A novel phase to phase fault location algorithm for distribution network with distributed generation

Abstract

This paper presents the design and simulation of a method for phase to phase fault location for distribution network with distributed generation (DG). In the last years, fault location on power distribution networks is receiving especial attention due to the importance of a fast actuation to clear the fault causes and the resulting reduce outage time and significantly improve system reliability. This paper presents the design and simulation of a method for phase to phase fault location for distribution network with distributed generation (DG). In this method, the distribution network is divided into two parts and then with voltage and current measurements at the substations of main system supply and DG supply fault location is found. Moreover, a new method is proposed for sections between main substation and DG in order to reduce residual error. Results show that the method can efficiently improve the process of fault location and is well suited for identifying phase to phase fault location in different fault resistances. Also this method has greatly simplified the derivation of complicated fault location equation especially in sections before DG and therefore can superiorly enhance the fault location process. (4 pages)