Fault abnormity processing method and device of reactor system, medium and electronic equipment

Abstract

The invention discloses a fault abnormity processing method and device of a reactor system, a medium and electronic equipment, and relates to the technical field of reactor system operation support. The method comprises the following steps: acquiring a state monitoring signal of each device in a reactor system; identifying a faulty device of the reactor system based on the state monitoring signal; analyzing at least one feasible fault processing path of the reactor system according to the identified fault equipment; sequentially performing path success probability analysis and disposal consequence evaluation on the at least one feasible fault processing path to obtain a path success probability analysis result and a disposal consequence evaluation result; determining a target feasible fault processing path from the at least one feasible fault processing path based on the path success probability analysis result and the disposal consequence evaluation result; and according to the target feasible fault processing path, guiding an operator to carry out fault processing. According to the invention, an operator can be guided to carry out fault processing, so that the processing efficiency of the reactor system fault abnormity can be improved.

Description

Technical Field

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

[0002] The reactor system involves many subsystems and equipment, and the operation process involves complex nuclear-thermal coupled flow heat transfer processes, which poses many challenges to the safe operation of the reactor system. When a reactor fails, some system parameters of the reactor system will deviate from the normal operating range. If the failure is not handled in time, the failure may further deteriorate and cause the reactor to shut down or an accident. In this regard, when the signs of abnormal failure appear or equipment failure is detected, the operator needs to make accurate judgments in the rapidly changing complex situation and tense atmosphere, and perform correct and effective emergency response operations, which places extremely high demands on the operator's skill level, practical experience and psychological quality. The three major nuclear safety accidents in human history (Three Mile Island nuclear accident, Chernobyl nuclear accident and Fukushima nuclear accident) are all directly related to human errors such as improper operation of operators. Therefore, in view of the abnormal failures that may occur during the operation of the reactor system, it is of great significance to develop a method that can provide fast, efficient and accurate guidance and support for the operator's emergency response operations, which is of great significance to improving the safe operation level of the reactor system. 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 of a reactor system is provided, the method comprising:

[0005] Obtain status monitoring signals of each device 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 equipment;

[0008] Performing 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;

[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 disposal consequence assessment result;

[0010] According to the target feasible fault handling path, the operator is guided to handle the fault.

[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 for acquiring 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 processing 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, and obtain a path success probability analysis result and a handling consequence evaluation result;

[0016] 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;

[0017] The guiding 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, and when the program is executed by a processor, the fault anomaly handling method of the reactor system described above is implemented.

[0019] According to a 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 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 diagram of the structure of a reactor secondary loop 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 the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[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, the 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 embodiment of the present invention is mainly applicable to the scenario of providing the best feasible fault handling path for the reactor system operator. The execution subject of the embodiment of the present invention is a device or equipment that can analyze the best feasible fault handling path of the reactor system and guide the operator to handle the fault.

[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] For the embodiments of the present invention, the operating status of each device can be monitored through the status monitoring signal, and once the monitoring signal is abnormal, the corresponding faulty device can be identified. For example, if the status monitoring signal finds that the valve stem of the feedwater regulating valve is abnormally moving, the feedwater flow rate continues to decrease, and the water level of the steam generator is reduced, it can be determined that there is a problem with the feedwater regulating valve, thereby clarifying the location of the fault in the reactor system.

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

[0039] For the embodiment of the present invention, after the faulty device is identified, at least one feasible fault handling path needs to be analyzed. For this process, step 103 specifically 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; 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 of the reactor system based on the target event tree.

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

[0041] Each device has a corresponding fault tree, which includes device identification, device failure probability and device status. The device identification can be specifically device code, device name, etc. In addition, different events occurring in the reactor system correspond to different event trees. Events include normal operation events and abnormal fault events. The event tree includes the operation mode for processing or solving the event, i.e., the header event. The event tree is pre-configured for events that may occur in the reactor system.

