Reactor system fault abnormality processing method, device, medium and electronic equipment

Abstract

The present application discloses a method, device, medium and electronic equipment for handling fault anomalies of a reactor system, and relates to the field of reactor system operation support technology. The method includes: obtaining status monitoring signals of various devices in the reactor system; identifying faulty devices of the reactor system based on the status monitoring signals; analyzing at least one feasible fault handling path of the reactor system according to the identified faulty devices; performing path success probability analysis and disposal consequence evaluation on at least one feasible fault handling path in sequence to obtain path success probability analysis results and disposal consequence evaluation results; determining a target feasible fault handling path from at least one feasible fault handling path based on the path success probability analysis results and disposal consequence evaluation results; and guiding the operator to perform fault handling according to the target feasible fault handling path. The present application can guide the operator to perform fault handling, thereby improving the efficiency of handling reactor system fault anomalies.

Description

Technical Field

[0001] The present application relates to the field of reactor system operation support technology, and in particular to a method, device, medium and electronic equipment for handling fault anomalies in a reactor system. Background Art

[0002] Reactor systems involve numerous subsystems and equipment, and their operation involves complex nuclear-thermal coupled flow and heat transfer processes, posing numerous challenges to their safe operation. When a reactor malfunction occurs, some system parameters may deviate from their normal operating range. If the malfunction is not addressed promptly, further deterioration of the malfunction could lead to a reactor shutdown or accident. Therefore, when malfunction signs appear or equipment failure is detected, operators must be able to make accurate judgments and execute effective emergency response procedures within a rapidly evolving, complex, and tense environment. This places extremely high demands on their skills, practical experience, and psychological preparation. The three major nuclear accidents in history (Three Mile Island, Chernobyl, and Fukushima) were all directly linked to human errors, including operator mishandling. Therefore, developing a method that provides rapid, efficient, and accurate guidance and support for operators' emergency response operations in response to potential malfunctions is crucial for improving the safety of reactor systems. Summary of the Invention

[0003] In view of this, the present application provides a method, device, medium and electronic equipment for handling fault anomalies of a reactor system, which mainly aims to guide operators to handle faults, thereby improving the handling efficiency of reactor system fault anomalies and effectively solving reactor system fault anomalies.

[0004] According to a first aspect of the present application, a method for handling a fault anomaly in a reactor system is provided, the method comprising:

[0005] Obtain status monitoring signals of various devices in the reactor system;

[0006] identifying a faulty device of the reactor system based on the status monitoring signal;

[0007] Analyzing at least one feasible fault handling path of the reactor system according to the identified faulty device;

[0008] Performing a path success probability analysis and a handling consequence evaluation on the at least one feasible fault handling path in sequence to obtain a path success probability analysis result and a handling consequence evaluation result;

[0009] Determining a target feasible fault handling path from the at least one feasible fault handling path based on the path success probability analysis result and the handling consequence assessment result;

[0010] Guide the operator to handle the fault according to the target feasible fault handling path.

[0011] According to a second aspect of the present application, a reactor system fault anomaly processing device is provided, the device comprising:

[0012] an acquisition unit, used to acquire status monitoring signals of various devices in the reactor system;

[0013] an identification unit, configured to identify a faulty device of the reactor system based on the status monitoring signal;

[0014] an analyzing unit, configured to analyze at least one feasible fault handling path of the reactor system according to the identified faulty device;

[0015] An evaluation unit, configured to sequentially perform a path success probability analysis and a handling consequence evaluation on the at least one feasible fault handling path, to obtain a path success probability analysis result and a handling consequence evaluation result;

[0016] a determining unit, configured to determine a target feasible fault handling path from the at least one feasible fault handling path based on the path success probability analysis result and the handling consequence assessment result;

[0017] The guidance unit is used to guide the operator to perform fault handling according to the target feasible fault handling path.

[0018] According to a third aspect of the present application, a storage medium is provided, on which a computer program is stored. When the program is executed by a processor, the fault anomaly handling method of the reactor system is implemented.

[0019] According to the fourth aspect of the present application, an electronic device is provided, comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein the processor implements the above-mentioned reactor system fault anomaly handling method when executing the program.

