A new utility algorithm of processing fault in distribution network based on searching tree

According to the structural characteristics of the distribution network, this paper propose an algorithm that based on searching tree for fault section detections, isolation and recovery in distribution system. According to the relationship between each switch contact, the algorithm constructs a tree model of the distribution network, on this basis, search out fault section and find out more than one recovery power pains by using fault information collected by FTUs and DTUs. Algorithm case show that this algorithm is effective to not only single-fault, but also multiple-fault. This algorithm has inhibition ability of distribution terminal error signal, therefore. This algorithm has a high practicability.