Ice coverage detection method and device for electric transmission circuit

Abstract

The invention provides an ice coverage detection method and device for an electric transmission circuit. The method comprises the following steps that: collecting the image of an electric transmissioncircuit to be detected; according to the image of the electric transmission circuit to be detected, determining a three-dimensional model of the electric transmission circuit to be detected; according to the three-dimensional model of the electric transmission circuit to be detected, determining the cross section information of the electric transmission circuit to be detected; and according to the cross section information of the electric transmission circuit to be detected and a pre-established ice coverage three-dimensional model of the electric transmission circuit, determining the ice coverage situation and the equivalence ice coverage thickness of the electric transmission circuit to be detected. By use of the above technical scheme, the efficiency and the accuracy of the ice coverage detection of the electric transmission circuit are improved so as to improve the safety of an electrical power system, and the above technical scheme can be widely applied to the electrical power system.

Description

technical field [0001] The invention relates to the technical field of fault detection, in particular to a method and device for detecting icing on transmission lines. Background technique [0002] At the beginning of 2008, many provinces and cities in my country suffered from severe freezing rain and snow disasters. Accidents such as line tripping, line disconnection and tower collapse commonly occurred, which brought great influence and threat to the safe and stable operation of the power system and power supply in these areas. . The phenomenon of icing on transmission lines is very common in power transmission and transformation systems. Icing will cause problems such as wire galloping, tower tilting and collapse, disconnection and insulator flashover, which will bring great inconvenience to production and life, and also cause huge economic loss. my country has a vast territory and complex terrain, and is one of the countries most severely affected by ice-covered disaste...

AI Technical Summary

Problems solved by technology

Limitations: Irregular ice surface and ice cross-sections at different points on the wire, usually the characteristic size is measured at a certain part of the wire (such as the middle), it is difficult to correctly reflect the actual ice thickness of the wire

When the laser sensor measures the thickness of the ice, the surface laser may penetrate the ice, and the accurate value may be measured when the ice is thick, but the measured value may be inaccurate when the ice is thin, and actual verification is still needed

[0023] For the above problems, no effective solutions have been proposed so far

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