GIS combined electric appliance fault diagnosis method, device, equipment, medium and product

Abstract

The invention relates to a GIS combined electric appliance fault diagnosis method, device and equipment, a medium and a product. The method comprises the following steps: acquiring monitoring point information monitored by a sensor array at each monitoring point in a gas insulated switchgear (GIS); wherein the information of each monitoring point comprises the actual shell temperature and the external environment information at the monitoring point; each monitoring point is located at the joint of a switch contact and a wire in the GIS combined electric appliance; determining the health state of the GIS composite apparatus according to the monitoring point information of each monitoring point; and performing fault diagnosis on the GIS composite apparatus according to the health state. By adopting the method, the temperature and the environment of the GIS combined electric appliance can be accurately monitored, and the fault of the GIS combined electric appliance can be accurately diagnosed.

Description

Technical Field

[0001] The present application relates to the technical field of equipment monitoring, and in particular to a fault diagnosis method, device, equipment, medium and product for a GIS combination electrical appliance. Background Art

[0002] In the power transmission and distribution system, Gas Insulated Switchgear (GIS) switchgear is widely used not only in the high voltage and ultra-high voltage fields, but also in the ultra-high voltage field. However, due to long-term operation, material aging, installation defects and other reasons, GIS switchgear has discharge, body damage, insulator failure, overheating, insulation rod failure and transmission system failure. If the heat of GIS equipment is not detected and handled in time, it may cause equipment insulation, poor contact, fire, etc. and trigger a series of serious electrical accidents.

[0003] At present, the temperature monitoring of GIS combination electrical appliances mainly adopts external infrared temperature measurement method and internal fiber grating temperature measurement method. However, the measurement accuracy of infrared temperature measurement method is affected by many factors, such as weather, which leads to errors in temperature monitoring, thus affecting the accuracy of fault diagnosis of GIS combination electrical appliances. Summary of the invention

[0004] Based on this, it is necessary to provide a GIS combination electrical appliance fault diagnosis method, device, equipment, medium and product to address the above technical problems, which can accurately monitor the temperature and environment of the GIS combination electrical appliance and accurately diagnose the fault of the GIS combination electrical appliance.

[0005] In a first aspect, the present application provides a fault diagnosis method for a GIS combination electrical appliance, comprising:

[0006] Acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS switchgear;

[0007] Determining the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point;

[0008] According to the health status, fault diagnosis is performed on the GIS combination electrical appliance.

[0009] In one embodiment, determining the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point includes:

[0010] Determine the global temperature state of the GIS combination electrical appliance according to the actual shell temperature at each monitoring point and external environmental information;

[0011] Determine the global operating state of the GIS combination electrical appliance according to the external environment information at each monitoring point;

[0012] The health state of the GIS combination appliance is determined according to the global temperature state and the global operation state.

[0013] In one embodiment, determining the global temperature state of the GIS combination electrical appliance according to the actual shell temperature at each monitoring point and external environment information includes:

[0014] Determine the ideal temperature information of the GIS combination electrical appliance in the environment according to the external environment information at each monitoring point and the attribute information of the GIS combination electrical appliance;

[0015] According to the actual shell temperature at each monitoring point, an actual temperature distribution model of the GIS combination electrical appliance is constructed;

[0016] The global temperature state of the GIS combination electrical appliance is determined according to the ideal temperature information and the actual temperature distribution model.

[0017] In one embodiment, determining the global temperature state of the GIS combination electrical appliance according to the ideal temperature information and the actual temperature distribution model includes:

[0018] Constructing an ideal temperature distribution model of the GIS combination electrical appliance according to the ideal temperature information;

[0019] determining a degree of deviation between the actual temperature distribution model and the ideal temperature distribution model;

[0020] If the degree of deviation is greater than the deviation threshold, it is determined that the global temperature state of the GIS combination electrical appliance is a heating state.

[0021] In one embodiment, the external environment information at each monitoring point includes the ambient temperature information, air pressure information and gas composition information of the environment where the GIS combination electrical appliance is located at the monitoring point;

[0022] Determining the global operating state of the GIS combination electrical appliance according to the external environment information at each monitoring point includes:

[0023] Determine the abnormality of the local gas composition of the GIS combination electrical appliance at each monitoring point according to the gas pressure information and gas composition information of each monitoring point;

[0024] Determine the global temperature abnormality of the environment in which the GIS combination electrical appliance is located according to the ambient temperature information at each monitoring point;

[0025] The global operating state of the GIS combination electrical appliance is determined according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point.

[0026] In one embodiment, determining the global operating state of the GIS combination electrical appliance according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point includes:

[0027] If it is determined that there is a leak at any monitoring point based on the abnormal local gas composition of each monitoring point, and / or it is determined that the GIS combination electrical appliance is in an abnormal temperature environment based on the abnormal temperature, then the operating state of the GIS combination electrical appliance is determined to be an abnormal operating state.

