FDTD Computation of Lightning Surges on Overhead Wires in the Presence of Corona Discharge
In this paper, a simplified model of corona discharge for the finite-difference time-domain (FDTD) computations has been applied to analyzing a lightning surge propagating along a 12.65-mm-radius and 1.4-km long overhead horizontal wire, which simulates the experiment of Inoue (1983).The critical electric field on the surface of the 12.65-mm-radius wire for corona initiation is set to E0=1.4, 2.4 or 2.9 MV/m.The critical background electric field for streamer propagation is set to Ecp=0.5 MV/m for positive voltage applications, and Ecn=1.5 MV/m for negative voltage applications.The FDTD-computed waveforms of surge voltage at different distances from the energized end of the wire agree reasonably well with the corresponding measured waveforms.
Corona discharge FDTD method lightning surge
Tran Huu Thang Yoshihiro Baba Naoto Nagaoka Akihiro Ametani Jun Takami Shigemitsu Okabe Vladimir A. Rakov
Doshisha UniversityKyotanabe,Kyoto 610-0321,Japan Tokyo Electric Power Company,R&D CenterYokohama,Kanagawa 230-8510,Japan University of Florida Gainesville,FL32611,USA
国际会议
成都
英文
1-4
2011-11-01(万方平台首次上网日期,不代表论文的发表时间)