Method for judging lightning stroke fault point of tripped transmission line

Abstract

The invention discloses a method for judging a lightning stroke fault point of a tripped transmission line, relates to a fault point judging method, and aims to solve the problems of inaccurate query result, non-timeliness and long judgment consumed time in the conventional lightning stroke query and judge work for the tripped line. The method for judging the lightning stroke fault point of the tripped transmission line is characterized by comprising the following steps: line information and trip time information of a tripped transmission line are extracted from a power grid dispatching system; the lightning stroke condition of the tripped line is inquired in a trip time range, and information of a tower near a possible lightning stroke trip point is acquired; a lightning stroke fault of the transmission line is positioned in real time by operating a spatial analysis model according to real-time observation data, a lightning risk model, distribution network SCADA (supervisory control and data acquisition) data, geographic information data and radar echo data; positioning information of the lightning stroke fault is released and sent to a responsible worker in a short message manner. With adoption of the technical scheme, the lightning stroke fault position can be found out rapidly, and loss caused by line maintenance delay is reduced.

Description

technical field [0001] The invention relates to a method for discriminating a fault point, in particular to a method for discriminating a fault point of a power transmission line tripped by lightning. Background technique [0002] In recent years, with the accumulation of ground lightning detection data, foreign countries have carried out a series of studies on lightning disaster risk based on ground lightning density, lightning current amplitude, external natural environment, and internal environment of equipment. It has carried out fruitful work on the mine disaster risk based on the statistical method of basic parameters and the law of ground lightning activities in some provinces and cities. However, it is basically blank in the aspect of merging multiple data to determine the lightning strike point. [0003] In China, there are some research topics on "Climatic Characteristics of Thunderstorm Activities", "Research on Lightning Distribution Characteristics and Lightnin...

AI Technical Summary

Problems solved by technology

But at present, there are still several problems in the query and identification of line trip lightning strikes: (1) The trip time of the dispatch notification is wrong, which makes the query results inaccurate; (2) The query conditions are unreasonable, resulting in inaccurate queries; (3) ) After the lightning strike, the staff need to inquire on the computer on the intranet, and then notify the line patrol personnel of the result, which often has a large time difference

(4) The determination of the actual lightning strike point and the discrimination of the nature of the lightning strike often require querying the parameters of the actual tower of the line as a reference, and the staff need to spend a lot of time

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