A gas-insulated metal-enclosed switch system based on artificial intelligence

Abstract

The present invention belongs to the field of gas-insulated metal-enclosed switch state monitoring, and specifically discloses a gas-insulated metal-enclosed switch system based on artificial intelligence, which includes: accurately cutting off the power supply of a specified line after receiving a circuit-breaking instruction through a circuit breaker, and capturing and analyzing key parameters of contact behavior during the disconnection operation, so as to accurately evaluate the performance of the contact during fault disconnection; after the faulty line resumes operation, evaluating the closing and resetting accuracy of the contact closing and resetting process, and further quantifying the operating state excellence coefficient of the contact; by real-time monitoring of various key parameters of the gas inside the gas-insulated metal-enclosed switch device, analyzing the circulation operation effect coefficient of the gas coolant inside the device; by troubleshooting the gas box of the device and locating the cause of the gas box failure, ensuring that the gas environment inside the gas-insulated metal-enclosed switch device is always in an excellent state.

Description

Technical Field

[0001] The invention belongs to the field of gas-insulated metal-enclosed switch state monitoring and relates to a gas-insulated metal-enclosed switch system based on artificial intelligence. Background Art

[0002] As the scale of power grids continues to expand and become more complex, gas-insulated metal-enclosed switchgear (GIS) is increasingly used in power systems, and its safe operation is crucial to the stability of the entire power grid. As a high-voltage electrical device, GIS equipment mainly uses SF6 gas as an insulating medium, enclosing major components such as circuit breakers and disconnectors in a metal casing, and has been widely used in power systems.

[0003] However, with the increase in the number of GIS devices and the extension of their operating time, their safety and reliability issues have become increasingly prominent. Once a GIS device fails, it may cause the entire power system to be paralyzed, causing huge economic losses and social impacts. Therefore, real-time monitoring and evaluation of the status of GIS equipment and timely detection and treatment of potential safety hazards have become important tasks in the operation and maintenance of power systems.

[0004] There is a lack of in-depth analysis of the sensitivity and accuracy of switch opening and closing operations, specifically including: 1. The existing technology is insufficient in the operating accuracy parameters for monitoring contact movement, and lacks real-time capture and analysis of key parameters of the contact separation process, which may lead to untimely early identification of contact wear or failure, increasing the risk of unexpected equipment failure.

[0005] 2. The existing technology lacks quantitative evaluation of the accuracy of the contact reset control action, which limits the overall evaluation and maintenance decision-making of the equipment operating status, and may affect the power supply quality and equipment stability.

[0006] 3. The current gas-insulated metal-enclosed switchgear often fails to achieve real-time and continuous monitoring of the key parameters of the internal gas, which may lead to limited perception and prediction capabilities of the internal state of the equipment, and is not conducive to timely detection and handling of potential faults.

[0007] 4. When facing the internal gas environment problem of gas-insulated metal-enclosed switchgear, the existing technology lacks the ability to locate and troubleshoot the cause of the gas box failure, which may lead to low troubleshooting efficiency, affect equipment availability, and also increase maintenance costs and safety hazards. Summary of the invention

[0008] In view of this, in order to solve the problems raised in the above background technology, a gas-insulated metal-enclosed switch system based on artificial intelligence is proposed.

[0009] The purpose of the present invention can be achieved through the following technical solutions: The present invention provides a gas-insulated metal-enclosed switch system based on artificial intelligence, which includes: a fault location module, which is used to analyze the stability coefficient of each line in the electrical system in real time, screen out the faulty line, record it as a designated line, and send a designated line breaking instruction to the circuit breaker.

[0010] The circuit breaker control module is used to extract the circuit breaking instruction through the circuit breaker, thereby cutting off the power supply of the designated line, and at the same time controlling the dedicated contacts corresponding to the designated line to perform the disconnection operation, and the dedicated contacts include a moving contact and a static contact.