[0028] In a second aspect, the present application also provides a fault diagnosis device for a GIS combination electrical appliance, comprising:

[0029] An information acquisition module is used to acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS combined electrical appliance; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS combined electrical appliance;

[0030] A status determination module, used to determine the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point;

[0031] A fault diagnosis module is used to perform fault diagnosis on the GIS combination electrical appliance according to the health status.

[0032] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0033] Acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS switchgear;

[0034] Determining the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point;

[0035] According to the health status, fault diagnosis is performed on the GIS combination electrical appliance.

[0036] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0037] Acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS switchgear;

[0038] Determining the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point;

[0039] According to the health status, fault diagnosis is performed on the GIS combination electrical appliance.

[0040] In a fifth aspect, the present application further provides a computer program product, including a computer program, which implements the following steps when executed by a processor:

[0041] Acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS switchgear;

[0042] Determining the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point;

[0043] According to the health status, fault diagnosis is performed on the GIS combination electrical appliance.

[0044] The fault diagnosis method, device, equipment, medium and product of the above-mentioned GIS combination electrical appliance obtains the monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS combination electrical appliance; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS combination electrical appliance; according to the monitoring point information at each monitoring point, the health state of the GIS combination electrical appliance is determined; according to the health state, the GIS combination electrical appliance is fault diagnosed; the above-mentioned scheme, by setting monitoring points at the switch contacts and wire connections in the GIS combination electrical appliance, can monitor the actual shell temperature of the GIS combination electrical appliance and the external environment information of the environment in which the GIS combination electrical appliance is located in real time; at the same time, according to the monitoring point information at each monitoring point, that is, the actual shell temperature and external environment information at the monitoring point, it is equivalent to comprehensively considering the influence of the environment in which the GIS combination electrical appliance is located, ensuring the accuracy of the determined health state of the GIS combination electrical appliance, and further ensuring the accuracy of the fault diagnosis result of the GIS combination electrical appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 An application environment diagram of a fault diagnosis method for a GIS combination electrical appliance in one embodiment;

[0047] Figure 2 A schematic diagram of a flow chart of a fault diagnosis method for a GIS combination electrical appliance in one embodiment;

[0048] Figure 3 A schematic diagram of a process for determining the health status of a GIS combination electrical appliance in one embodiment;

[0049] Figure 4 A schematic diagram of a flow chart for determining a global temperature state of a GIS combination electrical appliance in one embodiment;

[0050] Figure 5 A schematic diagram of a flow chart for determining the global operating state of a GIS combination electrical appliance in one embodiment;

[0051] Figure 6 A schematic diagram of a flow chart of a fault diagnosis method for a GIS combination electrical appliance in another embodiment;

[0052] Figure 7 A structural block diagram of a fault diagnosis device for a GIS combination electrical appliance in one embodiment;

[0053] Figure 8 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0054] 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.

[0055] The fault diagnosis method of the GIS combination electrical appliance provided in the embodiment of the present application can be applied to Figure 1In the application environment shown. Among them, the sensor array 101 is a sensor installed at the switch contacts and wire connections of the GIS combination electrical appliance, which is used to monitor the actual shell temperature of the GIS combination electrical appliance and the external environment information of the environment in which the GIS combination electrical appliance is located. In the embodiment of the present application, the sensor array 101 includes but is not limited to temperature sensors, gas sensors, and air pressure sensors. The monitoring device 102 is used to monitor the operation of the GIS combination electrical appliance. In the embodiment of the present application, the monitoring device 102 can be a server or a terminal with powerful computing capabilities. Optionally, the monitoring device 102 obtains the monitoring point information monitored by the sensor array 101 at each monitoring point in the gas-insulated fully enclosed GIS combination electrical appliance; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contacts and wire connections in the GIS combination electrical appliance; according to the monitoring point information at each monitoring point, the health status of the GIS combination electrical appliance is determined; further, the monitoring device 102 performs fault diagnosis on the GIS combination electrical appliance according to the health status.

[0056] In one embodiment, Figure 2 As shown, a fault diagnosis method for GIS combined electrical appliances is provided. Figure 1 Taking the monitoring device 102 in the example as an example, the following steps are specifically included:

[0057] S201, obtaining monitoring point information obtained by monitoring the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear.

[0058] In the embodiment of the present application, each switch contact and wire connection of the GIS combination electrical appliance is used as a monitoring point, and a sensor array is set at each monitoring point. In addition, in order to ensure the comprehensiveness of the data obtained by monitoring, the sensor array includes but is not limited to a first temperature sensor for monitoring the housing temperature of the GIS combination electrical appliance, a second temperature sensor for monitoring the ambient temperature of the environment in which the GIS combination electrical appliance is located, and a gas sensor for monitoring the air pressure and gas composition of the environment in which the GIS combination electrical appliance is located.

