Valve quick start and stop control method and device, electronic equipment and storage medium

Abstract

The invention discloses a quick start-stop control method and device for a valve, electronic equipment and a storage medium, and the method and device are applied to the electronic equipment and are used for performing quick start-stop control on the valve of a conventional reheating adjusting system in a nuclear power station, and particularly, the quick start-stop control method and device are used for responding to a quick start-stop instruction of a user. Obtaining the working state information of the valve and the load change trend of the power grid in a period of time in the future; the working state information, the load change trend and the hard constraint condition of the valve are processed based on an MPC algorithm, and an optimal control signal at the next moment is obtained; and the optimal control signal is output to a valve executing mechanism of the valve, so that the valve executing mechanism controls the valve based on the optimal control signal. According to the scheme, by dynamically adjusting the start-stop speed and the acceleration of the valve, sudden changes of the speed and the acceleration in a traditional start-stop mode are avoided, mechanical impact, vibration and noise are effectively reduced, mechanical abrasion to the valve and a pipeline is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The present application relates to the field of automatic control technology, and more specifically, to a valve rapid start-stop control method, device, electronic device and storage medium. Background Art

[0002] Traditional nuclear power plants are primarily designed for baseload operation, meaning that nuclear power units operate at a relatively stable output level. However, with the growing proportion of renewable energy, grid load fluctuations are increasing, and the power system's demand for rapid load regulation is becoming increasingly prominent. This requires nuclear power units to be able to rapidly increase or decrease load in a short period of time to achieve rapid peak load regulation. The valves of nuclear power units play a crucial role in this rapid peak load regulation process. In particular, the start and stop speed and accuracy of the valves in the reheat control system of the conventional island of a nuclear power plant directly affect the system's peak load regulation capability, thereby determining whether the nuclear power unit can meet the requirements of rapid load regulation.

[0003] However, traditional valve control methods usually adopt standard start-stop modes or simple PID control strategies. When nuclear power plants perform rapid peak regulation, the acceleration of the valves changes greatly during rapid start-stop control, which can easily cause vibration, noise and mechanical shock, leading to increased mechanical wear of valves and pipelines, thereby shortening the service life of the equipment. Summary of the Invention

[0004] In view of this, the present application provides a valve rapid start and stop control method, device, electronic equipment and storage medium for rapid start and stop control of the valves of the reheat regulation system of the conventional island in a nuclear power plant, so as to reduce the mechanical impact caused by the traditional valve control method during rapid peak regulation of the nuclear power plant, thereby reducing the mechanical wear on the valves and pipelines.

[0005] In order to achieve the above objectives, the following solutions are proposed:

[0006] A valve rapid start-stop control method is applied to electronic equipment and is used to quickly start and stop valves in a reheat regulation system commonly found in nuclear power plants. The valve rapid start-stop control method comprises the following steps:

[0007] Responding to the user's quick start and stop instructions, obtaining the working status information of the valve and the load change trend of the power grid in the future;

[0008] Processing the working state information, the load change trend, and the hard constraints of the valve based on an MPC algorithm to obtain an optimal control signal at the next moment;

[0009] The optimal control signal is output to a valve actuator of the valve, so that the valve actuator controls the valve based on the optimal control signal.

[0010] Optionally, obtaining the working status information of the valve and the load change trend of the power grid in the future period includes the steps of:

[0011] Acquiring the working status information based on a plurality of sensors of the valve;

[0012] Model prediction is performed based on the real-time load data and historical load data of the power grid to obtain the load change trend.

[0013] Optionally, the following steps are also included:

[0014] Determining whether the working status information is valid, and if so, executing the step of calculating the optimal control signal based on the MPC algorithm;

[0015] If the working status information is invalid, the optimal control signal is adjusted.

[0016] Optionally, the following steps are also included:

[0017] Monitor the actual state of the valve in real time to determine whether the valve has reached the target opening;

[0018] If the valve does not reach the target opening, fault diagnosis is performed, and redundant system switching and preset emergency processing procedures are executed according to the diagnosed fault information.

[0019] Optionally, the following steps are also included:

[0020] Record all or part of the data during the operation and generate an operation report.

