Overhead power transmission line vibration monitoring system and method

Abstract

The invention discloses an overhead power transmission line vibration monitoring system and an overhead power transmission line vibration monitoring method. The monitoring system comprises a laser vibration-measuring device, an iron tower controller and a remote monitoring terminal, wherein the laser vibration-measuring device is connected with the iron tower controller through a lead; the iron tower controller is connected with the remote monitoring terminal through an optical fiber composite overhead ground wire; the iron tower controller comprises a case; a power supply module, a communication module, an alarming module and a control module are arranged in the case; the control module is respectively connected with the power supply module, the communication module and the alarming module; the communication module is connected with the remote monitoring terminal through the optical fiber composite overhead ground wire. Due to the fact that the vibration condition of a power transmission line is monitored in real time by a laser vibration-measuring method, the accuracy of monitoring result is improved; due to the fact that the movement track of the lead in a vibration process is measured and recorded in a non-contact way, the overhead power transmission line vibration monitoring system is not required to be mounted on the power transmission line, the mounting difficulty is reduced, and the mounting cost is reduced.

Description

technical field [0001] The invention relates to the technical field of high-voltage transmission line monitoring, in particular to a transmission line monitoring and monitoring method based on laser vibration measurement. Background technique [0002] The failure of overhead transmission lines will affect the safe operation of the power system, and in severe cases, it will lead to the paralysis of power supply in large areas and cause great losses to the national economy. The vibration of overhead transmission lines is the main cause of accidents such as conductor fatigue and strand breakage, hardware wear and tear failure, and even line breakage; while the vibration of overhead transmission lines is mainly affected by climate factors around the line, and the wind has the most significant impact on it. Wind-induced vibration of overhead transmission lines is a high-frequency, small-amplitude conductor movement. Due to the complexity of its formation mechanism, people still c...

AI Technical Summary

Problems solved by technology

The measurement equipment used in traditional monitoring methods must be installed on the transmission line, and can be fixed with the help of clamps on the transmission line, which greatly affects its measurement range and accuracy

[0004] After explaining the traditional monitoring method, it can be concluded that this method has the following disadvantages: 1) The transmission line is made of various materials, and the surface of the line is not smooth, so it will affect the traditional contact measurement method the accuracy of

2) The equipment required by the traditional measurement method must be installed on the transmission line, and factors such as the weight of the equipment itself will affect the accuracy of the measurement

3) The existence of strong magnetic field around the transmission line will affect the normal operation of the measuring equipment

4) The traditional measurement method is difficult to install and the installation cost is high

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