MODELING OF SKEW USING THE FLUX-MMF DIAGRAM

The flux-MMF diagram has recently been used to predict torque ripple i n different machine types, This paper describes a simple and elegant m ethod, based on this technique, for predicting the effect of skew on t orque ripple in permanent-magnet machines, Although it is well known t hat skewing minimizes torque ripple, the paper quantifies the differen ce in the extent of minimization between the electromagnetic torque ri pple and the cogging torque.