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

Abstract

The invention discloses a start-stop control method of a water electrolysis hydrogen production system and a related device, and relates to the technical field of intelligent control. In response to the received start-stop instruction of the water electrolysis hydrogen production system, the start-stop control operation process is executed until the operation state of the water electrolysis hydrogen production system reaches the target operation state; the start-stop control operation process comprises the steps that according to the initial operation parameters, operation parameters of the water electrolysis hydrogen production system in a preset time domain are predicted, and predicted operation parameters are obtained; determining an operation parameter with the minimum error with the predicted operation parameter from a preset operation track as a target start-stop control parameter; and based on the target start-stop control parameters, the operation state of the water electrolysis hydrogen production system is controlled and adjusted. According to the method, by predicting the future operation state, start-stop adjustment is not separated from the operation trend of the water electrolysis hydrogen production system, dynamic start-stop adjustment is carried out in advance, and response delay in the start-stop process is reduced.

Description

Technical Field

[0001] The present application relates to the field of intelligent control technology, and in particular to a start-stop control method and related devices for a water electrolysis hydrogen production system. Background Art

[0002] A water electrolysis system, a device that uses electricity to split water into hydrogen and oxygen, is a key approach to achieving large-scale hydrogen production and sustainable utilization. Due to fluctuations in hydrogen demand, water electrolysis systems must adjust their output accordingly. For example, when chemical companies use less hydrogen at night, the system can be shut down or run at a reduced load. By controlling the start and stop of the water electrolysis system, hydrogen oversupply and shortages can be avoided, while also reducing hydrogen storage pressure and safety risks.

[0003] At present, the start-up and shutdown of hydrogen production systems by electrolysis of water are usually based on the start-up and shutdown procedures set by the operator's operating experience. The control quantity of the start-up and shutdown adjustments is determined only by the current operating status of the system, which makes the start-up and shutdown adjustments have a certain lag, resulting in overshoot or oscillation problems during the start-up and shutdown process, which has a significant negative impact on system performance, safety, equipment life and operational stability. Summary of the Invention

[0004] In view of the above problems, this application provides a start-stop control method and related devices for a water electrolysis hydrogen production system to achieve the purpose of reducing response delays during the start-stop process. The specific solution is as follows:

[0005] The first aspect of the present application provides a start-stop control method for a water electrolysis hydrogen production system, comprising:

[0006] In response to the 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 the target operating state;

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

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

[0009] When the initial operating parameters do not reach the operating parameters corresponding to the target operating state, obtaining a preset operating trajectory corresponding to the start-stop instruction, the preset operating trajectory being a trajectory of changes in the operating parameters of the water electrolysis hydrogen production system during a preset control process of starting or stopping the water electrolysis hydrogen production system to the corresponding target operating state;

[0010] Predicting operating parameters of the water electrolysis hydrogen production system in a preset time domain based on the initial operating parameters to obtain predicted operating parameters, wherein the preset time domain is a preset time period after the current moment;

[0011] Determining, from the preset operating trajectory, an operating parameter with the smallest error from the predicted operating parameter as a target start-stop control parameter;

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

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

[0014] Based on the preset operating trajectory, the minimum value of the preset function that meets the preset constraints is determined as the target start-stop control parameter. The preset function represents the difference relationship between the operating parameters in the preset operating trajectory and the predicted operating parameters. The preset constraints are the safety critical values ​​of each of the operating 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 to obtain the predicted operating parameters includes:

[0016] The initial operating parameters are input into a pre-trained dynamic model of a 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 to obtain predicted operating parameters. The dynamic model of the water electrolysis hydrogen production system is a model constructed based on a state equation for simulating the operating state of the water electrolysis hydrogen production system.

