Space Vector Modulation of a Six-Phase VSI based on three-phase decomposition

Abstract

A new space vector modulation (SVM) technique having a full and independent control of the multiple voltage space vectors of a six-phase voltage source inverter is presented in this paper. The proposed space vector approach is based on three-phase decomposition, leading to the modulation of two three-phase VSIs. The six-phase load consists in a dual three-phase induction motor, with insulated neutral points. The voltage limits are investigated and the analytical developments are proved by a complete set of simulation results.