Comparison of theoretical and experimental performance of 10 hp switched reluctance motor

The authors present a comparison of the computed and measured performances of a 10 hp Oulton switched reluctance motor (SRM). The derivatives of the flux linkages with respect to rotor position angle and with respect to current excitation as a function of time are calculated. Using these results, calculated current waveforms of the SRM for different loads and speeds are compared with experimental results. The calculated and experimental instantaneous current, average torque, input power, efficiency, losses and temperature rise of the SRM are compared when pulsed voltage excitation is applied to the motor windings. In all cases there is quite good agreement between the theoretical and experimental results. In addition, the measured total losses, efficiencies and temperature rises for a 10 hp SRM and different induction motors of the same ratings are presented.<>