GIS combined electrical apparatus fault diagnosis method, device, equipment, medium and product

Abstract

The application relates to a GIS combined electric appliance fault diagnosis method, device, equipment, medium and product. The method comprises the following steps: acquiring monitoring point information monitored by a sensor array at each monitoring point in a gas insulated full-closed GIS combined electric appliance; wherein each monitoring point information comprises an actual shell temperature at the monitoring point and external environment information; each monitoring point is located at a switch contact and a wire connection in the GIS combined electric appliance; determining a health state of the GIS combined electric appliance according to the monitoring point information at each monitoring point; and performing fault diagnosis on the GIS combined electric appliance according to the health state. The method can accurately monitor the temperature and environment of the GIS combined electric appliance and accurately diagnose the fault of the GIS combined electric appliance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of device monitoring, in particular to a GIS combined electrical apparatus fault diagnosis method, device, equipment, medium and product. BACKGROUND

[0002] In the power transmission and distribution system, gas insulated switchgear (GIS) combined electrical apparatus is not only widely used in high-voltage and extra-high-voltage fields, but also used in ultra-high-voltage fields. However, due to long-term operation, material aging, installation defects and other reasons, GIS combined electrical apparatus has discharge, body damage, insulator failure, overheating, insulating rod failure and power transmission system failure. If the heat of the GIS device cannot be detected and processed in time, it may cause device insulation, poor contact, fire and other problems and cause a series of serious electrical accidents.

[0003] At present, the temperature monitoring of GIS combined electrical apparatus mainly adopts external infrared temperature measurement method and internal optical fiber grating temperature measurement method, but the measurement accuracy of the infrared temperature measurement method is affected by many factors, such as weather, resulting in temperature monitoring error, and further affecting the accuracy of the fault diagnosis of GIS combined electrical apparatus. SUMMARY

[0004] Therefore, it is necessary to provide a GIS combined electrical apparatus fault diagnosis method, device, equipment, medium and product, which can accurately monitor the temperature and environment of GIS combined electrical apparatus and accurately diagnose the fault of GIS combined electrical apparatus.

[0005] In a first aspect, the present application provides a GIS combined electrical apparatus fault diagnosis method, comprising:

[0006] Obtaining monitoring point information obtained by a sensor array at each monitoring point in a gas insulated switchgear (GIS) combined electrical apparatus; wherein each monitoring point information comprises an actual shell temperature and external environment information at the monitoring point; each monitoring point is located at a switch contact and a wire connection in the GIS combined electrical apparatus;

[0007] Determining a health state of the GIS combined electrical apparatus according to the monitoring point information at each monitoring point;

[0008] Diagnosing a fault of the GIS combined electrical apparatus according to the health state.

[0009] In one embodiment, the method further comprises:

[0010] Determining a global temperature state of the GIS combined electrical apparatus according to the actual shell temperature and the external environment information at each monitoring point;

[0011] determine a global operation state of the GIS combined electrical apparatus according to the external environment information at each monitoring point;

[0012] determine a health state of the GIS combined electrical apparatus according to the global temperature state and the global operation state.

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

[0014] determine ideal temperature information of the GIS combined electrical apparatus in the environment according to the external environment information at each monitoring point and attribute information of the GIS combined electrical apparatus;

[0015] construct an actual temperature distribution model of the GIS combined electrical apparatus according to the actual shell temperature at each monitoring point;

[0016] determine the global temperature state of the GIS combined electrical apparatus according to the ideal temperature information and the actual temperature distribution model.

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

[0018] construct an ideal temperature distribution model of the GIS combined electrical apparatus according to the ideal temperature information;

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

[0020] if the deviation degree is greater than a deviation threshold, determine that the global temperature state of the GIS combined electrical apparatus is a heating state.

[0021] In one embodiment, the external environment information at each monitoring point comprises environment temperature information, air pressure information and gas component information of the environment in which the GIS combined electrical apparatus is located at the monitoring point;

[0022] the determining of the global operation state of the GIS combined electrical apparatus according to the external environment information at each monitoring point comprises:

[0023] determine local gas component abnormal conditions of the GIS combined electrical apparatus at each monitoring point according to the air pressure information and the gas component information of each monitoring point;

[0024] determine global temperature abnormal conditions of the environment in which the GIS combined electrical apparatus is located according to the environment temperature information at each monitoring point;

[0025] determine the global operation state of the GIS combined electric appliance according to the global temperature abnormality and the local gas composition abnormality of each monitoring point of the GIS combined electric appliance.

[0026] In one of the embodiments, the determination of the global operation state of the GIS combined electric appliance according to the global temperature abnormality and the local gas composition abnormality of each monitoring point of the GIS combined electric appliance comprises:

[0027] If it is determined that there is leakage at any monitoring point according to the local gas composition abnormality of each monitoring point, and / or it is determined that the GIS combined electric appliance is in a temperature abnormality environment according to the temperature abnormality, then the operation state of the GIS combined electric appliance is determined as an abnormal operation state.

