1000kV单回线路对500kV线路感应电压和电流计算分析

Calculation and Analysis of Induced Voltage and Current on 500kV Transmission Line Caused by Single-Circuit 1000kV Transmission Line

1 000 kV特高压输电线路会对其附近的500 kV超高压输电线路产生感应电压和电流。使用EMTP软件仿真计算了1 000 kV交流特高压单回输电线路运行时,附近与之平行的500 kV交流超高压输电线路的感应电压和电流,并对500 kV输电线路上感应电压和电流的影响因素进行了分析。可为500 kV线路运行、检修和接地刀闸选择提供参考依据。

1 000 kV transmission line causes considerably high induced voltage and current on the nearby 500 kV transmission line. EMTP software is adopted to calculate the induced voltage and current on the 500 kV transmission line cause by the nearby single-circuit operating 1000 kV transmission line. In addition,the factors influencing the maximum value of the induced voltage and current are analyzed. The research results are available for reference to the maintenance and equipment selection of the 500 kV transmission line with a single-circuit 1000 kV transmission nearby.