CN116643205B - Leakage current detection method, system and medium for power transmission circuit - Google Patents

Leakage current detection method, system and medium for power transmission circuit Download PDF

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Publication number
CN116643205B
CN116643205B CN202310594983.5A CN202310594983A CN116643205B CN 116643205 B CN116643205 B CN 116643205B CN 202310594983 A CN202310594983 A CN 202310594983A CN 116643205 B CN116643205 B CN 116643205B
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circuit
data
leakage current
current detection
sub
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CN116643205A (en
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陈长青
周奎
卢钱杭
何楚培
艾旭霞
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Hunan Electric Bridge Technology Co ltd
Hunan City University
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Hunan Electric Bridge Technology Co ltd
Hunan City University
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
    • G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements

Abstract

The application provides a leakage current detection method, a leakage current detection system and a leakage current detection medium for a power transmission circuit. The method comprises the following steps: and analyzing and processing according to the circuit layout data and the circuit connection data to obtain circuit structure performance data, dividing the power transmission circuit according to the circuit structure performance data, processing according to the electric parameter detection data and the insulator data of each sub-circuit to obtain circuit loop characteristic parameters and circuit insulation performance parameters, processing according to the circuit layout data and the circuit connection data corresponding to each sub-circuit and the circuit environment data to obtain circuit environment influence factors corresponding to each sub-circuit, analyzing and processing according to the circuit loop characteristic parameters, the circuit insulation performance parameters and the circuit environment influence factors to obtain leakage current detection parameters, and finally judging the leakage current condition of each sub-circuit according to the threshold comparison result of the leakage current detection parameters. The application can realize the purpose of quick and accurate positioning of the leakage circuit.

Description

Leakage current detection method, system and medium for power transmission circuit
Technical Field
The application relates to the technical field of leakage detection, in particular to a leakage current detection method, a leakage current detection system and a leakage current detection medium for a power transmission circuit.
Background
In the power transmission process, the power transmission wire and the insulating equipment can cause electric leakage due to poor insulation caused by moisture invasion, pollutants, external damage, aging and other reasons, when electric leakage occurs, the power consumption of different degrees can be increased, the phenomena of overload and short circuit can occur along with the development of the electric leakage degree, the power supply and the equipment are burnt out slightly, and the fire disaster can be caused seriously. Moreover, when the air humidity is high, a building contacted with the electrified body is electrified, so that safety accidents are easy to cause, leakage current detection of a power transmission circuit is very necessary, and in a huge power transmission circuit system, how to quickly and accurately position the leakage circuit is a difficult problem, so that an effective technical solution is needed.
Disclosure of Invention
The application aims to provide a leakage current detection method, a system and a medium of a power transmission circuit, wherein the power transmission circuit is divided into a plurality of sub-circuits according to circuit structure performance, then analysis processing is carried out according to circuit loop characteristics of each sub-circuit in combination with circuit insulation performance and circuit environment to obtain leakage current detection parameters, the leakage current detection parameters are subjected to threshold comparison with preset leakage current detection thresholds, and the leakage current condition of each sub-circuit is judged according to threshold comparison results, so that the purpose of rapidly and accurately positioning a leakage circuit can be realized.
The application also provides a leakage current detection method of the power transmission circuit, which comprises the following steps:
acquiring line layout data and circuit connection data of a preset power transmission circuit;
analyzing and processing according to the line layout data and the circuit connection data to obtain circuit structure performance data, and dividing the power transmission circuit into sub-circuits according to the circuit structure performance data;
acquiring electric parameter detection data, insulator data and line environment data of each sub-circuit;
obtaining a characteristic parameter of a circuit by processing the electrical parameter detection data, and obtaining a circuit insulation performance parameter by processing the insulator data;
analyzing and calculating according to the circuit layout data and the circuit connection data corresponding to each sub-circuit and combining the circuit environment data to obtain a circuit environment influence factor corresponding to each sub-circuit;
analyzing and processing according to the characteristic parameters of the electric loop and the circuit insulation performance parameters and the circuit environment influence factors to obtain leakage current detection parameters;
and comparing the leakage current detection parameter with a preset leakage current detection threshold value, and judging the leakage current condition of each sub-circuit according to a threshold value comparison result.
Optionally, in the leakage current detection method of a power transmission circuit of the present application, the obtaining circuit layout data and circuit connection data of a preset power transmission circuit includes:
acquiring line layout data of a preset power transmission circuit, wherein the line layout data comprises line layout structure data, line function data and line layout position data;
and acquiring circuit connection data of the power transmission circuit, wherein the circuit connection data comprise circuit connection contact data and line crossing data.
Optionally, in the leakage current detection method of a power transmission circuit according to the present application, the analyzing and processing are performed according to the line layout data and the circuit connection data to obtain circuit structure performance data, and the sub-circuit division is performed on the power transmission circuit according to the circuit structure performance data, including:
inputting the circuit arrangement structure data, the circuit function data and the circuit connection point data into a preset circuit structure performance database for analysis and identification to obtain circuit structure performance data;
and dividing the power transmission circuit into sub-circuits according to the circuit structure performance data.
Optionally, in the leakage current detection method of a power transmission circuit according to the present application, the obtaining electrical parameter detection data, insulator data, and line environment data of each sub-circuit includes:
Acquiring detection data of electric parameters of each sub-circuit, wherein the detection data comprises input voltage data, output voltage data, loop current vector sum data;
acquiring insulator data of each sub-circuit, wherein the insulator data comprises insulator breakage data, insulator corona discharge data and insulator thermal effect data;
and acquiring line environment data of each sub-circuit, wherein the line environment data comprises geographic environment data and meteorological environment data.
Optionally, in the leakage current detection method of a power transmission circuit according to the present application, the obtaining the characteristic parameter of the circuit according to the electrical parameter detection data processing, and obtaining the insulating performance parameter of the circuit according to the insulator data processing, includes:
inputting the input voltage data, the output voltage data, the loop current vector and the loop current vector into a preset electric loop characteristic detection model for processing to obtain electric loop characteristic data;
the insulator damage data, the insulator corona discharge data and the insulator thermal effect data are respectively processed to obtain corresponding insulation characteristic factors;
calculating and obtaining circuit insulation performance parameters according to the insulation characteristic factors and the insulator data;
the calculation formula of the circuit insulation performance parameter is as follows:
Wherein k=3, t y Is the insulating performance parameter of the circuit, w i Is the insulation characteristic factor corresponding to the ith data in the insulator breakage data, the insulator corona discharge data and the insulator thermal effect data, and P (i) is the insulator breakage data, the insulator corona discharge data and the insulatorIth data, delta, in thermal effect data i Is a preset characteristic coefficient.
