Nuclear power plant operation state prediction method and system, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a nuclear power plant operation state prediction method and system, electronic equipment and a storage medium, and belongs to the technical field of nuclear power. The method comprises the following steps: receiving an analog control instruction; starting the operation simulation system; controlling the operation simulation system to perform target operation simulation through the simulation control instruction to obtain a simulated operation condition; the target operation comprises an operation mode switching operation or a parameter configuration operation; performing state prediction on the nuclear power unit according to the simulated operation condition to obtain an operation prediction state; the operation prediction state is used for representing that the nuclear power unit is normal or faulty under the simulated operation condition. According to the embodiment of the invention, technicians can know the unit operation state of the nuclear power unit after adjustment of operation mode switching, parameter configuration and the like in advance, the accuracy of operation state prediction is improved, technical support can be provided for the technicians, potential faults can be found in advance, the accident risk is effectively reduced, and the safety of the nuclear power unit is improved. And the operation safety and stability of the nuclear power unit are improved.

Description

Technical Field

[0001] The present application relates to the field of nuclear power technology, and in particular to a method, system, electronic equipment and storage medium for predicting the operating status of a nuclear power plant. Background Art

[0002] At present, during the operation of nuclear power plants, the technical specifications of nuclear power units are usually paper versions. When technical personnel perform adjustment operations such as switching operating modes and configuring parameters on nuclear power units, as well as making work plans and performing unit maintenance, if they want to know in advance the status of the nuclear power units after adjustments, they need to manually read the relevant operating restrictions recorded in the technical specifications or rely on historical experience to make judgments. In addition to being time-consuming, there is also the possibility of misjudgment, which may lead to incorrect adjustments to the nuclear power units and affect the operating safety of the nuclear power units.

[0003] Therefore, how to improve the accuracy of nuclear power plant operating status prediction has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The main purpose of the embodiments of the present application is to propose a method, system, electronic device and storage medium for predicting the operating status of a nuclear power plant, aiming to improve the accuracy of the prediction of the operating status of a nuclear power plant.

[0005] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present application proposes a method for predicting the operating status of a nuclear power plant, which is applied to a nuclear power plant, wherein the nuclear power plant includes a nuclear power unit, and the method includes:

[0006] Receiving a simulation control instruction; wherein the simulation control instruction includes an operation mode switching instruction or a parameter configuration instruction;

[0007] Start running the simulation system;

[0008] Controlling the operation simulation system to perform target operation simulation through the simulation control instruction to obtain a simulated operation condition; wherein the target operation includes an operation mode switching operation or a parameter configuration operation;

[0009] The state of the nuclear power unit is predicted according to the simulated operating condition to obtain an operation prediction state; wherein the operation prediction state is used to characterize whether the nuclear power unit is in a normal state or a fault state under the simulated operating condition.

[0010] In some embodiments, the step of performing state prediction on the nuclear power unit according to the simulated operating condition to obtain a predicted operating state includes:

[0011] Performing status diagnosis on the simulated operating condition according to preset operating specification data to obtain an operating status diagnosis result; wherein the operating specification data stipulates the normal state of the nuclear power unit;

[0012] The predicted operation state is generated based on the operation state diagnosis result.

[0013] In some embodiments, the performing status diagnosis on the simulated operating condition according to the preset operating specification data to obtain the operating status diagnosis result includes:

[0014] Filtering target specification data from the operation specification data according to the simulated operation condition;

[0015] extracting operating characteristic data from the simulated operating condition;

[0016] Fault diagnosis is performed on the operating characteristic data based on the target specification data to obtain the operating status diagnosis result.

[0017] In some embodiments, after predicting the state of the nuclear power unit according to the simulated operating condition to obtain the predicted operating state, the method further includes:

[0018] Determining an operation fault type based on the operation prediction state;

[0019] Determining a fault response measure corresponding to the operation fault type based on the operation specification data;

[0020] A target adjustment plan is generated according to the fault coping measures; wherein the target adjustment plan is used to overcome the operational fault.

[0021] In some embodiments, when the simulation control instruction is the operation mode switching instruction, the target operation is the operation mode switching operation; and controlling the operation simulation system to perform target operation simulation through the simulation control instruction to obtain a simulated operation condition includes:

[0022] determining a target operating mode based on the operating mode switching instruction;

[0023] determining a target operating parameter based on the target operating mode;

[0024] The mode of the nuclear power unit is switched on the operation simulation system based on the target operation parameters to obtain the simulated operation condition.

[0025] In some embodiments, when the simulation control instruction is the parameter configuration instruction, the target operation is the parameter configuration operation; and controlling the operation simulation system to perform target operation simulation through the simulation control instruction to obtain a simulated operation condition includes:

[0026] Acquire current configuration information of the nuclear power unit; wherein the current configuration information includes current parameters and parameter mapping relationships;

[0027] Determining target configuration information based on the parameter configuration instruction;

[0028] Adjust the current parameters based on the parameter mapping relationship and the target configuration information to obtain simulation configuration information;

[0029] The parameters of the nuclear power unit are configured on the operation simulation system according to the simulation configuration information to obtain the simulated operation condition.

