应用电气几何模型的高速铁路接触网防雷性能分析 - 电网技术.pdf

38 卷 3 期 电 网 技 术 Vol. 38 No. 3 20 14 年3 月 Power System Technology Mar. 20 14 文章编号：1000-3673 （20 14）03-0812-05 中图分类号：TM 2 16 文献标志码：A 学科代码：470 4037 应用电气几何模型的高速铁路接触网防雷性能分析 卢泽军，谷山强，赵淳，向念文，严碧武，苏杰 （国网电力科学研究院，湖北省 武汉市 430074 ） Analysis on Lightning Performance for Catenary of High-Speed Railway Based on Electro-geometric Model LU Zejun, GU Shanqiang, ZHAO Chun, XIANG Nianwen, YAN Biwu, SU Jie (State Grid Electric Power Research Institute, Wuhan 430074, Hubei Province, China) ABSTRACT: Lightning strike on catenary is one of important 通铁路接触网引雷范围的2 倍左右。推导了高铁接触网直击 factors hazardous on safe and reliable operation of high-speed 雷跳闸率和感应雷跳闸率计算公式，典型线路的计算结果与 railway. In China the number of trip-out caused by lightning 实际运行数据结果表明计算误差在8.8%左右，计算方法较准 strike on catenary accounts for more than 30% of total trip-out 确，计算结果表明我国高铁接触网整体防雷性能较薄弱。 numbers due to faults. Both direct lightning strike and induced 关键词：接触网；电气几何模型；引雷范围；跳闸率；防雷 lightning strike can lead to trip-out of catenary, and F-line of 性能 the catenary is most easily to be lightning-stricken. Based on DOI 10.13335/j.1000-3673.pst.2014.03.041 electro-geometrical model the triggered lightning range around the catenary is analyzed and along with the increase of the 0 引言 height of the catenary conductor to the ground the triggered 我国幅员辽阔，电气化铁路横跨东西，纵贯南 lightning range around the catenary increases approximately 北，途经地理位置地形地貌千差万别，有统计数据 linearly. When the average height of the via