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A new space vector PWM technique for an indirect matrix converter based open-end winding drive is presented in this paper - The presented drive achieves the advantages of direct conversion, viz. 1) Machine phase voltages up to 1.5 times the grid voltage, 2) controllable grid power factor, and 3) zero instantaneous common mode voltage; and further achieves, 4) lower number of switching transitions and 5) simpler protection clamp circuit, owing to two-stage conversion. A detailed analysis of the PWM technique is presented along with the simulation results. Further, commutation strategies for the matrix converters of the presented drive have been developed and the simulation results are included.
Tewari et al. (Tue,) studied this question.