[0059] The information of each monitoring point includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS combination electrical appliance. In the embodiment of the present application, the external environment information includes but is not limited to the ambient temperature information, air pressure information and gas composition information of the environment where the GIS combination electrical appliance is located at the monitoring point.

[0060] Optionally, the monitoring device can periodically obtain the data monitored by each sensor in the sensor array installed at each monitoring point of the GIS combination electrical appliance, and integrate the data sent from the sensors at the same monitoring point to obtain the monitoring point information at each monitoring point.

[0061] S202, determining the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point.

[0062] Among them, the health status of the GIS combination electrical appliance represents the operating status of all aspects of the GIS combination electrical appliance.

[0063] Optionally, since the monitoring point information at each monitoring point includes the actual shell temperature and external environment information at the monitoring point, for each monitoring point, the shell temperature of the GIS combination appliance itself at the monitoring point can be evaluated, and the operating environment of the GIS combination appliance can also be evaluated.

[0064] Exemplarily, for each monitoring point, different shell temperature thresholds can be set for different monitoring points according to the type of the monitoring point, for example, whether the monitoring point is a switch contact or a wire connection. Furthermore, the actual shell temperature of the monitoring point is compared with the shell temperature threshold of the monitoring point. If the actual shell temperature is greater than the shell temperature threshold, it can be determined that the temperature of the monitoring point is too high and there is a heating fault. In addition, it is also possible to analyze whether the ambient temperature and air pressure of the GIS combination electrical appliance are normal based on the external environmental information. Furthermore, the health status of the GIS combination electrical appliance is evaluated by comprehensively considering the temperature conditions of each monitoring point and the environmental conditions in which it is located.

[0065] S203, performing fault diagnosis on the GIS combination electrical appliance according to the health status.

[0066] Optionally, the fault condition of the GIS combination electrical appliance may be determined through a fault analysis model in combination with the health status of the GIS combination electrical appliance.

[0067] In the above-mentioned fault diagnosis method of the GIS combination electrical appliance, the monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS combination electrical appliance is obtained; wherein, each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS combination electrical appliance; according to the monitoring point information at each monitoring point, the health state of the GIS combination electrical appliance is determined; according to the health state, the GIS combination electrical appliance is fault diagnosed; the above scheme, by setting monitoring points at the switch contacts and wire connections in the GIS combination electrical appliance, can monitor the actual shell temperature of the GIS combination electrical appliance and the external environment information of the environment in which the GIS combination electrical appliance is located in real time; at the same time, according to the monitoring point information at each monitoring point, that is, the actual shell temperature and external environment information at the monitoring point, it is equivalent to comprehensively considering the influence of the environment in which the GIS combination electrical appliance is located, ensuring the accuracy of the determined health state of the GIS combination electrical appliance, and further ensuring the accuracy of the fault diagnosis result of the GIS combination electrical appliance.

[0068] In one embodiment, Figure 3 As shown, a method for determining the health status of a GIS combination electrical appliance is provided, which specifically includes the following steps:

[0069] S301, determining the global temperature state of the GIS combination electrical appliance according to the actual shell temperature at each monitoring point and external environment information.

[0070] The global temperature state represents the temperature state of the GIS combination electrical appliance itself, and whether the GIS combination electrical appliance is heating can be determined based on the global temperature state.

[0071] Optionally, for any monitoring point, the ideal casing temperature of the monitoring point of the GIS combination appliance under the external environmental information can be determined by combining external environmental information with neural network and other technologies; further, the ideal casing temperature and the actual casing temperature can be compared to obtain a comparison result.

[0072] Furthermore, the global temperature state of the GIS combination electrical appliance can be determined by combining the comparison results of all monitoring points.

[0073] S302: Determine the global operating state of the GIS combination electrical appliance according to the external environment information at each monitoring point.

[0074] Among them, the global operating status represents whether the GIS combination electrical appliance operates safely in the environment.

[0075] Optionally, ideal environment information suitable for the ideal environment of the GIS combination electrical appliance operation can be determined based on experience, and further, the external environment information and the ideal environment information are compared and analyzed to obtain the deviation of the external environment information relative to the ideal environment information, such as the deviation between the ambient temperatures, the deviation between the air pressures, etc. Finally, based on the obtained deviations, the influence of these deviations on the operation of the GIS combination electrical appliance is determined, and the global operation state of the GIS combination electrical appliance is determined.

[0076] S303, determining the health status of the GIS combination electrical appliance according to the global temperature status and the global operation status.

[0077] Optionally, the global temperature state and the global operation state may be comprehensively considered and analyzed, and the health state of the GIS combination electrical appliance may be determined based on the analysis results.

[0078] In this embodiment, by comprehensively considering the influence of the external environment and based on the actual shell temperature at each monitoring point, the accuracy of the determined global temperature state of the GIS combination electrical appliance is guaranteed; at the same time, by based on the external environment information at each monitoring point, the accuracy of the determined global operating state of the GIS combination electrical appliance is guaranteed, thereby ensuring the accuracy of the determined health state of the GIS combination electrical appliance.

