平行线路间感应问题影响因素研究  

A Study on Influence Factors of Induction between Parallel Lines

作　　者：张嘉旻[1] 王凯[2] 马仁明[1] 赵丹丹[1] 

机构地区：[1]华东电力试验研究院有限公司,上海200437 [2]华东电网有限公司,上海200002

出　　处：《华东电力》2011年第3期411-414,共4页East China Electric Power

基　　金：国家电网公司科技项目~~

摘　　要：应用EMTP对多种运行状况下平行线路间感应电压和电流的计算,分析了线路换位、平行间距、平行线路长度以及平行比例等因素。结果表明:线路换位能大大减小平行线路之间的感应电压和环流;平行线路间的感应电压和环流随着平行线路间距的增大而呈指数衰减;平行线路长度对平行线路的感应电压和环流影响不大;平行线路感应电压和电流与平行部分占总线路长度的比例呈正比。Induced voltage and current between parallel lines under multi-operations-status are calculated by EMTP,and so the factors such as transportation,the space between two parallel lines,the length of parallel lines,and the percentage of parallel in whole line are analyzed at.The result indicates that transportation can greatly reduce the induced voltage and current between two parallel lines;the induced voltage and current between two parallel lines will exponential attenuate along with the increase of the space between two parallel lines;the less effect to induced voltage and current will be made by the length of parallel lines;the induced voltage and current have direct ratio with the percentage of parallel lines in whole line.

关 键 词：平行线路 感应电压 感应电流 线路换位 平行间距 

分 类 号：TM751[电气工程—电力系统及自动化]