Cloud early warning system and method of wires under extreme meteorological conditions

Abstract

The invention discloses a cloud early warning system and a method of wires under extreme meteorological conditions. The method includes setting front-end systems on each pylon, setting a vibrating sensor and a meteorological sensor in each front-end system, obtaining vibrating parameters and micro meteorological data around the wires, and transmitting test data of the front-end systems to a remote monitoring system through a communication system; performing grid division on a wire corridor by using the terrain where the wire is located, and obtaining the wind speed distribution of the wire corridor at the forecast moment through combining obtained micro meteorological data with macro weather forecast and calculating a computational fluid dynamics (CFD) model; and obtaining static and dynamic response and ice and snow accumulation conditions of the wires at the forecast moment through a finite element model database of the wire system and combining the obtained wind speed distribution of the wire corridor at the forecast moment. By means of the cloud early warning system and the method, meteorological data of positions where wire system corridors are located in the future can be forecasted accurately, wind, ice and snow resistant capacities of the wire system under meteorological conditions can be simulated, and therefore the early warning effect is achieved.

Description

technical field [0001] The invention relates to a wire monitoring system, in particular to a system capable of early warning of the status of wires such as transmission tower wires in view of extreme weather conditions. Background technique [0002] In recent years, due to the frequent occurrence of extreme weather conditions, there have been many lodging accidents in the transmission tower line system. For example, in May 2005, a storm in Qinghai Province caused a 330 kV power transmission tower to collapse; in June 2009, a thunderstorm in Jiangsu caused a 500 kV power transmission In the event of a severe snowstorm, many transmission towers in the power grid fell down. These accidents have caused great losses to the national economy and people's lives. In addition to the transmission tower line system, other overhead wiring systems such as communication cables, overhead ground wires, tension lines and other systems with supporting structures also have similar problems. ...

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Problems solved by technology

[0004] However, the existing on-line observation system of this type of transmission tower line can only report the existing working status of the transmission tower in real time, and cannot achieve the effect of early warning; at the same time, due to the lack of weather forecast for the location of the transmission tower line, it is impossible to accurately predict the future. Meteorological data such as wind speed and temperature, so it is impossible to predict the disaster resistance ability of the transmission tower line

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