Optionally, in the leakage current detection method of a power transmission circuit according to the present application, the analyzing and calculating according to the line layout data and the circuit connection data corresponding to each sub-circuit in combination with the line environment data to obtain the circuit environment influence factor corresponding to each sub-circuit includes:
calculating and obtaining a circuit environment influence factor according to the line wiring position data and the line crossing data by combining the geographic environment data and the meteorological environment data;
the calculation formula of the circuit environment influence factor is as follows:
wherein lambda is k C is a circuit environmental impact factor t Routing position data for the line F d For line crossing data, Q s K is geographical environment data c Is weather environment data, sigma,μ、ε、/>Is a preset characteristic coefficient.
Optionally, in the leakage current detection method of a power transmission circuit according to the present application, the analyzing the leakage current detection parameter according to the electrical loop characteristic parameter in combination with the circuit insulation performance parameter and the circuit environmental impact factor includes:
Inputting the characteristic parameters of the circuit, the insulating performance parameters of the circuit and the environmental impact factors of the circuit into a preset leakage current detection model for processing to obtain leakage current detection parameters;
the calculation formula of the leakage current detection parameter is as follows:
wherein I is R Lambda is the leakage current detection parameter k U is a circuit environment influence factor m For characteristic parameters of the electric circuit, T y Is the insulating performance parameter of the circuit, tau and omega are preset performance characteristic coefficients, delta n The leakage current detection coefficient is preset.
Optionally, in the method for detecting a leakage current of a power transmission circuit according to the present application, the comparing the leakage current detection parameter with a preset leakage current detection threshold value, and determining the leakage current condition of each sub-circuit according to the threshold value comparison result includes:
comparing the leakage current detection parameter with a preset leakage current detection threshold value;
if the leakage current detection parameter is smaller than the preset leakage current detection threshold value, judging that the sub-circuit does not leak electricity;
and if the leakage current detection parameter is larger than the preset leakage current detection threshold value, judging the leakage of the sub-circuit and marking.
In a second aspect, the present application provides a leakage current detection system for a power transmission circuit, the system comprising: the power transmission circuit leakage current detection method comprises a memory and a processor, wherein the memory comprises a program of the power transmission circuit leakage current detection method, and the program of the power transmission circuit leakage current detection method realizes the following steps when being executed by the processor:
Acquiring line layout data and circuit connection data of a preset power transmission circuit;
analyzing and processing according to the line layout data and the circuit connection data to obtain circuit structure performance data, and dividing the power transmission circuit into sub-circuits according to the circuit structure performance data;
acquiring electric parameter detection data, insulator data and line environment data of each sub-circuit;
obtaining a characteristic parameter of a circuit by processing the electrical parameter detection data, and obtaining a circuit insulation performance parameter by processing the insulator data;
analyzing and calculating according to the circuit layout data and the circuit connection data corresponding to each sub-circuit and combining the circuit environment data to obtain a circuit environment influence factor corresponding to each sub-circuit;
analyzing and processing according to the characteristic parameters of the electric loop and the circuit insulation performance parameters and the circuit environment influence factors to obtain leakage current detection parameters;
and comparing the leakage current detection parameter with a preset leakage current detection threshold value, and judging the leakage current condition of each sub-circuit according to a threshold value comparison result.
In a third aspect, the present application also provides a computer readable storage medium, including therein a leakage current detection method program of a power transmission circuit, which when executed by a processor, implements the steps of the leakage current detection method of a power transmission circuit as described in any one of the above.
As can be seen from the foregoing, according to the method, system and medium for detecting leakage current of a power transmission circuit provided by the embodiments of the present application, circuit structure performance data is obtained by analyzing and processing circuit layout data and circuit connection data, sub-circuit division is performed on the power transmission circuit according to the circuit structure performance data, electric loop characteristic parameters and circuit insulation performance parameters are obtained by processing electric parameter detection data and insulator data of each sub-circuit, circuit environment influence factors corresponding to each sub-circuit are obtained by processing circuit layout data and circuit connection data corresponding to each sub-circuit in combination with circuit environment data, leakage current detection parameters are obtained by analyzing and processing circuit insulation performance parameters and circuit environment influence factors according to the electric loop characteristic parameters, and finally leakage current conditions of each sub-circuit are determined according to threshold comparison results of the leakage current detection parameters. The application can realize the purpose of quick and accurate positioning of the leakage circuit.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a leakage current detection method of a power transmission circuit according to an embodiment of the present application;
fig. 2 is a flowchart of obtaining circuit layout data and circuit connection data in the leakage current detection method of the power transmission circuit according to the embodiment of the present application;
fig. 3 is a flowchart of sub-circuit division of a power transmission circuit according to a leakage current detection method of the power transmission circuit provided by an embodiment of the present application;
fig. 4 is a schematic structural diagram of a leakage current detection system of a power transmission circuit according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 1 is a flowchart of a leakage current detection method of a power transmission circuit according to some embodiments of the application. The leakage current detection method of the power transmission circuit is used in terminal equipment, such as computers, mobile phone terminals and the like. The leakage current detection method of the power transmission circuit comprises the following steps:
s101, obtaining line layout data and circuit connection data of a preset power transmission circuit;
s102, analyzing and processing according to the circuit layout data and the circuit connection data to obtain circuit structure performance data, and dividing the power transmission circuit into sub-circuits according to the circuit structure performance data;
s103, acquiring electric parameter detection data, insulator data and line environment data of each sub-circuit;
s104, processing the detection data according to the electrical parameters to obtain the characteristic parameters of the circuit, and processing the data according to the insulator to obtain the insulation performance parameters of the circuit;
S105, analyzing and calculating according to the circuit layout data and the circuit connection data corresponding to each sub-circuit and combining the circuit environment data to obtain a circuit environment influence factor corresponding to each sub-circuit;
s106, analyzing and processing according to the characteristic parameters of the electric loop and the circuit insulation performance parameters and the circuit environment influence factors to obtain leakage current detection parameters;
and S107, comparing the leakage current detection parameter with a preset leakage current detection threshold value, and judging the leakage current condition of each sub-circuit according to a threshold value comparison result.