[0011] The contact separation data analysis module is used to obtain the separation data of the dedicated contacts corresponding to the specified line and evaluate the fault disconnection sensitivity of the dedicated contacts corresponding to the specified line.

[0012] The contact performance detection module is used to perform closing operations on the dedicated contacts corresponding to the specified line, evaluate the closing and resetting accuracy of the dedicated contacts corresponding to the specified line, and then analyze the operating status excellence coefficient of the dedicated contacts corresponding to the specified line .

[0013] Fault response monitoring module, used to record the interval between the disconnection execution start time and the reset execution end time of the dedicated contact corresponding to the specified line as the fault maintenance time period, and analyze the internal gas cooling cycle operation effect coefficient of the device , and then evaluate the fault handling effectiveness index of the gas-insulated metal-enclosed switchgear, and determine whether the fault handling effectiveness index meets the standard.

[0014] The gas fault troubleshooting module is used to identify whether the gas box inside the device is faulty based on the fault handling effectiveness index being unsatisfactory, and to troubleshoot the gas inside the gas box.

[0015] The contact fault troubleshooting module is used to collect infrared images of the dedicated contacts corresponding to the specified line during the disconnection and closing processes, analyze the functional integrity indicators of the dedicated contacts corresponding to the specified line, and then evaluate the conductive performance fault index of the dedicated contacts corresponding to the specified line.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention accurately cuts off the power supply of the designated line after the circuit breaker receives the circuit breaking command, and performs high-quality disconnection operations by controlling the dedicated moving contacts and static contacts, accurately evaluating the fault disconnection sensitivity of the contacts, and can capture and analyze the key parameters of the contact behavior during the disconnection operation, such as separation speed, separation distance and vibration amplitude, so as to accurately evaluate the performance of the contacts during fault disconnection, which helps to discover potential contact wear or failure problems in advance.

[0017] (2) After the faulty line resumes operation, the present invention monitors and precisely controls the closing and resetting process of the contacts in real time to ensure that the contacts can return to their original positions smoothly and accurately, thus avoiding the occurrence of secondary faults. At the same time, by evaluating the closing and resetting accuracy, the operating state excellence coefficient of the contacts is further quantified, which is beneficial to improving the power supply quality and stability of the equipment after the equipment resumes operation.

[0018] (3) The present invention monitors the key parameters of the gas inside the gas-insulated metal-enclosed switchgear in real time, including the gas distribution uniformity and distribution pressure, and analyzes the gas cooling cycle operation effect coefficient inside the device, thereby effectively evaluating the fault handling effectiveness of the entire device and greatly enhancing the real-time perception and prediction capabilities of the equipment's operating status.

[0019] (4) The present invention obtains the concentration of abnormal gas components inside the device, performs troubleshooting on the device gas box, locates the cause of the gas box failure, and then intelligently troubleshoots and processes the gas in the gas box to ensure that the gas environment inside the gas-insulated metal-enclosed switchgear is always in a good state. This helps operation and maintenance personnel quickly locate possible internal defects or fault locations, thereby more effectively performing targeted fault processing, shortening troubleshooting time, and improving equipment availability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the connection of the system modules of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 As shown, the present invention provides a gas-insulated metal-enclosed switch system based on artificial intelligence, which includes: a fault location module, a circuit breaker control module, a contact separation data analysis module, a contact performance detection module, a fault response monitoring module, a gas fault troubleshooting module, and a contact fault troubleshooting module.

[0024] The fault location module is connected to the circuit breaker control module, the circuit breaker control module is connected to the contact separation data analysis module, the contact separation data analysis module is connected to the contact performance detection module, the contact performance detection module is connected to the fault reaction monitoring module, the fault reaction monitoring module is connected to the gas fault troubleshooting module, and the gas fault troubleshooting module is connected to the contact fault troubleshooting module.

[0025] The fault location module is used to detect the voltage and current operating status of each line in the electrical system in real time, analyze the stability coefficient of each line in the electrical system, screen out the faulty line, record it as a designated line, and send a designated line breaking instruction to the circuit breaker.