[0021] A valve rapid start-stop control device is applied to electronic equipment and is used to quickly start and stop valves of a reheat regulation system commonly found in nuclear power plants. The valve rapid start-stop control device comprises:

[0022] a data acquisition module configured to respond to a user's quick start / stop command and acquire the operating status information of the valve and a load change trend of the power grid in the future;

[0023] a model prediction module configured to process the working state information, the load change trend, and the hard constraints of the valve based on an MPC algorithm to obtain an optimal control signal at the next moment;

[0024] The control execution module is configured to output the optimal control signal to the valve actuator of the valve, so that the valve actuator controls the valve based on the optimal control signal.

[0025] Optionally, the data acquisition module includes:

[0026] a state monitoring unit configured to obtain the working state information based on a plurality of sensors of the valve;

[0027] The load prediction unit is configured to perform model prediction based on the real-time load data and historical load data of the power grid to obtain the load change trend.

[0028] Optionally, also include:

[0029] a validity judgment module, configured to judge whether the working state information is valid, and if so, to execute the step of calculating the optimal control signal based on the MPC algorithm;

[0030] The signal adjustment module is configured to adjust the optimal control signal if the working status information is invalid.

[0031] Optionally, also include:

[0032] A real-time monitoring module is configured to monitor the actual state of the valve in real time to determine whether the valve reaches a target opening;

[0033] The fault diagnosis module is configured to perform fault diagnosis if the valve does not reach the target opening, and execute redundant system switching and preset emergency processing procedures according to the diagnosed fault information.

[0034] Optionally, also include:

[0035] The data recording module is configured to record all or part of the data during the operation and generate an operation report.

[0036] 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 or instructions;

[0038] The processor is used to execute the computer program or instruction to enable the electronic device to implement the valve rapid start and stop control method as described above.

[0039] A computer-readable storage medium is applied to an electronic device, wherein the storage medium carries one or more computer programs, and the one or more computer programs can be executed by the electronic device, thereby enabling the electronic device to implement the valve rapid start and stop control method as described above.

[0040] As can be seen from the above technical solutions, the present application discloses a method, device, electronic device, and storage medium for rapid valve start-stop control. This method and device are applied to electronic devices and are used to perform rapid start-stop control on valves in reheat control systems commonly found in nuclear power plants. Specifically, the method responds to the user's rapid start-stop instructions, obtains the valve's operating status information and the load change trend of the power grid over a period of time in the future; processes the operating status information, load change trend, and the valve's hard constraints based on the MPC algorithm to obtain the optimal control signal for the next moment; and outputs the optimal control signal to the valve actuator of the valve so that the valve actuator controls the valve based on the optimal control signal. This solution avoids the sudden changes in speed and acceleration under traditional start-stop methods by dynamically adjusting the valve's start-stop speed and acceleration, effectively reducing mechanical shock, vibration, and noise, reducing mechanical wear on valves and pipelines, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0042] Figure 1 This is a flow chart of a valve rapid start-stop control method according to an embodiment of the present application.

[0043] Figure 2 This is a flow chart of another valve rapid start and stop control method according to an embodiment of the present application;

[0044] Figure 3 This is a flow chart of another valve rapid start-stop control method according to an embodiment of the present application;

[0045] Figure 4 This is a flow chart of another valve rapid start-stop control method according to an embodiment of the present application;

[0046] Figure 5 This is a block diagram of a valve rapid start-stop control device according to an embodiment of the present application.

[0047] Figure 6 This is a block diagram of another valve rapid start-stop control device according to an embodiment of the present application;

[0048] Figure 7 This is a block diagram of another valve rapid start-stop control device according to an embodiment of the present application;

[0049] Figure 8 This is a block diagram of another valve rapid start-stop control device according to an embodiment of the present application;

[0050] Figure 9 This is a block diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0052] The MPC (Model Predictive Control) algorithm is an optimization control method based on mathematical models. It predicts the future dynamic behavior of the system and optimizes the control input in real time to achieve optimal control results. It is a closed-loop control strategy that can be dynamically adjusted based on real-time data to ensure stable and efficient system operation. During rapid startup and shutdown, it optimizes the valve opening change curve, reduces system vibration and noise, and improves startup and shutdown efficiency. It meets the needs of rapid peak regulation in nuclear power plants and ensures smooth and accurate startup and shutdown processes, avoiding overshoot or hysteresis effects.

