1. Multi-Objective Optimal Design of the MFW-IPM Machine for Improve Flux-Weakening Ability.
- Author
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Xiping Liu, Gaosheng Guo, Wenjian Zhu, and Longxin Du
- Subjects
MACHINE design ,FINITE element method ,MACHINE performance ,MAGNETIC fields - Abstract
In this paper, a novel mechanical-flux-weakening interior permanent magnet (MFW-IPM) machine is proposed to improve flux-weakening ability. The key of the proposed machine is that the permanent magnet is rotatable, and a mechanical device is equipped on both sides of the rotor. The mechanical device can regulate the air-gap magnetic field by rotating PM to change the leakage flux and magnetization direction of PM. As a result, the flux-weakening ability is improved. The flux-weakening principle of the MFW-IPM machine is investigated in detail. In addition, a multi-objective optimization method is adopted to improve the performance of the proposed machine. Then, the electromagnetic performances of the original machine and optimized machine are compared by finite element analysis. Finally, both simulation results and experimental tests verify the effectiveness of the flux-weakening enhancement design and optimization method. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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