Method for evaluating monitoring result of electric transmission line waving monitoring device

Abstract

The invention discloses a method for evaluating a monitoring result of an electric transmission line waving monitoring device. The method comprises the steps of 1, conducting line waving monitoring by means of an electric transmission line wire waving monitoring standard system and a system under test; 2, intercepting the tested line waving test tracks of the standard system and the system under test, intercepting line waving track data within k periods, and conducting time domain discretion on the data; 3, processing the intercepted single-point waving tracks of the standard system and the system under test to obtain polar coordinate track curves of the standard system and the system under test; 4, calculating the error of the line waving single-point track of the system under test relative to the line waving single-point track of the standard system. According to the method, the X-Y track diagrams of the standard system and the system under test are directly analyzed, errors in X-t and Y-t track diagrams caused by different time scales of different systems are avoided, and the evaluation result is more reasonable and accurate.

Description

technical field [0001] The invention relates to the field of galloping monitoring of transmission line conductors, in particular to an evaluation method for monitoring results of a transmission line galloping monitoring device. Background technique [0002] The galloping of transmission line conductors refers to the low-frequency (0.1Hz-1Hz) and large-amplitude (up to 10m) vibration phenomenon of transmission lines under the action of external unbalanced stress. When the wires of the overhead transmission line vibrate under external influences, it may cause damage to the fittings on the transmission line tower, flashover between phases of the transmission line, and even cause large-scale accidents such as the collapse of the transmission line tower. Therefore, it has important practical value and economic value to monitor the galloping state of transmission line conductors and set galloping warning range. [0003] There are three commonly used monitoring methods for gallopi...

AI Technical Summary

Problems solved by technology

[0004] The above three monitoring methods can all complete the conventional transmission line conductor galloping monitoring, but due to different working mechanisms and monitoring methods, different transmission line conductor galloping monitoring equipment may produce different results when monitoring the galloping status of the same transmission line

At the same time, due to the lack of corresponding national standards or industry standards in relevant aspects, the manufacturers of transmission line galloping monitoring equipment lack the same standard that can be followed. Therefore, the output results of monitoring equipment from different manufacturers have different formats and meanings, and cannot be simply based Dancing results to judge which type or which monitoring equipment monitoring results are more accurate

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