[0020] By means of the above-mentioned technical scheme, the present application provides a method, device, medium and electronic equipment for handling fault anomalies of a reactor system. By analyzing at least one feasible fault handling path of the reactor system and performing path success probability analysis and disposal consequence evaluation on at least one feasible fault handling path in turn, it is possible to determine a target feasible fault handling path from at least one feasible fault handling path, and guide the operator to perform fault handling based on the target feasible fault handling path, thereby improving the handling efficiency of reactor system fault anomalies, effectively solving reactor system fault anomalies, and ensuring the safe operation of the reactor system.

[0021] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 A schematic flow chart of a method for handling a fault anomaly in a reactor system provided in an embodiment of the present application is shown;

[0024] Figure 2 A schematic flow chart of another method for handling a fault anomaly in a reactor system provided in an embodiment of the present application is shown;

[0025] Figure 3 A schematic structural diagram of a reactor secondary circuit system provided in an embodiment of the present application is shown;

[0026] Figure 4 A fault tree diagram provided by an embodiment of the present application is shown;

[0027] Figure 5 A schematic diagram of an event tree provided in an embodiment of the present application is shown;

[0028] Figure 6 A schematic structural diagram of a reactor system fault anomaly handling device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0029] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0030] At present, there is a lack of means to provide fast, efficient and accurate guidance and support for operators' emergency operations.

[0031] In order to solve the above problems, an embodiment of the present invention provides a method for handling fault anomalies in a reactor system, such as Figure 1 As shown, the method includes:

[0032] Step 101: Acquire status monitoring signals of various devices in a reactor system.

[0033] Among them, status monitoring signals include vibration signals, sound signals, temperature signals, current signals, pressure signals, flow signals, etc., which are mainly used to reflect the operating status of various equipment in the reactor system, including steam generators, steam turbines, condensers, feed water regulating valves, feed water pumps, etc.

[0034] The embodiments of the present invention are primarily applicable to scenarios where the best feasible fault handling path is provided to reactor system operators. The embodiments of the present invention are implemented by a device or apparatus capable of analyzing the best feasible fault handling path for a reactor system and guiding operators in troubleshooting.

[0035] According to the embodiment of the present invention, during the operation of the reactor system, the status monitoring signal of each device can be obtained in real time through the instrumentation and control measurement system to monitor the operating status of each device.

[0036] Step 102: Identify faulty equipment in the reactor system based on the status monitoring signal.

[0037] In embodiments of the present invention, the operating status of various devices can be monitored using status monitoring signals. Once an abnormality is detected in the monitoring signals, the corresponding faulty device can be identified. For example, if the status monitoring signals reveal abnormal valve stem movement of a feedwater regulating valve, a continuous decrease in feedwater flow, or a drop in the steam generator water level, a problem with the feedwater regulating valve can be determined, thereby pinpointing the location of the fault in the reactor system.

[0038] Step 103: Analyze at least one feasible fault handling path of the reactor system based on the identified faulty equipment.

[0039] In this embodiment of the present invention, after identifying a faulty device, at least one feasible fault handling path needs to be analyzed. Regarding this process, step 103 specifically includes: updating the state of the fault tree corresponding to the faulty device based on the status monitoring signal of the faulty device to obtain an updated fault tree corresponding to the faulty device; determining a target event tree associated with the updated fault tree from each event tree corresponding to the reactor system; and determining at least one feasible fault handling path for the reactor system based on the target event tree.

[0040] When determining at least one feasible fault handling path of the reactor system according to the target event tree, first determine the various processing paths of the reactor system based on the various header events involved in the target event tree, then analyze the consequence states corresponding to the various processing paths, and based on the consequence states, determine at least one feasible fault handling path from the various processing paths.

[0041] Each device has a corresponding fault tree, which includes the device identification, failure probability, and status. The device identification can be, for example, a device code or name. Furthermore, different events occurring in the reactor system correspond to different event trees. These include normal operation events and abnormal fault events. The event tree includes the action method used to handle or resolve the event, known as the header event. The event tree is preconfigured for potential events in the reactor system.

[0042] Specifically, the state of the fault tree corresponding to the faulty device is first updated. For example, based on the status monitoring signal of the water supply regulating valve, the device failure probability in the water supply regulating valve fault tree is adjusted to 1. At the same time, the device state in the water supply regulating valve fault tree is adjusted to a reduced water supply regulating valve opening and valve malfunction, indicating that the water supply regulating valve has been confirmed to have failed. A target event tree associated with the updated fault tree is then determined from the pre-configured event trees. Based on the various header events involved in the target event tree, multiple processing paths for the reactor system can be determined. Then, based on the possible consequence states resulting from executing each processing path, at least one feasible fault handling path is screened from the multiple processing paths. The consequence states include full power operation, reduced power operation, manual shutdown, and emergency shutdown. In this embodiment of the present invention, maintaining the operation of the reactor system without a shutdown is the goal of abnormal handling. Based on this, at least one feasible fault handling path can be screened from the multiple processing paths.