It is to be noted that the application realizes the purpose of quick and accurate detection of the leakage circuit by carrying out sub-circuit splitting on the power transmission circuit and carrying out comprehensive analysis on the voltage and current detection result of each sub-circuit, the working performance of the insulator equipment and the environment where the circuit is located, firstly, carrying out analysis processing according to the circuit layout data and the circuit connection data to obtain circuit structure performance data, namely data reflecting the circuit structure and the circuit performance, then carrying out sub-circuit division on the power transmission circuit according to the circuit structure performance data, obtaining circuit characteristic parameters and circuit insulation performance parameters according to the electric parameter detection data and the insulator data processing of each sub-circuit, wherein the electric parameter detection data refers to the voltage and current detection data of the circuit, the electric circuit characteristic parameters refer to the parameters reflecting the voltage and current conditions of the circuit, the circuit insulation performance parameters are parameters reflecting the circuit insulation performance, then the circuit environment influence factors corresponding to all the sub-circuits are obtained by processing according to the circuit layout data and the circuit connection data corresponding to all the sub-circuits and the circuit environment data, namely the environment factors influencing the sub-circuits are obtained by processing according to the circuit layout positions corresponding to all the sub-circuits and the wiring data at the circuit connection intersections and the circuit environment, then the leakage current detection parameters are obtained by analyzing and processing according to the circuit characteristic parameters, the circuit insulation performance parameters and the circuit environment influence factors, the leakage current detection parameters are parameters reflecting the current leakage condition of the circuit, and finally the leakage current condition of all the sub-circuits is judged according to the threshold comparison result of the leakage current detection parameters. The application can realize the purpose of quick and accurate positioning of the leakage circuit.
Referring to fig. 2, fig. 2 is a flowchart of a method for detecting leakage current of a power transmission circuit according to some embodiments of the present application to obtain line layout data and circuit connection data. According to the embodiment of the application, the circuit layout data and the circuit connection data of the preset power transmission circuit are obtained specifically as follows:
s201, obtaining line layout data of a preset power transmission circuit, wherein the line layout data comprises line layout structure data, line function data and line layout position data;
s202, circuit connection data of the power transmission circuit are obtained, wherein the circuit connection data comprise circuit connection contact data and line crossing data.
In order to divide the power transmission circuit into sub-circuits according to the layout structure, the circuit function and the connection node condition of the circuit, firstly, the circuit layout data of the preset power transmission circuit including the circuit layout structure data, the circuit function data and the circuit wiring position data is obtained, and then the circuit connection data of the power transmission circuit including the circuit connection node data and the circuit crossing data is obtained.
Referring to fig. 3, fig. 3 is a flowchart illustrating a sub-circuit division of a power transmission circuit according to a leakage current detection method of the power transmission circuit according to some embodiments of the present application. According to the embodiment of the application, the circuit structure performance data is obtained by analyzing and processing the circuit layout data and the circuit connection data, and the power transmission circuit is divided into sub-circuits according to the circuit structure performance data, specifically:
S301, inputting circuit arrangement structure data, circuit function data and circuit connection contact data into a preset circuit structure performance database for analysis and identification to obtain circuit structure performance data;
s302, sub-circuit division is carried out on the power transmission circuit according to the circuit structure performance data.
In order to divide the power transmission circuit into sub-circuits, the circuit configuration data, the circuit function data and the circuit connection contact data are input into a preset circuit configuration performance database for analysis and identification, so as to obtain the circuit configuration performance data, wherein the circuit configuration performance database is a database for matching the circuit configuration performance according to the circuit configuration data, the circuit function data and the circuit connection contact data, and then the power transmission circuit is divided into sub-circuits according to the circuit configuration performance data.
According to the embodiment of the invention, the acquisition of the electrical parameter detection data, the insulator data and the line environment data of each sub-circuit is specifically as follows:
acquiring detection data of electric parameters of each sub-circuit, wherein the detection data comprises input voltage data, output voltage data, loop current vector sum data;
acquiring insulator data of each sub-circuit, wherein the insulator data comprises insulator breakage data, insulator corona discharge data and insulator thermal effect data;
And acquiring line environment data of each sub-circuit, wherein the line environment data comprises geographic environment data and meteorological environment data.
After the power transmission circuit is divided into sub-circuits, voltage and current conditions, circuit insulation performance and surrounding environments of the circuit are detected, so that the leakage condition of the circuit can be accurately judged, electric parameter detection data of the sub-circuits are firstly obtained, the electric parameter detection data comprise input voltage data, output voltage data and loop current vector and data, the loop current vector and data are used for judging whether current inflow and outflow of each node are consistent or not, further the leakage condition of the loop is judged, insulator data of the sub-circuits are obtained and obtained, the insulator data comprise insulator breakage data, insulator corona discharge data and insulator heat effect data, the insulator corona discharge data and the insulator heat effect data are indexes for reflecting the degradation degree of the insulator, and then the line environment data of the sub-circuits are obtained, wherein the line environment data comprise geographic environment data and weather environment data.
According to the embodiment of the invention, the circuit characteristic parameter is obtained by processing the electrical parameter detection data, and the circuit insulation performance parameter is obtained by processing the insulator data, specifically:
Inputting the input voltage data, the output voltage data, the loop current vector and the loop current vector into a preset electric loop characteristic detection model for processing to obtain electric loop characteristic data;
the insulator damage data, the insulator corona discharge data and the insulator thermal effect data are respectively processed to obtain corresponding insulation characteristic factors;
calculating and obtaining circuit insulation performance parameters according to the insulation characteristic factors and the insulator data;
the calculation formula of the circuit insulation performance parameter is as follows:
wherein k=3，T y Is the insulating performance parameter of the circuit, w i Is the insulation characteristic factor corresponding to the ith data in the insulator breakage data, the insulator corona discharge data and the insulator thermal effect data, and P (i) is the ith data in the insulator breakage data, the insulator corona discharge data and the insulator thermal effect data, delta i Is a preset characteristic coefficient.