[0026] In a preferred embodiment, the content of analyzing the stability coefficient of each line in the electrical system includes: extracting the voltage and current of each line in the electrical system at each monitoring time point within the set detection time period from the device data storage end, and recording them as , is the line number, , is the number of the monitoring time point, .

[0027] Analyze the stability factor of each line in the electrical system ,in Respectively represent The line is within the set detection time period. The voltage and current at each monitoring time point are They represent the voltage and current floating allowable values ​​between the two set monitoring time points. is the number of monitoring time points.

[0028] The stability coefficient of each line in the electrical system is compared with the preset stability coefficient threshold, and the lines in the electrical system whose stability coefficient is lower than the preset stability coefficient threshold are screened out, that is, the faulty lines.

[0029] Specifically, the equipment data storage end is a cloud-based real-time recording library of the operation data of the gas-insulated metal-enclosed switchgear, which is used to store the operation data of each equipment component. The equipment components include each line and its corresponding special contacts and gas boxes. The operation data of each line specifically includes the voltage and current of the corresponding line at each monitoring time point within the set detection time period. The operation data of the special contacts corresponding to each line specifically includes the transient current of the corresponding special contacts of the corresponding line at the start and end times of the disconnection process and the closing process. The operation data of the gas box specifically includes the remaining gas volume and historical maintenance records.

[0030] The circuit breaker control module is used to extract a circuit breaking instruction through the circuit breaker, thereby cutting off the power supply of the designated circuit, and at the same time controlling the dedicated contacts corresponding to the designated circuit to perform a disconnection operation, wherein the dedicated contacts include a moving contact and a static contact.

[0031] Specifically, in the electrical system, each line refers to a power line of different voltage levels or functions, each of which undertakes different power transmission tasks, while the static contacts and moving contacts are key components in the switching device, which are used to realize the connection and disconnection of the circuit.

[0032] In most cases, each pair of static contacts and moving contacts is used to control a specific power line. When the switching device is in the closed state, the moving contact contacts the static contact to form a current path; when the switching device is opened, the moving contact separates from the static contact to cut off the current.

[0033] The contact separation data analysis module is used to obtain separation data of the dedicated contacts corresponding to the designated line, the separation data including separation speed, separation distance, and vibration amplitude, and evaluate the fault disconnection sensitivity of the dedicated contacts corresponding to the designated line.

[0034] In a preferred embodiment, the method for evaluating the fault disconnection sensitivity of the dedicated contact corresponding to the designated line is: installing a sensor on the moving contact corresponding to the designated line to obtain the separation speed of the moving contact corresponding to the designated line during the disconnection process. and vibration amplitude , extract the separation stop position of the moving contact corresponding to the specified line, compare it with the preset stop position of the moving contact, and obtain the separation deviation distance of the moving contact corresponding to the specified line .

[0035] The sensors include position sensors and vibration sensors.

[0036] Analyze the separation sensitivity of the dedicated contacts corresponding to the specified circuit ,in is the set allowable distance of separation deviation of moving contact, Set the appropriate separation speed for the moving contact.

[0037] Analyze the separation jitter of the dedicated contacts corresponding to the specified line ,in Set the permissible value for the vibration amplitude of the moving contact during the disconnection process, and then evaluate the fault disconnection accuracy of the dedicated contact corresponding to the specified line .

[0038] The present invention accurately cuts off the power supply of the designated line after the circuit breaker receives the circuit breaking command, and performs high-quality disconnection operations by controlling the dedicated moving contacts and static contacts, accurately evaluates the fault disconnection sensitivity of the contacts, and can capture and analyze key parameters of the contact behavior during the disconnection operation, such as separation speed, separation distance and vibration amplitude, so as to accurately evaluate the performance of the contacts during fault disconnection, which is helpful to discover potential contact wear or failure problems in advance.