[0043] Step 104 : Perform path success probability analysis and handling consequence evaluation on the at least one feasible fault handling path in sequence to obtain a path success probability analysis result and a handling consequence evaluation result.

[0044] For the embodiment of the present invention, after determining at least one feasible fault handling path, it is necessary to perform a path success probability analysis and a disposal consequence evaluation to select the best fault handling path from the at least one feasible fault handling path. For this process, step 104 specifically includes: determining the execution success probability of the at least one feasible fault handling path based on the success probability of the operation of the relevant equipment involved in the at least one feasible fault handling path; selecting the feasible fault handling path to be evaluated whose execution success probability meets the preset requirements from the at least one feasible fault handling path; performing a disposal consequence evaluation on the feasible fault handling path to be evaluated to obtain the disposal consequence information corresponding to the feasible fault handling path to be evaluated; and determining the path success probability analysis result and the disposal consequence evaluation result respectively based on the execution success probability and the disposal consequence information.

[0045] When screening the feasible fault handling paths to be evaluated, the at least one feasible fault handling path is sorted based on the execution success probability to obtain a sorting result; and according to the sorting result, the feasible fault handling path to be evaluated is screened from the at least one feasible fault handling path.

[0046] When evaluating the consequences of the feasible fault handling path to be evaluated, a curve showing changes in system parameters over time during fault handling based on the feasible fault handling path to be evaluated is analyzed; and based on the curve, the consequences of the fault handling corresponding to the feasible fault handling path to be evaluated are determined. System parameters include power, pressure, flow, etc.

[0047] Specifically, a PSA analysis module can be used to analyze the success probability of each feasible fault handling path. That is, the header event involved in each feasible fault handling path requires the corresponding equipment or system to operate. Based on the operation success probability of the relevant equipment, the operation success probability of the entire system can be determined, and the execution success probability of each feasible fault handling path can be determined. Then, based on the execution success probability, each feasible fault handling path is sorted, and the feasible fault handling paths to be evaluated whose sorting results are within a preset range are screened out. For example, the top three feasible fault handling paths are screened out as the feasible fault handling paths to be evaluated. Then, the consequences of the treatment of the feasible fault handling paths to be evaluated are evaluated. That is, the time-varying curve of the system parameters when the fault treatment is performed based on the feasible fault handling path to be evaluated is analyzed, and it is determined whether the time-series changes of the system parameters meet the limit requirements of the power plant operating parameters and the reactor protection parameters. If so, it means that the feasible fault handling path to be evaluated can be used for fault treatment and will not cause a shutdown or pose a threat to the safety of the reactor system. In this way, the treatment consequence information of the feasible fault handling path to be evaluated can be determined.

[0048] Step 105: Determine a target feasible fault handling path from the at least one feasible fault handling path based on the path success probability analysis result and the handling consequence assessment result.

[0049] For an embodiment of the present invention, after determining the path success probability and handling consequence information corresponding to the feasible fault handling path to be evaluated, the path success probability and handling consequence information can be comprehensively considered to screen out the target feasible fault handling path, that is, the best feasible fault handling path, from the feasible fault handling path to be evaluated.

[0050] Specifically, on the basis that the temporal changes of system parameters meet the restriction requirements of power plant operating parameters and reactor protection parameters, that is, on the basis that the disposal consequence information meets the requirements, the feasible fault handling path to be evaluated with the highest path success probability is selected as the target feasible fault handling path.

[0051] The embodiments of the present invention comprehensively apply probabilistic methods such as dynamic reconstruction of fault trees / event trees and evaluation of the success probability of disposal paths, and deterministic methods such as evaluation of the utility of disposal consequences, and can accurately analyze the target feasible fault handling paths of the reactor system, thereby providing operators with fast, efficient and accurate guidance support for emergency disposal operations after abnormal reactor failures occur.

[0052] Step 106: Guide the operator to perform fault handling according to the target feasible fault handling path.