[0028] In a second aspect, the present application further provides a fault diagnosis device for a GIS combined electric appliance, comprising:

[0029] an information acquisition module, configured to acquire monitoring point information monitored by a sensor array at each monitoring point in a gas-insulated fully-enclosed GIS combined electric appliance; wherein each monitoring point information comprises an actual shell temperature and external environment information at the monitoring point; and each monitoring point is located at a switch contact and a wire connection in the GIS combined electric appliance.

[0030] a state determination module, configured to determine a health state of the GIS combined electric appliance according to the monitoring point information at each monitoring point.

[0031] a fault diagnosis module, configured to perform fault diagnosis on the GIS combined electric appliance according to the health state.

[0032] In a third aspect, the present application further provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0033] acquire monitoring point information monitored by a sensor array at each monitoring point in a gas-insulated fully-enclosed GIS combined electric appliance; wherein each monitoring point information comprises an actual shell temperature and external environment information at the monitoring point; and each monitoring point is located at a switch contact and a wire connection in the GIS combined electric appliance.

[0034] determine a health state of the GIS combined electric appliance according to the monitoring point information at each monitoring point.

[0035] perform fault diagnosis on the GIS combined electric appliance according to the health state.

[0036] In a fourth aspect, the present application further provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the following steps:

[0037] obtaining monitoring point information obtained by sensor array monitoring at each monitoring point in a gas-insulated fully enclosed GIS combined electrical apparatus; wherein each monitoring point information comprises actual housing temperature at the monitoring point and external environment information; each monitoring point is located at a switch contact and a wire connection in the GIS combined electrical apparatus;

[0038] determining a health status of the GIS combined electrical apparatus according to the monitoring point information at each monitoring point;

[0039] performing fault diagnosis on the GIS combined electrical apparatus according to the health status.

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

[0041] obtaining monitoring point information obtained by sensor array monitoring at each monitoring point in a gas-insulated fully enclosed GIS combined electrical apparatus; wherein each monitoring point information comprises actual housing temperature at the monitoring point and external environment information; each monitoring point is located at a switch contact and a wire connection in the GIS combined electrical apparatus;

[0042] determining a health status of the GIS combined electrical apparatus according to the monitoring point information at each monitoring point;

[0043] performing fault diagnosis on the GIS combined electrical apparatus according to the health status.

[0044] The above-mentioned fault diagnosis method, device, equipment, medium and product of the GIS combined electrical apparatus, obtain monitoring point information obtained by sensor array monitoring at each monitoring point in a gas-insulated fully enclosed GIS combined electrical apparatus; wherein each monitoring point information comprises actual housing temperature at the monitoring point and external environment information; each monitoring point is located at a switch contact and a wire connection in the GIS combined electrical apparatus; determine a health status of the GIS combined electrical apparatus according to the monitoring point information at each monitoring point; perform fault diagnosis on the GIS combined electrical apparatus according to the health status; the above-mentioned scheme, by setting monitoring points at switch contacts and wire connections in the GIS combined electrical apparatus, can monitor actual housing temperature of the GIS combined electrical apparatus and external environment information of the environment where the GIS combined electrical apparatus is located in real time; at the same time, according to the monitoring point information at each monitoring point, i.e. the actual housing temperature at the monitoring point and the external environment information, the influence of the environment where the GIS combined electrical apparatus is located is equivalent to being comprehensively considered, the accuracy of the determined health status of the GIS combined electrical apparatus is ensured, and the accuracy of the fault diagnosis result of the GIS combined electrical apparatus is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the accompanying drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0046] Figure 1 An application environment diagram of the GIS combined electrical apparatus fault diagnosis method in one embodiment;

[0047] Figure 2 A flowchart of the GIS combined electrical apparatus fault diagnosis method in one embodiment;

[0048] Figure 3 A flowchart of determining the health state of the GIS combined electrical apparatus in one embodiment;

[0049] Figure 4 A flowchart of determining the global temperature state of the GIS combined electrical apparatus in one embodiment;

[0050] Figure 5 A flowchart of determining the global operation state of the GIS combined electrical apparatus in one embodiment;

[0051] Figure 6 A flowchart of the GIS combined electrical apparatus fault diagnosis method in another embodiment;

[0052] Figure 7 A structural block diagram of the GIS combined electrical apparatus fault diagnosis device in one embodiment;

[0053] Figure 8 An internal structure diagram of the computer device in one embodiment. DETAILED DESCRIPTION

[0054] In order to make the purposes, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to 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 GIS combined electrical apparatus fault diagnosis method provided by the embodiments of the present application can be applied to, for example, Figure 1The application environment is shown. Among them, the sensor array 101 is a sensor installed at the switch contact and wire connection of the GIS combined electrical appliance, used for monitoring the actual shell temperature of the GIS combined electrical appliance and the external environment information of the environment where the GIS combined electrical appliance is located. In the embodiment of the application, the sensor array 101 includes but is not limited to a temperature sensor, a gas sensor and a gas pressure sensor and the like. The monitoring device 102 is used for monitoring the running condition of the GIS combined electrical appliance. In the embodiment of the application, the monitoring device 102 can be a server or a terminal with strong computing power. 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 combined electrical appliance; wherein each monitoring point information includes the actual shell temperature and the 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; according to the monitoring point information at each monitoring point, the health status of the GIS combined electrical appliance is determined; further, the monitoring device 102 performs fault diagnosis on the GIS combined electrical appliance according to the health status.

