PERFORMANCE ANALYSIS OF ASYMMETRICAL INVERTER FED STATCOM FOR REACTIVE POWER COMPENSATION

Abstract

Fast acting static synchronous compensator (STATCOM), belonging to FACTS family, is a promising technology now days being extensively used as the state-of-the-art for reactive power control in transmission and distribution system. Over the last couple of decades, many • STATCOM controllers based on the self-commutating solid-state voltage-source converter (VSC) have been developed and commercially put in operation to control system dynamics under stressed conditions. Because of its many attributes, STATCOM has emerged as a qualitatively superior controller relative to the line commutating static VAR compensator (SVC). This thesis deals with performance analysis of Asymmetrical Inverter fed STATCOM for reactive power compensation. Mathematical model of system is derived based on which controller for the scheme is designed. The effectiveness of the scheme is verified through detailed simulation study. Hardware prototype has also been developed.