Direct duty ratio based pulse-width modulation technique for a three-to-five phase matrix converter for supplying five-phase two-motor drives

This paper analyses a three-to-five phase matrix converter to supply five-phase two-motor drive topology. It proposes simple direct duty ratio based pulse-width modulation (PWM) technique of a three-to-five phase matrix converter supplying a series/parallel connected five-phase AC motor drive system. The developed modulation technique is based on the comparison of a high frequency carrier signal with the duty ratio of the modulating signals. The major aim of the PWM is to generate two independent fundamental frequency components that will subsequently control the two series/parallel connected five-phase motors independently. The viability of the proposed control techniques is proven using analytical, simulation and experimental approaches.