[0030] In some embodiments, the step of adjusting the current parameters based on the parameter mapping relationship and the target configuration information to obtain simulation configuration information includes:

[0031] Determining a target modification parameter from the target configuration information; wherein the target modification parameter includes a parameter name and a parameter value;

[0032] Determining a target mapping relationship from the parameter mapping relationships based on the parameter name;

[0033] The current parameter is modified based on the target mapping relationship and the parameter value to obtain the simulation configuration information.

[0034] To achieve the above-mentioned purpose, a second aspect of an embodiment of the present application proposes a nuclear power plant operation status prediction system, the system comprising:

[0035] An instruction receiving module, used for receiving a simulation control instruction; wherein the simulation control instruction includes an operation mode switching instruction or a parameter configuration instruction;

[0036] A simulation system startup module is used to start and run the simulation system;

[0037] An operation simulation module, used to control the operation simulation system to perform target operation simulation through the simulation control instruction to obtain a simulated operation condition; wherein the target operation includes an operation mode switching operation or a parameter configuration operation;

[0038] The state prediction module is used to predict the state of the nuclear power unit according to the simulated operating conditions to obtain an operation prediction state; wherein the operation prediction state is used to characterize whether the nuclear power unit is in a normal state or a fault state under the simulated operating conditions.

[0039] To achieve the above objectives, a third aspect of an embodiment of the present application proposes an electronic device, which includes a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the method described in the first aspect is implemented.

[0040] To achieve the above-mentioned purpose, the fourth aspect of an embodiment of the present application proposes a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described in the first aspect is implemented.

[0041] The method, system, electronic device and storage medium for predicting the operating status of a nuclear power plant proposed in the present application receive simulation control instructions; wherein the simulation control instructions include operating mode switching instructions or parameter configuration instructions; start the operating simulation system; control the operating simulation system through the simulation control instructions to simulate the target operation to obtain the simulated operating condition; wherein the target operation includes the operating mode switching operation or the parameter configuration operation; predict the state of the nuclear power unit according to the simulated operating condition to obtain the predicted operating state; wherein the predicted operating state is used to characterize whether the nuclear power unit is in a normal state or a faulty state under the simulated operating condition. The embodiments of the present application enable technical personnel to understand in advance the operating state of the nuclear power unit after the operating mode switching, parameter configuration and other adjustments, thereby improving the accuracy of the prediction of the operating state of the nuclear power plant. At the same time, it can provide technical support for technical personnel, discover potential faults in advance, effectively reduce the risk of accidents, and improve the safety and stability of the operation of the nuclear power unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a flow chart of a method for predicting the operating status of a nuclear power plant provided in an embodiment of the present application;

[0043] Figure 2 yes Figure 1 A flowchart of step S103 in FIG.

[0044] Figure 3 yes Figure 1 Another flow chart of step S103 in FIG. 1 ;

[0045] Figure 4 yes Figure 3 Flow chart of step S303 in FIG.

[0046] Figure 5 yes Figure 1 Flow chart of step S104 in FIG.

[0047] Figure 6 yes Figure 5 Flow chart of step S501 in FIG.

[0048] Figure 7 is a flow chart of a method for predicting the operating status of a nuclear power plant provided by another embodiment of the present application;

[0049] Figure 8 It is a structural schematic diagram of a nuclear power plant operating status prediction system provided in an embodiment of the present application;

[0050] Fig. 9 It is a schematic diagram of the hardware structure of the electronic device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0052] It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0054] First, some nouns involved in this application are analyzed:

[0055] A nuclear power plant, also known as a nuclear power plant or a nuclear power plant, is a power plant that uses nuclear energy to generate electricity. It converts the energy released by nuclear fission or fusion reactions into heat energy, and then uses this heat energy to generate steam, which drives the turbine to rotate and then drives the generator to generate electricity.

[0056] Technical specifications, also known as "technical specifications for nuclear power plants" or "technical specifications for nuclear power plant operation", are technical and management documents that must be followed during the operation of nuclear power plants. The document specifies in detail the safety limits, limited safety system settings, limited control settings, operating restrictions, supervision requirements, design features and management controls of nuclear power plants. The main purpose of the technical specifications is to ensure that nuclear power plants can meet design requirements during operation and protect the safety of the public and the environment.

[0057] During the construction and operation of nuclear power plants, the various provisions in the technical specifications must be followed to ensure the safe and efficient operation of the power plant. The technical specifications provide comprehensive technical and management guidance for the operation of nuclear power plants, helping power plants avoid abnormal operating conditions that may lead to accidents and mitigate the consequences even if accidents occur.