[0053] Core principles:

[0054] Establishing a mathematical model of the system: MPC is based on the mathematical model of the controlled object (such as a valve) to predict the system response in multiple time steps in the future.

[0055] Rolling optimization: At each control moment, MPC calculates the optimal control strategy for a period of time in the future (forecast horizon) and only executes the optimal control amount at the current moment.

[0056] Real-time feedback correction: In each control cycle, MPC updates the prediction model based on real-time sensor data to ensure that the system operates along the optimal trajectory.

[0057] In normal start-stop operations, the PID algorithm is used to stably control the start-stop process of the valve to ensure accurate control of parameters such as opening and speed.

[0058] Suitable for scenarios that do not require high response speed but high stability.

[0059] Comparison and applicable scenarios of MPC algorithm and PID algorithm:

[0060]

[0061]

[0062] Since traditional start-stop control methods cannot meet the demand for rapid start-stop control of valves, resulting in the inability of nuclear power plants to meet the demand for rapid peak regulation of the power grid, the following specific technical solutions are proposed to achieve mechanical impact during the rapid start-stop control of valves, thereby reducing mechanical wear on valves and pipelines. The specific solutions are as follows:

[0063] Figure 1 This is a flow chart of a valve rapid start and stop control method according to an embodiment of the present application.

[0064] like Figure 1 As shown, the valve rapid start-stop control method provided in this embodiment is applied to electronic equipment for start-stop control of valves in a reheat regulation system of a nuclear power plant. The electronic equipment here can be a computer, controller, embedded device, etc. for controlling the entire or partial nuclear power plant. The valve rapid start-stop control method specifically includes the following steps:

[0065] S1. Obtain the working status information of the valve and the load change trend of the power grid in the future according to the fast start-stop control instructions.

[0066] The rapid start-stop control commands here originate from the nuclear power plant's central control system for peak-shaving control, or from emergency stop control requests directly input by control personnel. Generally speaking, the start-stop commands input by the central control system or control personnel will include rapid start-stop commands and standard start-stop commands. If the start-stop command is a standard start-stop command, the system will enter the standard start-stop path and implement standard start-stop control for the corresponding valve. During standard start-stop control, the system uses a traditional PID control algorithm to execute valve operations according to fixed control parameters. This type of control is suitable for scenarios where rapid response is not required, providing a more conservative but stable control effect.

[0067] If the start / stop instruction is a fast start / stop instruction, then based on the collection of real-time data or information of the instruction, the information collected in this application includes but is not limited to the working status information of the valve and the load change trend of the power grid in the future.

[0068] Regarding operating status information, sensors installed on the valve or pipeline collect valve-related information. Specifically, this application collects operating status information throughout the entire valve operation process, including not only at the initial stage of implementing the method, but also during and at the end of the process. This operating status information includes, but is not limited to, the current valve opening, as well as important parameters such as the pressure, temperature, and flow rate of the fluid flowing through the valve.

[0069] The load change trend is a relatively important core link in this application. Specifically, its function is to monitor and analyze the power grid load data in real time, combine historical data and model predictions, and predict the load change trend in a certain period of time in the future. By accurately predicting the load fluctuations in the future, the valve control system can make adjustments in advance to avoid valve response lag or over-adjustment, and ensure that the nuclear power unit can adapt to the power grid load changes in a timely manner. This application uses time series analysis, machine learning algorithms or physical modeling methods to perform calculations based on the real-time load data and historical load data of the power grid, so as to derive the future change trend of the power grid load and obtain the load change trend within a certain time window.

[0070] S3. Based on the MPC algorithm, the working status information, load change trend and hard constraints are processed to obtain the optimal control signal at the next moment.

