Real-time monitoring method of ice coated on overhead transmission line conductor and system

Abstract

The invention relates to the field of the monitoring of a transmission line conductor, in particular to a real-time monitoring method of ice coated on an overhead transmission line conductor and a system thereof. The method comprises the following steps of: firstly, arranging tilt-temperature monitoring devices on each line conductor so as to monitor the suspension point tilt and the conductor temperature of line conductors in real time; secondly, arranging deviation angle-wind deflection angle monitoring devices on each suspended insulator string so as to monitor the deviation angles of the suspended insulator strings along the conductor direction and the wind deflection angles vertical to the conductor direction in real time; and calculating the ice coating comprehensive load and the ice coating thickness of each line conductor in real time through monitoring the suspension point tilt and the conductor temperature of the line conductors and the deviation angles of the suspended insulator strings in real time. The method has the beneficial effects that not only the ice coating thickness of the conductor can be measured, but also the comprehensive load of the ice-coated conductor can be measured, furthermore, the measure is reasonable and correct, the algorithm is simple, and the result is accurate, and the method can be applied to the comprehensive load calculation of the strain section of the lines, on which ice is evenly coated or unevenly coated.

Description

technical field [0001] The invention relates to the monitoring field of transmission line conductors, in particular to a method and system for real-time monitoring of icing on overhead transmission line conductors, and is particularly suitable for the field of early warning, monitoring and prevention of icing on transmission lines. Background technique [0002] my country has a vast territory and a changeable meteorological environment. It is one of the countries in the world with more icing on transmission lines. The two major ice and snow disasters in 2005 and early 2008 caused serious icing, tripping, disconnection, tower collapse, etc. Accidents have brought great losses to the national economy, industry and agriculture, and people's daily electricity consumption. The main reason for these two ice and snow disasters is the large-scale, long-term low-temperature rain and snow freezing climate that occurs once in many years, but it also reflects that my country's power grid...

AI Technical Summary

Problems solved by technology

[0004] In the past, the monitoring of icing on transmission lines was mainly realized by on-site observation and measurement by line operators. However, the method of manual on-site observation and measurement has the following disadvantages: 1. The labor cost is huge and the labor efficiency is low; 2. The naked eye can only observe The surface conditions of the ice-covered transmission lines can only be visually inspected, and accurate and scientific data cannot be provided, nor can the comprehensive load of the ice-coated conductors of overhead transmission lines be calculated.

[0005] Someone once thought of using video equipment for monitoring, but often the place where the power transmission line is covered with ice has low temperature and high humidity, and the camera generally cannot work normally in such an environment, and the transmitted image is very blurred. If you use a high-cost military infrared camera, It can transmit clear images, but this can only overcome the shortcomings of huge labor costs and low labor efficiency in manual on-site observation and measurement. No matter how clear the image is, it cannot provide accurate and scientific comprehensive load data of ice-coated wires.

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