[0079] Optionally, in one embodiment, Figure 4 As shown, a method for determining the global temperature state of a GIS combination electrical appliance is provided, which specifically includes the following steps:

[0080] S401, determining the ideal temperature information of the GIS combination electrical appliance in the environment in which it is located according to the external environment information at each monitoring point and the attribute information of the GIS combination electrical appliance.

[0081] The ideal temperature information includes but is not limited to the ideal shell temperature at each monitoring point of the GIS combination electrical appliance.

[0082] Optionally, a three-dimensional virtual model of the GIS combination electrical appliance can be constructed based on the attribute information of the GIS combination electrical appliance; further, through simulation software, a simulation environment is built according to the external environment information from each monitoring point, and the three-dimensional virtual model is placed in the simulation environment for simulation, and during the simulation process, the shell temperature of each monitoring point of the GIS combination electrical appliance is monitored to obtain the ideal temperature information of the GIS combination electrical appliance in the environment.

[0083] S402: construct an actual temperature distribution model of the GIS combination electrical appliance according to the actual shell temperature at each monitoring point.

[0084] Among them, the actual temperature distribution model represents the temperature distribution generated by the actual operation of GIS in the environment.

[0085] Optionally, a function expression characterizing the temperature influence relationship between various monitoring points of the GIS combination electrical appliance can be constructed based on the operating characteristics of each device in the GIS combination electrical appliance. Furthermore, based on the function expression and the actual shell temperature at each monitoring point, an actual temperature distribution model of the GIS combination electrical appliance can be constructed.

[0086] S403, determining the global temperature state of the GIS combination electrical appliance according to the ideal temperature information and the actual temperature distribution model.

[0087] Optionally, based on the ideal temperature information, an ideal temperature distribution model of the GIS combination electrical appliance is constructed; the degree of deviation between the actual temperature distribution model and the ideal temperature distribution model is determined; if the degree of deviation is greater than the deviation threshold, the global temperature state of the GIS combination electrical appliance is determined to be a heating state. The deviation threshold is a pre-set threshold of the degree of deviation. Optionally, the same method as above can be used to construct an ideal temperature distribution model of the GIS combination electrical appliance, and the degree of deviation between the actual temperature distribution model and the ideal temperature distribution model can be statistically analyzed.

[0088] In this embodiment, by introducing ideal temperature information and actual temperature distribution model, since the actual temperature distribution model characterizes the overall temperature distribution of the GIS combination electrical appliance, it is equivalent to considering the overall situation of the GIS combination electrical appliance and the mutual influence between the monitoring points, thereby ensuring the accuracy of the determined global temperature state of the GIS combination electrical appliance.

[0089] Optionally, the external environment information at each monitoring point includes the ambient temperature information, air pressure information and gas composition information of the environment where the GIS combination electrical appliance is located at the monitoring point; in this case, in one embodiment, Figure 5 As shown, a method for determining the global operating state of a GIS combination electrical appliance is provided, which specifically includes the following steps:

[0090] S501, determining the abnormality of the local gas composition of the GIS combination electrical appliance at each monitoring point based on the gas pressure information and gas composition information of each monitoring point.

[0091] Among them, the abnormal gas composition characterizes the gas composition in the environment at each monitoring point and the content of each gas.

[0092] Optionally, for any monitoring point, based on the air pressure information and gas composition information of the monitoring point, by analyzing the deviation between the air pressure at the monitoring point and the air pressure under normal circumstances, as well as the difference between the gas composition of the environment and the gas composition under normal circumstances, the abnormal local gas composition of the GIS combination electrical appliance at the monitoring point is determined.

[0093] Exemplarily, the abnormal situation of the local gas composition at the monitoring point may include information such as the content of a certain gas exceeding the standard.

[0094] S502: Determine the global temperature abnormality of the environment in which the GIS combination electrical appliance is located according to the ambient temperature information at each monitoring point.

[0095] Optionally, the average value of the temperature values ​​in the ambient temperature information at each monitoring point can be calculated, and the calculated average value can be used as the actual ambient temperature. Further, it can be determined whether the actual ambient temperature exceeds the ideal temperature range under normal circumstances. If it exceeds, the global temperature anomaly of the environment in which the GIS combination electrical appliance is located can be determined as a global temperature anomaly.

[0096] S503, determining the global operating state of the GIS combination electrical appliance according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point.

[0097] Optionally, if it is determined that there is a leak at any monitoring point based on the abnormal local gas composition of each monitoring point, and / or it is determined that the GIS combination electrical appliance is in an abnormal temperature environment based on the abnormal temperature, then the operating state of the GIS combination electrical appliance is determined to be an abnormal operating state. Optionally, if there is any monitoring point, and the abnormal local gas composition of the monitoring point indicates that the content of a certain gas component exceeds the standard, then it can be determined that there is a leak at the monitoring point; similarly, if it is determined that the ambient climate is cold or hot based on the abnormal temperature, then it can be determined that the GIS combination electrical appliance is in an abnormal temperature environment. Therefore, if it is determined that there is a leak in the GIS combination electrical appliance or that the GIS combination electrical appliance is in an abnormal temperature environment, then it can be determined that the operating state of the GIS combination electrical appliance is an abnormal operating state.