[0017] In a possible implementation, the method further includes:

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

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

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

[0021] Determining whether the start-stop instruction is a start instruction;

[0022] If the start-stop instruction is the start instruction, determining whether the water electrolysis hydrogen production system is in a ready-to-use state based on the initial operating parameters;

[0023] When the water electrolysis hydrogen production system is not in the standby state, controlling the water electrolysis hydrogen production system to reset its state until the water electrolysis hydrogen production system is in the standby state;

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

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

[0026] an instruction response unit, configured to respond to a received start / stop instruction of the water electrolysis hydrogen production system and 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 a target operating state;

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

[0028] A parameter acquisition unit, configured to acquire initial operating parameters representing a current operating state of the water electrolysis hydrogen production system;

[0029] a trajectory acquisition unit, configured to acquire, when the initial operating parameters do not reach the operating parameters corresponding to the target operating state, a preset operating trajectory corresponding to the start-stop instruction, wherein the preset operating trajectory is a trajectory of changes in the operating parameters of the electrolytic water hydrogen production system during a preset control process of starting or stopping the electrolytic water hydrogen production system to the corresponding target operating state;

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

[0031] a control parameter determination unit, configured to determine, from the preset operating trajectory, an operating parameter with the smallest error from the predicted operating parameter, as a target start-stop control parameter;

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

[0033] In a possible implementation, the control parameter determination unit includes:

[0034] A target parameter determination subunit is used to determine, based on the preset operating trajectory, a minimum value in a preset function that satisfies preset constraints as a target start-stop control parameter, wherein the preset function represents the difference relationship between the operating parameters in the preset operating trajectory and the predicted operating parameters, and the preset constraints are safety critical values ​​of each of the operating parameters.

[0035] The third aspect of the present application provides a computer program product, including computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements the start-stop control method of the water electrolysis hydrogen production system according to the first aspect or any implementation of the first aspect.

[0036] A fourth aspect of the present application provides an electronic device, comprising 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 according to the first aspect or any implementation method of the first aspect.

[0039] In a fifth aspect, 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 start-stop control method of the water electrolysis hydrogen production system according to the above-mentioned first aspect or any implementation method of the first aspect.

[0040] By means of the above technical solution, the start-stop control method of the electrolytic water hydrogen production system provided in the present application predicts the operating parameters in the future period of time based on the current initial operating parameters of the electrolytic water hydrogen production system during the start-stop process, and 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 in the start-stop process according to the target control parameters. After the control adjustment, if the electrolytic water hydrogen production system still does not reach the target operating state, the above steps are repeated so that the final start-stop control effect can achieve the effect of slow start-stop adjustment according to the pre-set start-stop trajectory. At the same time, by predicting the future operating state, the start-stop adjustment does not deviate from the operating trend of the electrolytic water hydrogen production system, and dynamic start-stop adjustment is performed in advance to reduce the response delay during the start-stop process. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 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.

[0042] Figure 1 A flow chart of a method for implementing a start-stop control method for a water electrolysis hydrogen production system provided in an embodiment of the present application;

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

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

[0045] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0046] 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.

[0047] 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.

[0048] 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.

[0049] In the prior art, the start-stop operation of the water electrolysis hydrogen production system relies on human experience, which has a certain hysteresis. This leads to overshoot or oscillation during the start-stop process, which has a significant negative impact on system performance, safety, equipment life, and operational stability. To solve the above technical problems, the embodiment of the present application provides a start-stop control method for the water electrolysis hydrogen production system. The start-stop control method of the water electrolysis hydrogen production system of the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0050] Reference Figure 1 , Figure 1 A flow chart of a method for controlling the start and stop of a water electrolysis hydrogen production system is provided in an embodiment of the present application, as shown in FIG. Figure 1 As shown, a start-stop control method for a water electrolysis hydrogen production system provided in an embodiment of the present application may include steps S110 to S160, and these steps are described in detail below.

[0051] Step S110, responding to the received start / stop instruction of the water electrolysis hydrogen production system.

