Vol. 93

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2021-09-15

Four-Objective Optimization and Multi-Physical Field Coupling Analysis of Variable-Leakage-Flux Flux-Intensifying PM Machine

By Xiping Liu, Longxin Du, Siting Zhu, and Jianwei Liang
Progress In Electromagnetics Research B, Vol. 93, 151-168, 2021
doi:10.2528/PIERB21080501

Abstract

This article proposes a new type of variable-leakage-flux flux-intensifying permanent magnet (VLF-FIPM) machine and performs optimization and multi-physical field analysis on it. By designing leakage flux bypass and various magnetic barriers, the proposed machine has the variable-leakage-flux characteristic and reverse saliency characteristic of Ld>Lq. Firstly, the evolution process from the conventional interior permanent magnet (IPM) machine to the proposed machine is explained. Secondly, the output torque, torque ripple, core loss and reverse saliency ratio of the proposed machine are optimized by multi-objective comprehensive optimization method. Then the electromagnetic performance of the optimal machine is compared with that of the initial machine and conventional IPM machine. Finally, the temperature field and stress field of the optimal machine in different states are analyzed in detail. Both theoretical results and simulation analysis verify the effectiveness of the proposed design idea and optimization of the VLF-FIPM machine.

Citation


Xiping Liu, Longxin Du, Siting Zhu, and Jianwei Liang, "Four-Objective Optimization and Multi-Physical Field Coupling Analysis of Variable-Leakage-Flux Flux-Intensifying PM Machine," Progress In Electromagnetics Research B, Vol. 93, 151-168, 2021.
doi:10.2528/PIERB21080501
http://www.jpier.org/PIERB/pier.php?paper=21080501

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