[0039] The contact performance detection module is used to obtain the stability coefficient of the specified circuit in the electrical system. When they all reach the preset stability coefficient threshold, the circuit breaker performs a closing operation on the dedicated contact corresponding to the specified circuit, evaluates the closing and resetting accuracy of the dedicated contact corresponding to the specified circuit, and then analyzes the operating state excellence coefficient of the dedicated contact corresponding to the specified circuit. .

[0040] In a preferred embodiment, the process of analyzing the operating state excellence coefficient of the dedicated contact corresponding to the specified line is as follows: the time duration of the moving contact corresponding to the specified line in the closing process is obtained by the sensor installed on the moving contact corresponding to the specified line. and vibration amplitude , and extract the connection point position of the moving contact corresponding to the specified line at the corresponding end time of the closing process and the static contact, compare it with the center position of the static contact component structure, and obtain the connection offset distance of the moving contact corresponding to the specified line in the closing process .

[0041] Analyze the closing sensitivity of the dedicated contacts corresponding to the specified circuit ,in The connection offset allowable distance corresponding to the set moving contact closing position, It is the appropriate time for setting the moving contact.

[0042] According to the separation jitter analysis method of the dedicated contact corresponding to the specified line, the closing jitter of the dedicated contact corresponding to the specified line is analyzed in the same way. , evaluate the closing and resetting accuracy of the dedicated contacts corresponding to the specified circuit .

[0043] Analyze the operating status excellence coefficient of the dedicated contacts corresponding to the specified line , It is the evaluation deviation correction factor corresponding to the set operating status excellence coefficient.

[0044] After the fault line is restored to operation, the present invention ensures that the contact can return to its original position smoothly and accurately by real-time monitoring and precise control of the contact closing and resetting process, thus avoiding the occurrence of secondary faults. At the same time, by evaluating the closing and resetting accuracy, the operating state excellence coefficient of the contact is further quantified, which is conducive to improving the power supply quality and stability of the equipment after the equipment is restored to operation.

[0045] The fault response monitoring module is used to record the interval time between the disconnection execution start time and the reset execution end time of the special contact corresponding to the specified line as the fault maintenance time period, detect the operation data of the gas in the gas-insulated metal-enclosed switchgear during the fault maintenance time period, and the operation data includes the uniformity and distribution pressure of the gas distribution, and analyze the gas cooling cycle operation effect coefficient inside the device. , and then evaluate the fault handling effectiveness index of the gas-insulated metal-enclosed switchgear, and determine whether the fault handling effectiveness index meets the standard.

[0046] In a preferred embodiment, the step of analyzing the gas cooling cycle operation effect coefficient inside the device is as follows: the gas distribution uniformity and distribution pressure are monitored in real time by a measuring instrument installed inside the gas-insulated metal-enclosed switchgear, and the gas distribution uniformity at each maintenance time point within the fault maintenance time period is extracted. and distribution pressure , To maintain the time point number, .

[0047] Analysis of the internal pressure drop trend of gas-insulated metal-enclosed switchgear , where The gas is in the fault maintenance period. The distribution pressure at each maintenance time point, To set the reference deviation allowable value, The number of maintenance time points is taken as the probability of gas leakage inside the device.

[0048] Analysis of the internal gas cooling cycle operation effect coefficient of the device ,in Indicates the uniformity of the gas distribution inside the device. Indicates the set appropriate distribution pressure of the gas inside the device.

[0049] The measuring instrument comprises a gas pressure sensor and a gas density meter.

[0050] In a further preferred embodiment, the method for judging whether the fault handling effectiveness index meets the standard is: is the fault handling effectiveness index of the gas-insulated metal-enclosed switchgear. It is compared with the preset fault handling effectiveness index threshold. If it is lower than the preset fault handling effectiveness index threshold, the fault handling effectiveness index is judged to be unsatisfactory.

