A 12-Slot 10-Pole Induction Motor with Wave Winding Rotor

In this paper, we investigate the effect of rotor winding configurations on driving an induction motor (IM) with a 12-slot 10-pole concentrated winding configuration of the stator, which is one of the fractional slot concentrated winding (FSCW) configurations. For the stator FSCW configuration, conventional rotor squirrel-cage windings are inadequate for sufficient drive torque. To address the issue, we employ rotor wave windings for the stator FSCW configuration to trap driving harmonic and completely eliminate the effects of other dominant harmonics in the stator rotating magnetic field (RMF). The theoretical and numerical analyses confirm the effectiveness of the rotor wave windings in filtering out undesirable stator RMF harmonics and improving the performance of the IM.