Predicting the steady-state performance of a switched reluctance machine

Modeling and computational techniques for predicting the steady-state characteristics of a switched reluctance motor (SRM) drive over a wide range of torque/speed variations, dealing with both current- and angle-controlled modes of operation, are presented. Special techniques are used in the mesh modeling of the high gradient field within the airgap and in the postprocessing of the field solution to ensure good accuracy in the motor parameters and static characteristics that are essential to producing steady-state predictions that agree favorably with experimental results. The instantaneous torque and flux linkage, inductances, and back electromotive force are obtained from accurately calculated static characteristics of the motor using surface interpolation techniques