南方电网技术2016，Vol.10Issue(9)：17-23,7.DOI:10.13648/j.cnki.issn1674-0629.2016.09.003
基于统计法的变电站雷击故障率计算方法
Calculation Method of Lightning Failure Rate of Substation Based on Statistical Method
王彤 1曾彦臖 1李怡 1盛华夏 1葛梦昕1
作者信息
摘要
Abstract
Lightning failure rate is an important indicator for substation construction. Current calculation methods of insulation failure rate depend on the operation data of the substation and computer simulation,and are complex and have big errors. Thus,the rationality of substation design and the reliability of lightning protection could not be predicted. Based on the statistical method,a new method is proposed. By using the parameters of the transmission lines and towers,the lightning frequency of tower is calculated,then the light-ning failure rate of substation is calculated by using the probability of the amplitude of lightning current. Taking a 500 kV HGIS substa-tion in Guangdong Province as the research object,a simulation model is established based on EMTP-ATP,and the process of light-ning striking the top of the tower and invading the substation along transmission line is simulated to determine the critical lightning cur-rent amplitude. According to the historical data of the area,the probability of the amplitude of the lightning current is obtained by fit-ting the measured values,then the lightning failure rate of the substation is calculated.关键词
雷击故障率/变电站设计/统计法/防雷布置/HGIS/EMTP-ATPKey words
lightning failure rate/substation design/statistical method/lightning protection/HGIS/EMTP-ATP分类
信息技术与安全科学引用本文复制引用
王彤,曾彦臖,李怡,盛华夏,葛梦昕..基于统计法的变电站雷击故障率计算方法[J].南方电网技术,2016,10(9):17-23,7.