[0051] The operating state excellence coefficient of the special contact corresponding to the designated line and the operating effect coefficient of the gas cooling cycle inside the device are compared with the corresponding preset division thresholds respectively. If the operating state excellence coefficient of the special contact corresponding to the designated line or the operating effect coefficient of the gas cooling cycle inside the device is lower than the corresponding preset division threshold, the coefficient is recorded as a fault coefficient, thereby identifying whether the operating state excellence coefficient of the special contact corresponding to the designated line and the operating effect coefficient of the gas cooling cycle inside the device are fault coefficients.

[0052] The present invention monitors the key parameters of the gas inside the gas-insulated metal-enclosed switchgear in real time, including gas distribution uniformity and distribution pressure, and analyzes the gas cooling cycle operation effect coefficient inside the device, thereby effectively evaluating the fault handling effectiveness of the entire device and greatly enhancing the real-time perception and prediction capabilities of the equipment's operating status.

[0053] The gas fault troubleshooting module is used to identify whether the gas box inside the device is faulty based on the fault handling effectiveness index not being up to standard, and to troubleshoot the gas inside the gas box.

[0054] In a preferred embodiment, the method of identifying whether the air box inside the device is faulty is: , when the gas cooling cycle operation effect coefficient inside the device is the failure coefficient, the probability of gas leakage inside the extraction device , get the set gas leakage probability safety value ,like , it is determined that the air box is faulty and the cause of the device failure is leakage.

[0055] , Extract the abnormal gas component concentration inside the device through the gas component analyzer , analyze the abnormal index of gas composition inside the device ,in Indicates the normal value of the abnormal gas component concentration set, and obtains the preset abnormal index allowable value ,when It was determined that the gas box was faulty and the cause of the device failure was gas contamination.

[0056] 2. Obtain the historical maintenance records of the gas box from the equipment data storage terminal, and extract the abnormal index of the internal gas composition of the device corresponding to each historical maintenance record and its recording time , analyze the frequency of gas composition changes inside the device ,in Set the reference interval between two historical maintenance records. is a specified constant greater than 0 and less than 1, Number of historical maintenance records. , obtain the preset gas composition change frequency ,when It was determined that the gas tank was faulty and the cause of the device failure was due to defective storage conditions.

[0057] In a further preferred embodiment, the corresponding content of the troubleshooting of the gas inside the gas box includes: obtaining the cause of the device failure, the cause of the device failure includes leakage, gas pollution, and storage condition defects. If the gas pollution cause is not the cause of the device failure, the remaining gas volume of the gas box inside the device is extracted from the device data storage end. , and compare it with the preset remaining gas limit For comparison, if , it is determined that the device needs to be replenished with gas, the preset gas filling amount in the device is obtained, and the difference between it and the remaining gas amount is used as the gas replenishment amount inside the device, and then the gas replenishment operation is performed on the gas box inside the device according to the gas replenishment amount inside the device.

[0058] If the cause of gas contamination is device failure, the gas inside the gas box should be ventilated.

[0059] Furthermore, if the gas leakage or storage condition defects are the cause of the device failure, a fault warning will be issued to the device gas box, thereby reminding the device management personnel to handle it accordingly.

[0060] The contact fault troubleshooting module is used to collect infrared images of the special contacts corresponding to the specified line during the disconnection and closing processes through an infrared detector, analyze the functional integrity indicators of the special contacts corresponding to the specified line, and then evaluate the conductive performance fault index of the special contacts corresponding to the specified line, and compare it with the preset conductive performance fault index threshold. If it exceeds the preset conductive performance fault index threshold, a fault warning is issued for the special contacts corresponding to the specified line.

[0061] In a preferred embodiment, the steps of analyzing the functional integrity index of the dedicated contact corresponding to the designated line are as follows: when the operating state excellence coefficient of the dedicated contact corresponding to the designated line is a fault coefficient, the infrared images of the dedicated contact corresponding to the designated line during the disconnection process and the closing process are recorded as disconnection images and closing images, respectively.