[0053] According to the embodiment of the present invention, after determining the target feasible fault handling path, the operator is guided to perform emergency operations according to the operation steps involved in the target feasible fault handling path, and finally restore the reactor system to a normal state.

[0054] An embodiment of the present invention provides a method for handling reactor system fault anomalies. By analyzing at least one feasible fault handling path of the reactor system and performing path success probability analysis and disposal consequence evaluation on the at least one feasible fault handling path in sequence, a target feasible fault handling path can be determined from the at least one feasible fault handling path, and an operator can be guided to perform fault handling based on the target feasible fault handling path. This can improve the handling efficiency of reactor system fault anomalies, effectively resolve reactor system fault anomalies, and ensure the safe operation of the reactor system.

[0055] Furthermore, as a refinement and expansion of the specific implementation of the above embodiment, in order to fully illustrate the implementation of this embodiment, this embodiment also provides another method for handling fault anomalies in a reactor system, such as Figure 2 As shown, the method includes:

[0056] Step 201: When a new faulty device is identified based on the status monitoring signal, the at least one feasible fault handling path is updated to obtain a new feasible fault handling path.

[0057] According to the embodiment of the present invention, during the process of guiding and handling a faulty device, if a new device problem or function degradation occurs, the steps in the first embodiment are repeated for the new faulty device, and the previous feasible fault handling path is updated to obtain a new feasible fault handling path.

[0058] Step 202: Based on the path success probability analysis result and the handling consequence assessment result corresponding to the new feasible fault handling path, a new target feasible fault handling path is re-determined from the new feasible fault handling path.

[0059] In this embodiment of the present invention, a new target feasible fault handling path is re-determined from the new feasible fault handling paths by comprehensively considering the results of the path success probability analysis and the results of the disposal consequence assessment. For example, if the temporal changes in system parameters meet the constraints of power plant operating parameters and reactor protection parameters, that is, if the disposal consequence information meets the requirements, the new feasible fault handling path with the highest path success probability is selected as the new target feasible fault handling path.

[0060] Step 203: Guide the operator to perform fault handling according to the new target feasible fault handling path.

[0061] According to the embodiment of the present invention, after determining the new target feasible fault handling path, the operator is guided to perform emergency operations according to the operating steps involved in the new target feasible fault handling path, and finally restore the reactor system to a normal state.

[0062] In some embodiments, when the operator has performed all operations in the target feasible fault handling path and still cannot eliminate the equipment fault in the reactor system, and the abnormal fault condition continues to deteriorate, posing a threat to the reactor system, the operator is prompted to perform an emergency shutdown operation or an accident handling operation in order to ensure the safety of the reactor through safety measures such as a dedicated safety system.

[0063] In some embodiments, to implement the aforementioned reactor fault anomaly handling steps, a dedicated computer and handling guidance software system are required within the reactor system control room to perform functions such as status detection, information collection, data processing, analysis and calculation, handling guidance, and information display. Using a digital interactive display, operators can access information such as the initial cause of the fault, target feasible fault handling paths and success probabilities, handling consequence assessment results, and handling guidance step prompts. They can then use remote control or on-site operation to execute each handling step according to the system's guidance.

[0064] In order to make the technical solution provided by the embodiment of the present invention clearer, a simplified reactor secondary loop system is taken as an example to illustrate the fault anomaly handling process of the reactor system.

[0065] like Figure 3 In the reactor secondary circuit system shown, under normal circumstances, the heat generated by the reactor core is transferred from the primary coolant to its secondary side via the steam generator heat transfer tubes. The secondary fluid in the steam generator is heated to generate steam, which is then transported via steam pipelines to steam turbines and other gas-consuming equipment to perform work. The remaining exhaust steam condenses in the condenser. Driven by the feedwater pump, the resulting cooling water is regulated by feedwater regulating valve A (two valves in parallel for redundancy, one for backup and one for use during normal operation). A certain flow of condensate is returned to the secondary side of the steam generator through the feedwater system, completing the cycle and achieving continuous heat transfer and capacity conversion.

[0066] Assume that the valve opening of water supply regulating valve A continues to decrease due to a control system or mechanical system failure.

