Voltage Sag mitigation using shunt FACT devices in Induction Motor Drives

Abstract The development of the modern power system has led to an increasing complexity in the study of power systems, presents new challenges to power system stability, and in particular, to the aspects of transient stability and smallsignal stability. An assessment study of different shunt FACTS devices for compensating disturbances due to voltage variation in power systems is presented. In this paper. Namely, Static Compensator (STATCOM) Static Var Compensator (SVC) and D-STATCOM are considered. This paper shows the superiority of DSTATCOM over STATCOM and STATCOM over SVC in increasing motor speeding up and improving system voltage profile particularly at starting