Simulation Study on Transient Performance of Lightning Over-voltage of Transmission Lines
As the rapid development of EHV/UHV Power System towards high capacity and long distance, lightning fault has become the chief factor that affects the safe operation of transmission lines.In-depth research on the nature of transmission lines lightning accidents and precise evaluation of the lightning overvoltage performance of transmission line are extremely significant.In this paper, the lightning strike procedure of a 500kV transmission line is simulated using PSCAD/EMTDC, the transient performance of transmission line is analyzed respectively under three situations: return-stroke, shielding failure and no fault occurs.The waveform characteristic and change rule of overvoltage at strike point and transmitting in transmission line in these three cases are analyzed.
transmission lines return-stroke shielding failure overvoltage transient characteristics
Zihui Zhao Dong Dang Guangning Wu Xiaobin Cao Jun Zhu Li Chen Jinsong Hu
School of Electrical Engineering,Southwest JiaotongUniversity,Chengdu,Sichuan,610031,China China Power Engineering Consulting Group Corporation Beijing ,100011,China
国际会议
成都
英文
1-5
2011-11-01（万方平台首次上网日期，不代表论文的发表时间）