Simulation on lightning overvoltage of ±800kV converter station

摘要：

The insulation coordination of the UHVDC converter station is important for the security and economic of UHVDC system.In this paper we have built the Zhexi station and it’s 2kM line in segment’s mode, EMTP/PSCAD has been used to analysis the equipment’s lightning overvoltage.To analysis the most serious situation, the selection of AC field’s operation mode has been discussed in detail, measures to limit the lightning overvoltage have been introduced.To get the equipments’ maximum overvoltage, the polarity of station’s working voltage has been studied.Calculation shows that, with the same polarity of lightning and station’s working voltage, the equipments’ phase to ground voltage reaches to the maximum, while when the lightning’s polarity is opposite to the station’s, the equipments’ two ends voltage reach to the maximum.

关键词： component:±800 kV converter station lightning intruding overvoltage overvoltage and insulation coordination operation mode polarity

作者: Su Fei Zhou Hao

作者单位: College Of Electrical Engineering,Zhejiang UniversityHangzhou 310027,China College Of Electrical Engineering,Zhejiang University Hangzhou 310027,China

会议类型: 国际会议

会议名称: 第七届亚太防雷国际会议

会议地点: 成都

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-01（万方平台首次上网日期，不代表论文的发表时间）