[0058] At present, during the operation of nuclear power plants, the technical specifications of nuclear power units are usually paper versions. When technical personnel perform adjustment operations such as switching operating modes and configuring parameters on nuclear power units, as well as making work plans and performing unit maintenance, if they want to know in advance the status of the nuclear power units after adjustments, they need to manually read the relevant operating restrictions recorded in the technical specifications or rely on historical experience to make judgments. In addition to being time-consuming, there is also the possibility of misjudgment, which may lead to incorrect adjustments to the nuclear power units and affect the operating safety of the nuclear power units.

[0059] Based on this, the embodiments of the present application provide a method, system, electronic device and storage medium for predicting the operating status of a nuclear power plant, aiming to improve the accuracy of predicting the operating status of a nuclear power plant.

[0060] The nuclear power plant operating status prediction method, system, electronic device and storage medium provided in the embodiments of the present application are specifically described through the following embodiments. First, the nuclear power plant operating status prediction method in the embodiments of the present application is described.

[0061] In some embodiments, a nuclear power plant operating status prediction method is applied to a nuclear power plant, which includes multiple nuclear power units. The nuclear power plant operating status prediction method can be used to simulate the nuclear power units to determine whether the nuclear power units are in a normal state or a faulty state under the simulated operating conditions, thereby assisting technical personnel to implement adjustment operations, work plan formulation, unit maintenance and other behaviors on the nuclear power units, thereby ensuring the safe operation of the nuclear power units.

[0062] Figure 1 is an optional flow chart of the method for predicting the operating status of a nuclear power plant provided in an embodiment of the present application. Figure 1 The method may include but is not limited to steps S101 to S104.

[0063] Step S101, receiving a simulation control instruction; wherein the simulation control instruction includes an operation mode switching instruction or a parameter configuration instruction;

[0064] Step S102, start running simulation system;

[0065] Step S103, controlling the operation simulation system to perform target operation simulation through simulation control instructions to obtain simulated operation conditions; wherein the target operation includes an operation mode switching operation or a parameter configuration operation;

[0066] Step S104, predicting the state of the nuclear power unit according to the simulated operating conditions to obtain an operating prediction state; wherein the operating prediction state is used to characterize whether the nuclear power unit is in a normal state or a fault state under the simulated operating conditions.

[0067] Steps S101 to S104 shown in the embodiment of the present application are performed by receiving simulation control instructions; wherein the simulation control instructions include operation mode switching instructions or parameter configuration instructions; starting the operation simulation system; controlling the operation simulation system through the simulation control instructions to simulate the target operation and obtain the simulated operation condition; wherein the target operation includes the operation mode switching operation or the parameter configuration operation; performing state prediction on the nuclear power unit according to the simulated operation condition and obtaining the operation prediction state; wherein the operation prediction state is used to characterize that the nuclear power unit is in a normal state or a fault state under the simulated operation condition. The embodiment of the present application enables the technicians to understand in advance the operation state of the nuclear power unit after the operation mode switching, parameter configuration and other adjustments, improves the accuracy of the operation state prediction of the nuclear power plant, and can provide technical support for the technicians, discover potential faults in advance, effectively reduce the risk of accidents, and improve the safety and stability of the operation of the nuclear power unit.

[0068] In step S101 of some embodiments, the simulation control instruction is an instruction manually input by a technician, including but not limited to an operation mode switching instruction and a parameter configuration instruction;

[0069] The operation mode switching instruction is to switch the operation mode of the nuclear power plant from the current operation mode to the target operation mode;

[0070] It should be noted that the current operation mode and the target operation mode are both pre-set, and are set by the technicians based on the preset operation specification data, i.e., the preset operation specification data. Specifically, each operation mode has a corresponding nuclear power unit state, so before switching the operation mode, it is necessary to first determine whether the state of the nuclear power unit in the current operation mode will cause a fault in the target operation mode. It is necessary to predict the operation state of the nuclear power plant before switching the operation mode to avoid faults caused by directly adjusting the operation mode, reduce the risk of accidents, and improve the safety and stability of the operation of the nuclear power unit.

[0071] Parameter configuration instructions are used to configure or modify certain parameters, including but not limited to operating parameters and status parameters;

[0072] Specifically, the operating parameters may be the rated power, output voltage, output current, and rotation speed of the generator, the pressure and temperature of the nuclear reactor, the inlet and outlet flow and temperature of the cooling system, and other parameters;

[0073] The status parameters may include the generator operation status (on / off), the nuclear reactor cooling system status (on / off), the nuclear reactor fuel rod status (intact / worn), the safety system operation status (normal / faulty), and the auxiliary equipment status (pressure vessel, cooling system, etc.).

[0074] It should be noted that the specific contents of the operating parameters and status parameters need to be set according to the actual nuclear power plant operation scenario, and are not limited in the embodiments of the present application.