In order to better reflect the electric loop characteristics of the circuit and the insulation performance of the circuit, input voltage data, output voltage data, loop current vector and data are input into a preset electric loop characteristic detection model for processing to obtain the electric loop characteristics, the electric loop characteristic detection model is a model obtained by training a large number of historical samples of input voltage data, output voltage data, loop current vector and data and the electric loop characteristics, the corresponding output electric loop characteristics can be obtained by inputting relevant information for processing, the insulator breakage data, insulator corona discharge data and insulator thermal effect data are respectively processed to obtain corresponding insulation characteristic factors, finally, the circuit insulation performance parameters are obtained by combining the insulation characteristic factors with the insulator data, and the program formula of the insulation characteristic factors is as follows:
Wherein k= 3,w i The insulation characteristic factors corresponding to the ith data in the insulator breakage data, the insulator corona discharge data and the insulator thermal effect data are adopted, and the P (i) is the ith data in the insulator breakage data, the insulator corona discharge data and the insulator thermal effect data.
According to the embodiment of the invention, the circuit environment influence factors corresponding to each sub-circuit are obtained by analyzing and calculating the circuit layout data and the circuit connection data corresponding to each sub-circuit in combination with the circuit environment data, specifically:
calculating and obtaining a circuit environment influence factor according to the line wiring position data and the line crossing data by combining the geographic environment data and the meteorological environment data;
the calculation formula of the circuit environment influence factor is as follows:
wherein lambda is k C is a circuit environmental impact factor t Routing position data for the line F d For line crossing data, Q s K is geographical environment data c Is weather environment data, sigma,μ、ε、/>Is a preset characteristic coefficient (which can be obtained through inquiring a circuit structure performance database).
It should be noted that, in order to better measure the geographical environment and weather environment of the area where the line is located and possible leakage influence of multiple line cross-connection wires on the power transmission circuit, the circuit environment influence factor is obtained by combining the geographical environment data and the weather environment data according to the line wiring position data and the line cross-over data.
According to an embodiment of the present invention, the analyzing and processing are performed according to the electrical loop characteristic parameter in combination with the circuit insulation performance parameter and the circuit environmental impact factor to obtain a leakage current detection parameter, which specifically includes:
inputting the characteristic parameters of the circuit, the insulating performance parameters of the circuit and the environmental impact factors of the circuit into a preset leakage current detection model for processing to obtain leakage current detection parameters;
the calculation formula of the leakage current detection parameter is as follows:
wherein I is R Reference for leakage current detectionNumber lambda k U is a circuit environment influence factor m For characteristic parameters of the electric circuit, T y Is the insulating performance parameter of the circuit, tau and omega are preset performance characteristic coefficients, delta n For presetting the leakage current detection coefficient, the characteristic coefficient and the leakage current detection coefficient are obtained through inquiring a circuit structure performance database.
In order to realize more accurate judgment of the current leakage condition, the characteristic parameters of the circuit, the insulating performance parameters of the circuit and the environmental influence factors of the circuit are input into a preset leakage current detection model to be processed, leakage current detection parameters are obtained, and the circuit leakage condition is judged according to the leakage current detection parameters.
According to the embodiment of the invention, the leakage current detection parameter is compared with a preset leakage current detection threshold value, and the leakage current condition of each sub-circuit is judged according to the threshold value comparison result, specifically:
Comparing the leakage current detection parameter with a preset leakage current detection threshold value;
if the leakage current detection parameter is smaller than the preset leakage current detection threshold value, judging that the sub-circuit does not leak electricity;
and if the leakage current detection parameter is larger than the preset leakage current detection threshold value, judging the leakage of the sub-circuit and marking.
It should be noted that, in order to evaluate the current leakage condition of each sub-circuit, the leakage current detection parameter is compared with a preset leakage current detection threshold value, if the leakage current detection parameter is smaller than the preset leakage current detection threshold value, the sub-circuit is determined not to leak, and if the leakage current detection parameter is larger than the preset leakage current detection threshold value, the sub-circuit is determined to leak and the sub-circuit is marked with leakage.
According to an embodiment of the present invention, further comprising:
comparing and analyzing the leakage current detection parameters of each sub-circuit to obtain contrast deviation values of each sub-circuit;
calculating the average value of the contrast deviation of all the sub-circuits according to the contrast deviation value of each sub-circuit;
and marking the corresponding sub-circuit with the contrast deviation value exceeding the contrast deviation average value as an abnormal sub-circuit, and prompting or early warning.
The comparison is performed according to the leakage detection result of each sub-circuit and the leakage detection result of other sub-circuits to obtain a corresponding comparison result, and if the contrast deviation of a certain sub-circuit obviously exceeds the contrast deviation of other sub-circuits, the leakage risk is indicated, and the leakage risk is required to be indicated.
As shown in fig. 4, the present invention also discloses a leakage current detection system 4 of a power transmission circuit, which includes a memory 41 and a processor 42, where the memory includes a leakage current detection method program of the power transmission circuit, and when the leakage current detection method program of the power transmission circuit is executed by the processor, the following steps are implemented:
acquiring line layout data and circuit connection data of a preset power transmission circuit;
analyzing and processing according to the line layout data and the circuit connection data to obtain circuit structure performance data, and dividing the power transmission circuit into sub-circuits according to the circuit structure performance data;
acquiring electric parameter detection data, insulator data and line environment data of each sub-circuit;
obtaining a characteristic parameter of a circuit by processing the electrical parameter detection data, and obtaining a circuit insulation performance parameter by processing the insulator data;
Analyzing and calculating according to the circuit layout data and the circuit connection data corresponding to each sub-circuit and combining the circuit environment data to obtain a circuit environment influence factor corresponding to each sub-circuit;
analyzing and processing according to the characteristic parameters of the electric loop and the circuit insulation performance parameters and the circuit environment influence factors to obtain leakage current detection parameters;
and comparing the leakage current detection parameter with a preset leakage current detection threshold value, and judging the leakage current condition of each sub-circuit according to a threshold value comparison result.
