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