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

[0057] S201, obtaining the monitoring point information monitored by the sensor array at each monitoring point in the gas insulated fully enclosed GIS combined electrical appliance.

[0058] In the embodiment of the application, each switch contact and wire connection of the GIS combined electrical appliance is taken as a monitoring point, and a sensor array is arranged at each monitoring point. In order to ensure the comprehensiveness of the monitored data, the sensor array includes but is not limited to a first temperature sensor for monitoring the shell temperature of the GIS combined electrical appliance, a second temperature sensor for monitoring the environment temperature of the environment where the GIS combined electrical appliance is located, a gas sensor for monitoring the gas pressure and gas composition of the environment where the GIS combined electrical appliance is located and the like.

[0059] Each monitoring point information includes the actual shell temperature and the 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. In the embodiment of the application, the external environment information includes but is not limited to the environment temperature information, the gas pressure information and the gas composition information of the environment where the GIS combined electrical appliance is located at the monitoring point.

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

[0061] S202, determine the health status of the GIS combined electric appliance according to the monitoring point information at each monitoring point.

[0062] The health status of the GIS combined electric appliance represents the running status of the GIS combined electric appliance in various aspects.

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

[0064] For example, for each monitoring point, different shell temperature thresholds can be set for different monitoring points according to the monitoring point type of the monitoring point, such as whether the monitoring point is a switch contact or a wire connection. Further, the actual shell temperature of the monitoring point is compared with the shell temperature threshold of the monitoring point, and 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 failure. In addition, the environmental temperature and air pressure of the GIS combined electric appliance can also be analyzed according to the external environment information. Further, the health status of the GIS combined electric appliance is evaluated by comprehensively considering the temperature condition and the environment condition of each monitoring point.

[0065] S203, perform fault diagnosis on the GIS combined electric appliance according to the health status.

[0066] Optionally, the fault condition of the GIS combined electric appliance can be determined by combining the health status of the GIS combined electric appliance and the fault analysis model.

[0067] In the above fault diagnosis method of the GIS combined electric appliance, the monitoring point information monitored by the sensor array at each monitoring point in the gas-insulated fully-enclosed GIS combined electric appliance is obtained; each monitoring point information includes the actual shell temperature at the monitoring point and the external environment information; each monitoring point is located at a switch contact or a wire connection in the GIS combined electric appliance; the health status of the GIS combined electric appliance is determined according to the monitoring point information at each monitoring point; the fault diagnosis on the GIS combined electric appliance is performed according to the health status; in the above scheme, by setting monitoring points at the switch contacts and wire connections in the GIS combined electric appliance, the actual shell temperature of the GIS combined electric appliance and the external environment information of the environment where the GIS combined electric appliance is located can be monitored in real time; at the same time, according to the monitoring point information at each monitoring point, i.e. the actual shell temperature at the monitoring point and the external environment information, the influence of the environment where the GIS combined electric appliance is located is considered comprehensively, which ensures the accuracy of the determined health status of the GIS combined electric appliance, and further ensures the accuracy of the fault diagnosis result of the GIS combined electric appliance.

[0068] In one embodiment, as shown in Figure 3 A method for determining the health state of a GIS combined electrical apparatus is provided, comprising the following steps:

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

[0070] The global temperature state represents the temperature state of the GIS combined electrical apparatus itself, and the global temperature state can be used to determine whether the GIS combined electrical apparatus has a heating condition.

[0071] Optionally, for any monitoring point, the ideal shell temperature of the GIS combined electrical apparatus at the monitoring point under the external environment information can be determined by combining the external environment information and using neural network technology, and further, the ideal shell temperature and the actual shell temperature can be compared to obtain a comparison result.

[0072] Further, the global temperature state of the GIS combined electrical apparatus can be determined by combining the comparison results of all monitoring points.

[0073] S302, determining the global running state of the GIS combined electrical apparatus according to the external environment information at each monitoring point.

[0074] The global running state represents whether the GIS combined electrical apparatus is safe to run in the environment.

[0075] Optionally, the ideal environment information suitable for the ideal environment of the GIS combined electrical apparatus can be determined according to experience, and further, the external environment information and the ideal environment information can be compared and analyzed to obtain the deviation of the external environment information relative to the ideal environment information, such as the deviation between the environment temperatures, the deviation between the air pressures, etc. Finally, according to the obtained deviation, the influence of the deviation on the running of the GIS combined electrical apparatus is determined, and the global running state of the GIS combined electrical apparatus is determined.

