±800kV宾金线浙江段线路走廊雷电活动参数分析  

Analysis on Lightning Activity Parameters of ±800kV Binjin Line Corridor in Zhejiang Province

作　　者：李特 骆阗彦 王少华 周象贤 吴军[2] LI Te;LUO Tianyan;WANG Shaohua;ZHOU Xiangxian;WU Jun(Electric Power Research Institute of State Grid Zhejiang Electric Power Company,Hangzhou 310014,China;Wuhan NARI Limited Company of State Grid Electric Power Research Institute,Wuhan 430074,China)

机构地区：[1]国网浙江省电力有限公司电力科学研究院,浙江杭州310014 [2]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074

出　　处：《电工技术》2018年第15期19-22,共4页Electric Engineering

摘　　要：为掌握±800kV宾金线浙江段线路走廊的雷电活动参数以作为线路防雷计算等工作的基础,利用雷电监测系统,对其进行网格划分,并对2010~2016年雷电参数进行了统计分析。结果表明,±800kV宾金线浙江段线路走廊靠近浙赣边界和金华换流站两段的雷电日数、地闪密度较大,属于雷电活跃区域;雷电流幅值累积概率分布可用IEEE推荐公式取得良好的拟合效果;沿线正地闪的主放电回击次数小于负地闪的主放电回击次数;不同年份雷电日、地闪密度差异较大,正地闪比例、雷击主放电回击次数均值保持稳定。In order to master the lightning activity parameters of ＋800 kV Binjin line in Zhejiang, and take them as the basis of the lightning protection computation of the line, the Binjin line is meshed and the lightning parameters from 2010 to 201G are analysed based on the lightning monitoring system. The results indicate that the meshes near the province boundary between Zhejiang and Jiangxi and the meshes near Jinhua converter station have more lightning days and higher cloud to ground lightning density than the rest section. The cumulative probability distribution of lightning current ampli rude can be well fitted by the recommended formula IEEE. The numbers of main discharge return-stroke of positive cloud to ground lightning are less than that of negative cloud to ground lightning along the line, and the lightning days and cloud to ground lightning density vary greatly in different years. However, both the proportion of positive cloud to ground lightning and the numbers of main discharge return-stroke keep stable.

关 键 词：雷电日 地闪密度 雷电流 幅值 回击次数 

分 类 号：TM85[电气工程—高电压与绝缘技术]