考虑大地分层结构时避雷线电能损耗的计算方法  

Power Loss Calculation in Lightning Shield Line With Layered Soil Structure

作　　者：全玉生[1] 卢亚军[1] 刘赫[1] 李苏辉[1] 

机构地区：[1]华北电力大学高电压与电磁兼容北京市重点实验室,北京102206

出　　处：《电工技术学报》2011年第5期178-183,共6页Transactions of China Electrotechnical Society

摘　　要：考虑到大地的非均匀性,为准确计算高压输电线路避雷线中的电能损耗,建立了土壤水平分层模型,以两层土壤为例,基于麦克斯韦方程组,推导出了电磁场等效作用宽度的计算公式,提出了考虑土壤水平分层结构时避雷线各阻抗参数的计算方法。In view of the heterogeneity for the earth,a multi-layer horizontal soil model is built in order to calculate the power loss accurately in lightning-shield line for high voltage transmission.Based on Maxwell＇s equations,the formulas of equivalent width for the electromagnetic field are deduced,this article also puts forward a way of the calculation for impedance in the lightning-shield line when considering the two-layer horizontal soil.

关 键 词：避雷线 电能损耗 多层土壤 等效宽度 

分 类 号：TM835[电气工程—高电压与绝缘技术]