[0052] It should be noted that the present application can be applied to, but is not limited to, applications with data processing functions and the ability to control water electrolysis hydrogen production systems or cloud services provided by cloud-side servers. Optionally, in an embodiment of the present application, the start-stop control method of the water electrolysis hydrogen production system can be applied to a controller that controls the water electrolysis hydrogen production system, and the operator can send a start instruction or a shutdown instruction to the controller through a mobile terminal that realizes wireless communication with the controller. Alternatively, the hydrogen production demand of the water electrolysis hydrogen production system is set in the controller in advance, and the controller decides whether to issue a start instruction or a shutdown instruction in real time based on the hydrogen production demand and the hydrogen production effect of the water electrolysis hydrogen production system.

[0053] It is understandable that before starting the system, it is necessary to first determine whether the electrolyzer and other equipment in the system are in a standby state and whether there are no abnormalities, so as to improve the safety of the startup operation. Based on this, in a possible implementation, after receiving the start-stop instruction for the electrolysis water hydrogen production system, it also includes: judging whether the start-stop instruction is a start instruction; if the start-stop instruction is a start instruction, then judging whether the electrolysis water hydrogen production system is in a standby state based on the initial operating parameters; if the electrolysis water hydrogen production system is not in a standby state, controlling the electrolysis water hydrogen production system to reset the state until the electrolysis water hydrogen production system is in a standby state; if the electrolysis water hydrogen production system is not in a standby state, executing the acquisition of the initial operating parameters characterizing the current operating state of the electrolysis water hydrogen production system, and the preset operating trajectory corresponding to the start-stop instruction and subsequent steps.

[0054] A threshold range corresponding to each operating parameter can be pre-set. Based on the threshold range, it is determined whether the currently collected operating parameters are within the corresponding threshold range. 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. If at least one of the operating parameters is not within the threshold range, then the water electrolysis hydrogen production system is abnormal and cannot be started normally. Therefore, the controller may not respond to the startup command received this time.

[0055] It is understood that the operating parameters may also include the assembly status of the hardware equipment of the water electrolysis hydrogen production system, for example, whether the water supply and power supply are normal, and whether the open and close status of the pipeline valves are normal. If the system is in an abnormal state, the valves or other hardware can be controlled to reset to a normal state. If the hardware equipment cannot be controlled, a reset instruction can be sent to the operator to remind the operator to reset the system. After the system is reset, the operator can respond to the above-mentioned start instruction and execute steps S120-S170.

[0056] Step S120, obtaining initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, and a preset operating trajectory corresponding to the start-stop instruction. The preset operating trajectory is the trajectory of changes in the operating parameters of the water electrolysis hydrogen production system during the operation process of pre-set control to start or stop the water electrolysis hydrogen production system to the corresponding target operating state.

[0057] After receiving the start / stop command, the current operating parameters of the electrolytic water hydrogen production system are obtained. Optionally, various sensors provided in the electrolytic water hydrogen production system are used to collect the operating parameters of the electrolytic water hydrogen production system, such as current i, temperature T, pressure P, electrolysis voltage V, hydrogen generation rate y, oxygen concentration A1 in hydrogen, and hydrogen concentration A2 in oxygen.

[0058] At the same time, in the process of obtaining the pre-configured start or stop of the electrolysis water hydrogen production system, the various operating parameters of the electrolysis water hydrogen production system, it is understandable that, assuming that before the electrolysis water hydrogen production system is started, the current i of the system is 0, and the current i of the electrolysis water hydrogen production system after startup is 10, if the current of the electrolysis water hydrogen production system is suddenly increased to 10, it will cause an impact on the various equipment in the system, affecting the hydrogen production effect after the electrolysis water hydrogen production system is started, and will also have an adverse effect on the life of the equipment in the system. Similarly, in the process of stopping operation, the sudden drop of various parameters in the system will also have an adverse effect on the system. Therefore, the embodiment of the present application pre-sets the target operation trajectory corresponding to the start instruction or the stop instruction respectively, and the target operation trajectory is that the electrolysis water hydrogen production system is ramped, so that the operating state of the electrolysis water hydrogen production system gradually reaches the target operating state, avoiding the influence of the sudden rise or drop of various operating parameters on the system.

