输电线路多因素防雷风险评估模型研究  

Research on Risk Evaluation Model of Lightning Protection of Transmission Line Based on Multi-Factor

作　　者：刘锐[1] 杨恒[1] 虢韬[1] 许晓路[2] 吴念[2] 郭江[3] 

机构地区：[1]贵州电网公司输电运行检修分公司,贵阳550002 [2]国网电力科学研究院武汉南瑞有限责任公司,武汉430074 [3]武汉大学动力与机械学院,武汉430072

出　　处：《电瓷避雷器》2015年第4期100-104,共5页Insulators and Surge Arresters

基　　金：南网贵州电网公司科技项目(编号:K-GZ2013-021)

摘　　要：架空输电线路的安全稳定运行直接影响电网稳定性和供电可靠性,雷害是输电线路防灾、减灾领域的重大课题,雷击跳闸占到总跳闸次数一半以上,居各类灾害首位。结合贵州220 k V及以上输电线路雷击故障高发的实际情况,对雷害机理进行分析,构建了基于多源致灾因子的差异化防雷风险评估模型,对雷击关键因子进行相对重要性评分,并进行了实际工程应用验证。The safe and stable operation of overhead transmission line directly attects the stalaihty ot the grid and the reliability of power supply, lightning is a major research topic in the field of transmission line＇s disaster prevention and mitigation, lightning trip-out accounted for more than half to the total number of trip, which is the first place in all kinds of disasters. Combined with the actual demand of lightning fault in Guizhou of 220 kV and above transmission lines, the mechanism of lightning is analyzed, evaluation model of difference lightning risk based on multi-factor is established, relative importance of the key factors for lightning strikes are graded. Finally, it is verified in practical engineering applications.

关 键 词：输电线路 雷害 评估模型 致灾因子 

分 类 号：TM863[电气工程—高电压与绝缘技术]