摘要
With proper phase module transformation,parallel lines can be decomposed to the same directional net and the reverse directional net. The propagation characteristics of traveling waves in the reverse directional net were analyzed,and the refraction coefficient at the fault point for a single phase fault was derived. In addition,the module selection was discussed. Simulation results show that satisfying accuracy can be achieved with the proposed method. Moreover,it is immune to fault types,fault resistances,and outside system parameters.
With proper phase module transformation, parallel lines can be decomposed to the same directional net and the reverse directional net. The propagation characteristics of traveling waves in the reverse directional net were analyzed, and the refraction coefficient at the fault point for a single phase fault was derived. In addition, the module selection was discussed. Simulation results show that satisfying accuracy can be achieved with the proposed method. Moreover, it is immune to fault types, fault resistances, and outside system parameters.
基金
Sponsored by the Ph.D. Programs Foundation of Ministry of Education of China(Grant No.20070286047)
the Scientific Innovation Foundation forYoungster of CSEE