[0075] It is understandable that each operating mode has corresponding safety thresholds, operating restrictions and other parameters of the nuclear power unit. Before configuring the parameters, it is necessary to determine whether a fault will occur after modifying the parameters of the nuclear power unit in the current operating mode. Therefore, it is necessary to predict the operating status of the nuclear power plant before configuring the parameters to avoid faults caused by direct parameter configuration, reduce accident risks, and improve the safety and stability of the operation of the nuclear power unit.

[0076] In step S102 of some embodiments, after receiving the simulation control instruction, the simulation system is started to realize simulation rather than actually controlling the nuclear power unit, which can reduce the risk to the actual nuclear power unit and ensure the safety of equipment and personnel. Control in the simulation system can predict various possible situations in advance and conduct rehearsals, provide technical support for technical personnel, make more accurate response measures in actual operations, and improve emergency response capabilities. In addition, simulation control can also save costs and time, provide an effective reference basis for actual operations, and improve the stability and reliability of nuclear power units.

[0077] In some embodiments, when the simulation control instruction is an operation mode switching instruction, the target operation corresponds to an operation mode switching operation, which is specifically described in the following embodiments.

[0078] See also Figure 2 In some embodiments, step S103 may include but is not limited to steps S201 to S203:

[0079] Step S201, determining a target operating mode based on an operating mode switching instruction;

[0080] Step S202, determining target operating parameters based on the target operating mode;

[0081] Step S203, switching the mode of the nuclear power unit on the operation simulation system based on the target operation parameters to obtain a simulated operation condition.

[0082] In the steps S201 to S203 shown in the embodiment of the present application, the target operation mode is determined based on the operation mode switching instruction; the target operation parameters are determined based on the target operation mode; and the mode of the nuclear power unit is switched on the operation simulation system based on the target operation parameters to obtain the simulated operation condition. This supports the technicians to quickly switch the operation mode by manually adjusting the operation mode, control the nuclear power unit to perform the corresponding test on the operation simulation system, and facilitate the discovery of the design problems of the nuclear power unit and timely modification, thereby improving the controllability and reliability of the system operation.

[0083] It should be noted that the target operating mode technicians are based on preset operating specification data, that is, the preset operating specification data are pre-set, wherein the target operating mode records various operating parameters of the nuclear power unit, that is, the target operating parameters, and the operating mode switching is achieved by changing the operating parameters of the nuclear power unit.

[0084] Therefore, the technician only needs to determine the target operation mode to be simulated according to the provided mode selection and form the corresponding operation mode switching instruction.

[0085] It is understandable that, due to uncertainty about whether the target operation mode is feasible in the actual current operation state of the nuclear power unit and whether there will be certain accident risks, the operation state of the nuclear power unit cannot be switched rashly. Therefore, it is necessary to conduct a rehearsal on the operation simulation system to obtain simulated operation conditions, so as to provide technical support for technicians. This can avoid failures caused by direct adjustment of the operation mode, reduce accident risks, and improve the safety and stability of nuclear power unit operation.

[0086] In some embodiments, when the simulation control instruction is a parameter configuration instruction, the target operation corresponds to a parameter configuration operation, which is specifically described in the following embodiments.

[0087] See also Figure 3 In some embodiments, step S103 may also include but is not limited to steps S301 to S304:

[0088] Step S301, obtaining current configuration information of a nuclear power unit; wherein the current configuration information includes current parameters and parameter mapping relationships;

[0089] Step S302, determining target configuration information based on the parameter configuration instruction;

[0090] Step S303, adjusting the current parameters based on the parameter mapping relationship and the target configuration information to obtain simulation configuration information;

[0091] Step S304, configuring parameters of the nuclear power unit on the operation simulation system according to the simulation configuration information to obtain simulated operation conditions.

[0092] Steps S301 to S304 shown in the embodiment of the present application are obtained by obtaining the current configuration information of the nuclear power unit; wherein the current configuration information includes the current parameters and the parameter mapping relationship; determining the target configuration information based on the parameter configuration instruction; adjusting the current parameters based on the parameter mapping relationship and the target configuration information to obtain the simulation configuration information; and configuring the parameters of the nuclear power unit on the running simulation system according to the simulation configuration information to obtain the simulated operating conditions. This supports the technicians to manually modify the parameters and control the nuclear power unit to perform the corresponding tests on the running simulation system, which is convenient for discovering the design problems of the nuclear power unit and modifying them in time, and improving the controllability and reliability of the system operation.

[0093] For example,

[0094] In one example, certain operating parameters of a nuclear power unit are modified, such as the upper threshold of the output voltage and the upper threshold of the output current, so as to increase the output voltage and current of the nuclear power unit to determine whether the components of the nuclear power unit will fail under this operating state.

[0095] In another example, certain status parameters of the nuclear power unit are modified, such as modifying the operating status of the generator set, modifying the status of the nuclear reactor cooling system, etc., to change the operating status of the nuclear power unit to determine whether the components of the nuclear power unit will fail under this operating status.

