Proposal of Electrolytic Capacitor-less and Reactor-less drive system using triple three phase PMSM

In order to drive the PMSM with a three phase ac source, a converter and an inverter such as a PWM rectifier for source harmonics suppression are required. However, capacitors and reactors constituting converters make increase the system size and cost. In this paper, we propose a novel drive system using the triple three phase PMSM and three parallel inverters synchronously controlled with three phase ac source.