[0076] S303, determining the health state of the GIS combined electrical apparatus according to the global temperature state and the global running state.

[0077] Optionally, the global temperature state and the global running state can be comprehensively considered and analyzed, and the health state of the GIS combined electrical apparatus can be determined according to the analysis result.

[0078] In this embodiment, by comprehensively considering the influence of the external environment, and according to the actual shell temperature at each monitoring point, the accuracy of determining the global temperature state of the GIS combined electrical apparatus is ensured; at the same time, by according to the external environment information at each monitoring point, the accuracy of determining the global running state of the GIS combined electrical apparatus is ensured, and then the accuracy of determining the health state of the GIS combined electrical apparatus is ensured.

[0079] Optionally, in one embodiment, as shown in Figure 4 a method for determining the global temperature state of the GIS combined electrical apparatus is provided, which specifically comprises the following steps:

[0080] S401, according to the external environment information at each monitoring point and the attribute information of the GIS combined electrical apparatus, the ideal temperature information of the GIS combined electrical apparatus in the environment is determined.

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

[0082] Optionally, according to the attribute information of the GIS combined electrical apparatus, a three-dimensional virtual model of the GIS combined electrical apparatus can be constructed; further, according to the external environment information at each monitoring point, a simulation environment is built by simulation software, 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 combined electrical apparatus is monitored to obtain the ideal temperature information of the GIS combined electrical apparatus in the environment.

[0083] S402, according to the actual shell temperature at each monitoring point, an actual temperature distribution model of the GIS combined electrical apparatus is constructed.

[0084] The actual temperature distribution model represents the temperature distribution of the GIS actually running in the environment.

[0085] Optionally, according to the running characteristics of each device in the GIS combined electrical apparatus, a function expression representing the temperature influence relationship between each monitoring point of the GIS combined electrical apparatus can be constructed, and further, based on the function expression and the actual shell temperature at each monitoring point, the actual temperature distribution model of the GIS combined electrical apparatus is constructed.

[0086] S403, according to the ideal temperature information and the actual temperature distribution model, the global temperature state of the GIS combined electrical apparatus is determined.

[0087] Optionally, according to the ideal temperature information, an ideal temperature distribution model of the GIS combined electric appliance is constructed; a deviation degree between the actual temperature distribution model and the ideal temperature distribution model is determined; and if the deviation degree is greater than a deviation threshold, it is determined that the global temperature state of the GIS combined electric appliance is a heating state. The deviation threshold is a threshold of the deviation degree preset in advance. Optionally, the same method as described above can be used to construct the ideal temperature distribution model of the GIS combined electric appliance, and the deviation degree between the actual temperature distribution model and the ideal temperature distribution model is statistically analyzed.

[0088] In this embodiment, by introducing the ideal temperature information and the actual temperature distribution model, since the actual temperature distribution model represents the overall temperature distribution of the GIS combined electric appliance, the overall situation of the GIS combined electric appliance and the mutual influence between the monitoring points are considered, and thus the accuracy of the determined global temperature state of the GIS combined electric appliance is ensured.

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

[0090] S501, according to the air pressure information and the gas composition information of each monitoring point, a local gas composition abnormality of the GIS combined electric appliance at each monitoring point is determined.

[0091] The gas composition abnormality represents the gas composition and the content of each gas in the environment at each monitoring point.

[0092] Optionally, for any monitoring point, according to the air pressure information and the 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 conditions, and the difference between the gas composition of the environment and the gas composition under normal conditions, the local gas composition abnormality of the GIS combined electric appliance at the monitoring point is determined.

[0093] For example, the local gas composition abnormality of the monitoring point can include information that the content of a certain gas exceeds the standard, etc.

[0094] S502, according to the environment temperature information at each monitoring point, a global temperature abnormality of the environment in which the GIS combined electric appliance is located is determined.

[0095] Optionally, the average of the temperature values in the environmental temperature information at each monitoring point can be calculated, and the calculated average is taken as the actual environmental temperature. Further, it is determined whether the actual environmental temperature exceeds the ideal temperature range under normal circumstances. If it does, it is determined that the global temperature abnormality of the environment of the GIS combined electrical apparatus is global temperature abnormality.

[0096] S503, according to the global temperature abnormality and the local gas composition abnormality of the GIS combined electrical apparatus at each monitoring point, the global operation state of the GIS combined electrical apparatus is determined.

[0097] Optionally, if it is determined from the local gas composition abnormality of each monitoring point that there is leakage at any monitoring point, and / or if it is determined from the temperature abnormality that the GIS combined electrical apparatus is in a temperature abnormality environment, it is determined that the operation state of the GIS combined electrical apparatus is an abnormal operation state. Optionally, if there is any monitoring point, the local gas composition abnormality of the monitoring point indicates that the content of a certain gas composition exceeds the standard, it can be determined that there is leakage at the monitoring point. Similarly, if it is determined from the temperature abnormality that the environment is cold or extremely hot, it can be determined that the GIS combined electrical apparatus is in a temperature abnormality environment. Therefore, if it is determined that the GIS combined electrical apparatus has leakage or that the GIS combined electrical apparatus is in a temperature abnormality environment, it can be determined that the operation state of the GIS combined electrical apparatus is an abnormal operation state.

