PSCAD/EMTDC Simulation of Power System to Study Influence of Network Parameters on Characteristic of Voltage Sag.

Abstract

The parameters of power system are having great influence on the characteristic of voltage sag. The faults in the power system are the most common reason for occurrence of important power quality problem, voltage sag in the system. Due to increasing use of sensitive and sophisticated control in almost all modern devices at industrial and residential consumer level, the Voltage sag which causes severe problem to these devices is necessary to analyze. The parameters which affects the characteristic of voltage sag as type of fault in the system, location of fault in the system, type of transformer, X/R ratio of transmission lines, type of transmission as single or double circuit transmission, Point on wave of sag initiation are studied in this paper. The system under study is simulated in PSCAD/EMTDC.