Comparative study of transient voltage drop detection techniques in electric power distribution system under fault operation

Abstract

This paper presents a comparative study of transient voltage drop detection techniques in electric power distribution system under four types of fault operation. There are four techniques for consideration such as Fourier transformation, Park's transformation, Symmetrical component and RMS. MATLAB/Simulink blocks used for simulation with IEEE 4 bus radial distribution test system and 4 bus loop distribution test system. This paper focus on the sensitivity of each technique for detection the transient voltage drop in term of time comparison. The simulation result shown that symmetrical component technique is the best technique which spends a shorter time for detecting transient voltage drops for both of two test systems while the load bus number four was fault.