[0098] In this embodiment, by introducing the ambient temperature information, air pressure information and gas composition information of each monitoring point, the accuracy of the determined local gas composition abnormalities and global temperature abnormalities is ensured, and the accuracy of the determined global operating status of the GIS combination electrical appliance is further ensured.

[0099] Figure 6 FIG. 1 is a flow chart of a fault diagnosis method for a GIS combination electrical appliance in another embodiment. Based on the above embodiment, this embodiment provides an optional example of a fault diagnosis method for a GIS combination electrical appliance. Figure 6 The specific implementation process is as follows:

[0100] S601, obtaining monitoring point information obtained by monitoring the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear.

[0101] The information of each monitoring point includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS combination electrical appliance.

[0102] S602, determining the ideal temperature information of the GIS combination electrical appliance in the environment in which it is located according to the external environment information at each monitoring point in the monitoring point information and the attribute information of the GIS combination electrical appliance.

[0103] S603: construct an actual temperature distribution model of the GIS combination electrical appliance according to the actual shell temperature at each monitoring point in the monitoring point information.

[0104] S604: Determine the global temperature state of the GIS combination electrical appliance according to the ideal temperature information and the actual temperature distribution model.

[0105] Optionally, an ideal temperature distribution model of the GIS combination electrical appliance is constructed based on the ideal temperature information; the degree of deviation between the actual temperature distribution model and the ideal temperature distribution model is determined; if the degree of deviation is greater than a deviation threshold, the global temperature state of the GIS combination electrical appliance is determined to be a heating state.

[0106] S605, determining the abnormality of the local gas composition of the GIS combination electrical appliance at each monitoring point according to the air pressure information and gas composition information in the external environment information of each monitoring point.

[0107] S606: Determine the global temperature abnormality of the environment in which the GIS combination electrical appliance is located according to the ambient temperature information in the external environment information at each monitoring point.

[0108] S607, determining the global operating state of the GIS combination electrical appliance according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point.

[0109] Optionally, if it is determined that there is a leak at any monitoring point based on the abnormal local gas composition of each monitoring point, and / or it is determined that the GIS combination appliance is in an abnormal temperature environment based on the abnormal temperature, then the operating state of the GIS combination appliance is determined to be an abnormal operating state.

[0110] S608, determining the health state of the GIS combination electrical appliance according to the global temperature state and the global operation state of the GIS combination electrical appliance.

[0111] S609, performing fault diagnosis on the GIS combination electrical appliance according to the health status of the GIS combination electrical appliance.

[0112] The specific process of the above S601-S609 can refer to the description of the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0113] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0114] Based on the same inventive concept, the embodiment of the present application also provides a GIS combination electrical appliance fault diagnosis device for implementing the above-mentioned GIS combination electrical appliance fault diagnosis method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above-mentioned method, so the specific limitations in the embodiments of one or more GIS combination electrical appliance fault diagnosis devices provided below can refer to the limitations of the GIS combination electrical appliance fault diagnosis method above, and will not be repeated here.

[0115] In an exemplary embodiment, Figure 7 As shown, a fault diagnosis device 700 for a GIS combination electrical appliance is provided, comprising: an information acquisition module 710, a state determination module 720 and a fault diagnosis module 730, wherein:

[0116] The information acquisition module 710 is used to obtain the monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS combination electrical appliance; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS combination electrical appliance.

[0117] The state determination module 720 is used to determine the health state of the GIS combination electrical appliance according to the monitoring point information at each monitoring point.

[0118] The fault diagnosis module 730 is used to perform fault diagnosis on the GIS combination electrical appliance according to the health status.

[0119] The fault diagnosis device of the above-mentioned GIS combination electrical appliance obtains the monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS combination electrical appliance; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS combination electrical appliance; the health state of the GIS combination electrical appliance is determined according to the monitoring point information at each monitoring point; and the GIS combination electrical appliance is fault diagnosed according to the health state; the above-mentioned scheme, by setting monitoring points at the switch contacts and wire connections in the GIS combination electrical appliance, can monitor the actual shell temperature of the GIS combination electrical appliance and the external environment information of the environment in which the GIS combination electrical appliance is located in real time; at the same time, according to the monitoring point information at each monitoring point, that is, the actual shell temperature and external environment information at the monitoring point, it is equivalent to comprehensively considering the influence of the environment in which the GIS combination electrical appliance is located, thereby ensuring the accuracy of the determined health state of the GIS combination electrical appliance, and further ensuring the accuracy of the fault diagnosis result of the GIS combination electrical appliance.

