A method for evaluating the monitoring results of a transmission line galloping 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 wire galloping monitoring of transmission lines, in particular to a method for evaluating the monitoring results of a power 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 or more) vibration phenomenon of the transmission line under the action of external unbalanced stress. When the conductors of overhead transmission lines vibrate under external action, it may cause damage to the fittings on the transmission line towers, flashover between transmission lines, and even large accidents such as the collapse of the transmission line towers. Therefore, monitoring the galloping state of the transmission line conductor and setting the galloping warning range has important practical and economic value. [0003] At this stage, there are three commonly used transmission line galloping mo...

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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