[0096] It is understandable that the operating parameters of the nuclear power unit cannot be directly modified rashly due to uncertainty about whether the target configuration information is feasible in the current actual operating state of the nuclear power unit and whether there will be certain accident risks. Therefore, it is necessary to conduct a rehearsal on the operation simulation system to obtain simulated operating conditions, so as to provide technical support for technicians. This can avoid malfunctions caused by directly modifying the operating parameters of the nuclear power unit, reduce accident risks, and improve the safety and stability of the operation of the nuclear power unit.

[0097] It is understandable that, since the parameters of the nuclear power unit are to be modified, the current configuration information of the nuclear power unit needs to be obtained first;

[0098] Specifically, the current configuration information is recorded in the storage space of the actual operating system of the nuclear power plant, specifically an interface list file (XML file). The interface list file records the parameter name and initial value of the current parameter, as well as the parameter mapping relationship, which is used to indicate which parameter value a specific parameter name corresponds to, thereby realizing the corresponding relationship.

[0099] In some embodiments, after determining that a parameter needs to be modified, the technician will obtain a target configuration information and form a corresponding parameter configuration instruction.

[0100] Therefore, after obtaining the current configuration information and the target configuration information, the current parameter information is adjusted based on the target configuration information to obtain the adjusted simulation configuration information, which is used to configure the parameters of the nuclear power unit on the operation simulation system to obtain the simulated operating conditions, which is specifically explained in the following embodiments.

[0101] See also Figure 4 In some embodiments, step S303 may include but is not limited to steps S401 to S403:

[0102] Step S401, determining a target modification parameter from target configuration information; wherein the target modification parameter includes a parameter name and a parameter value;

[0103] Step S402, determining a target mapping relationship from the parameter mapping relationship based on the parameter name;

[0104] Step S403: modify the current parameters based on the target mapping relationship and the parameter values ​​to obtain simulation configuration information.

[0105] Steps S401 to S403 shown in the embodiment of the present application are to determine the target modification parameters from the target configuration information; wherein the target modification parameters include parameter names and parameter values; determine the target mapping relationship from the parameter mapping relationship based on the parameter name; and modify the current parameters based on the target mapping relationship and the parameter values ​​to obtain simulation configuration information. This helps to accurately identify and locate the parameters that need to be optimized or adjusted, and then accurately modify the parameters to form simulation configuration information, thereby improving the efficiency and accuracy of parameter configuration.

[0106] It can be understood that after determining the parameter name and parameter value from the target configuration information, the target mapping relationship can be determined from the parameter mapping relationship based on the parameter name, so that the part of the current parameter that needs to be modified can be located, and the current parameter can be modified based on the target mapping relationship and parameter value to obtain the simulation configuration information.

[0107] Specifically, the parameter value in the current parameter is modified into the parameter value in the target modification parameter to realize the parameter configuration.

[0108] It should be noted that the parameter name and parameter value in the target modification parameter are in a corresponding relationship. If the target modification parameter records multiple parameters that need to be modified, there are multiple pairs of parameter names and parameter values ​​that are in a corresponding relationship with each other. Then, for each parameter name, the corresponding target mapping relationship is determined, thereby obtaining multiple target mapping relationships. Then, the parameter of each current parameter is modified according to each target mapping relationship.

[0109] See also Figure 5In some embodiments, step S104 may also include but is not limited to steps S501 to S502:

[0110] Step S501, performing status diagnosis on the simulated operating condition according to preset operating specification data to obtain an operating status diagnosis result; wherein the operating specification data specifies the normal state of the nuclear power unit;

[0111] Step S502: Generate an operation prediction state based on the operation state diagnosis result.

[0112] Steps S501 to S502 shown in the embodiment of the present application perform status diagnosis on the simulated operating conditions according to preset operating specification data to obtain operating status diagnosis results, and generate operating prediction states based on the operating status diagnosis results, which can diagnose the state of the nuclear power unit under the simulated operating conditions, thereby helping technical personnel to discover potential problems in advance and make corresponding modifications and adjustments in a timely manner, avoiding failures caused by direct adjustments to the nuclear power unit, reducing accident risks, and improving the safety and stability of the operation of the nuclear power unit.

[0113] It should be noted that the operating specification data, i.e., the technical specification records the temperature threshold, pressure threshold, generator temperature threshold, output voltage threshold, output current threshold and other parameters of the nuclear reactor under the normal state (preset target operating state) and fault state (preset abnormal operating state) of the nuclear power unit, forming a plurality of target specification data corresponding to different operating states. Therefore, it is necessary to filter out the target specification data from the operating specification data according to the simulated operating conditions, and then make an accurate state diagnosis, which is specifically explained by the following embodiments.

[0114] Among them, the preset target operating state and abnormal operating state need to be determined according to the actual operating conditions of the nuclear power plant, but are not limited thereto.

