Performance evaluation of D-STATCOM for mitigation of power quality problems at different source and load side fault conditions

One of the major issues in the present electrical power system is power quality. The power quality problems may be of many types whether at source side or load side. Distributed Static Synchronous Compensator (D-STATCOM) is the most convenient device among all FACTS devices for all these power quality problems. This paper deals with performance evaluation with and without D-STATCOM for voltage swell and sag at source side in one model and different types of faults conditions like LG, LLG, LLLG in other model. With the help of MATLAB/Simulink & SimPowerSystems software, the performance analysis of D-STATCOM has been done with conventional PI controller using Hysteresis Current Control (HCC) for the mitigation of these fault conditions.