[0120] In one embodiment, the state determination module 720 includes:

[0121] The first determination unit is used to determine the global temperature state of the GIS combination electrical appliance according to the actual shell temperature at each monitoring point and the external environment information.

[0122] The second determining unit is used to determine the global operating state of the GIS combination electrical appliance according to the external environment information at each monitoring point.

[0123] The third determination unit is used to determine the health state of the GIS combination electrical appliance according to the global temperature state and the global operation state.

[0124] In one embodiment, the first determining unit includes:

[0125] The information determination slave unit is used to determine the ideal temperature information of the GIS combination electrical appliance in the environment in which it is located according to the external environment information at each monitoring point and the attribute information of the GIS combination electrical appliance.

[0126] The model building slave unit is used to build an actual temperature distribution model of the GIS combination electrical appliance according to the actual shell temperature at each monitoring point.

[0127] The first determining slave unit is used to determine the global temperature state of the GIS combination electrical appliance according to the ideal temperature information and the actual temperature distribution model.

[0128] In one embodiment, the state determination slave unit is specifically used for:

[0129] According to the ideal temperature information, an ideal temperature distribution model of the GIS combination electrical appliance is constructed; the degree of deviation between the actual temperature distribution model and the ideal temperature distribution model is determined; if the degree of deviation is greater than the deviation threshold, the global temperature state of the GIS combination electrical appliance is determined to be a heating state.

[0130] In one embodiment, the external environment information at each monitoring point includes the ambient temperature information, air pressure information and gas composition information of the environment where the GIS combination electrical appliance is located at the monitoring point; the second determination unit includes:

[0131] The gas determination slave unit is used to determine the abnormal situation of the local gas composition of the GIS combination electrical appliance at each monitoring point based on the gas pressure information and gas composition information of each monitoring point.

[0132] The temperature determination slave unit is used to determine the global temperature anomaly of the environment in which the GIS combination electrical appliance is located based on the ambient temperature information at each monitoring point.

[0133] The second determining slave unit is used to determine the global operating state of the GIS combination electrical appliance according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point.

[0134] In one embodiment, the second determining slave unit is specifically used for:

[0135] If leakage is determined at any monitoring point based on the abnormal local gas composition of each monitoring point, and / or the GIS combination appliance is determined to be in an abnormal temperature environment based on the abnormal temperature, the operating state of the GIS combination appliance is determined to be an abnormal operating state.

[0136] Each module in the fault diagnosis device of the GIS combination electrical appliance can be implemented in whole or in part by software, hardware and a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each module.

[0137] In an exemplary embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. Figure 8As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a fault diagnosis method for a GIS combination electrical appliance is implemented.

[0138] Those skilled in the art will understand that Figure 8 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0139] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0140] Acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS switchgear;

[0141] Determine the health status of the GIS combined electrical appliances based on the monitoring point information at each monitoring point;

[0142] Perform fault diagnosis on GIS combination electrical appliances based on their health status.

[0143] In one embodiment, when the processor executes the computer program to determine the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point, the processor also implements the following steps:

[0144] Determine the global temperature status of the GIS switchgear based on the actual shell temperature at each monitoring point and external environmental information;

[0145] Determine the global operating status of the GIS combined electrical appliances based on the external environment information at each monitoring point;

[0146] Determine the health status of the GIS combination electrical appliances based on the global temperature status and the global operating status.

[0147] In one embodiment, when the processor executes the computer program to determine the global temperature state of the GIS combination electrical appliance according to the actual housing temperature at each monitoring point and the external environment information, the following steps are also implemented:

[0148] According to the external environment information at each monitoring point and the property information of the GIS combination electrical appliance, the ideal temperature information of the GIS combination electrical appliance in the environment is determined; according to the actual shell temperature at each monitoring point, the actual temperature distribution model of the GIS combination electrical appliance is constructed; according to the ideal temperature information and the actual temperature distribution model, the global temperature state of the GIS combination electrical appliance is determined.

[0149] In one embodiment, when the processor executes the computer program to determine the global temperature state of the GIS combination electrical appliance according to the ideal temperature information and the actual temperature distribution model, the following steps are also implemented:

[0150] According to the ideal temperature information, an ideal temperature distribution model of the GIS combination electrical appliance is constructed; the degree of deviation between the actual temperature distribution model and the ideal temperature distribution model is determined; if the degree of deviation is greater than the deviation threshold, the global temperature state of the GIS combination electrical appliance is determined to be a heating state.

[0151] In one embodiment, the external environment information at each monitoring point includes the ambient temperature information, air pressure information and gas composition information of the environment where the GIS combination electrical appliance is located at the monitoring point; when the processor executes the computer program to determine the global operating state of the GIS combination electrical appliance according to the external environment information at each monitoring point, the following steps are also implemented:

[0152] According to the air pressure information and gas composition information of each monitoring point, the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point is determined; according to the ambient temperature information at each monitoring point, the global temperature abnormality of the environment in which the GIS combination electrical appliance is located is determined; according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point, the global operating status of the GIS combination electrical appliance is determined.

