Abstract
In this paper, the authors take a particular look at the influence of mixed stator winding arrangementson torque ripple production in a 30 stator slots, 2-pole, and five-phase induction machine. The con-ventional five-phase double layer windings with 14/15 and 13/15 chorded coils are compared with theproposed five-phase mixed winding arrangements. This paper presents the design consideration andcalculation of winding factors of the proposed mixed winding configurations. The different five-phasewinding arrangements have been modelled using Finite Element Methods. The results obtained from sim-ulation are compared to those obtained from experimental measurements. Both simulation and practicalresults have proven that the combination of double and triple layer winding, mixed with coil side shiftto other layer, has tremendously reduced the torque ripple factor while maintaining the torque average.