[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 so, terminate the start-stop 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 is started or stopped. It is 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 current water electrolysis hydrogen production system has completed starting or stopping, and the control of the water electrolysis hydrogen production system can be terminated. On the contrary, if they are inconsistent, it proves that the current water electrolysis hydrogen production system has not completed starting or stopping, and the following steps S130-S160 are continued until the state of the water electrolysis hydrogen production system reaches the target operating state.

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

[0062] Optionally, a state prediction model of the water electrolysis hydrogen production system is constructed and trained based on machine learning, deep learning, integrated learning and other technologies. The initial operating parameters are input into the trained state prediction model so that the state prediction model predicts the operating parameters of the water electrolysis hydrogen production system in the future. Optionally, the future period of time, i.e., the preset time domain is a preset time period after the current moment, and can be selected to be less than or equal to the maximum duration of the complete start-up or stop of the water electrolysis hydrogen production system operation process. For example, if it takes 30 seconds to start the water electrolysis hydrogen production system, then the preset time domain is less than or equal to 30 seconds.

[0063] In another possible implementation, the implementation method of step S140 may include: inputting the 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, 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 for simulating 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 nuclear analysis water electrolysis hydrogen production process under different operating conditions. In the embodiment of the present application, the dynamic model of the water electrolysis hydrogen production system is constructed in the form of a state equation. The specific state equation can be referred to the following formula (1).

[0065]

[0066] (1)

[0067] Where x is the state vector input to the dynamic model of the water electrolysis hydrogen production system, including the initial operating parameters, ; u is the input variable of the water electrolysis hydrogen production system, 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 predicted operating parameter x of the preset time domain obtained based on the current time k is determined. k+1|k , .

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

[0070] Reference Figure 2An embodiment of the present 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 by a prediction model, i.e., a dynamic model of the water electrolysis hydrogen production system, is input into a feedback correction module. The model parameters of the prediction model are then optimized through rolling optimization. Optionally, a Kalman filter (KF) or moving average method is used to update the parameters of the prediction model and correct the prediction for the next prediction period or a preset time domain. By dynamically adjusting the prediction model, the accuracy of the predicted operating parameters is improved.

[0071] Step S150 , determining the operating parameter with the smallest error from the predicted operating parameter from the preset operating trajectory as the target start-stop control parameter.

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

[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 the start-stop operation is adjusted, and the determined start-stop control parameter will no longer be applicable to the current operating state, resulting in a certain lag in the start-stop operation. Therefore, the start-stop control parameter is determined based on the predicted operating parameters that represent the future operating trend of the water electrolysis hydrogen production system, and is applicable to the future operating state of the system.

[0074] In addition, in order to ensure that the start-stop operation does not deviate from the preset operating trajectory, the embodiment of the present application avoids inaccuracies in the predicted operating parameters, which may lead to parameter mutations in the adjusted water electrolysis hydrogen production system and affect the normal operation of the system. Therefore, the embodiment of the present application determines the operating parameters closest to the predicted operating parameters from the preset operating trajectory as the target start-stop control parameters, so that the final target operating parameters neither deviate from the operating trend of the water electrolysis hydrogen production system nor deviate from the preset operating trajectory, so that the water electrolysis hydrogen production system can smoothly transition from multiple states during the start-stop process, solving the impact problem of step start-stop.

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

[0076] Optionally, based on the predicted operating parameters, the error between the predicted operating parameters and the target trajectory is minimized in the control time domain. Refer to the following formula (2) and use the quadratic programming or mixed integer programming algorithm to solve the control sequence that minimizes the objective function J. Among them, the control time domain is to optimize the control sequence length, optional, N c Less than or equal to N p .