[0153] In one embodiment, when the processor executes the computer program to determine the global operating state of the GIS combination electrical appliance according to the global temperature abnormality and the local gas composition abnormality at each monitoring point of the GIS combination electrical appliance, the following steps are also implemented:

[0154] If leakage is determined at any monitoring point based on the abnormal local gas composition of each monitoring point, and / or the GIS combination appliance is determined to be in an abnormal temperature environment based on the abnormal temperature, the operating state of the GIS combination appliance is determined to be an abnormal operating state.

[0155] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0156] Acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS switchgear;

[0157] Determine the health status of the GIS combined electrical appliances based on the monitoring point information at each monitoring point;

[0158] Perform fault diagnosis on GIS combination electrical appliances based on their health status.

[0159] In one embodiment, when the processor executes the computer program to determine the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point, the processor also implements the following steps:

[0160] Determine the global temperature status of the GIS switchgear based on the actual shell temperature at each monitoring point and external environmental information;

[0161] Determine the global operating status of the GIS combined electrical appliances based on the external environment information at each monitoring point;

[0162] Determine the health status of the GIS combination electrical appliances based on the global temperature status and the global operating status.

[0163] In one embodiment, when the processor executes the computer program to determine the global temperature state of the GIS combination electrical appliance according to the actual housing temperature at each monitoring point and the external environment information, the following steps are also implemented:

[0164] According to the external environment information at each monitoring point and the property information of the GIS combination electrical appliance, the ideal temperature information of the GIS combination electrical appliance in the environment is determined; according to the actual shell temperature at each monitoring point, the actual temperature distribution model of the GIS combination electrical appliance is constructed; according to the ideal temperature information and the actual temperature distribution model, the global temperature state of the GIS combination electrical appliance is determined.

[0165] In one embodiment, when the processor executes the computer program to determine the global temperature state of the GIS combination electrical appliance according to the ideal temperature information and the actual temperature distribution model, the following steps are also implemented:

[0166] According to the ideal temperature information, an ideal temperature distribution model of the GIS combination electrical appliance is constructed; the degree of deviation between the actual temperature distribution model and the ideal temperature distribution model is determined; if the degree of deviation is greater than the deviation threshold, the global temperature state of the GIS combination electrical appliance is determined to be a heating state.

[0167] In one embodiment, the external environment information at each monitoring point includes the ambient temperature information, air pressure information and gas composition information of the environment where the GIS combination electrical appliance is located at the monitoring point; when the processor executes the computer program to determine the global operating state of the GIS combination electrical appliance according to the external environment information at each monitoring point, the following steps are also implemented:

[0168] According to the air pressure information and gas composition information of each monitoring point, the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point is determined; according to the ambient temperature information at each monitoring point, the global temperature abnormality of the environment in which the GIS combination electrical appliance is located is determined; according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point, the global operating status of the GIS combination electrical appliance is determined.

[0169] In one embodiment, when the processor executes the computer program to determine the global operating state of the GIS combination electrical appliance according to the global temperature abnormality and the local gas composition abnormality at each monitoring point of the GIS combination electrical appliance, the following steps are also implemented:

[0170] If leakage is determined at any monitoring point based on the abnormal local gas composition of each monitoring point, and / or the GIS combination appliance is determined to be in an abnormal temperature environment based on the abnormal temperature, the operating state of the GIS combination appliance is determined to be an abnormal operating state.

[0171] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0172] Acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS switchgear;

[0173] Determine the health status of the GIS combined electrical appliances based on the monitoring point information at each monitoring point;

[0174] Perform fault diagnosis on GIS combination electrical appliances based on their health status.

[0175] In one embodiment, when the processor executes the computer program to determine the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point, the processor also implements the following steps:

[0176] Determine the global temperature status of the GIS switchgear based on the actual shell temperature at each monitoring point and external environmental information;

[0177] Determine the global operating status of the GIS combined electrical appliances based on the external environment information at each monitoring point;

[0178] Determine the health status of the GIS combination electrical appliances based on the global temperature status and the global operating status.

[0179] In one embodiment, when the processor executes the computer program to determine the global temperature state of the GIS combination electrical appliance according to the actual housing temperature at each monitoring point and the external environment information, the following steps are also implemented:

[0180] According to the external environment information at each monitoring point and the property information of the GIS combination electrical appliance, the ideal temperature information of the GIS combination electrical appliance in the environment is determined; according to the actual shell temperature at each monitoring point, the actual temperature distribution model of the GIS combination electrical appliance is constructed; according to the ideal temperature information and the actual temperature distribution model, the global temperature state of the GIS combination electrical appliance is determined.