It is to be noted that the application realizes the purpose of quick and accurate detection of the leakage circuit by carrying out sub-circuit splitting on the power transmission circuit and carrying out comprehensive analysis on the voltage and current detection result of each sub-circuit, the working performance of the insulator equipment and the environment where the circuit is located, firstly, carrying out analysis processing according to the circuit layout data and the circuit connection data to obtain circuit structure performance data, namely data reflecting the circuit structure and the circuit performance, then carrying out sub-circuit division on the power transmission circuit according to the circuit structure performance data, obtaining circuit characteristic parameters and circuit insulation performance parameters according to the electric parameter detection data and the insulator data processing of each sub-circuit, wherein the electric parameter detection data refers to the voltage and current detection data of the circuit, the electric circuit characteristic parameters refer to the parameters reflecting the voltage and current conditions of the circuit, the circuit insulation performance parameters are parameters reflecting the circuit insulation performance, then the circuit environment influence factors corresponding to all the sub-circuits are obtained by processing according to the circuit layout data and the circuit connection data corresponding to all the sub-circuits and the circuit environment data, namely the environment factors influencing the sub-circuits are obtained by processing according to the circuit layout positions corresponding to all the sub-circuits and the wiring data at the circuit connection intersections and the circuit environment, then the leakage current detection parameters are obtained by analyzing and processing according to the circuit characteristic parameters, the circuit insulation performance parameters and the circuit environment influence factors, the leakage current detection parameters are parameters reflecting the current leakage condition of the circuit, and finally the leakage current condition of all the sub-circuits is judged according to the threshold comparison result of the leakage current detection parameters. The application can realize the purpose of quick and accurate positioning of the leakage circuit.
According to the embodiment of the invention, the circuit layout data and the circuit connection data of the preset power transmission circuit are obtained specifically as follows:
acquiring line layout data of a preset power transmission circuit, wherein the line layout data comprises line layout structure data, line function data and line layout position data;
and acquiring circuit connection data of the power transmission circuit, wherein the circuit connection data comprise circuit connection contact data and line crossing data.
In order to divide the power transmission circuit into sub-circuits according to the layout structure, the circuit function and the connection node condition of the circuit, firstly, the circuit layout data of the preset power transmission circuit including the circuit layout structure data, the circuit function data and the circuit wiring position data is obtained, and then the circuit connection data of the power transmission circuit including the circuit connection node data and the circuit crossing data is obtained.
According to the embodiment of the invention, the circuit structure performance data is obtained by analyzing and processing the circuit layout data and the circuit connection data, and the power transmission circuit is divided into sub-circuits according to the circuit structure performance data, specifically:
inputting the circuit arrangement structure data, the circuit function data and the circuit connection point data into a preset circuit structure performance database for analysis and identification to obtain circuit structure performance data;
And dividing the power transmission circuit into sub-circuits according to the circuit structure performance data.
In order to divide the power transmission circuit into sub-circuits, the circuit configuration data, the circuit function data and the circuit connection contact data are input into a preset circuit configuration performance database for analysis and identification, so as to obtain the circuit configuration performance data, wherein the circuit configuration performance database is a database for matching the circuit configuration performance according to the circuit configuration data, the circuit function data and the circuit connection contact data, and then the power transmission circuit is divided into sub-circuits according to the circuit configuration performance data.
According to the embodiment of the invention, the acquisition of the electrical parameter detection data, the insulator data and the line environment data of each sub-circuit is specifically as follows:
acquiring detection data of electric parameters of each sub-circuit, wherein the detection data comprises input voltage data, output voltage data, loop current vector sum data;
acquiring insulator data of each sub-circuit, wherein the insulator data comprises insulator breakage data, insulator corona discharge data and insulator thermal effect data;
and acquiring line environment data of each sub-circuit, wherein the line environment data comprises geographic environment data and meteorological environment data.
After the power transmission circuit is divided into sub-circuits, voltage and current conditions, circuit insulation performance and surrounding environments of the circuit are detected, so that the leakage condition of the circuit can be accurately judged, electric parameter detection data of the sub-circuits are firstly obtained, the electric parameter detection data comprise input voltage data, output voltage data and loop current vector and data, the loop current vector and data are used for judging whether current inflow and outflow of each node are consistent or not, further the leakage condition of the loop is judged, insulator data of the sub-circuits are obtained and obtained, the insulator data comprise insulator breakage data, insulator corona discharge data and insulator heat effect data, the insulator corona discharge data and the insulator heat effect data are indexes for reflecting the degradation degree of the insulator, and then the line environment data of the sub-circuits are obtained, wherein the line environment data comprise geographic environment data and weather environment data.
According to the embodiment of the invention, the circuit characteristic parameter is obtained by processing the electrical parameter detection data, and the circuit insulation performance parameter is obtained by processing the insulator data, specifically:
inputting the input voltage data, the output voltage data, the loop current vector and the loop current vector into a preset electric loop characteristic detection model for processing to obtain electric loop characteristic data;
The insulator damage data, the insulator corona discharge data and the insulator thermal effect data are respectively processed to obtain corresponding insulation characteristic factors;
calculating and obtaining circuit insulation performance parameters according to the insulation characteristic factors and the insulator data;
the calculation formula of the circuit insulation performance parameter is as follows:
wherein k=3, t y Is the insulating performance parameter of the circuit, w i Is the absolute corresponding to the ith data in the insulator breakage data, the insulator corona discharge data and the insulator thermal effect dataThe edge characteristic factor, P (i), is the ith data, delta, in the insulator breakage data, insulator corona discharge data and insulator thermal effect data i Is a preset characteristic coefficient.
In order to better reflect the electric loop characteristics of the circuit and the insulation performance of the circuit, input voltage data, output voltage data, loop current vector and data are input into a preset electric loop characteristic detection model for processing to obtain the electric loop characteristics, the electric loop characteristic detection model is a model obtained by training a large number of historical samples of input voltage data, output voltage data, loop current vector and data and the electric loop characteristics, the corresponding output electric loop characteristics can be obtained by inputting relevant information for processing, the insulator breakage data, insulator corona discharge data and insulator thermal effect data are respectively processed to obtain corresponding insulation characteristic factors, finally, the circuit insulation performance parameters are obtained by combining the insulation characteristic factors with the insulator data, and the program formula of the insulation characteristic factors is as follows:
Wherein k= 3,w i The insulation characteristic factors corresponding to the ith data in the insulator breakage data, the insulator corona discharge data and the insulator thermal effect data are adopted, and the P (i) is the ith data in the insulator breakage data, the insulator corona discharge data and the insulator thermal effect data.