[0071] The optimal control signal includes optimal control variables such as valve opening, start / stop speed, and acceleration. This application processes operating status information and load change trends based on the MPC algorithm, and references the valve's hard constraints to predict the valve's future behavior and optimize control inputs in advance, ensuring the valve can respond quickly and smoothly to load changes during the start / stop process. The valve's hard constraints include the valve's maximum opening, minimum opening, and start / stop acceleration.

[0072] This application adds hard constraints to ensure that the system's required parameters, such as valve opening, start / stop speed, and acceleration, are limited by physical conditions and safety constraints, ensuring that all control signals comply with these constraints. This prevents exceeding the valve's physical limits or violating safety regulations, preventing copper failure or equipment damage, and ensuring that all control signals remain within a reasonable range during the start / stop control process.

[0073] S5. Output the optimal control signal to the valve actuator.

[0074] A valve actuator is an electromechanical device that controls the movement of a valve, such as a control unit's drive motor and reduction mechanism. It operates based on corresponding control instructions or signals to drive the valve to rotate or flip, thereby opening and closing the valve. The optimal control instructions in this application specify the opening, start / stop speed, and acceleration of the movement, so that the valve actuator controls the valve according to the aforementioned opening, start / stop speed, and acceleration, enabling rapid opening and closing of the valve.

[0075] As can be seen from the above technical solution, this embodiment provides a method for rapid valve start-stop control, which is applied to electronic equipment and is used to quickly start and stop valves in reheat control systems commonly found in nuclear power plants. Specifically, the method responds to the user's rapid start-stop instructions, obtains the valve's operating status information and the load change trend of the power grid in the future; processes the operating status information, load change trend, and hard constraints of the valve based on the MPC algorithm to obtain the optimal control signal at the next moment; and outputs the optimal control signal to the valve actuator of the valve so that the valve actuator controls the valve based on the optimal control signal. This solution avoids the sudden changes in speed and acceleration under traditional start-stop methods by dynamically adjusting the start-stop speed and acceleration of the valve, effectively reducing mechanical shock, vibration, and noise, reducing mechanical wear on valves and pipelines, and extending the service life of the equipment.

[0076] Moreover, this patent application adopts a predictive control algorithm (MPC), which can automatically adjust the speed, acceleration and other parameters of the start-stop process according to the real-time operating conditions of the nuclear power system, ensuring that the valve can be started and stopped smoothly in a short time, thereby greatly shortening the response time and improving the overall efficiency and sensitivity of the system.

[0077] In addition, in a specific embodiment of the present application, the following steps are also included: Figure 2 shown.

[0078] S2. Determine whether the working status information is valid.

[0079] Specifically, during the process of outputting the optimal control signal to the valve actuator and controlling the valve, the validity of the newly acquired operating status information is determined. Validity here means that each data point in the operating status information is within a reasonable range. If the operating status information is valid, the subsequent process of obtaining the optimal control signal based on the MPC algorithm is executed.

[0080] S4. Adjust the optimal control signal.

[0081] That is, when it is determined that the working state information is invalid, the optimal control signal obtained above is adjusted, that is, the valve opening, start and stop speed, and acceleration are adjusted. The adjusted optimal control signal is then output to the valve value actuator to achieve better control of the valve.

[0082] This application provides feedback based on the effectiveness of key parameters such as valve opening, flow rate, and pressure, and instantly adjusts control signals based on this feedback, ensuring smooth and precise valve startup and shutdown. This prevents valve vibration or system instability caused by varying operating conditions. Furthermore, through real-time monitoring and adjustment, it effectively improves the safety and reliability of nuclear power plants and ensures the smooth operation of the reheat control system during load fluctuations.

[0083] In another specific embodiment of the present application, the present application further includes the following steps: Figure 3 shown.

[0084] S6. Monitor the actual status of the valve in real time.

[0085] Through real-time monitoring, the actual state of the valve, that is, the real-time opening of the valve, is obtained, and whether the real-time opening is consistent with the opening specified by the above-mentioned optimal control instruction is consistent. If it is consistent, no operation is performed; if it is not consistent, subsequent operations are performed.

[0086] S7. Perform fault diagnosis on the valve.

