1000kV同塔双回线路感应电压和电流的计算分析  

Calculation and Analysis on Induced Voltage and Current of 1 000 kV Transmission Line Adopting Structure of Double Circuit on the Same Tower

作　　者：李宝聚[1] 周浩[1] 

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027

出　　处：《电网技术》2011年第3期14-19,共6页Power System Technology

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

摘　　要：同塔双回输电线路在一回运行、一回检修时,检修回路及地线中会产生感应电压、电流。使用EMTP仿真计算了1 000 kV交流特高压同塔双回输电线路1回线路停运检修时,运行回路对检修回路和地线的感应电压、电流,并对输电线路和地线上的感应电压、电流的影响因素进行了分析。可为特高压同塔双回线路检修及带电作业等方面的工作提供参照依据。When one circuit of transmission line adopting the structure of double circuit on the same tower is being maintained and another circuit is being operated, induced voltage and current will come into existence in the line being maintained and the overhead ground wire, which may be overhead ground wire or overhead optical ground wire. Utilizing EMTP software, the 1 000 kV transmission line adopting the structure of double circuit on the same tower under the condition that one circuit of the transmission line is being maintained is simulatied while another circuit is being operated; the induced voltage and current in the line being maintained are calculated, besides the factors influencing the induced voltage and current in the line being operated and the overhead ground wire are analyzed. Results of this research are available for reference to the maintainence of UHVAC transmission line adopting the structrue of double circuit on the same tower and its live line work.

关 键 词：同塔双回 感应电压 感应电流 输电线路 换位方式 架空地线 

分 类 号：TM15[电气工程—电工理论与新技术]