[0077] (2)

[0078] in, Penalty coefficient for controlling input changes (avoiding current abrupt changes, protecting power supply and electrodes); is the penalty coefficient for energy consumption change; is the penalty coefficient of temperature change rate. Δu is the predicted operating parameter u k The difference between the running parameters in the target running trajectory, i k 、V k 、T k are the current value, voltage value and temperature at time k respectively. Based on the objective function, the operating parameters in the target operating trajectory that minimizes the objective function J are determined.

[0079] It can be understood that the objective function is a multi-objective optimization function with the shortest start-stop time + the lowest energy consumption + the smallest equipment loss. Among them, the penalty term in the objective function J and the penalty term coefficient are 、 、 This is used to adjust the weight of the "penalty term" in the constraint objective function, thereby optimizing the final value of the objective function. Specifically, the product of the penalty term coefficient and the state parameter represents the "penalty" for deviations from the expected value of the state parameter. It can be understood that when the state parameter deviates from the expected value, the product term increases the value of the objective function, thereby "penalizing" the objective function in the process of finding the minimum value.

[0080] Among them, the state parameter value is the key variable that needs to be optimized. Specifically, for the energy consumption change penalty coefficient The corresponding product term " ", where the product of current i and voltage V reflects the energy consumption of electrochemical reaction, therefore, the product term in the objective function J is " ” is used to regulate and constrain the energy consumption of the water electrolysis hydrogen production system. Similarly, the temperature change rate penalty 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 is It is used to prevent the electrolysis water hydrogen production system from causing thermal stress in materials due to rapid temperature changes, resulting in equipment loss.

[0081] The present application embodiment takes into account that the water electrolysis hydrogen production system has certain safety constraints, for example, the current range , voltage range , pressure constraint , temperature constraint , 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, when solving the control sequence that minimizes the objective function J, the embodiment of the present application uses the above safety constraints as constraints to solve the problem, so that the obtained control sequence satisfies the safety constraints and does not deviate from the preset running trajectory. After solving the control sequence, only the first control variable , as the target start-stop control parameters, and use the target start-stop control parameters to control and adjust the operating state of the water electrolysis hydrogen production system.

[0083] By means of the above technical solution, the start-stop control method of the electrolytic water hydrogen production system provided in the present application predicts the operating parameters in the future period of time based on the current initial operating parameters of the electrolytic water hydrogen production system during the start-stop process, and 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 in the start-stop process according to the target control parameters. After the control adjustment, if the electrolytic water hydrogen production system still does not reach the target operating state, the above steps are repeated so that the final start-stop control effect can achieve the effect of slow start-stop adjustment according to the pre-set start-stop trajectory, realize the smooth transition of multiple states of the electrolytic water hydrogen production system during the start-stop process, and solve the impact problem of step start-stop. At the same time, by predicting the future operating state, the start-stop adjustment does not deviate from the operating trend of the electrolytic water hydrogen production system, and dynamic start-stop adjustment is performed in advance to reduce the response delay during the start-stop process.

[0084] The above describes a start-stop control method for a water electrolysis hydrogen production system provided in an embodiment of the present application. The following describes a device for executing the above-mentioned start-stop control method for a water electrolysis hydrogen production system.

[0085] See also Figure 3 , Figure 3 This is a schematic diagram of the structure of a start-stop control device for a water electrolysis hydrogen production system provided in an embodiment of the present application. Figure 3 As shown, the start-stop control device of 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 and 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] a parameter acquisition unit, configured to acquire initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system, and a preset operating trajectory corresponding to the start / stop instruction, wherein the preset operating trajectory is a trajectory of changes in the operating parameters of the water electrolysis hydrogen production system during a preset control process of starting or stopping the water electrolysis hydrogen production system to the corresponding target operating state;

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

[0090] a control parameter determination unit, configured to determine, from the preset operating trajectory, an operating parameter with the smallest error from the predicted operating parameter, as a target start-stop control parameter;

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

[0092] In a possible implementation, the control parameter determination unit includes:

[0093] A target parameter determination subunit is used to determine, based on the preset operating trajectory, a minimum value in a preset function that satisfies preset constraints as a target start-stop control parameter, wherein the preset function represents the difference relationship between the operating parameters in the preset operating trajectory and the predicted operating parameters, and the preset constraints are safety critical values ​​of each of the operating parameters.

