18 Sided Space Vector Modulation Method for Open End Winding Induction Machine Using a Single DC Source

A drive scheme for Open End Winding Induction Motor (OEW IM) using two 2- level inverters and a single DC source is discussed in this paper. The first inverter has a DC source and the sector inverter only has a DC link capacitor across it. The vectors of the two inverters are selected such that an 18 sided voltage vector space is created across the windings of the motor. The switching vectors of both inverters are chosen such that the voltage across the capacitor of the second inverter will be automatically regulated without any closed loop voltage controller.