[0098] In this embodiment, by introducing the environmental temperature information, pressure information and gas composition information of each monitoring point, the accuracy of the determined local gas composition abnormality and global temperature abnormality is ensured, and the accuracy of the determined global operation state of the GIS combined electrical apparatus is further ensured.

[0099] Figure 6 For another embodiment of the flowchart of the fault diagnosis method of the GIS combined electrical apparatus, on the basis of the above embodiment, the present embodiment provides an optional example of a fault diagnosis method of a GIS combined electrical apparatus. In combination with Figure 6 , the specific implementation process is as follows:

[0100] S601, obtaining monitoring point information monitored by a sensor array at each monitoring point in a gas-insulated fully enclosed GIS combined electrical apparatus.

[0101] Each monitoring point information includes actual housing temperature and external environment information at the monitoring point. Each monitoring point is located at a switch contact and a wire connection in the GIS combined electrical apparatus.

[0102] S602, according to the external environment information of each monitoring point in the monitoring point information and the attribute information of the GIS combined electrical apparatus, the ideal temperature information of the GIS combined electrical apparatus under the environment is determined.

[0103] S603, constructing an actual temperature distribution model of the GIS combined electric appliance according to the actual casing temperature at each monitoring point in the monitoring point information.

[0104] S604, determining the global temperature state of the GIS combined electric appliance according to the ideal temperature information and the actual temperature distribution model.

[0105] Optionally, an ideal temperature distribution model of the GIS combined electric appliance is constructed according to the ideal temperature information; a deviation degree between the actual temperature distribution model and the ideal temperature distribution model is determined; and if the deviation degree is greater than a deviation threshold, the global temperature state of the GIS combined electric appliance is determined as a heating state.

[0106] S605, determining the local gas component abnormality of the GIS combined electric appliance at each monitoring point according to the gas pressure information and the gas component information in the external environment information of each monitoring point.

[0107] S606, determining the global temperature abnormality of the environment where the GIS combined electric appliance is located according to the environmental temperature information in the external environment information at each monitoring point.

[0108] S607, determining the global operation state of the GIS combined electric appliance according to the global temperature abnormality and the local gas component abnormality of the GIS combined electric appliance at each monitoring point.

[0109] Optionally, if it is determined that any monitoring point has a leakage according to the local gas component abnormality of each monitoring point, and / or the GIS combined electric appliance is in a temperature abnormality environment according to the temperature abnormality, the operation state of the GIS combined electric appliance is determined as an abnormal operation state.

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

[0111] S609, performing fault diagnosis on the GIS combined electric appliance according to the health state of the GIS combined electric appliance.

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

[0113] It should be understood that although the steps in the flowcharts involved in the embodiments described above are shown in sequence according to the arrows, the steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, the execution of the steps is not strictly limited in sequence, and the steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the embodiments described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of the steps or stages is not necessarily sequential, but can be alternately or alternately executed with at least part of other steps or steps or stages in other steps.

[0114] Based on the same inventive concept, the embodiments of the present application also provide a GIS combined electrical apparatus fault diagnosis device for implementing the GIS combined electrical apparatus fault diagnosis method described above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more GIS combined electrical apparatus fault diagnosis device embodiments provided below can refer to the limitations of the GIS combined electrical apparatus fault diagnosis method described above, which will not be repeated here.

[0115] In one exemplary embodiment, as shown in FIG. 7, a GIS combined electrical apparatus fault diagnosis device 700 is provided, comprising an information acquisition module 710, a state determination module 720 and a fault diagnosis module 730, wherein: Figure 7

[0116] The information acquisition module 710 is configured to acquire monitoring point information monitored by a sensor array at each monitoring point in the gas-insulated fully-enclosed GIS combined electrical apparatus; each monitoring point information includes actual housing temperature and external environment information at the monitoring point; and each monitoring point is located at a switch contact point and a wire connection in the GIS combined electrical apparatus.

[0117] The state determination module 720 is configured to determine the health state of the GIS combined electrical apparatus according to the monitoring point information at each monitoring point.

[0118] The fault diagnosis module 730 is configured to perform fault diagnosis on the GIS combined electrical apparatus according to the health state.

[0119] ​The fault diagnosis device of the GIS combined electric appliance acquires monitoring point information monitored by a sensor array at each monitoring point in a gas-insulated fully-enclosed GIS combined electric appliance; each monitoring point information includes actual casing temperature at the monitoring point and external environment information; each monitoring point is located at a switch contact and a wire connection in the GIS combined electric appliance; a health state of the GIS combined electric appliance is determined according to the monitoring point information at each monitoring point; and the GIS combined electric appliance is diagnosed for faults according to the health state. According to the scheme, the actual casing temperature of the GIS combined electric appliance and the external environment information of the environment where the GIS combined electric appliance is located can be monitored in real time by arranging monitoring points at the switch contact and the wire connection in the GIS combined electric appliance. Meanwhile, the monitoring point information at each monitoring point, i.e., the actual casing temperature at the monitoring point and the external environment information, is equivalent to comprehensively considering the influence of the environment where the GIS combined electric appliance is located, ensuring the accuracy of the determined health state of the GIS combined electric appliance, and further ensuring the accuracy of the fault diagnosis result of the GIS combined electric appliance.