[0042] Specifically, first, the state of the fault tree corresponding to the faulty equipment is updated. For example, according to the state monitoring signal of the water supply regulating valve, the equipment failure probability in the fault tree of the water supply regulating valve is adjusted to 1, and at the same time, the equipment state in the fault tree of the water supply regulating valve is adjusted to the water supply regulating valve opening is reduced, and the valve malfunctions, so as to indicate that the water supply regulating valve is confirmed to be failed. Then, the target event tree associated with the updated fault tree is determined from each pre-configured event tree. Based on each header event involved in the target event tree, multiple processing paths of the reactor system can be determined. Then, according to the consequence state that may be caused by executing each processing path, at least one feasible fault processing path is selected from the multiple processing paths, wherein the consequence state includes full power operation, reduced power operation, manual shutdown, emergency shutdown, etc. In the embodiment of the present invention, keeping the reactor system running and not shutting down is taken as the goal of abnormal handling. Based on this, at least one feasible fault processing path can be selected from 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; based on the execution success probability and the disposal consequence information, respectively determining the path success probability analysis result and the disposal consequence evaluation result.

[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 out from the at least one feasible fault handling path.

[0046] When evaluating the consequences of the feasible fault handling path to be evaluated, the curve of changes in system parameters over time when the fault is handled based on the feasible fault handling path to be evaluated is analyzed; and the consequences of the handling corresponding to the feasible fault handling path to be evaluated is determined according to the change curve. The system parameters include power, pressure, flow, etc.

[0047] Specifically, the PSA analysis module can be used to analyze the path 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. According to the operation success probability of the relevant equipment, the operation success probability of the entire system can be determined, and then the execution success probability of each feasible fault handling path can be determined. After that, based on the execution success probability, the feasible fault handling paths to be evaluated are sorted, and the feasible fault handling paths to be evaluated whose sorting results are within the preset range are screened out. For example, the top three feasible fault handling paths are screened out as feasible fault handling paths to be evaluated. Then, the consequences of the treatment of the feasible fault handling path to be evaluated are evaluated, that is, the curve of the change of system parameters over time when the fault treatment is performed based on the feasible fault handling path to be evaluated is analyzed, and it is judged whether the time series change of the system parameters meets the restriction requirements of the power plant operation parameters and the reactor protection parameters. If it is satisfied, it means that the feasible fault handling path to be evaluated can be used for fault treatment, and will not cause shutdown or pose a threat to the safety of the reactor system, thereby determining the consequences of the treatment of the feasible fault handling path to be evaluated.

[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 the embodiments 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 time series changes of system parameters meet the restriction requirements of power plant operation 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 probability of path success 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 probability of success of disposal paths, and deterministic methods such as evaluation of the utility of disposal consequences, and can accurately analyze the target feasible fault handling path 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: guiding 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] A method for handling a reactor system fault anomaly provided in an embodiment of the present invention can determine a target feasible fault handling path from at least one feasible fault handling path 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, and guide an operator to handle the fault 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 safe operation of the reactor system.

[0055] Further, 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 processing path is updated to obtain a new feasible fault processing path.

[0057] For 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: re-determine 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.

[0059] In the embodiment of the present invention, for the new feasible fault handling path, the path success probability analysis results and the disposal consequence evaluation results are comprehensively considered, and the new target feasible fault handling path is re-determined from the new feasible fault handling path. For example, on the basis that the time series changes of the system parameters meet the restriction requirements of the power plant operation parameters and the reactor protection parameters, that is, on the basis that 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: guiding 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 operation 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 and poses 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, in order to implement the above reactor fault abnormality handling steps, a dedicated computer and a handling guidance software system need to be set up in the reactor system control room to realize functions such as status detection, information collection, data processing, analysis and calculation, handling guidance, and information display. By adopting a digital interactive display method, the operator can read information such as the initial cause of the fault, the target feasible fault handling path and success probability, the handling consequence assessment results, and the handling guidance step prompts, and use remote control, on-site operation, etc. to perform each step of the handling operation according to the system 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 loop system shown, under normal circumstances, the heat generated by the reactor core can be transferred to its secondary side by the primary loop coolant through the steam generator heat transfer pipe. The secondary side fluid in the steam generator is heated to generate steam, which is transported to the steam turbine and other gas-consuming equipment through the steam pipeline to perform work. The remaining exhaust steam is condensed in the condenser. The cooling water formed after condensation is driven by the feed water pump and regulated by the feed water regulating valve A (double valve parallel redundant equipment, one for backup and one for use during normal operation). A certain flow of condensed feed water is returned to the secondary side of the steam generator through the feed water system, forming a complete cycle, realizing continuous heat transfer and capacity conversion.