[0067] First, when the equipment status monitoring module or the instrumentation and control measurement system detects abnormal changes such as abnormal movement of the valve stem of the water supply regulating valve A, continuous decrease in water supply flow, decrease in steam generator water level, and increase in the temperature of the coolant on the first return side through the equipment status monitoring signal, it will send the equipment status monitoring signal to the fault abnormality diagnosis module. The fault abnormality diagnosis module can identify the water supply regulating valve A as a faulty device based on the equipment status monitoring signal, and the fault is manifested as a decrease in valve opening for unknown reasons.

[0068] Then, the faulty device (feedwater regulating valve A) is located in the pre-built reactor system fault tree, and the corresponding fault tree is updated using the real-time measured device status monitoring signal, such as Figure 4 As shown in FIG, the probability Q of valve malfunction in the fault tree corresponding to the water supply regulating valve A is updated from 3.0E-8 to 1.0, indicating that the water supply regulating valve A is confirmed to be failed.

[0069] like Figure 5 As shown in (a), after the fault tree corresponding to the feedwater regulating valve A is updated, it is necessary to locate the target event tree and header event related to the updated fault tree in the preset reactor system event tree.

[0070] Then, in order to ensure the overall safety of the reactor system and to maintain the reactor power operation (i.e., no shutdown) as the purpose of exception handling, three feasible fault handling paths that ensure the reactor operates at full power or reduced power and their corresponding execution success probabilities are automatically identified based on the target event tree, as follows: Figure 5(a) shows feasible fault handling paths 1, 2, and 3, respectively. In feasible fault handling path 1, the instrumentation system is used to reset the opening of feedwater regulating valve A to its normal value. The real-time success probability of this path is 0.8902, and the consequence of successful handling is full-power operation of the reactor. In feasible fault handling path 2, feedwater regulating valve B, which is connected in parallel with feedwater regulating valve A, is opened to restore the feedwater flow to its normal value. The real-time success probability of this path is 0.887, and the consequence of successful handling is full-power operation of the reactor. In feasible fault handling path 3, the steam generator (SG) on the fault side of feedwater regulating valve A is directly isolated, and the reactor power reduction operation is performed. The real-time success probability of this path is 0.757, and the consequence of successful handling is reactor power reduction operation.

[0071] Furthermore, a deterministic rapid evaluation module (with a system analysis program as its computational core) was used to rapidly evaluate the consequences of the three reactor failure response paths. Specifically, for each path, the system predicted the time-varying curves of key system parameters (such as power, pressure, and flow), and evaluated whether these temporal variations met the constraints of the power plant's operating parameters and reactor protection parameters. This helped operators understand the consequences of different response paths and potential problems, such as whether protection measures would be triggered and the gaps between system parameters and protection limits.

[0072] Furthermore, the results of the path success probability analysis and the disposal consequence assessment of the PSA module analysis are integrated, and combined with the current operation requirements of the reactor, an optimal feasible fault handling path is recommended, namely the target feasible fault handling path. Figure 5 Taking (a) as an example, feasible fault handling path 1 with the highest success probability and capable of ensuring full power operation of the reactor is selected. The operator performs the operation of resetting the opening of the feedwater regulating valve A to the normal value using the instrumentation and control system.

[0073] Furthermore, when the target feasible troubleshooting path involves multiple steps, the device status detection module monitors the status of the relevant safety devices in real time during each step. If a new device failure or functional degradation occurs during operation, the above steps are repeated to generate a new feasible troubleshooting path.

[0074] like Figure 5 As shown in (b), it is assumed that the operator is performing Figure 5In (a), feasible fault handling path 1, which involves using the instrumentation and control system to reset the opening of feedwater regulating valve A to its normal value, fails. However, an instrumentation and control system failure occurs, preventing the opening of feedwater regulating valve A from being restored to its normal value. Therefore, the above steps need to be repeated to generate new feasible fault handling paths, specifically including feasible fault handling path 1 and feasible fault handling path 2. Failure handling path 1 involves opening feedwater regulating valve B, which is connected in parallel with feedwater regulating valve A, to restore the feedwater flow to normal. This path has a real-time success probability of 0.887, and the consequence of a successful resolution is full reactor power operation. Failure handling path 2 directly isolates the steam generator (SG) on the side where the fault occurred in feedwater regulating valve A and performs a reactor power reduction operation. This path has a real-time success probability of 0.757, and the consequence of a successful resolution is reactor power reduction operation. Subsequently, based on the path success probability analysis results calculated by the PSA module and the resolution consequence assessment results, a new target feasible fault handling path is selected to guide the operator in subsequent abnormality resolution operations.