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

[0121] A first determination unit configured to determine a global temperature state of the GIS combined electric appliance according to the actual casing temperature and the external environment information at each monitoring point.

[0122] A second determination unit configured to determine a global operation state of the GIS combined electric appliance according to the external environment information at each monitoring point.

[0123] A third determination unit configured to determine a health state of the GIS combined electric appliance according to the global temperature state and the global operation state.

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

[0125] An information determination subunit configured to determine ideal temperature information of the GIS combined electric appliance in the environment according to the external environment information at each monitoring point and attribute information of the GIS combined electric appliance.

[0126] A model construction subunit configured to construct an actual temperature distribution model of the GIS combined electric appliance according to the actual casing temperature at each monitoring point.

[0127] A first determination subunit configured to determine the global temperature state of the GIS combined electric appliance according to the ideal temperature information and the actual temperature distribution model.

[0128] In one embodiment, the state determination subunit is specifically configured to:

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

[0130] In one embodiment, the external environment information at each monitoring point includes environment temperature information, air pressure information and gas component information of an environment in which the GIS combined electric appliance is located at the monitoring point; and the second determination unit includes:

[0131] a gas determination unit configured to determine a local gas component abnormality of the GIS combined electric appliance at each monitoring point according to the air pressure information and the gas component information of the monitoring point.

[0132] a temperature determination unit configured to determine a global temperature abnormality of the environment in which the GIS combined electric appliance is located according to the environment temperature information at each monitoring point.

[0133] a second determination unit configured to determine a global operation state of the GIS combined electric appliance according to the global temperature abnormality and the local gas component abnormality of the GIS combined electric appliance at each monitoring point.

[0134] In one embodiment, the second determination unit is specifically configured to:

[0135] If it is determined that there is a leakage at any monitoring point according to the local gas component abnormality of each monitoring point, and / or the GIS combined electric appliance is in a temperature abnormality environment according to the temperature abnormality, the operation state of the GIS combined electric appliance is determined as an abnormal operation state.

[0136] Each module in the above-mentioned fault diagnosis device of the GIS combined electric appliance can be realized by software, hardware and a combination thereof in whole or in part. The above-mentioned modules can be embedded in or independent of a processor in a computer device in a hardware form, or can be stored in a memory in a computer device in a software form, so as to be called and executed by a processor to perform operations corresponding to each module.

[0137] In one exemplary embodiment, a computer device is provided, which can be a server, and an internal structure diagram of the computer device can be as shown in Figure 8As shown in the figure. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through the system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capability. 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 the external device. The communication interface of the computer device is used to communicate with the terminal outside through the network connection. The computer program is executed by the processor to realize a GIS combined electrical appliance fault diagnosis method.

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

[0139] In one exemplary embodiment, a computer device is provided, including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to realize the following steps:

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

[0141] According to the monitoring point information at each monitoring point, determining the health status of the GIS combined electrical appliance;

[0142] According to the health status, performing fault diagnosis on the GIS combined electrical appliance.

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

[0144] According to the actual shell temperature and the external environment information at each monitoring point, determining the global temperature state of the GIS combined electrical appliance;

[0145] According to the external environment information at each monitoring point, determining the global running state of the GIS combined electrical appliance;

[0146] Determine the health state of the GIS combined electrical appliance according to the global temperature state and the global operation state.

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

[0148] Determine the ideal temperature information of the GIS combined electrical appliance in the environment according to the external environment information at each monitoring point and the attribute information of the GIS combined electrical appliance; construct an actual temperature distribution model of the GIS combined electrical appliance according to the actual shell temperature at each monitoring point; and determine the global temperature state of the GIS combined electrical appliance according to the ideal temperature information and the actual temperature distribution model.

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

[0150] Construct an ideal temperature distribution model of the GIS combined electrical appliance according to the ideal temperature information; determine the deviation degree between the actual temperature distribution model and the ideal temperature distribution model; and if the deviation degree is greater than a deviation threshold, determine that the global temperature state of the GIS combined electrical appliance is a heating state.

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

[0152] Determine the local gas composition abnormality of the GIS combined electrical appliance at each monitoring point according to the air pressure information and the gas composition information of each monitoring point; determine the global temperature abnormality of the environment in which the GIS combined electrical appliance is located according to the environmental temperature information at each monitoring point; and determine the global operation state of the GIS combined electrical appliance according to the global temperature abnormality and the local gas composition abnormality of the GIS combined electrical appliance at each monitoring point.

