特高压GIS变电站雷电侵入波过电压分析

Analysis on Lightning Intruding Over-voltage on UHV GIS Substation

针对特高压GIS变电站内雷电侵入波过电压问题,采用ATP-EMTP电磁暂态仿真程序,建立1 000kV GIS变电站的雷电过电压计算模型,通过对变电站内设备上最大过电压计算分析,验证变电站设备的绝缘裕度,进而确定并优化1 000kV GIS变电站避雷器的布置方案。

For the lightning intruding over-voltage on UHV GIS substation,using the electromagnetic transient simulation program ATP-EMTP,this paper establishes the lightning over-voltage simulation model.By calculating the maximum over-voltage on the equipments,this paper verifies the insulation margin of the equipments,then confirms and optimizes the arrangement of the lightning arresters in the 1 000 kV GIS substation.