[0062] The standard infrared distribution images of the dedicated contacts corresponding to the specified line during the disconnection process and the closing process are extracted from the data storage end of the equipment, and compared with the disconnection image and the closing image respectively, and the difference areas between the disconnection image and the standard infrared distribution image of the disconnection process are extracted and recorded as the disconnection abnormal areas.

[0063] The difference regions between the closed image and the standard infrared distribution image of the closed process are extracted and recorded as closed abnormal regions.

[0064] Extract the corresponding areas of each disconnected abnormal area and each closed abnormal area , evaluate the apparent burning degree of the dedicated contacts corresponding to the specified circuit , where Set reference areas for disconnected abnormal areas and closed abnormal areas respectively. They are the percentage of apparent burning influence of the corresponding areas of the disconnected abnormal area and the closed abnormal area, respectively. is the number of the disconnection abnormal area, , is the number of the closed abnormal area, .

[0065] For example, the set apparent burning influence ratios of the areas corresponding to the disconnected abnormal area and the closed abnormal area are respectively After the special contact performs the closing operation, the line of the power system starts to operate normally. If the abnormal area during the closing process of the special contact is too large, there will be a safety threat to the operation of the line of the power system. In comparison, after the special contact is disconnected, the corresponding power line stops running, and its abnormal area has less impact on the fault of the power system. Therefore, the proportion of the set apparent burning effect of the disconnection abnormal area is smaller than that of the corresponding area of ​​the closing abnormal area.

[0066] Obtain the transient current of the dedicated contact corresponding to the specified line at the start and end time of the disconnection process and the closing process from the device data storage end, and record them as , , evaluate the dynamic current stability coefficient of the dedicated contact corresponding to the specified line ,in They respectively represent the normal change rate of the current corresponding to the disconnection process and the closing process of the set special contact.

[0067] Analyze the functional integrity indicators of the dedicated contacts corresponding to the specified circuit , e is a natural constant.

[0068] In a further preferred embodiment, the evaluation method of the conductivity performance fault index of the dedicated contact corresponding to the designated circuit is as follows: extracting the cause of the gas box failure, and when the cause of the failure is gas pollution, using the abnormal index of the gas composition inside the device It is the failure influencing factor of gas composition on the conductive performance.

[0069] When the cause of the failure is due to storage condition defects, the frequency of abnormal changes in the gas composition inside the device It is the failure influencing factor of gas composition on the conductive performance.

[0070] Obtain the fault influence factor of gas composition on electrical conductivity , evaluate the conductivity performance fault index of the dedicated contact corresponding to the specified line .

[0071] The present invention obtains the concentration of abnormal gas components inside the device, performs troubleshooting on the device gas box, locates the cause of the gas box failure, and then intelligently troubleshoots and processes the gas in the gas box to ensure that the gas environment inside the gas-insulated metal-enclosed switchgear is always in a good state. It helps operation and maintenance personnel to quickly locate possible internal defects or fault locations, so as to more effectively carry out targeted fault processing, shorten troubleshooting time, and improve equipment availability.

