Influence of discretization model and evaluation method on torque prediction in switched reluctance motor

Abstract

This study investigated the influence of using different discretization models and evaluation methods on predicting electromagnetic force and torque generated in switched reluctance motors. Four different discretization models were developed and used for comparison. The difference among these models is focused on shape, pattern and size of first-order elements around regions of airgap and pole tips of the stator and rotor. Based on these discretization models, Maxwell stress tensor method and work virtual principle were used to predict electromagnetic torque of switched reluctance motor. A well-designed 4-phase 8/6 IHP switched reluctance motor was used.