[0115] See also Figure 6 In some embodiments, step S501 includes but is not limited to steps S601 to S603:

[0116] Step S601, filtering out target specification data from the operation specification data according to the simulated operation condition;

[0117] Step S602, extracting operation characteristic data from the simulated operation condition;

[0118] Step S603, performing fault diagnosis on the operation characteristic data based on the target specification data to obtain an operation status diagnosis result.

[0119] Steps S601 to S603 shown in the embodiment of the present application, by screening out target specification data from the operation specification data according to the simulated operation conditions, this helps to narrow the scope of state diagnosis and improve the pertinence and accuracy of diagnosis; then extract the operation characteristic data reflecting the operation state of the nuclear power unit from the simulated operation conditions, and then perform fault diagnosis on the operation characteristic data based on the target specification data to obtain the operation state diagnosis result. Through reasoning and judgment, the operation state of the nuclear power unit under the simulated operation conditions can be obtained, and potential faults or anomalies can be identified, which can enable technicians to understand in advance the operation state of the nuclear power unit after the operation mode switching, parameter configuration and other adjustments, and provide technical support for the technicians' related operations.

[0120] In step S601 of some embodiments, since there are multiple target specification data corresponding to different operating states in the required operating specification data, it is necessary to filter out the target specification data from the operating specification data according to the simulated operating conditions, and then make an accurate state diagnosis to improve the pertinence and accuracy of the diagnosis.

[0121] It is understandable that the target specification data records the temperature threshold and pressure threshold of the nuclear reactor, the temperature threshold of the generator, the output voltage threshold, the output current threshold and other threshold parameters under the normal operation of the nuclear power unit. Therefore, it is necessary to extract the operating characteristic data required for the above judgment from the simulated operating conditions, for example, under the simulated operating conditions, the temperature data and pressure data of the nuclear reactor, the temperature data, output voltage data and output current data of the generator, to form a plurality of operating characteristic parameters.

[0122] Then, multiple operating characteristic data are diagnosed according to multiple threshold parameters recorded in the target specification data to determine whether the nuclear power unit will have an operating failure under the simulated operating conditions and obtain the operating status diagnosis result.

[0123] In some embodiments, running the predicted state includes two results;

[0124] The first is to characterize that the nuclear power unit is in a normal state under the simulated operating conditions, so that the technicians can actually execute corresponding control instructions on the nuclear power unit to change the actual operating conditions of the nuclear power unit.

[0125] The second is to characterize that the nuclear power unit is in a fault state under simulated operating conditions. In this case, the technical personnel cannot actually execute the corresponding control instructions on the nuclear power unit, otherwise it will cause operating failures and pose a danger.

[0126] In some possible embodiments, when the operation prediction state indicates that the nuclear power unit is in a fault state under simulated operating conditions, a corresponding adjustment plan can be generated based on the operation prediction state to guide technical personnel to make adjustments to overcome the operation failure.

[0127] See also Figure 7 In some embodiments, after step S104, the nuclear power plant operation status prediction method may include but is not limited to steps S701 to S703:

[0128] Step S701, determining the operation fault type based on the operation prediction state;

[0129] Step S702, determining a fault response measure corresponding to the operation fault type based on the operation specification data;

[0130] Step S703, generating a target adjustment plan according to the fault coping measures; wherein the target adjustment plan is used to overcome the operation fault.

[0131] Steps S701 to S703 shown in the embodiment of the present application can effectively infer the cause of the failure by determining the type of operation failure based on the operation prediction state, and generate a target adjustment plan for overcoming the operation failure based on the fault response measures, thereby providing adjustment directions for technical personnel and providing a basis for the maintenance and management of nuclear power units.

[0132] In step S701 of some embodiments, when the operation prediction state characterizes that the nuclear power unit is in a fault state under the simulated operation condition, the operation fault type and the fault level are determined based on the target specification data;

[0133] In step S702 of some embodiments, a fault coping measure corresponding to the operation fault type is determined based on the target operation specification in the operation specification data.

[0134] Specifically, in addition to recording threshold parameters such as the nuclear reactor temperature threshold, pressure threshold, generator temperature threshold, output voltage threshold, and output current threshold under normal operating conditions of the nuclear power unit, the target specification data also records corresponding fault response measures.

[0135] Correspondingly, fault diagnosis is performed based on the target specification data, and the obtained operating status diagnosis results will include which parameters are within the threshold and which parameters exceed the threshold; if there are parameters exceeding the threshold, it means that an operating fault has occurred, and the fault response measures corresponding to the operating fault type can be determined from the target operating specification in the operating specification data.

[0136] In step S703 of some embodiments, a target adjustment plan for overcoming the operational fault is generated based on the fault response measures. Specifically, it may be to adjust certain parameters under simulated operating conditions, or to switch to a preset operating mode, so as to provide adjustment direction for technicians and provide a basis for the maintenance and management of nuclear power units.

[0137] For example, the operation prediction state characterizes that the nuclear power unit is in a fault state under the simulated operating conditions. The operation fault type is determined to be the first fault type from the operation prediction state, corresponding to a nuclear reactor high temperature fault. It is then known that the temperature of the nuclear reactor exceeds the nuclear reactor temperature threshold, so the corresponding fault response measure is to increase the water intake of the cooling system to reduce the temperature of the nuclear reactor.