[0072] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A gas-insulated metal-enclosed switch system based on artificial intelligence, characterized in that: The system includes: The fault location module is used to analyze the stability coefficient of each line in the electrical system in real time, screen out the faulty line, record it as a designated line, and send a designated line breaking instruction to the circuit breaker; A circuit breaker control module is used to extract a circuit breaking instruction through the circuit breaker, thereby cutting off the power supply of the designated line, and at the same time controlling the dedicated contacts corresponding to the designated line to perform a disconnection operation, wherein the dedicated contacts include a moving contact and a stationary contact; A contact separation data analysis module is used to obtain separation data of a dedicated contact corresponding to a specified line and evaluate the fault disconnection sensitivity of the dedicated contact corresponding to the specified line; The contact performance detection module is used to perform closing operations on the dedicated contacts corresponding to the specified line, evaluate the closing and resetting accuracy of the dedicated contacts corresponding to the specified line, and then analyze the operating status excellence coefficient of the dedicated contacts corresponding to the specified line ; Fault response monitoring module, used to record the interval between the disconnection execution start time and the reset execution end time of the dedicated contact corresponding to the specified line as the fault maintenance time period, and analyze the internal gas cooling cycle operation effect coefficient of the device , and then evaluate the fault handling effectiveness index of the gas-insulated metal-enclosed switchgear, and determine whether the fault handling effectiveness index meets the standard; A gas fault troubleshooting module is used to identify whether the gas box inside the device is faulty and troubleshoot the gas inside the gas box based on the failure of the fault handling effectiveness index to be met; The contact fault troubleshooting module is used to collect infrared images of the special contacts corresponding to the specified line during the disconnection and closing processes, analyze the functional integrity index of the special contacts corresponding to the specified line, and then evaluate the conductive performance fault index of the special contacts corresponding to the specified line; The contents of analyzing the stability coefficient of each line in the electrical system include: Extract the voltage and current of each line in the electrical system at each monitoring time point within the set detection time period, and record it as , is the line number, , is the number of the monitoring time point, ; Analyze the stability factor of each line in the electrical system ,in Respectively represent The line is within the set detection time period. The voltage and current at each monitoring time point are They represent the voltage and current floating allowable values ​​between the two set monitoring time points. is the number of monitoring time points; Compare the stability coefficient of each line in the electrical system with the preset stability coefficient threshold, and select the line in the electrical system whose stability coefficient is lower than the preset stability coefficient threshold as the fault line; The method for evaluating the fault disconnection sensitivity of the dedicated contact corresponding to the specified line is: A sensor is installed on the moving contact corresponding to the specified line to obtain the separation speed and vibration amplitude of the moving contact corresponding to the specified line during the disconnection process, and the separation stop position of the moving contact corresponding to the specified line is extracted, and the separation stop position is compared with the preset stop position of the moving contact to obtain the separation deviation distance of the moving contact corresponding to the specified line; Analyze the separation sensitivity of the dedicated contacts corresponding to the specified circuit and separation jitter , and then evaluate the fault disconnection accuracy of the dedicated contacts corresponding to the specified line ; The analysis of the operation status excellence coefficient of the dedicated contact corresponding to the specified circuit is as follows: Get the duration of the closing process of the moving contact of the specified line and vibration amplitude , and extract the connection point position of the moving contact corresponding to the specified line at the corresponding end time of the closing process and the static contact, compare it with the center position of the static contact component structure, and obtain the connection offset distance of the moving contact corresponding to the specified line in the closing process ; Analyze the closing sensitivity of the dedicated contacts corresponding to the specified circuit ,in The connection offset allowable distance corresponding to the set moving contact closing position, The appropriate time for setting the moving contact; Analyze the closing jitter of the dedicated contacts corresponding to the specified circuit , and then evaluate the closing and resetting accuracy of the dedicated contacts corresponding to the specified circuit ; Analyze the operating status excellence coefficient of the dedicated contacts corresponding to the specified line , The evaluation deviation correction factor corresponding to the set operating status excellence coefficient; The steps for the effect coefficient of the gas cooling cycle operation inside the analysis device are as follows: The gas distribution uniformity and pressure are monitored in real time by measuring instruments installed inside the gas-insulated metal-enclosed switchgear, from which the gas distribution uniformity at each maintenance time point within the fault maintenance period is extracted. and distribution pressure , To maintain the time point number, ; Analysis of the internal pressure drop trend of gas-insulated metal-enclosed switchgear , where The gas is in the fault maintenance period. The distribution pressure at each maintenance time point, To set the reference deviation allowable value, The number of maintenance time points is taken as the probability of gas leakage inside the device; Analysis of the internal gas cooling cycle operation effect coefficient of the device ,in Indicates the uniformity of the gas distribution inside the device. Indicates the set appropriate distribution pressure of the gas inside the device; The method for judging whether the fault handling effectiveness index meets the standard is as follows: by is a fault handling effectiveness index of the gas-insulated metal-enclosed switchgear, which is compared with a preset fault handling effectiveness index threshold value. If it is lower than the preset fault handling effectiveness index threshold value, the fault handling effectiveness index is judged to be unsatisfactory. Identify whether the operation status excellence coefficient of the special contact corresponding to the specified circuit and the operation effect coefficient of the gas cooling cycle inside the device are fault coefficients; The steps of analyzing the functional integrity index of the dedicated contact corresponding to the specified circuit are as follows: When the operation state excellence coefficient of the dedicated contact corresponding to the designated line is the fault coefficient, the infrared images of the dedicated contact corresponding to the designated line in the disconnection process and the closing process are recorded as the disconnection image and the closing image respectively; Extract the standard infrared distribution image of the special contact corresponding to the designated line during the disconnection process and the closing process, compare it with the disconnection image and the closing image respectively, extract the difference areas between the disconnection image and the standard infrared distribution image of the disconnection process, and record them as the abnormal disconnection areas; Extract the difference areas between the closed image and the standard infrared distribution image of the closed process, and record them as closed abnormal areas; Extract the corresponding areas of each disconnected abnormal area and each closed abnormal area , evaluate the apparent burning degree of the dedicated contacts corresponding to the specified circuit , where Set reference areas for disconnected abnormal areas and closed abnormal areas respectively. They are the percentage of apparent burning influence of the corresponding areas of the disconnected abnormal area and the closed abnormal area, respectively. is the number of the disconnection abnormal area, , is the number of the closed abnormal area, ; Get the transient current of the dedicated contact corresponding to the specified line at the start time and end time of the disconnection process and the closing process, respectively recorded as , , evaluate the dynamic current stability coefficient of the dedicated contact corresponding to the specified line ,in Respectively represent the normal change rate of current corresponding to the disconnection process and closing process of the set special contact; Analyze the functional integrity indicators of the dedicated contacts corresponding to the specified circuit , e is a natural constant; The evaluation method of evaluating the conductivity fault index of the dedicated contact corresponding to the designated circuit is as follows: obtaining the fault influence factor of the gas composition on the conductivity , evaluate the conductivity performance fault index of the dedicated contact corresponding to the specified line .

