Six-leg DC-link rectifier/inverter for two-phase machines

摘要

This paper proposes two different configurations of two-phase induction motor drives. These topologies utilize a single-phase supply to feed a two-phase machine/load and are more suitable when the amplitude of the load voltage is half the amplitude of the grid voltage. One of the topologies is transformerless and the other is transformer-based. The drive systems provide power factor control and DC-link voltage control. Pulsewidth modulation techniques for the converter control are discussed. Simulation and experimental results are provided to illustrate and compare the operation of the systems.