Modeling and Analysis of Static Var Compensator Based on Three Phase PWM Cuk AC-AC Converter

In this paper, a static var compensator using PWM Cuk AC-AC converter is presented. The PWM Cuk AC-AC converter is modeled by using complex circuit DQ transformation whereby the basic condition to be used as a var compensator is derived and the characteristic equations such as reactive power and input current are analytically obtained. Moreover, AC analysis is given by perturbing the complex DQ circuit. Finally, the PSIM simulations show the validity of the modeling and analysis.