Power transmission line insulator string windage yaw motion attitude measurement device and measurement method

Abstract

The invention relates to a power transmission line insulator string windage yaw motion attitude measurement device and measurement method. The measurement device comprises a video online monitoring device and an image processing and identification unit. The video on-line monitoring device is arranged at the bottom of the tower, the direction of a camera of the video on-line monitoring device is anobliquely upward direction, and video images of the insulator string during on-line operation are acquired and sent to the image processing and identification unit; the image processing and identification unit calculates the displacement of the insulator string in space and corresponding time information based on high-speed visual dynamic measurement. Video images of an insulator string during online operation are collected through a visible light camera; a non-contact visible light image processing technology is adopted to automatically monitor insulator string swing, the swing frequency, direction and amplitude of the insulator string and the stress condition are analyzed, processed, calculated and judged through an image processing algorithm, hidden dangers are warned in advance, the online monitoring level of a line is improved, and safe and stable operation of a power grid is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of power transmission line safety, and in particular to a device and method for measuring the wind yaw movement attitude of a power transmission line insulator string. Background technique [0002] The wind deviation and vibration caused by high wind on the insulator string, especially the large tonnage insulator string, will produce strong stress changes on the tower itself. Insulator string is an important component of line transmission equipment, which plays the role of suspension, support for wires and insulation. There are big differences in structure, manufacturing level, operating conditions, and number of insulator strings for transmission lines with different voltage levels in China from 10 to 750kV. In recent years, the occurrence of flashover and damage accidents on insulator strings has also increased. These accidents are mainly manifested in flashover, mechanical strength drop, string drop, breakdown...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides a transmission line insulator string wind deflection motion posture measurement device and measurement method, which solves the problem that the swing amplitude and frequency of the insulator string cannot be identified in real time in the prior art

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