2. The artificial intelligence-based gas-insulated metal-enclosed switch system according to claim 1, characterized in that: The method of identifying whether the air box inside the device is faulty is: , when the gas cooling cycle operation effect coefficient inside the device is the failure coefficient, the probability of gas leakage inside the extraction device , get the set gas leakage probability safety value ,like , it is determined that the gas box is faulty and the cause of the device failure is leakage; , Extraction device internal abnormal gas component concentration , analyze the abnormal index of gas composition inside the device ,in Indicates the normal value of the abnormal gas component concentration set, and obtains the preset abnormal index allowable value ,when When the gas box is faulty, it is determined that the cause of the device failure is gas contamination; , obtain the historical maintenance records of the gas box, and extract the abnormal index of the internal gas composition of the device corresponding to each historical maintenance record and its recording time , analyze the frequency of gas composition changes inside the device ,in Set the reference interval between two historical maintenance records. is a specified constant greater than 0 and less than 1, Number of historical maintenance records. , obtain the preset gas composition change frequency ,when It was determined that the gas tank was faulty and the cause of the device failure was due to defective storage conditions.

3. The artificial intelligence-based gas-insulated metal-enclosed switch system according to claim 2, characterized in that: The corresponding contents of the said checking and processing of the gas inside the gas box include: Obtain the cause of the device failure. If the gas pollution is not the cause of the device failure, extract the remaining gas volume in the gas box inside the device. , and compare it with the preset remaining gas limit For comparison, if , it is determined that the device needs to be supplemented with gas, the preset gas filling volume in the device is obtained, and the difference between the preset gas filling volume and the remaining gas volume is used as the gas replenishment volume in the device; If the cause of gas contamination is device failure, the gas inside the gas box should be ventilated.

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