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

[0095] The model prediction subunit is used to input the 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 to obtain predicted operating parameters. The dynamic model of the water electrolysis hydrogen production system is a model constructed based on the state equation for simulating the operating state of the water electrolysis hydrogen production system.

[0096] In a possible implementation, the method further includes:

[0097] An actual parameter acquisition subunit, configured to acquire actual operating parameters of the water electrolysis hydrogen production system in the preset time domain;

[0098] The model updating 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] In a possible implementation, the method further includes:

[0100] An instruction judging unit, configured to judge whether the start / stop instruction received for the water electrolysis hydrogen production system is a start instruction after the instruction responding unit 1100 executes the start / stop instruction received;

[0101] a state judgment unit, configured to judge 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 resetting unit, configured to control the water electrolysis hydrogen production system to reset its state when the state judgment unit determines that the state is no, until the water 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 and the preset operating trajectory corresponding to the start-stop instruction and subsequent steps when the state judgment unit is yes.

[0104] An electronic device is also provided in an embodiment of the present application. Figure 4 , 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 4 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.

[0105] like Figure 4 As shown, the electronic device may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes based on programs stored in a read-only memory (ROM) 602 or programs 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 device 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 may be connected to the I / O interface 605: an input device 606 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 607 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 608 including, for example, a memory card, a hard disk, etc.; and a communication device 609. The communication device 609 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Figure 4 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.

[0107] 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 start-stop control methods for the water electrolysis hydrogen production system provided in the embodiment of the present application.

[0108] 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 start-stop control method of the water electrolysis hydrogen production system provided in the embodiment of the present application.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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 (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website, a computer, a training device or a 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, etc. that includes one or more available media integrations. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

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 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 the target operating state; The start-stop control operation process includes: Obtaining initial operating parameters characterizing the current operating state of the water electrolysis hydrogen production system and a preset operating trajectory corresponding to the start / stop instruction, wherein the preset operating trajectory is a trajectory of changes in the operating parameters of the water electrolysis hydrogen production system during a preset control process of starting or stopping the water electrolysis hydrogen production system to the corresponding target operating state; When the initial operating parameters do not reach the operating parameters corresponding to the target operating state, predicting the operating parameters of the water electrolysis hydrogen production system in a preset time domain based on the initial operating parameters to obtain predicted operating parameters, where the preset time domain is a preset time period after the current moment; Determining, from the preset operating trajectory, an operating parameter with the smallest error from the predicted operating parameter as a target start-stop control parameter; Based on the target start-stop control parameters, the operating state of the water electrolysis hydrogen production system is controlled and adjusted.

2. The start-stop control method of the water electrolysis hydrogen production system according to claim 1, characterized in that: The step of determining, from the preset operating trajectory, an operating parameter with the smallest error from the predicted operating parameter as a target start-stop control parameter includes: Based on the preset operating trajectory, the minimum value of the preset function that meets the preset constraints is determined as the target start-stop control parameter. The preset function represents the difference relationship between the operating parameters in the preset operating trajectory and the predicted operating parameters. The preset constraints are the safety critical values ​​of each of the operating parameters.

3. The start-stop control method of 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 to obtain the predicted operating parameters includes: The initial operating parameters are input into a pre-trained dynamic model of a 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 to obtain predicted operating parameters. The dynamic model of the water electrolysis hydrogen production system is a model constructed based on a state equation for simulating the operating state of the water electrolysis hydrogen production system.

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

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

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

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

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

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 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 according to any one of claims 1 to 5.

10. A computer storage medium, characterized in that 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 the start-stop control method of the water electrolysis hydrogen production system as described in any one of claims 1 to 5.

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