A Nine-Switch Power Conditioner for Power & Voltage Profile Improvement

Abstract

A nine switch power conditioner is proposed instead of back-to-back converter. It has certain advantages over back to back converter. It contains nine switches compare to twelve switches back-to back converter. Additional advantage is that it has component saving topological feature. It is used in limited application due to oversized dc link capacitor, constrained phase shift between two output terminal and limited amplitude sharing. The novelty of this method is that the middle switch is shared by the inverter and rectifier mode. The designed control scheme is incorporated here. The validity of proposed nine switch power converter is verified through simulation.