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

[0154] If it is determined that there is leakage at any monitoring point according to the local gas composition abnormality of each monitoring point, and / or it is determined that the GIS combined electrical appliance is in a temperature abnormality environment according to the temperature abnormality, then determine that the operation state of the GIS combined electrical appliance is an abnormal operation state.

[0155] In one embodiment, a computer readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, implements the following steps:

[0156] Obtaining monitoring point information obtained by a sensor array at each monitoring point in a gas-insulated fully-enclosed GIS combined electrical apparatus; wherein each monitoring point information comprises an actual casing temperature at the monitoring point and external environment information; each monitoring point is located at a switch contact and a wire connection in the GIS combined electrical apparatus;

[0157] Determining a health state of the GIS combined electrical apparatus according to the monitoring point information at each monitoring point;

[0158] Performing fault diagnosis on the GIS combined electrical apparatus according to the health state.

[0159] In one embodiment, when the processor executes the computer program to determine the health state of the GIS combined electrical apparatus according to the monitoring point information at each monitoring point, the following steps are further implemented:

[0160] Determining a global temperature state of the GIS combined electrical apparatus according to the actual casing temperature and the external environment information at each monitoring point;

[0161] Determining a global operating state of the GIS combined electrical apparatus according to the external environment information at each monitoring point;

[0162] Determining the health state of the GIS combined electrical apparatus according to the global temperature state and the global operating state.

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

[0164] Determining ideal temperature information of the GIS combined electrical apparatus in the environment according to the external environment information at each monitoring point and attribute information of the GIS combined electrical apparatus; constructing an actual temperature distribution model of the GIS combined electrical apparatus according to the actual casing temperature at each monitoring point; and determining the global temperature state of the GIS combined electrical apparatus according to the ideal temperature information and the actual temperature distribution model.

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

[0166] Constructing an ideal temperature distribution model of the GIS combined electrical apparatus according to the ideal temperature information; determining a deviation degree between the actual temperature distribution model and the ideal temperature distribution model; and determining the global temperature state of the GIS combined electrical apparatus as a heating state if the deviation degree is greater than a deviation threshold.

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

[0168] determining local gas composition abnormal conditions of the GIS combined electric appliance at each monitoring point according to the air pressure information and the gas composition information of each monitoring point; determining global temperature abnormal conditions of the environment where the GIS combined electric appliance is located according to the environmental temperature information at each monitoring point; and determining the global operation state of the GIS combined electric appliance according to the global temperature abnormal conditions and the local gas composition abnormal conditions of the GIS combined electric appliance at each monitoring point.

[0169] In one embodiment, when the processor executes the computer program to determine the global operation state of the GIS combined electric appliance according to the global temperature abnormal conditions and the local gas composition abnormal conditions of the GIS combined electric appliance at each monitoring point, the following steps are further implemented:

[0170] if it is determined that there is leakage at any monitoring point according to the local gas composition abnormal conditions of each monitoring point, and / or it is determined that the GIS combined electric appliance is in a temperature abnormal environment according to the temperature abnormal conditions, then it is determined that the operation state of the GIS combined electric appliance is an abnormal operation state.

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

[0172] obtaining monitoring point information monitored by a sensor array at each monitoring point in a gas-insulated fully-enclosed GIS combined electric appliance; wherein each monitoring point information includes actual housing temperature and external environment information at the monitoring point; each monitoring point is located at a switch contact and a wire connection in the GIS combined electric appliance;

[0173] determining a health state of the GIS combined electric appliance according to the monitoring point information at each monitoring point;

[0174] performing fault diagnosis on the GIS combined electric appliance according to the health state.

[0175] In one embodiment, when the processor executes the computer program to determine the health state of the GIS combined electric appliance according to the monitoring point information at each monitoring point, the following steps are further implemented:

[0176] determining a global temperature state of the GIS combined electric appliance according to the actual housing temperature and the external environment information at each monitoring point;

[0177] According to the external environment information at each monitoring point, a global operation state of the GIS combined electrical apparatus is determined.

[0178] According to the global temperature state and the global operation state, a health state of the GIS combined electrical apparatus is determined.

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

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

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

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

[0183] In one embodiment, the external environment information at each monitoring point includes environment temperature information, air pressure information and gas composition information of the environment in which the GIS combined electrical apparatus is located at the monitoring point; and when the processor executes the computer program to determine the global operation state of the GIS combined electrical apparatus according to the external environment information at each monitoring point, the following steps are further implemented:

[0184] According to the air pressure information and the gas composition information of each monitoring point, local gas composition abnormal conditions of the GIS combined electrical apparatus at each monitoring point are determined; according to the environment temperature information at each monitoring point, a global temperature abnormal condition of the environment in which the GIS combined electrical apparatus is located is determined; and according to the global temperature abnormal condition and the local gas composition abnormal conditions of the GIS combined electrical apparatus at each monitoring point, the global operation state of the GIS combined electrical apparatus is determined.