According to the embodiment of the invention, the circuit environment influence factors corresponding to each sub-circuit are obtained by analyzing and calculating the circuit layout data and the circuit connection data corresponding to each sub-circuit in combination with the circuit environment data, specifically:
calculating and obtaining a circuit environment influence factor according to the line wiring position data and the line crossing data by combining the geographic environment data and the meteorological environment data;
the calculation formula of the circuit environment influence factor is as follows:
wherein lambda is k C is a circuit environmental impact factor t Routing position data for the line F d For line crossing data, Q s K is geographical environment data c Is weather environment data, sigma,μ、ε、/>Is a preset characteristic coefficient (which can be obtained through inquiring a circuit structure performance database).
It should be noted that, in order to better measure the geographical environment and weather environment of the area where the line is located and possible leakage influence of multiple line cross-connection wires on the power transmission circuit, the circuit environment influence factor is obtained by combining the geographical environment data and the weather environment data according to the line wiring position data and the line cross-over data.
According to an embodiment of the present invention, the analyzing and processing are performed according to the electrical loop characteristic parameter in combination with the circuit insulation performance parameter and the circuit environmental impact factor to obtain a leakage current detection parameter, which specifically includes:
inputting the characteristic parameters of the circuit, the insulating performance parameters of the circuit and the environmental impact factors of the circuit into a preset leakage current detection model for processing to obtain leakage current detection parameters;
the calculation formula of the leakage current detection parameter is as follows:
wherein I is R Lambda is the leakage current detection parameter k U is a circuit environment influence factor m For characteristic parameters of the electric circuit, T y Is the insulating performance parameter of the circuit, tau and omega are preset performance characteristic coefficients, delta n For presetting the leakage current detection coefficient, the characteristic coefficient and the leakage current detection coefficient are obtained through inquiring a circuit structure performance database.
In order to realize more accurate judgment of the current leakage condition, the characteristic parameters of the circuit, the insulating performance parameters of the circuit and the environmental influence factors of the circuit are input into a preset leakage current detection model to be processed, leakage current detection parameters are obtained, and the circuit leakage condition is judged according to the leakage current detection parameters.
According to the embodiment of the invention, the leakage current detection parameter is compared with a preset leakage current detection threshold value, and the leakage current condition of each sub-circuit is judged according to the threshold value comparison result, specifically:
Comparing the leakage current detection parameter with a preset leakage current detection threshold value;
if the leakage current detection parameter is smaller than the preset leakage current detection threshold value, judging that the sub-circuit does not leak electricity;
and if the leakage current detection parameter is larger than the preset leakage current detection threshold value, judging the leakage of the sub-circuit and marking.
It should be noted that, in order to evaluate the current leakage condition of each sub-circuit, the leakage current detection parameter is compared with a preset leakage current detection threshold value, if the leakage current detection parameter is smaller than the preset leakage current detection threshold value, the sub-circuit is determined not to leak, and if the leakage current detection parameter is larger than the preset leakage current detection threshold value, the sub-circuit is determined to leak and the sub-circuit is marked with leakage.
According to an embodiment of the present invention, further comprising:
comparing and analyzing the leakage current detection parameters of each sub-circuit to obtain contrast deviation values of each sub-circuit;
calculating the average value of the contrast deviation of all the sub-circuits according to the contrast deviation value of each sub-circuit;
and marking the corresponding sub-circuit with the contrast deviation value exceeding the contrast deviation average value as an abnormal sub-circuit, and prompting or early warning.
The comparison is performed according to the leakage detection result of each sub-circuit and the leakage detection result of other sub-circuits to obtain a corresponding comparison result, and if the contrast deviation of a certain sub-circuit obviously exceeds the contrast deviation of other sub-circuits, the leakage risk is indicated, and the leakage risk is required to be indicated.
A third aspect of the present application provides a readable storage medium having embodied therein a leakage current detection method program of a power transmission circuit, which when executed by a processor, implements the steps of the leakage current detection method of a power transmission circuit as described in any one of the above.
According to the leakage current detection method, system and medium of the power transmission circuit, circuit structure performance data are obtained through analyzing and processing circuit layout data and circuit connection data of the power transmission circuit, sub-circuit division is carried out on the power transmission circuit according to the circuit structure performance data, circuit loop characteristic parameters and circuit insulation performance parameters are obtained through processing according to electric parameter detection data and insulator data of each sub-circuit, circuit environment influence factors corresponding to each sub-circuit are obtained through processing according to circuit layout data and circuit connection data corresponding to each sub-circuit in combination with circuit environment data, leakage current detection parameters are obtained through analyzing and processing according to the circuit loop characteristic parameters in combination with the circuit insulation performance parameters and the circuit environment influence factors, and finally leakage current conditions of each sub-circuit are judged according to threshold comparison results of the leakage current detection parameters. The application can realize the purpose of quick and accurate positioning of the leakage circuit.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units; can be located in one place or distributed to a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, or the like, which can store program codes.
Alternatively, the above-described integrated units of the present invention may be stored in a readable storage medium if implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in essence or a part contributing to the prior art in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.

Claims (7)

1. The leakage current detection method of the power transmission circuit is characterized by comprising the following steps of:
obtaining line layout data and circuit connection data of a preset power transmission circuit comprises the following steps:
acquiring line layout data of a preset power transmission circuit, wherein the line layout data comprises line layout structure data, line function data and line layout position data;
acquiring circuit connection data of the power transmission circuit, wherein the circuit connection data comprise circuit connection contact data and line crossing data;
analyzing and processing according to the line layout data and the circuit connection data to obtain circuit structure performance data, and dividing the power transmission circuit into sub-circuits according to the circuit structure performance data;
acquiring electric parameter detection data, insulator data and line environment data of each sub-circuit;
obtaining a characteristic parameter of a circuit by processing the electrical parameter detection data, and obtaining a circuit insulation performance parameter by processing the insulator data;
analyzing and calculating according to the circuit layout data and the circuit connection data corresponding to each sub-circuit and combining the circuit environment data to obtain a circuit environment influence factor corresponding to each sub-circuit, wherein the circuit environment influence factor comprises:
calculating and obtaining a circuit environment influence factor according to the line wiring position data and the line crossing data and combining geographic environment data and meteorological environment data;
The calculation formula of the circuit environment influence factor is as follows:；
wherein,is a circuit environmental influence factor, +.>Routing position data for the line,/->For line crossing data, ++>For geographical environment data->Is weather environment data>、/>、/>、/>、/>Is a preset characteristic coefficient;
analyzing and processing according to the electrical loop characteristic parameter in combination with the circuit insulation performance parameter and the circuit environment influence factor to obtain a leakage current detection parameter, wherein the method comprises the following steps:
inputting the characteristic parameters of the circuit, the insulating performance parameters of the circuit and the environmental impact factors of the circuit into a preset leakage current detection model for processing to obtain leakage current detection parameters;
the calculation formula of the leakage current detection parameter is as follows:；
wherein,for the leakage current detection parameter, ">Is a circuit environmental influence factor, +.>For the characteristic parameters of the electrical circuit, < >>For the insulating performance parameter of the circuit->、/>For presetting the characteristic coefficient of performance, < >>The leakage current detection coefficient is preset;
and comparing the leakage current detection parameter with a preset leakage current detection threshold value, and judging the leakage current condition of each sub-circuit according to a threshold value comparison result.