[0075] Furthermore, when the operator has performed all operations in the target feasible fault handling path and still cannot eliminate the equipment fault in the reactor system, and the abnormal fault condition continues to deteriorate and poses a threat to the reactor, the operator is prompted to perform an emergency shutdown operation or an accident handling operation in order to ensure the safety of the reactor through safety measures such as a dedicated safety system.

[0076] Another method for handling reactor system fault anomalies provided by an embodiment of the present invention analyzes at least one feasible fault handling path of the reactor system and performs path success probability analysis and disposal consequence evaluation on the at least one feasible fault handling path in sequence. The method can determine a target feasible fault handling path from the at least one feasible fault handling path, and guide the operator to perform fault handling based on the target feasible fault handling path. This can improve the handling efficiency of reactor system fault anomalies, effectively resolve reactor system fault anomalies, and ensure the safe operation of the reactor system.

[0077] Further, as Figure 1 and Figure 2 The embodiment provides a device for handling abnormality of a reactor system, such as Figure 6 As shown, the device includes: an acquisition unit 31 , an identification unit 32 , an analysis unit 33 , an evaluation unit 34 , a determination unit 35 and a guidance unit 36 ​​.

[0078] The acquisition unit 31 may be used to acquire status monitoring signals of various devices in the reactor system.

[0079] The identification unit 32 may be configured to identify a faulty device in the reactor system based on the status monitoring signal.

[0080] The analyzing unit 33 may be configured to analyze at least one feasible fault handling path of the reactor system according to the identified faulty device.

[0081] The evaluation unit 34 may be configured to sequentially perform path success probability analysis and handling consequence evaluation on the at least one feasible fault handling path to obtain a path success probability analysis result and a handling consequence evaluation result.

[0082] The determining unit 35 may be configured to determine a target feasible fault handling path from the at least one feasible fault handling path based on the path success probability analysis result and the handling consequence assessment result;

[0083] The guiding unit 36 ​​may be used to guide the operator to perform fault handling according to the target feasible fault handling path.

[0084] In some embodiments, the analyzing unit 33 includes an updating module and a first determining module.

[0085] The updating module may be configured to update the status of the fault tree corresponding to the faulty device according to the status monitoring signal of the faulty device, and obtain an updated fault tree corresponding to the faulty device.

[0086] The first determining module may be configured to determine a target event tree associated with the updated fault tree from among the event trees corresponding to the reactor system.

[0087] The first determination module may also be configured to determine at least one feasible fault handling path for the reactor system based on the target event tree.

[0088] In some embodiments, the first determination module can be specifically used to determine the various processing paths of the reactor system based on the various header events involved in the target event tree; analyze the consequence status corresponding to the various processing paths, and based on the consequence status, determine at least one feasible fault processing path from the various processing paths.

[0089] In some embodiments, the evaluation unit 34 includes: a second determination module, a screening module, and an evaluation module.

[0090] The second determining module may be configured to determine the execution success probability of the at least one feasible fault handling path based on the success probability of the operation of related devices involved in the at least one feasible fault handling path.

[0091] The screening module may be configured to screen out, from the at least one feasible fault handling path, a feasible fault handling path to be evaluated whose execution success probability meets a preset requirement.

[0092] The evaluation module may be configured to perform a treatment consequence evaluation on the feasible fault handling path to be evaluated, and obtain treatment consequence information corresponding to the feasible fault handling path to be evaluated.

[0093] The second determination module may also be configured to determine the path success probability analysis result and the disposal consequence evaluation result respectively based on the execution success probability and the disposal consequence information.

[0094] In some embodiments, the screening module can be specifically used to sort the at least one feasible fault handling path based on the execution success probability to obtain a sorting result; and according to the sorting result, screen out the feasible fault handling path to be evaluated from the at least one feasible fault handling path.

[0095] In some embodiments, the evaluation module can be specifically used to analyze the change curve of system parameters over time when fault handling is performed based on the feasible fault handling path to be evaluated; and determine the handling consequence information corresponding to the feasible fault handling path to be evaluated based on the change curve.

[0096] In some embodiments, the identification unit 32 may be further configured to update the at least one feasible fault handling path to obtain a new feasible fault handling path when a new faulty device is identified based on the status monitoring signal.