[0138] Based on this, the target adjustment plan is: on the basis of simulated operating conditions, it is necessary to increase the water inlet threshold of the cooling system so that the nuclear power unit can operate safely under simulated operating conditions.

[0139] In some embodiments, after step S104, the method further includes but is not limited to:

[0140] The operation prediction status is displayed on the interactive interface to prompt the technicians with the status prediction results.

[0141] If the operation prediction status indicates that the nuclear power unit is in a fault state under the simulated operation conditions, the operation fault type and the target adjustment plan will be displayed simultaneously.

[0142] It should be noted that the interactive interface can be the front-end display interface of the nuclear power plant operation status prediction system, which can accept control instructions input by technical personnel and display the operation prediction status.

[0143] The method for predicting the operating status of a nuclear power plant provided in the embodiment of the present application provides a parameter simulation operating environment for technicians, uses simulation control instructions and simulation operating systems to simulate target operations, thereby obtaining simulated operating conditions, predicting the status of the nuclear power unit according to the simulated operating conditions, and finally obtaining the operating status of the nuclear power unit under the simulated operating conditions. It allows technicians to understand in advance the operating status of the nuclear power unit after the switching of the operating mode, parameter configuration, and other adjustments, thereby improving the accuracy of the prediction of the operating status of the nuclear power plant.

[0144] In addition, it can also help technicians perform status diagnosis under simulated operating conditions of nuclear power units and help technicians discover potential problems, thereby effectively avoiding the risk of failure that may be caused by directly adjusting the nuclear power units and improving the safety and stability of the operation of nuclear power units.

[0145] In addition, this method also has the ability to infer the cause of the failure and generate a target adjustment plan, which provides technicians with a clear adjustment direction and provides a basis for the maintenance and management of nuclear power units.

[0146] See also Figure 8 The embodiment of the present application also provides a nuclear power plant operation status prediction system, which can implement the above-mentioned nuclear power plant operation status prediction method, and the device includes:

[0147] The instruction receiving module 801 is used to receive the simulation control instruction; wherein the simulation control instruction includes an operation mode switching instruction or a parameter configuration instruction;

[0148] The simulation system startup module 802 is used to start and run the simulation system;

[0149] The operation simulation module 803 is used to control the operation simulation system to perform target operation simulation through simulation control instructions to obtain simulated operation conditions; wherein the target operation includes an operation mode switching operation or a parameter configuration operation;

[0150] The state prediction module 804 is used to predict the state of the nuclear power unit according to the simulated operating conditions to obtain the operation prediction state; wherein the operation prediction state is used to characterize whether the nuclear power unit is in a normal state or a fault state under the simulated operating conditions.

[0151] The specific implementation of the nuclear power plant operating status prediction system is basically the same as the specific implementation of the above-mentioned nuclear power plant operating status prediction method, and will not be repeated here.

[0152] The embodiment of the present application also provides an electronic device, the electronic device includes a memory and a processor, the memory stores a computer program, and the processor implements the above-mentioned nuclear power plant operation status prediction method when executing the computer program. The electronic device can be any intelligent terminal including a tablet computer, a car computer, etc.

[0153] See also Fig. 9 , Fig. 9 The hardware structure of an electronic device of another embodiment is illustrated, and the electronic device includes:

[0154] The processor 901 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of the present application;

[0155] The memory 902 can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 902 can store an operating system and other application programs. When the technical solution provided in the embodiment of this specification is implemented by software or firmware, the relevant program code is stored in the memory 902, and the processor 901 calls and executes the nuclear power plant operation status prediction method of the embodiment of this application;

[0156] Input / output interface 903, used to implement information input and output;

[0157] Communication interface 904, used to realize communication interaction between the device and other devices, which can be realized through wired mode (such as USB, network cable, etc.) or wireless mode (such as mobile network, WI FI, Bluetooth, etc.);

[0158] A bus 905 that transmits information between the various components of the device (e.g., the processor 901, the memory 902, the input / output interface 903, and the communication interface 904);

[0159] The processor 901 , the memory 902 , the input / output interface 903 and the communication interface 904 are connected to each other in communication within the device via a bus 905 .

[0160] An embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the above-mentioned nuclear power plant operating status prediction method is implemented.

[0161] The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely disposed relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0162] The method, system, electronic device and storage medium for predicting the operation status of a nuclear power plant provided in the embodiments of the present application receive simulation control instructions; wherein the simulation control instructions include operation mode switching instructions or parameter configuration instructions; start the operation simulation system; control the operation simulation system through the simulation control instructions to simulate the target operation to obtain the simulated operation condition; wherein the target operation includes the operation mode switching operation or the parameter configuration operation; predict the state of the nuclear power unit according to the simulated operation condition to obtain the operation prediction state; wherein the operation prediction state is used to characterize whether the nuclear power unit is in a normal state or a fault state under the simulated operation condition. The embodiments of the present application enable technical personnel to understand in advance the operation status of the nuclear power unit after the operation mode switching, parameter configuration and other adjustments, provide technical support for technical personnel, and improve the accuracy of the prediction of the operation status of the nuclear power plant.

