淮南～皖南～浙北～沪西1000kV交流同塔双回线路架空地线感应电压和感应电流仿真分析  

Simulation and analysis of induced voltage and current on overhead ground wire of Huainan～Wannan～Zhebei～Huxi 1000kV UHV AC double-circuit transmission line

作　　者：李宝聚[1] 周浩[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《电力系统保护与控制》2011年第10期86-89,96,共5页Power System Protection and Control

基　　金：国家重点基础研究发展计划项目(973项目)(2011CB209405)

摘　　要：用EMTP仿真计算了淮南～皖南～浙北～沪西1000kV交流同塔双回线路架空地线感应电压和感应电流,并对架空地线上的感应电压、电流的影响因素进行分析。具体仿真计算得出大、小运行方式下不同运行状况的特高压同塔双回线路架空地线的感应电压、电流的幅值。分别仿真分析了相序排列、地导线间距、线路负荷以及绝缘地线分段长度等因素对架空地线感应电压、电流的影响。研究结论可为特高压输电线路检修与带电作业,以及感应电压、电流的利用等方面的工作提供借鉴。Induced voltage and current on overhead ground wire of Huannan-Wannan-Zhebei-Huxi 1000kV UHV AC double-circuit transmission line are simulated and calculated by EMTP,and also the factors that affect the induced voltage and current are analyzed.Specifically,the amplitudes of induced voltage and current in large and small operation modes are calculated.Besides,the effects of factors such as the transposition form, the distance between the conductor and ground wire,the transmission power and ground line sectionalisation length on the induced voltage and current on overhead ground wire are simulated and analyzed in detail.The results can provide a reference for many aspects of UHV AC transmission line,such as the maintenance,live line work and rational utilization of induced voltage and current.

关 键 词：特高压 同塔双回 感应电压 感应电流 架空地线 仿真计算 

分 类 号：TM726.3[电气工程—电力系统及自动化]