[0097] The determining unit 35 may also be configured to re-determine a new target feasible fault handling path from the new feasible fault handling path based on a path success probability analysis result and a handling consequence assessment result corresponding to the new feasible fault handling path.

[0098] The guiding unit 36 ​​may also be used to guide the operator to perform fault handling according to the new target feasible fault handling path.

[0099] It should be noted that for other corresponding descriptions of the functional units involved in the reactor system fault anomaly handling device provided in this embodiment, please refer to Figure 1 and Figure 2 The corresponding description in will not be repeated here.

[0100] Based on the above Figure 1 and Figure 2 The method shown in FIG. 1 is a method for performing the above-mentioned operation. Accordingly, this embodiment further provides a storage medium on which a computer program is stored. When the program is executed by a processor, the above-mentioned Figure 1 and Figure 2 The reactor system fault anomaly handling method is shown.

[0101] Based on this understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, USB flash drive, mobile hard disk, etc.), and includes a number of instructions for enabling an electronic device (which can be a personal computer, server, or network device, etc.) to execute the methods of various implementation scenarios of the present application.

[0102] Based on the above Figure 1 and Figure 2 The method shown, and Figure 6 In order to achieve the above-mentioned purpose, the embodiment of the present application further provides an electronic device, which can be a personal computer, a tablet computer, a server, or other network equipment, etc. The device includes a storage medium and a processor; the storage medium is used to store a computer program; the processor is used to execute the computer program to achieve the above-mentioned Figure 1 and Figure 2 The reactor system fault anomaly handling method is shown.

[0103] Optionally, the physical device may further include a user interface, a network interface, a camera, a radio frequency (RF) circuit, a sensor, an audio circuit, a Wi-Fi module, and the like. The user interface may include a display, an input unit such as a keyboard, and the like. The optional user interface may also include a USB interface, a card reader interface, and the like. The network interface may optionally include a standard wired interface, a wireless interface (such as a Wi-Fi interface), and the like.

[0104] Those skilled in the art will understand that the above-mentioned physical device structure provided in this embodiment does not constitute a limitation on the physical device, and may include more or fewer components, or a combination of certain components, or different component arrangements.

[0105] The storage medium may also include an operating system and a network communication module. The operating system is a program that manages the hardware and software resources of the physical device, supporting the execution of information processing programs and other software and / or programs. The network communication module is used to enable communication between components within the storage medium, as well as with other hardware and software within the physical information processing device.

[0106] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform, or by hardware.

[0107] The embodiment of the present invention analyzes at least one feasible fault handling path of the reactor system and performs path success probability analysis and disposal consequence evaluation on the at least one feasible fault handling path in sequence. It can determine a target feasible fault handling path from the at least one feasible fault handling path, and guide the operator to perform fault handling based on the target feasible fault handling path. This can improve the handling efficiency of reactor system fault anomalies, effectively resolve reactor system fault anomalies, and ensure the safe operation of the reactor system.

[0108] Those skilled in the art will understand that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily required to implement the present application. Those skilled in the art will understand that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more devices different from the implementation scenario. The modules of the above-mentioned implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0109] The serial numbers of the above application are for descriptive purposes only and do not represent the advantages or disadvantages of the implementation scenarios. The above disclosure only discloses several specific implementation scenarios of the present application, but the present application is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present application.

Claims

1. A method for handling a reactor system failure anomaly, characterized in that: include: Obtain status monitoring signals of various devices in the reactor system; identifying a faulty device of the reactor system based on the status monitoring signal; Analyzing at least one feasible fault handling path of the reactor system according to the identified faulty device; Performing a path success probability analysis and a handling consequence evaluation on the at least one feasible fault handling path in sequence to obtain a path success probability analysis result and a handling consequence evaluation result; Based on the path success probability analysis result and the disposal consequence assessment result, a target feasible fault handling path is determined from the at least one feasible fault handling path, wherein, according to the path success probability analysis result, a feasible fault handling path to be evaluated whose execution success probability meets preset requirements is screened out, and based on a curve of system parameter changes over time when fault handling is performed on the feasible fault handling path to be evaluated, feasible fault handling paths to be evaluated that meet the power plant operating parameter and reactor protection parameter restriction requirements are screened out, and the feasible fault handling path to be evaluated with the highest execution success probability is selected from the feasible fault handling paths to be evaluated that meet the restriction requirements as the target feasible fault handling path; Guide the operator to handle the fault according to the target feasible fault handling path; The step of analyzing at least one feasible fault handling path of the reactor system based on the identified faulty device includes: updating the state of the fault tree corresponding to the faulty device according to the state monitoring signal of the faulty device to obtain an updated fault tree corresponding to the faulty device; Determine a target event tree associated with the updated fault tree from each event tree corresponding to the reactor system; At least one feasible fault handling path of the reactor system is determined based on the target event tree.

