Performance evaluations of three-phase voltage source instantaneous voltage vector modulated soft commutation inverter with active resonant snubbers in three-phase AC load side

This paper describes a three-phase voltage source-fed soft switching inverter system with auxiliary resonant AC link snubbers for CVCF application which incorporates by the optimal type-1 servo controller operated on the d-q coordinate frame. In this paper, the steady state and transient-state operating performance of this soft switching inverter and is illustrated and evaluated on the basis of its computer simulation analysis. The circuit design procedure of an active resonant snubber circuit topology on the AC side is illustrated by the simulation results. The effectiveness of this soft switching inverter is proved from a practical point of view.