2. The leakage current detection method of a power transmission circuit according to claim 1, wherein the analyzing processing according to the line layout data and the circuit connection data to obtain circuit structure performance data, and the sub-circuit division of the power transmission circuit according to the circuit structure performance data comprises:
Inputting the circuit arrangement structure data, the circuit function data and the circuit connection point data into a preset circuit structure performance database for analysis and identification to obtain circuit structure performance data;
and dividing the power transmission circuit into sub-circuits according to the circuit structure performance data.
3. The method for detecting leakage current of a power transmission circuit according to claim 2, wherein the acquiring the electrical parameter detection data, the insulator data, and the line environment data of each sub-circuit includes:
acquiring detection data of electric parameters of each sub-circuit, wherein the detection data comprises input voltage data, output voltage data, loop current vector sum data;
acquiring insulator data of each sub-circuit, wherein the insulator data comprises insulator breakage data, insulator corona discharge data and insulator thermal effect data;
and acquiring line environment data of each sub-circuit, wherein the line environment data comprises geographic environment data and meteorological environment data.
4. A leakage current detection method for a power transmission circuit according to claim 3, wherein said obtaining a circuit characteristic parameter from said electrical parameter detection data processing and obtaining a circuit insulation performance parameter from said insulator data processing comprises:
Inputting the input voltage data, the output voltage data, the loop current vector and the loop current vector into a preset electric loop characteristic detection model for processing to obtain electric loop characteristic data;
the insulator damage data, the insulator corona discharge data and the insulator thermal effect data are respectively processed to obtain corresponding insulation characteristic factors;
calculating and obtaining circuit insulation performance parameters according to the insulation characteristic factors and the insulator data;
the calculation formula of the circuit insulation performance parameter is as follows:；
wherein, k=3,for the insulating performance parameter of the circuit->Is insulator damage data, insulator corona discharge data and insulatorInsulation characteristic factor corresponding to the ith data in the sub-thermal effect data,/and the like>Is the ith data in the insulator breakage data, insulator corona discharge data and insulator thermal effect data,/and->Is a preset characteristic coefficient.
5. The method for detecting leakage current of power transmission circuit according to claim 4, wherein comparing the leakage current detection parameter with a preset leakage current detection threshold, and determining the leakage current condition of each sub-circuit according to the threshold comparison result, comprises:
Comparing the leakage current detection parameter with a preset leakage current detection threshold value;
if the leakage current detection parameter is smaller than the preset leakage current detection threshold value, judging that the sub-circuit does not leak electricity;
and if the leakage current detection parameter is larger than the preset leakage current detection threshold value, judging the leakage of the sub-circuit and marking.
6. A leakage current detection system for a power transmission circuit, the system comprising: the power transmission circuit leakage current detection method comprises a memory and a processor, wherein the memory comprises a program of the power transmission circuit leakage current detection method, and the program of the power transmission circuit leakage current detection method realizes the following steps when being executed by the processor:
obtaining line layout data and circuit connection data of a preset power transmission circuit comprises the following steps:
acquiring line layout data of a preset power transmission circuit, wherein the line layout data comprises line layout structure data, line function data and line layout position data;
acquiring circuit connection data of the power transmission circuit, wherein the circuit connection data comprise circuit connection contact data and line crossing data;
analyzing and processing according to the line layout data and the circuit connection data to obtain circuit structure performance data, and dividing the power transmission circuit into sub-circuits according to the circuit structure performance data;
Acquiring electric parameter detection data, insulator data and line environment data of each sub-circuit;
obtaining a characteristic parameter of a circuit by processing the electrical parameter detection data, and obtaining a circuit insulation performance parameter by processing the insulator data;
analyzing and calculating according to the circuit layout data and the circuit connection data corresponding to each sub-circuit and combining the circuit environment data to obtain a circuit environment influence factor corresponding to each sub-circuit, wherein the circuit environment influence factor comprises:
calculating and obtaining a circuit environment influence factor according to the line wiring position data and the line crossing data and combining geographic environment data and meteorological environment data;
the calculation formula of the circuit environment influence factor is as follows:；
wherein,is a circuit environmental influence factor, +.>Routing position data for the line,/->For line crossing data, ++>For geographical environment data->Is weather environment data>、/>、/>、/>、/>Is a preset characteristic coefficient;
analyzing and processing according to the electrical loop characteristic parameter in combination with the circuit insulation performance parameter and the circuit environment influence factor to obtain a leakage current detection parameter, wherein the method comprises the following steps:
inputting the characteristic parameters of the circuit, the insulating performance parameters of the circuit and the environmental impact factors of the circuit into a preset leakage current detection model for processing to obtain leakage current detection parameters;
The calculation formula of the leakage current detection parameter is as follows:；
wherein,for the leakage current detection parameter, ">Is a circuit environmental influence factor, +.>For the characteristic parameters of the electrical circuit, < >>For the insulating performance parameter of the circuit->、/>For presetting the characteristic coefficient of performance, < >>The leakage current detection coefficient is preset;
and comparing the leakage current detection parameter with a preset leakage current detection threshold value, and judging the leakage current condition of each sub-circuit according to a threshold value comparison result.
7. A computer-readable storage medium, characterized in that a leakage current detection method program of a power transmission circuit is included in the computer-readable storage medium, which, when executed by a processor, implements the steps of the leakage current detection method of a power transmission circuit according to any one of claims 1 to 5.
