Study of Lighting Back Strike Intruding Wave Based on Orthogonal Design Model
Lightning strike accident is one of the most important factors affecting safe and stable operation of power sys-tem.Particularly,large lightning attack invasion wave induced by the lightning back strike is the main cause of power e-quipment failure.Previous works have studied a lot about lightning intruding waves but rarely conducted multi-factor com-prehensive analysis.In this work,the orthogonal design model was established to analyze influences of strike point,tower grounding resistance Rd and portal type frame grounding resistance Rm on lightning intruding over-voltage.Our results showed that the lightning intruding over-voltage reaches the worst in situations of A2B0C0(lightning#3,Rd=10 Ωand Rm=10 Ω)and A2B0C2(lightning#3,Rd=10 Ωand Rm=0.5 Ω).
lighting back strikeintruding waveorthogonal design modelmodeling and simulation
万方数据
维普
