of the running parameters.

8. A computer program product, characterized in that, The system includes computer-readable instructions that, when executed on an electronic device, cause the electronic device to implement the start-stop control method for the water electrolysis hydrogen production system as described in any one of claims 1 to 5.

9. An electronic device, characterized in that, It includes at least one processor and a memory connected to the processor, wherein: The memory is used to store computer programs; The processor is used to execute the computer program so that the electronic device can implement the start-stop control method of the water electrolysis hydrogen production system as described in any one of claims 1 to 5.

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 start-stop control method for the water electrolysis hydrogen production system as described in any one of claims 1 to 5.

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