[0087] That is, when the real-time opening of the valve does not meet the requirements, a fault diagnosis is performed on the valve. If the diagnosed fault information indicates that the valve is faulty, a redundant system switch is executed, or the preset emergency handling procedure is executed.

[0088] Through these operations, valve status can be monitored in real time and fault analysis can be performed. If a valve becomes stuck or responds slowly, the system automatically switches to a redundant control system or backup actuator, preventing the fault from affecting the normal operation of the nuclear power plant. This mechanism greatly improves the reliability and safety of the system.

[0089] Through the above-mentioned emergency treatment, it is possible to quickly enter emergency mode when encountering valve abnormalities or system failures, and promptly notify operators through the alarm system, ensuring that the nuclear power plant can respond quickly and take corresponding measures to avoid potential safety risks.

[0090] Furthermore, this application also provides the following specific implementation methods, such as Figure 4 As shown, in the following specific implementation, the following steps are further included based on the above operations:

[0091] S8. Record data during the operation.

[0092] During these operations, all data, including but not limited to operating status information, load trends, and valve operation and status parameters, is recorded, and an operation report is generated based on the records. By archiving the relevant data for management, subsequent tracking and optimization of nuclear power plant operations can be achieved.

[0093] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment, or a part of code, and the module, program segment, or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of the boxes in the block diagram and / or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0094] Although the operations are depicted in a particular order, this should not be understood as requiring that the operations be performed in the particular order shown or in a sequential order.Multitasking and parallel processing may be advantageous under certain circumstances.

[0095] It should be understood that the various steps described in the method embodiments of the present disclosure may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0096] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages, or a combination thereof, including, but not limited to, object-oriented programming languages such as Java, Smalltalk, C++, and conventional procedural programming languages such as C or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer.

[0097] Figure 5 This is a block diagram of a valve rapid start and stop control device according to an embodiment of the present application.

[0098] like Figure 5As shown, the rapid valve start-stop control device provided in this embodiment is applied to electronic equipment for starting and stopping valves in a reheat regulation system of a nuclear power plant. The electronic equipment here can be a computer, controller, embedded device, etc. for controlling the entire or a portion of the nuclear power plant. The rapid valve start-stop control device specifically includes a data acquisition module 10, a model prediction module 30, and a control execution module 50.

[0099] The data acquisition module is used to obtain the working status information of the valve and the load change trend of the power grid in the future according to the fast start and stop control instructions.

[0100] The rapid start-stop control commands here originate from the nuclear power plant's central control system for peak-shaving control, or from emergency stop control requests directly input by control personnel. Generally speaking, the start-stop commands input by the central control system or control personnel will include rapid start-stop commands and standard start-stop commands. If the start-stop command is a standard start-stop command, the system will enter the standard start-stop path and implement standard start-stop control for the corresponding valve. During standard start-stop control, the system uses a traditional PID control algorithm to execute valve operations according to fixed control parameters. This type of control is suitable for scenarios where rapid response is not required, providing a more conservative but stable control effect.

[0101] If the start / stop command is a rapid start / stop command, real-time data or information is collected based on the command. The information collected in this application includes but is not limited to the operating status of the valve and the load change trend of the power grid over a period of time. This module specifically includes a status monitoring unit and a load forecasting unit.

[0102] The condition monitoring unit is used to collect operating status information. Specifically, it uses sensors installed on the valve or pipeline to collect valve-related information. Specifically, in terms of the timing of collection, the present application collects operating status information throughout the entire valve operation process, including not only at the initial stage of implementation of the method, but also during and at the end of the implementation of the method. This operating status information includes, but is not limited to, the current valve opening, as well as important parameters such as the pressure, temperature, and flow rate of the fluid flowing through the valve.

[0103] The load change trend is a relatively important core link in this application. The load forecasting unit is used to monitor and analyze the power grid load data in real time, combine historical data and model predictions, and predict the load change trend in a certain period of time in the future, thereby obtaining the load change trend. By accurately predicting the load fluctuations in the future, the valve control system can make adjustments in advance to avoid valve response lag or over-adjustment, and ensure that the nuclear power unit can adapt to the power grid load changes in a timely manner. This application uses time series analysis, machine learning algorithms or physical modeling methods to perform calculations based on the real-time load data and historical load data of the power grid, thereby deriving the future change trend of the power grid load and the load change trend within a certain time window.

