Auxiliary resonant commutated snubber linked 3-level 3-phase voltage source soft-switching inverter

This paper presents a performance analysis in steady-state of a novel type auxiliary resonant commutation snubber-linked three-level three-phase voltage source-type soft-switching inverter suitable and acceptable for high-power applications in comparison with the resonant DC linked three-level three-phase voltage source-type soft-switching inverter proposed previously which can operate under a condition of zero voltage switching (ZVS). The digital control scheme of this inverter is presented. The steady-state performances of this inverter are illustrated and evaluated on the basis of the simulation results.