EHV Transmission Line System Of Anti-ice Monitoring And Management System Design And Implementation

In recent years, China’s electricity network by the severe impact of the terrain,weather conditions, ice damage cause power outages often occur. Icing momentarilyincrease the weight of the transmission lines of the Dutch the Tower, wire, fittingsconnected line facilities will produce different mechanics, will bring a different degreeof mechanical damage, serious will lead to pull off the Tower pulled down, resulting ina large area of the blackout and causing huge economic losses and social impacts. Ofcomplex terrain, transmission lines erected line long transmission lines in China hasbeen more accidents than any other country in early2009, according to statistics ofmore than more than100billion yuan in direct economic losses due to the snow disaster.So for the transmission line icing in-depth study of high economic value and socialsignificance.Of the ice cover on the transmission lines lost in the middle of the last century havehad documented some provinces in southern China, such as Guangdong, Guangxi,Yunnan, Sichuan and other places, these places are mostly mountainous terrain and theclimate is more humid air is relativelycold when prone transmission Line accident. Inthese years, the national power grid in order to address the harm Transmission Line, theElectric Power Research units have invested a considerable amount of human andmaterial related research; some domestic colleges and universities are also involved inthe study, from a theoretical point of view to analyze and go with the computersimulation, has made a great deal of research in these two areas of transmission Lineaccident and prevention, and provide a strong scientific basis for transmission LineIcing accident prevention.Transmission Line Icing phenomenon detection method in our country is stillrelatively backward, mainly by manual inspections and watch the ice station traditionalmethods, these methods there are significant problems, such as poor accuracy, laborintensity, high economic costs, safety factors and so on. Build transmission linesiced-line monitoring technology can be an effective solution to the current line Icing isnot easy to detect the status quo, the swing angle of the field of transmission lines state data (the iced load, temperature, humidity, wind speed, wind direction, insulator stringinsulator strings pan angle tower tilt angle) weather, real-time monitoring systemthrough the installation of monitoring equipment on the tower, throughGSM/GPRS/3G/OPGW and other means of communication of the data transfer thesubsequent station monitoring center to control the monitoring circuit monitoring can beanywhere. Icing conditions, according to these data, combined with the mathematicalmodel of the ice cover, fuzzy logic diagnosis can be with or without ice coverqualitative analysis, quantitative calculation of the approximate ice thickness andforecast trends Icing, and to achieve a pre-alarm, analysis and evaluation functions, soas to achieve the purpose of reducing the grid Icing accident losses, transmission lines,ice covering the online monitoring system to improve the operation of the gridreliability is of great significance.