A fault location method in distribution networks with fault-tolerant ability based on the wrong-logic region detection

Abstract

Considering the situations that the fault information in the distribution networks may be omitted and misinformed, their influence on the fault locating results are discussed in this paper, and a fault-tolerant fault location method is proposed based on the wrong-logic region detection. Firstly, the definition of wrong-logic area is given according to the minimum power distribution area. Then, from the following three aspects of whether to locate the correct fault area, whether to locate the false fault area and whether to find the wrong-logic region, the fault locating results are classified into three situations. Considering these three situations, a fault-tolerant fault location method is put forward in this paper. The simulation result shows and verifies the correctness and the good fault tolerance ability of this method. Its processing procedure is simple and it has high practical value.