[0104] The model prediction module is used to process the working status information, load change trend and hard constraints based on the MPC algorithm to obtain the optimal control signal at the next moment.

[0105] The optimal control signal includes optimal control variables such as valve opening, start / stop speed, and acceleration. This application processes operating status information and load change trends based on the MPC algorithm, and references the valve's hard constraints to predict the valve's future behavior and optimize control inputs in advance, ensuring the valve can respond quickly and smoothly to load changes during the start / stop process. The valve's hard constraints include the valve's maximum opening, minimum opening, and start / stop acceleration.

[0106] This application adds hard constraints to ensure that the system's required parameters, such as valve opening, start / stop speed, and acceleration, are limited by physical conditions and safety constraints, ensuring that all control signals comply with these constraints. This prevents exceeding the valve's physical limits or violating safety regulations, preventing copper failure or equipment damage, and ensuring that all control signals remain within a reasonable range during the start / stop control process.

[0107] The control execution module is used to output the optimal control signal to the valve actuator.

[0108] A valve actuator is an electromechanical device that controls the movement of a valve, such as a control unit's drive motor and reduction mechanism. It operates based on corresponding control instructions or signals to drive the valve to rotate or flip, thereby opening and closing the valve. The optimal control instructions in this application specify the opening, start / stop speed, and acceleration of the movement, so that the valve actuator controls the valve according to the aforementioned opening, start / stop speed, and acceleration, enabling rapid opening and closing of the valve.

[0109] As can be seen from the above technical solution, this embodiment provides a valve rapid start-stop control device, which is applied to electronic equipment and is used to quickly start and stop valves in the reheat control system commonly found in nuclear power plants. Specifically, it responds to the user's rapid start-stop instructions, obtains the valve's operating status information and the load change trend of the power grid in the future; processes the operating status information, load change trend, and the hard constraints of the valve based on the MPC algorithm to obtain the optimal control signal at the next moment; and outputs the optimal control signal to the valve actuator of the valve so that the valve actuator controls the valve based on the optimal control signal. This solution avoids the sudden changes in speed and acceleration under traditional start-stop methods by dynamically adjusting the start-stop speed and acceleration of the valve, effectively reducing mechanical shock, vibration, and noise, reducing mechanical wear on valves and pipelines, and extending the service life of the equipment.

[0110] Moreover, this patent application adopts a predictive control algorithm (MPC), which can automatically adjust the speed, acceleration and other parameters of the start-stop process according to the real-time operating conditions of the nuclear power system, ensuring that the valve can be started and stopped smoothly in a short time, thereby greatly shortening the response time and improving the overall efficiency and sensitivity of the system.

[0111] In addition, in a specific embodiment of the present application, a validity judgment module 20 and a signal adjustment module 40 are also included. Figure 6 shown.

[0112] The validity judgment module is used to judge whether the working status information is valid.

[0113] Specifically, during the process of outputting the optimal control signal to the valve actuator and controlling the valve, the validity of the newly acquired operating status information is determined. Validity here means that each data point in the operating status information is within a reasonable range. If the operating status information is valid, the subsequent process of obtaining the optimal control signal based on the MPC algorithm is executed.

[0114] The signal adjustment module is used to adjust the optimal control signal.

[0115] That is, when it is determined that the working state information is invalid, the optimal control signal obtained above is adjusted, that is, the valve opening, start and stop speed, and acceleration are adjusted. The adjusted optimal control signal is then output to the valve value actuator to achieve better control of the valve.

[0116] This application provides feedback based on the effectiveness of key parameters such as valve opening, flow rate, and pressure, and instantly adjusts control signals based on this feedback, ensuring smooth and precise valve startup and shutdown. This prevents valve vibration or system instability caused by varying operating conditions. Furthermore, through real-time monitoring and adjustment, it effectively improves the safety and reliability of nuclear power plants and ensures the smooth operation of the reheat control system during load fluctuations.