2. The method according to claim 1, characterized in that The determining, based on the target event tree, at least one feasible fault handling path of the reactor system includes: Determining various processing paths of the reactor system based on various header events involved in the target event tree; Analyze the consequence states corresponding to the various processing paths, and determine at least one feasible fault processing path from the various processing paths based on the consequence states.

3. The method according to claim 1, characterized in that The performing of path success probability analysis and handling consequence evaluation on the at least one feasible fault handling path in sequence to obtain a path success probability analysis result and a handling consequence evaluation result includes: Determining a success probability of executing the at least one feasible fault handling path based on a success probability of an operation of a related device involved in the at least one feasible fault handling path; Filtering out a feasible fault handling path to be evaluated whose execution success probability meets a preset requirement from the at least one feasible fault handling path; Performing a disposal consequence evaluation on the feasible fault handling path to be evaluated to obtain disposal consequence information corresponding to the feasible fault handling path to be evaluated; Based on the execution success probability and the handling consequence information, the path success probability analysis result and the handling consequence evaluation result are determined respectively.

4. The method according to claim 3, characterized in that The step of selecting a feasible fault handling path to be evaluated whose execution success probability meets a preset requirement from the at least one feasible fault handling path includes: sorting the at least one feasible fault handling path based on the execution success probability to obtain a sorting result; According to the ranking result, a feasible fault handling path to be evaluated is screened out from the at least one feasible fault handling path.

5. The method according to claim 3, characterized in that The performing a treatment consequence evaluation on the feasible fault handling path to be evaluated to obtain treatment consequence information corresponding to the feasible fault handling path to be evaluated includes: Analyze the curve of system parameters changing over time when fault handling is performed based on the feasible fault handling path to be evaluated; According to the change curve, the disposal consequence information corresponding to the feasible fault handling path to be evaluated is determined.

6. The method according to any one of claims 1 to 5, characterized in that The method further comprises: When a new faulty device is identified based on the status monitoring signal, the at least one feasible fault handling path is updated to obtain a new feasible fault handling path; Re-determining a new target feasible fault handling path from the new feasible fault handling path based on the path success probability analysis result and the disposal consequence assessment result corresponding to the new feasible fault handling path; The operator is guided to perform fault handling according to the new target feasible fault handling path.

7. A reactor system fault anomaly handling device, characterized in that: include: an acquisition unit, used to acquire status monitoring signals of various devices in the reactor system; an identification unit, configured to identify a faulty device of the reactor system based on the status monitoring signal; an analyzing unit, configured to analyze at least one feasible fault handling path of the reactor system according to the identified faulty device; An evaluation unit, configured to sequentially perform a path success probability analysis and a handling consequence evaluation on the at least one feasible fault handling path, to obtain a path success probability analysis result and a handling consequence evaluation result; a determination unit, configured to determine a target feasible fault handling path from the at least one feasible fault handling path based on the path success probability analysis result and the disposal consequence assessment result, wherein, based on the path success probability analysis result, a feasible fault handling path to be evaluated whose execution success probability meets preset requirements is screened out, and based on a curve of a change in a system parameter over time when fault handling is performed on the feasible fault handling path to be evaluated, feasible fault handling paths to be evaluated that meet the restriction requirements of power plant operating parameters and reactor protection parameters are screened out, and the feasible fault handling path to be evaluated with the highest execution success probability is selected from the feasible fault handling paths to be evaluated that meet the restriction requirements as the target feasible fault handling path; A guidance unit, configured to guide an operator to perform fault handling according to the target feasible fault handling path; The analysis unit is specifically configured to update the status of the fault tree corresponding to the faulty device based on the status monitoring signal of the faulty device to obtain an updated fault tree corresponding to the faulty device; determine a target event tree associated with the updated fault tree from each event tree corresponding to the reactor system; and determine at least one feasible fault handling path for the reactor system based on the target event tree.

8. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

9. An electronic device comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein: When the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.

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