[0185] In one embodiment, when the processor executes the computer program to determine the global operation state of the GIS combined electrical apparatus according to the global temperature abnormal condition and the local gas composition abnormal conditions of the GIS combined electrical apparatus at each monitoring point, the following steps are further implemented:

[0186] If it is determined that any monitoring point has a leakage according to the local gas component abnormality of each monitoring point, and / or it is determined that the GIS combined electrical apparatus is in an abnormal temperature environment according to the temperature abnormality, it is determined that the running state of the GIS combined electrical apparatus is an abnormal running state.

[0187] It should be noted that the data involved in the present application (including but not limited to data for analysis, stored data, displayed data, etc.) are all authorized information and data, and the collection, use and processing of related data need to 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 a computer program instructing related hardware. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiments. Any reference to memory, database or other medium used in the embodiments provided by the present 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 storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric 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 but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided by the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided by the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0189] Any technical features in the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described above, however, as long as the combinations of technical features do not have contradictions, they shall be considered within the scope of the present disclosure.

[0190] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it shall not be understood as a limitation on the patent scope of the present application. It shall be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these shall be within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A method of diagnosing a fault of a GIS combined electric appliance, characterized by, The method comprises: obtaining monitoring point information monitored by a sensor array at each monitoring point in a gas insulated switchgear (GIS) device; wherein each monitoring point information comprises an actual casing temperature at the monitoring point and external environment information; each monitoring point is located at a switch contact and a wire connection in the GIS device, and the external environment information at each monitoring point comprises environmental temperature information, air pressure information, and gas composition information of an environment in which the GIS device is located at the monitoring point; determining ideal temperature information of the GIS device in the environment in which the GIS device is located according to the external environment information at each monitoring point and attribute information of the GIS device; constructing an actual temperature distribution model of the GIS device according to the actual casing temperature at each monitoring point; determining a global temperature state of the GIS device according to the ideal temperature information and the actual temperature distribution model; determining local gas composition abnormality of the GIS device at each monitoring point according to the air pressure information and the gas composition information of each monitoring point; determining a global temperature abnormality of the environment in which the GIS device is located according to the environmental temperature information at each monitoring point; determining a global operation state of the GIS device according to the global temperature abnormality and the local gas composition abnormality of the GIS device at each monitoring point; determining a health state of the GIS device according to the global temperature state and the global operation state; performing fault diagnosis on the GIS device according to the health state.

2. The method of claim 1, wherein, The determination of the global temperature state of the GIS device according to the ideal temperature information and the actual temperature distribution model comprises: constructing an ideal temperature distribution model of the GIS device according to the ideal temperature information; determining a deviation degree between the actual temperature distribution model and the ideal temperature distribution model; if the deviation degree is greater than a deviation threshold, determining that the global temperature state of the GIS device is a heating state.

3. The method of claim 1, wherein, The determination of the global operation state of the GIS device according to the global temperature abnormality and the local gas composition abnormality of the GIS device at each monitoring point comprises: if any monitoring point has a leak according to the local gas composition abnormality of each monitoring point and / or the GIS device is in a temperature abnormality environment according to the global temperature abnormality, determining that the operation state of the GIS device is an abnormal operation state.

4. A fault diagnosis device for a GIS combined electric appliance, characterized by comprising: The device comprises: an information acquisition module configured to obtain monitoring point information monitored by a sensor array at each monitoring point in a gas insulated switchgear (GIS) device; wherein each monitoring point information comprises an actual casing temperature at the monitoring point and external environment information; each monitoring point is located at a switch contact and a wire connection in the GIS device, and the external environment information at each monitoring point comprises environmental temperature information, air pressure information, and gas composition information of an environment in which the GIS device is located at the monitoring point; The information determining unit is configured to determine ideal temperature information of the GIS combined electrical apparatus in the environment according to external environment information at each monitoring point and attribute information of the GIS combined electrical apparatus; The model constructing unit is configured to construct an actual temperature distribution model of the GIS combined electrical apparatus according to actual shell temperatures at each monitoring point; The first determining unit is configured to determine a global temperature state of the GIS combined electrical apparatus according to the ideal temperature information and the actual temperature distribution model; The gas determining unit is configured to determine a local gas composition abnormality of the GIS combined electrical apparatus at each monitoring point according to gas pressure information and gas composition information of each monitoring point; The temperature determining unit is configured to determine a global temperature abnormality of the environment in which the GIS combined electrical apparatus is located according to environmental temperature information at each monitoring point; The second determining unit is configured to determine a global operation state of the GIS combined electrical apparatus according to the global temperature abnormality and the local gas composition abnormality of the GIS combined electrical apparatus at each monitoring point; The third determining unit is configured to determine a health state of the GIS combined electrical apparatus according to the global temperature state and the global operation state; The fault diagnosis module is configured to perform fault diagnosis on the GIS combined electrical apparatus according to the health state. 5.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-4 when the computer program is executed by the processor. The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 3.

6. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 3.

7. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 3.

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