Design and optimization analysis of variable-leakage-flux flux-intensifying PM machine

Longxin Du; Xiping Liu; Wenrui Wang; Jianwei Liang

doi:10.1117/12.2618216

29 November 2021 Design and optimization analysis of variable-leakage-flux flux-intensifying PM machine

Longxin Du, Xiping Liu, Wenrui Wang, Jianwei Liang

Proceedings Volume 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021); 120801Q (2021) https://doi.org/10.1117/12.2618216
Event: 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 2021, Nanchang, China

Abstract

This article proposes a variable-leakage-flux flux-intensifying permanent magnet machine (VLF-FIPMM). Through the addition of magnetic bridge and the innovative design of magnetic barrier, the machine owns the feature of Ld<Lq and variable-leakage-flux characteristic, which not only widens the speed, but also reduces the irreversible demagnetization risk and core loss. Firstly, the design idea and operating theory of the VLF-FIPMM are analyzed. At the same time, a multi-objective genetic algorithm based on sensitivity analysis is introduced to obtain the optimal torque, torque ripple and reverse saliency ratio. Then the overall performance of the VLF-FIPMM is compared with the conventional IPM machine. Finally, the stress and deformation of the VLF-FIPMM are simulated at high speed. The above simulation results also validate the reliability of the design method and optimization.

Citation Download Citation

Longxin Du, Xiping Liu, Wenrui Wang, and Jianwei Liang "Design and optimization analysis of variable-leakage-flux flux-intensifying PM machine", Proc. SPIE 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 120801Q (29 November 2021); https://doi.org/10.1117/12.2618216

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