Proposal of a Nine-Switch Inverter that can Independently Control Amplitude and Frequency for Two Loads

Abstract

This paper proposes a novel inverter that can independently control two loads. The inverter has nine switches and is made from combined two three-phase inverters with three common switches. A gate signal for each switch is generated by a novel PWM modulation. An experimental apparatus and a cost become small using this inverter. In this paper, a structure of the inverter is introduced. Then, a novel PWM modulation for the inverter is proposed. Finally, an effectiveness of the inverter is shown by comparing the simulation result with the experimental result.