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Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001231119A (en) * 2000-02-18 2001-08-24 Tohoku Electric Power Co Inc Insulator contamination detector and insulator contamination detecting system
KR20080093169A (en) * 2007-04-16 2008-10-21 김형열 Method of leakage current break and measurement leakage current use phase calculation
CN103499774A (en) * 2013-07-09 2014-01-08 贺贵明 Electricity transmission insulator arc-over on-line monitoring and safety early-warning device
CN104422480A (en) * 2013-08-28 2015-03-18 国家电网公司 Power transmission line online monitoring circuit and intelligent insulator suspension ring
CN105510525A (en) * 2015-07-23 2016-04-20 深圳供电局有限公司 Electric-transmission-line dirt monitoring apparatus and method
CN206497167U (en) * 2017-01-22 2017-09-15 国网甘肃省电力公司电力科学研究院 A kind of electric transmission line isolator leakage current monitoring system based on big-dipper satellite
CN110210606A (en) * 2019-06-04 2019-09-06 国网江苏省电力有限公司电力科学研究院 A kind of transmission line of electricity leakage current prediction technique, system and storage medium based on BP neural network
WO2019237704A1 (en) * 2018-06-13 2019-12-19 中车株洲电力机车有限公司 Method and system for detecting leakage abnormality of capacitor, and computer device
CN110703136A (en) * 2019-10-21 2020-01-17 重庆理工大学 Live detection device and method for leakage current of insulator of power transmission line
CN111123157A (en) * 2020-01-23 2020-05-08 国网江苏省电力有限公司无锡供电分公司 Device and method for detecting leakage current of power transmission line
CN113219365A (en) * 2021-03-20 2021-08-06 国网黑龙江省电力有限公司大庆供电公司 Multifunctional on-line monitoring system and monitoring method for operating state of power transmission line
CN113340353A (en) * 2021-06-15 2021-09-03 山东国瑞新能源有限公司 Monitoring method, equipment and medium for power transmission line
CN214669520U (en) * 2021-02-10 2021-11-09 国网福建省电力有限公司电力科学研究院 Transmission line insulator leakage current monitoring devices
CN114966467A (en) * 2022-05-17 2022-08-30 国网安徽省电力有限公司电力科学研究院 Power transmission line state evaluation method based on digital twinning
CN115113093A (en) * 2022-06-08 2022-09-27 山东信通电子股份有限公司 Visual insulator leakage current inspection method and equipment
CN115754639A (en) * 2022-11-30 2023-03-07 中国电力科学研究院有限公司 Insulator leakage current structure and monitoring devices that converge
CN115902700A (en) * 2023-02-07 2023-04-04 广东电网有限责任公司 Pollution flashover early warning method, device, equipment and medium for insulator of power transmission line
CN115980621A (en) * 2022-11-30 2023-04-18 国网冀北电力有限公司智能配电网中心 Direct current electric wire netting electric leakage monitored control system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5401333B2 (en) * 2010-01-06 2014-01-29 アズビル株式会社 Circuit abnormality detection apparatus and method

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001231119A (en) * 2000-02-18 2001-08-24 Tohoku Electric Power Co Inc Insulator contamination detector and insulator contamination detecting system
KR20080093169A (en) * 2007-04-16 2008-10-21 김형열 Method of leakage current break and measurement leakage current use phase calculation
CN103499774A (en) * 2013-07-09 2014-01-08 贺贵明 Electricity transmission insulator arc-over on-line monitoring and safety early-warning device
CN104422480A (en) * 2013-08-28 2015-03-18 国家电网公司 Power transmission line online monitoring circuit and intelligent insulator suspension ring
CN105510525A (en) * 2015-07-23 2016-04-20 深圳供电局有限公司 Electric-transmission-line dirt monitoring apparatus and method
CN206497167U (en) * 2017-01-22 2017-09-15 国网甘肃省电力公司电力科学研究院 A kind of electric transmission line isolator leakage current monitoring system based on big-dipper satellite
WO2019237704A1 (en) * 2018-06-13 2019-12-19 中车株洲电力机车有限公司 Method and system for detecting leakage abnormality of capacitor, and computer device
CN110210606A (en) * 2019-06-04 2019-09-06 国网江苏省电力有限公司电力科学研究院 A kind of transmission line of electricity leakage current prediction technique, system and storage medium based on BP neural network
CN110703136A (en) * 2019-10-21 2020-01-17 重庆理工大学 Live detection device and method for leakage current of insulator of power transmission line
CN111123157A (en) * 2020-01-23 2020-05-08 国网江苏省电力有限公司无锡供电分公司 Device and method for detecting leakage current of power transmission line
CN214669520U (en) * 2021-02-10 2021-11-09 国网福建省电力有限公司电力科学研究院 Transmission line insulator leakage current monitoring devices
CN113219365A (en) * 2021-03-20 2021-08-06 国网黑龙江省电力有限公司大庆供电公司 Multifunctional on-line monitoring system and monitoring method for operating state of power transmission line
CN113340353A (en) * 2021-06-15 2021-09-03 山东国瑞新能源有限公司 Monitoring method, equipment and medium for power transmission line
CN114966467A (en) * 2022-05-17 2022-08-30 国网安徽省电力有限公司电力科学研究院 Power transmission line state evaluation method based on digital twinning
CN115113093A (en) * 2022-06-08 2022-09-27 山东信通电子股份有限公司 Visual insulator leakage current inspection method and equipment
CN115754639A (en) * 2022-11-30 2023-03-07 中国电力科学研究院有限公司 Insulator leakage current structure and monitoring devices that converge
CN115980621A (en) * 2022-11-30 2023-04-18 国网冀北电力有限公司智能配电网中心 Direct current electric wire netting electric leakage monitored control system
CN115902700A (en) * 2023-02-07 2023-04-04 广东电网有限责任公司 Pollution flashover early warning method, device, equipment and medium for insulator of power transmission line

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
绝缘子泄漏电流和PM2.5同步监测系统设计;贾伯岩;孙翠英;方春华;周毅;;电气应用(第13期);全文 *
输电线路绝缘子综合在线监测系统;袁力翔;盛戈;曾奕;江秀臣;张成;;电工技术(第02期);全文 *
输电绝缘子安全监测与预警研究;任文斌;;中国农村水利水电(第12期);全文 *

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