Icing high precision monitoring method for electric power system power transmission line

Abstract

The invention discloses an icing high precision monitoring method for an electric power system power transmission line. The method comprises using a stay wire displacement sensor, a temperature sensor, a brightness sensor, and a wind speed sensor to measure the degree of deformation between a transmission line and a pole tower, the ambient temperature, the icing transparency and the wind speed; utilizing a processor to comprehensively analyze the data measured by each sensor so as to determine whether icing is formed and determine the formation degree of icing; when the icing degree exceeds a preset threshold, triggering an alarm system; and transmitting an alarm signal to a control center through a ZigBee wireless communication network. Compared with a traditional measuring method, the icing high precision monitoring method for an electric power system power transmission line is more accurate and reliable, and can quickly and conveniently monitor the transmission line with no demand for changing the original connection between the transmission line and the tower pole.

Description

technical field [0001] The invention relates to the technical field of power system transmission line monitoring, in particular to a high-precision monitoring method for icing of power system transmission lines. Background technique [0002] Harsh meteorological conditions often lead to icing on power transmission lines, and the formation of icing is mainly determined by meteorological factors such as temperature, humidity, cold and warm air convection, circulation, and wind. Freezing occurs when water in the air collides with the surface of power lines at temperatures of 4 degrees Celsius or lower, and as the freezing builds and intensifies, icing occurs. When the icing intensifies, a large amount of icing on the transmission line will cause additional load weight on the tower, thereby destroying the structure of the tower. In severe cases, it may even crush the tower, causing large-scale power outages and other electrical accidents, resulting in huge economic losses. In m...

AI Technical Summary

Problems solved by technology

This type of detection method mainly has the following disadvantages: 1) Destruction of the original connection between the tower and the transmission line: the connection between the tower and the transmission line is guaranteed by a strictly verified engineering design, but cutting open the connection between the tower and the transmission line 2) Only relying on the quality detection of icing causes alarm delay: the formation of mixed rime icing is very fast, but when the tension displacement sensor senses the power transmission When the line quality changes, the icing has already begun to accumulate, and the weight of the icing in a very short period of time is enough to damage the structure of the tower; 3) Complex maintenance: long-term large-mass transmission lines will continue to cause wear and tear on the tension displacement sensor, so The tension displacement sensor is easily damaged during long-term use

If the guyed sensor is damaged, its maintenance process is extremely complicated, and the power line needs to be stripped from the tower again and the guyed sensor needs to be replaced

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