[0117] In another specific embodiment of the present application, the present application further includes a real-time monitoring module 60 and a fault diagnosis module 70, specifically Figure 7 shown.

[0118] The real-time monitoring module is used to monitor the actual status of the valve in real time.

[0119] Through real-time monitoring, the actual state of the valve, that is, the real-time opening of the valve, is obtained, and whether the real-time opening is consistent with the opening specified by the above-mentioned optimal control instruction is consistent. If it is consistent, no operation is performed; if it is not consistent, subsequent operations are performed.

[0120] The fault diagnosis module is used to perform fault diagnosis on the valve.

[0121] That is, when the real-time opening of the valve does not meet the requirements, a fault diagnosis is performed on the valve. If the diagnosed fault information indicates that the valve is faulty, a redundant system switch is executed, or the preset emergency handling procedure is executed.

[0122] Through these operations, valve status can be monitored in real time and fault analysis can be performed. If a valve becomes stuck or responds slowly, the system automatically switches to a redundant control system or backup actuator, preventing the fault from affecting the normal operation of the nuclear power plant. This mechanism greatly improves the reliability and safety of the system.

[0123] Through the above-mentioned emergency treatment, it is possible to quickly enter emergency mode when encountering valve abnormalities or system failures, and promptly notify operators through the alarm system, ensuring that the nuclear power plant can respond quickly and take corresponding measures to avoid potential safety risks.

[0124] Furthermore, this application also provides the following specific implementation methods, such as Figure 8 As shown, in the following specific implementation, based on the above operations, a data recording module 80 is further included:

[0125] The data recording module is used to record data during operation.

[0126] During these operations, all data, including but not limited to operating status information, load trends, and valve operation and status parameters, is recorded, and an operation report is generated based on the records. By archiving the relevant data for management, subsequent tracking and optimization of nuclear power plant operations can be achieved.

[0127] The units involved in the embodiments described in this disclosure may be implemented in software or hardware. In some cases, the name of a unit does not limit the unit itself. For example, the first acquisition unit may also be described as a "unit for acquiring at least two Internet Protocol addresses."

[0128] The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chip (SOCs), complex programmable logic devices (CPLDs), and the like.

[0129] Figure 9 This is a block diagram of an electronic device according to an embodiment of the present application.

[0130] Reference below Figure 9 , which shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiments of the present disclosure. The terminal device in the embodiments of the present disclosure may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (such as in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. This electronic device is merely an example and should not limit the functionality and scope of use of the embodiments of the present disclosure.

[0131] The electronic device may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 901, which can perform various appropriate actions and processes according to a program stored in a read-only memory ROM 902 or a program loaded from an input device 906 into a random access memory RAM 903. Various programs and data required for the operation of the electronic device are also stored in the RAM. The processing device, ROM, and RAM are connected to each other via a bus 904. An input / output (I / O) interface 905 is also connected to the bus 904.

[0132] Typically, the following devices may be connected to the I / O interface: input devices including, for example, a touch screen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; output devices 907 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 908 including, for example, a magnetic tape, hard disk, etc.; and communication devices 909. Communication devices 909 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although the figures illustrate electronic devices with various devices, it should be understood that not all of the devices shown are required to be implemented or present. More or fewer devices may be implemented or present instead.

[0133] This embodiment also provides an embodiment of a computer-readable storage medium.

[0134] The computer-readable storage medium is applied to an electronic device and carries one or more computer programs. When the one or more computer programs are executed by the electronic device, the electronic device responds to the user's rapid start and stop instructions, obtains the valve's operating status information and the load change trend of the power grid in the future, processes the operating status information, load change trend, and the valve's hard constraints based on the MPC algorithm, and obtains the optimal control signal for the next moment. The optimal control signal is output to the valve actuator of the valve so that the valve actuator controls the valve based on the optimal control signal. This solution avoids the sudden changes in speed and acceleration under traditional start and stop methods by dynamically adjusting the valve's start and stop speed and acceleration, effectively reducing mechanical shock, vibration, and noise, reducing mechanical wear on valves and pipelines, and extending the service life of the equipment.