[0066] Assume that the valve opening of water supply regulating valve A continues to decrease due to 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, increase in coolant temperature on the first return side, etc. 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 an unexplained decrease in valve opening.

[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, 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 keep the reactor power running (i.e., no shutdown) as the purpose of exception handling, three feasible fault handling paths to ensure the reactor is running at full power or reduced power and their corresponding execution success probabilities are automatically identified based on the target event tree, such as Figure 5(a) shows feasible fault handling path 1, feasible fault handling path 2 and feasible fault handling path 3, respectively. Among them, feasible fault handling path 1 uses the instrumentation system to reset the opening of the feedwater regulating valve A to the normal value. The real-time success probability of this path is 0.8902, and the consequence of successful handling is that the reactor operates at full power. Feasible fault handling path 2 opens the feedwater regulating valve B in parallel with the feedwater regulating valve A to restore the feedwater flow to the normal value. The real-time success probability of this path is 0.887, and the consequence of successful handling is that the reactor operates at full power. Feasible fault handling path 3 directly isolates the steam generator (SG) on the side where the feedwater regulating valve A fails and performs the reactor power reduction operation. The real-time success probability of this path is 0.757, and the consequence of successful handling is that the reactor operates at reduced power.

[0071] Furthermore, based on the deterministic rapid evaluation module (the computing kernel is the system analysis program), the fault disposal consequences of the above three disposal paths of the reactor are rapidly evaluated. Specifically, for each path, the change curve of key system parameters (such as power, pressure, flow) over time is predicted, and it is evaluated whether the time series changes of the above parameters meet the limit requirements of power plant operating parameters and reactor protection parameters, so as to help operators understand the disposal consequences of different paths and possible problems, such as whether protection will be triggered, the gap between system parameters and protection limits, etc.

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

[0073] Furthermore, when the target feasible fault handling path has multiple steps of operation, the equipment status detection module monitors the status of the relevant safety equipment in real time during each step of the operation performed by the operator. When a new equipment failure or function degradation occurs during the operation, the above steps are repeated to generate a new feasible fault handling path.

[0074] like Figure 5 As shown in (b), it is assumed that the operator is performing Figure 5In the feasible fault handling path 1 in (a), when the opening of the feedwater regulating valve A is reset to the normal value by the instrumentation and control system, an instrumentation and control system failure occurs, resulting in the inability to restore the opening of the feedwater regulating valve A to the normal value. In this regard, it is necessary to repeat the above steps to generate a new feasible fault handling path, which specifically includes feasible fault handling path 1 and feasible fault handling path 2. Among them, the feasible fault handling path 1 opens the feedwater regulating valve B in parallel with the feedwater regulating valve A to restore the feedwater flow to the normal value. The real-time success probability of this path is 0.887, and the consequence of successful disposal is the full power operation of the reactor; the feasible fault handling path 2 directly isolates the steam generator (SG) on the side where the feedwater regulating valve A fails, and performs the reactor power reduction operation. The real-time success probability of this path is 0.757, and the consequence of successful disposal is the reactor power reduction operation. After that, the path success probability analysis results calculated by the PSA module and the disposal consequence evaluation results are combined to select a new target feasible fault handling path to guide the operator to perform subsequent abnormal disposal operations.

[0075] Furthermore, when the operator still cannot eliminate the equipment fault in the reactor system after executing all operations in the target feasible fault handling path, 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 fault anomalies in a reactor system provided by an embodiment of the present invention can determine a target feasible fault handling path from at least one feasible fault handling path 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, and guide an 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 safe operation of the reactor system.

[0077] Further, as Figure 1 and Figure 2 The specific implementation of the method shown in the embodiment provides a fault abnormality processing device for a reactor system, such as Figure 6 As shown, the device includes: an acquisition unit 31 , a recognition 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 of the reactor system based on the status monitoring signal.

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

[0081] The evaluation unit 34 may be used 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 determination 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 evaluation 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 used to update the state of the fault tree corresponding to the faulty device according to the state monitoring signal of the faulty device, so as to obtain an updated fault tree corresponding to the faulty device.