[0163] The embodiments described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0164] Those skilled in the art will appreciate that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0165] The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0166] Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.

[0167] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0168] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0169] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. The mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0170] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0171] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0172] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including multiple instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), disk or optical disk and other media that can store programs.

[0173] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. A method for predicting the operating status of a nuclear power plant, It is characterized in that Applied to a nuclear power plant, the nuclear power plant includes a nuclear power unit, and the method includes: Receiving a simulation control instruction; wherein the simulation control instruction includes an operation mode switching instruction or a parameter configuration instruction; Start running the simulation system; Controlling the operation simulation system to perform target operation simulation through the simulation control instruction to obtain a simulated operation condition; wherein the target operation includes an operation mode switching operation or a parameter configuration operation; The state of the nuclear power unit is predicted according to the simulated operating condition to obtain an operation prediction state; wherein the operation prediction state is used to characterize whether the nuclear power unit is in a normal state or a fault state under the simulated operating condition.

2. The method according to claim 1, It is characterized in that The step of predicting the state of the nuclear power unit according to the simulated operating condition to obtain a predicted operating state includes: Performing status diagnosis on the simulated operating condition according to preset operating specification data to obtain an operating status diagnosis result; wherein the operating specification data stipulates the normal state of the nuclear power unit; The predicted operation state is generated based on the operation state diagnosis result.

3. The method according to claim 2, It is characterized in that The state diagnosis of the simulated operating condition is performed according to the preset operating specification data to obtain the operating state diagnosis result, including: Filtering target specification data from the operation specification data according to the simulated operation condition; extracting operating characteristic data from the simulated operating condition; Fault diagnosis is performed on the operating characteristic data based on the target specification data to obtain the operating status diagnosis result.

4. The method according to claim 2, It is characterized in that After predicting the state of the nuclear power unit according to the simulated operating condition to obtain the predicted operating state, the method further includes: Determining an operation fault type based on the operation prediction state; Determining a fault response measure corresponding to the operation fault type based on the operation specification data; A target adjustment plan is generated according to the fault coping measures; wherein the target adjustment plan is used to overcome the operational fault.

5. The method according to claim 1, It is characterized in that In the case where the simulation control instruction is the operation mode switching instruction, the target operation is the operation mode switching operation; and controlling the operation simulation system to simulate the target operation through the simulation control instruction to obtain a simulated operation condition includes: determining a target operating mode based on the operating mode switching instruction; determining a target operating parameter based on the target operating mode; The mode of the nuclear power unit is switched on the operation simulation system based on the target operation parameters to obtain the simulated operation condition.

6. The method according to claim 1, It is characterized in that In the case where the simulation control instruction is the parameter configuration instruction, the target operation is the parameter configuration operation; and controlling the operation simulation system to perform target operation simulation through the simulation control instruction to obtain a simulated operation condition includes: Acquire current configuration information of the nuclear power unit; wherein the current configuration information includes current parameters and parameter mapping relationships; Determining target configuration information based on the parameter configuration instruction; Adjust the current parameters based on the parameter mapping relationship and the target configuration information to obtain simulation configuration information; The parameters of the nuclear power unit are configured on the operation simulation system according to the simulation configuration information to obtain the simulated operation condition.

7. The method according to claim 6, It is characterized in that The step of adjusting the current parameters based on the parameter mapping relationship and the target configuration information to obtain simulation configuration information includes: Determining a target modification parameter from the target configuration information; wherein the target modification parameter includes a parameter name and a parameter value; Determining a target mapping relationship from the parameter mapping relationships based on the parameter name; The current parameter is modified based on the target mapping relationship and the parameter value to obtain the simulation configuration information.

8. A nuclear power plant operation status prediction system, It is characterized in that The system comprises: An instruction receiving module, used for receiving a simulation control instruction; wherein the simulation control instruction includes an operation mode switching instruction or a parameter configuration instruction; A simulation system startup module is used to start and run the simulation system; An operation simulation module, used to control the operation simulation system to perform target operation simulation through the simulation control instruction to obtain a simulated operation condition; wherein the target operation includes an operation mode switching operation or a parameter configuration operation; The state prediction module is used to predict the state of the nuclear power unit according to the simulated operating conditions to obtain an operation prediction state; wherein the operation prediction state is used to characterize whether the nuclear power unit is in a normal state or a fault state under the simulated operating conditions.

9. An electronic device, It is characterized in that The electronic device comprises a memory and a processor, the memory stores a computer program, and the processor implements the method according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium storing a computer program. It is 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.

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