[0135] It should be noted that the computer-readable medium disclosed herein may be a computer-readable signal medium or a computer-readable storage medium or any combination thereof. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or component, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to, an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0136] In the present disclosure, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.

[0137] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0138] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0139] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0140] The technical solution provided by the present invention is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of the present invention, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A valve rapid start-stop control method, applied to electronic equipment, for rapid start-stop control of valves in a conventional reheat regulation system in a nuclear power plant, characterized in that: The valve rapid start and stop control method comprises the steps of: Responding to the user's quick start and stop instructions, obtaining the working status information of the valve and the load change trend of the power grid in the future; Processing the working state information, the load change trend, and the hard constraints of the valve based on an MPC algorithm to obtain an optimal control signal at the next moment; The optimal control signal is output to a valve actuator of the valve, so that the valve actuator controls the valve based on the optimal control signal.

2. The valve rapid start and stop control method according to claim 1, characterized in that: The step of obtaining the working status information of the valve and the load change trend of the power grid in the future period includes the following steps: Acquiring the working status information based on a plurality of sensors of the valve; Model prediction is performed based on the real-time load data and historical load data of the power grid to obtain the load change trend.

3. The valve rapid start and stop control method according to claim 1 or 2, characterized in that: Also includes the steps: Determining whether the working status information is valid, and if so, executing the step of calculating the optimal control signal based on the MPC algorithm; If the working status information is invalid, the optimal control signal is adjusted.

4. The valve rapid start and stop control method according to claim 3, characterized in that: Also includes the steps: Monitor the actual state of the valve in real time to determine whether the valve has reached the target opening; If the valve does not reach the target opening, fault diagnosis is performed, and redundant system switching and preset emergency processing procedures are executed according to the diagnosed fault information.

5. The valve rapid start and stop control method according to claim 3, characterized in that: Also includes the steps: Record all or part of the data during the operation and generate an operation report.

6. A valve rapid start-stop control device, applied to electronic equipment, used for rapid start-stop control of valves in reheat regulation systems commonly found in nuclear power plants, characterized in that: The valve rapid start and stop control device comprises: a data acquisition module configured to respond to a user's quick start / stop command and acquire the operating status information of the valve and a load change trend of the power grid in the future; a model prediction module configured to process the working state information, the load change trend, and the hard constraints of the valve based on an MPC algorithm to obtain an optimal control signal at the next moment; The control execution module is configured to output the optimal control signal to the valve actuator of the valve, so that the valve actuator controls the valve based on the optimal control signal.

7. The valve rapid start-stop control device according to claim 6, characterized in that: The data acquisition module includes: a state monitoring unit configured to obtain the working state information based on a plurality of sensors of the valve; The load prediction unit is configured to perform model prediction based on the real-time load data and historical load data of the power grid to obtain the load change trend.

8. The valve rapid start-stop control device according to claim 6 or 7, characterized in that: Also includes: a validity judgment module, configured to judge whether the working state information is valid, and if so, to execute the step of calculating the optimal control signal based on the MPC algorithm; The signal adjustment module is configured to adjust the optimal control signal if the working status information is invalid.

9. The valve rapid start-stop control device according to claim 8, characterized in that: Also includes: A real-time monitoring module is configured to monitor the actual state of the valve in real time to determine whether the valve reaches a target opening; The fault diagnosis module is configured to perform fault diagnosis if the valve does not reach the target opening, and execute redundant system switching and preset emergency processing procedures according to the diagnosed fault information.

10. The valve rapid start-stop control device according to claim 8, characterized in that: Also includes: The data recording module is configured to record all or part of the data during the operation and generate an operation report.

11. An electronic device, characterized in that: The electronic device comprises at least one processor and a memory connected to the processor, wherein: The memory is used to store computer programs or instructions; The processor is used to execute the computer program or instruction so that the electronic device can implement the valve rapid start and stop control method according to any one of claims 1 to 5.

12. A computer-readable storage medium, applied to an electronic device, characterized in that: The storage medium carries one or more computer programs, and the one or more computer programs can be executed by the electronic device, so that the electronic device can implement the valve rapid start and stop control method according to any one of claims 1 to 5.

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