[0086] The first determination module may be used to determine a target event tree associated with the updated fault tree from each event tree corresponding to the reactor system.

[0087] The first determination module may also be used 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 each processing path of the reactor system based on each header event involved in the target event tree; analyze the consequence status corresponding to each processing path, and based on the consequence status, determine at least one feasible fault processing path from each processing path.

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

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

[0091] The screening module may be used 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 used 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 respectively determine the path success probability analysis result and the disposal consequence evaluation result 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; based on the change curve, determine the handling consequence information corresponding to the feasible fault handling path to be evaluated.

[0096] In some embodiments, the identification unit 32 may also be configured to update the at least one feasible fault processing path to obtain a new feasible fault processing 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 disposal 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, reference can be made 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 the embodiment also 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 A method for handling fault anomalies in a reactor system 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.), including 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 also 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 A method for handling fault anomalies in a reactor system is shown.

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

[0104] Those skilled in the art will appreciate 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 arrangements of components.

[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 above-mentioned physical device, and supports the operation of the information processing program and other software and / or programs. The network communication module is used to realize the communication between the components inside the storage medium, and the communication with other hardware and software in the information processing physical 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 can determine a target feasible fault handling path from at least one feasible fault handling path 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, 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 resolving reactor system fault anomalies, and ensuring safe operation of the reactor system.

[0108] Those skilled in the art will appreciate 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 necessary for implementing the present application. Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the description of the implementation scenario, or can be changed accordingly and located in one or more devices different from the present implementation scenario. The modules of the above-mentioned implementation scenario can be combined into one module, or can be further split into multiple submodules.

[0109] The above serial numbers of this application are only for description and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only a few specific implementation scenarios of this application, but this application is not limited to them, and any changes that can be thought of by technicians in this field should fall within the scope of protection of this application.

Claims

1. A method for handling abnormal faults in a reactor system, characterized in that: include: Obtain status monitoring signals of each device 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 equipment; Performing 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; 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 disposal consequence assessment result; According to the target feasible fault handling path, the operator is guided to handle the fault.

2. The method according to claim 1, characterized in that The step of analyzing at least one feasible fault processing path of the reactor system according to the identified faulty device comprises: According to the status monitoring signal of the faulty device, the status of the fault tree corresponding to the faulty device is updated 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; Based on the target event tree, at least one feasible fault handling path of the reactor system is determined.

3. The method according to claim 2, characterized in that The step of determining at least one feasible fault processing path of the reactor system based on the target event tree includes: Determine each processing path of the reactor system based on each header event involved in the target event tree; The consequence states corresponding to the various processing paths are analyzed, and based on the consequence states, at least one feasible fault processing path is determined from the various processing paths.

4. The method according to claim 1, characterized in that: The performing 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 probability of successful execution of the at least one feasible fault handling path based on a probability of successful operation of a related device involved in the at least one feasible fault handling path; Filter out the feasible fault handling path to be evaluated whose execution success probability meets the 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, and obtaining disposal consequence information corresponding to the feasible fault handling path to be evaluated; Based on the execution success probability and the disposal consequence information, the path success probability analysis result and the disposal consequence evaluation result are determined respectively.

5. The method according to claim 4, characterized in that The step of selecting the 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: Based on the execution success probability, sorting the at least one feasible fault handling path to obtain a sorting result; According to the sorting result, a feasible fault handling path to be evaluated is screened out from the at least one feasible fault handling path.

6. The method according to claim 4, characterized in that The 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 includes: Analyze the curve of changes of system parameters 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.

7. The method according to any one of claims 1 to 6, 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 processing path is updated to obtain a new feasible fault processing path; Based on the path success probability analysis result and the disposal consequence evaluation result corresponding to the new feasible fault handling path, re-determine a new target feasible fault handling path from the new feasible fault handling path; The operator is guided to perform fault handling according to the new target feasible fault handling path.

8. A reactor system fault anomaly handling device, characterized in that: include: An acquisition unit, used for acquiring 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 processing 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, and 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; The guiding unit is used to guide the operator to perform fault handling according to the target feasible fault handling path.

9. 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 7 is implemented.

10. An electronic device comprising a storage medium, a processor, and a computer program stored in the storage medium and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 7 is implemented.

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