Abstract
This paper proposes an improved flux-intensifying permanent magnet machine to improve the flux weakening capability and speed range. Considering variable speed applications, the reverse saliency is optimized for constant-torque and constant-power operation conditions. To conveniently explore the optimal reverse saliency, the response surface method is purposely utilized for conducting optimization. Based on the optimal reverse saliency, the machine performances are analyzed and compared with the existing machine in detail, including flux linkages, inductances, torque performances, and operation performances. Both the theoretical analyses and simulation results indicate the validity of the machine design approach and the reverse saliency optimization.
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