[0181] In one embodiment, when the processor executes the computer program to determine the global temperature state of the GIS combination electrical appliance according to the ideal temperature information and the actual temperature distribution model, the following steps are also implemented:

[0182] According to the ideal temperature information, an ideal temperature distribution model of the GIS combination electrical appliance is constructed; the degree of deviation between the actual temperature distribution model and the ideal temperature distribution model is determined; if the degree of deviation is greater than the deviation threshold, the global temperature state of the GIS combination electrical appliance is determined to be a heating state.

[0183] In one embodiment, the external environment information at each monitoring point includes the ambient temperature information, air pressure information and gas composition information of the environment where the GIS combination electrical appliance is located at the monitoring point; when the processor executes the computer program to determine the global operating state of the GIS combination electrical appliance according to the external environment information at each monitoring point, the following steps are also implemented:

[0184] According to the air pressure information and gas composition information of each monitoring point, the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point is determined; according to the ambient temperature information at each monitoring point, the global temperature abnormality of the environment in which the GIS combination electrical appliance is located is determined; according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point, the global operating status of the GIS combination electrical appliance is determined.

[0185] In one embodiment, when the processor executes the computer program to determine the global operating state of the GIS combination electrical appliance according to the global temperature abnormality and the local gas composition abnormality at each monitoring point of the GIS combination electrical appliance, the following steps are also implemented:

[0186] If leakage is determined at any monitoring point based on the abnormal local gas composition of each monitoring point, and / or the GIS combination appliance is determined to be in an abnormal temperature environment based on the abnormal temperature, the operating state of the GIS combination appliance is determined to be an abnormal operating state.

[0187] It should be noted that the data involved in this application (including but not limited to data used for analysis, storage, display, etc.) are all information and data fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0188] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0189] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0190] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A fault diagnosis method for a GIS combination electrical appliance, characterized in that: The method comprises: Acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS switchgear; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS switchgear; Determining the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point; According to the health status, fault diagnosis is performed on the GIS combination electrical appliance.

2. The method according to claim 1, characterized in that Determining the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point includes: Determine the global temperature state of the GIS combination electrical appliance according to the actual shell temperature at each monitoring point and external environmental information; Determine the global operating state of the GIS combination electrical appliance according to the external environment information at each monitoring point; The health state of the GIS combination appliance is determined according to the global temperature state and the global operation state.

3. The method according to claim 2, characterized in that Determining the global temperature state of the GIS combination electrical appliance according to the actual shell temperature at each monitoring point and the external environment information includes: Determine the ideal temperature information of the GIS combination electrical appliance in the environment according to the external environment information at each monitoring point and the attribute information of the GIS combination electrical appliance; According to the actual shell temperature at each monitoring point, an actual temperature distribution model of the GIS combination electrical appliance is constructed; The global temperature state of the GIS combination electrical appliance is determined according to the ideal temperature information and the actual temperature distribution model.

4. The method according to claim 3, characterized in that Determining the global temperature state of the GIS combination electrical appliance according to the ideal temperature information and the actual temperature distribution model includes: Constructing an ideal temperature distribution model of the GIS combination electrical appliance according to the ideal temperature information; determining a degree of deviation between the actual temperature distribution model and the ideal temperature distribution model; If the degree of deviation is greater than the deviation threshold, it is determined that the global temperature state of the GIS combination electrical appliance is a heating state.

5. The method according to claim 2, characterized in that: The external environment information at each monitoring point includes the ambient temperature information, air pressure information and gas composition information of the environment where the GIS combination electrical appliance is located at the monitoring point; Determining the global operating state of the GIS combination electrical appliance according to the external environment information at each monitoring point includes: Determine the abnormality of the local gas composition of the GIS combination electrical appliance at each monitoring point according to the gas pressure information and gas composition information of each monitoring point; Determine the global temperature abnormality of the environment in which the GIS combination electrical appliance is located according to the ambient temperature information at each monitoring point; The global operating state of the GIS combination electrical appliance is determined according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point.

6. The method according to claim 5, characterized in that Determining the global operating state of the GIS combination electrical appliance according to the global temperature abnormality and the local gas composition abnormality of the GIS combination electrical appliance at each monitoring point includes: If it is determined that there is a leak at any monitoring point based on the abnormal local gas composition of each monitoring point, and / or it is determined that the GIS combination electrical appliance is in an abnormal temperature environment based on the abnormal temperature, then the operating state of the GIS combination electrical appliance is determined to be an abnormal operating state.

7. A fault diagnosis device for a GIS combined electrical appliance, characterized in that: The device comprises: An information acquisition module is used to acquire monitoring point information obtained by the sensor array at each monitoring point in the gas-insulated fully enclosed GIS combined electrical appliance; wherein each monitoring point information includes the actual shell temperature and external environment information at the monitoring point; each monitoring point is located at the switch contact and wire connection in the GIS combined electrical appliance; A status determination module, used to determine the health status of the GIS combination electrical appliance according to the monitoring point information at each monitoring point; A fault diagnosis module is used to perform fault diagnosis on the GIS combination electrical appliance according to the health status.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

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

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

Images