A solution of power quality issues by adaptive FACTS controller: A modelling and simulation

The Static Var Compensator (SVC), a first generation FACTS controller is taken up for study. It is a variable impedance device where the current through reactor is controlled using bidirectional thyristor valves. The application of SVC is initially for load compensation of fast changing loads. Here the objective is to provide dynamic power factor improvement and also balance the currents on the source side whenever required. The work deals with the analytical studies, modeling and simulation of SVC to make it possible competent compensator of current generation. The investigation is carried out on different configuration of SVCs. The result of that thyristor binary compensator (TBC) type of thyristor switched capacitor (TSC) in conjunction with smallest step size thyristor controlled reactor (TCR) configuration turn out to be best solution over major power quality issues.