Predicting the steady-state performance of a switched reluctance machine

The 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 is presented. Proper switching strategies, such as the current limit (chopping) and angle controls, are used in stimulating the drive for different speeds and loadings. The instantaneous torque and flux linkage, inductances, and back EMF are obtained from accurately calculated static characteristics of the motor using surface interpolation techniques. Special techniques are used in he mesh modeling of the high gradient field within the airgap and in the postprocessing of the field solution. This ensures good accuracy in the motor parameters and static characteristics that are essential to producing steady-state predictions, which agree favorably with experimental results.<>