Vol. 111

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2021-04-09

Comparative Design and Analysis of a New Type of Mechanical-Variable-Flux Flux-Intensifying Interior Permanent Magnet Motor

By Xiping Liu, Gaosheng Guo, Wenjian Zhu, and Longxin Du
Progress In Electromagnetics Research C, Vol. 111, 225-239, 2021
doi:10.2528/PIERC21022305

Abstract

In this paper, a novel mechanical-variable-flux flux-intensifying interior permanent magnet (MVF-FI-IPM) motor is proposed, which employs a mechanical flux-adjusting device and owns the characteristic of Ld>Lq. The magnetic poles can be rotated by the mechanical device to vary the leakage flux and adjust the angle of magnetization direction relative to the d-axis. The characteristic of Ld>Lq is achieved through the adoption of surface flux barriers. The topology structure and operation principle of the machine are introduced. Then, the operation of the mechanical flux-adjusting device is analyzed by virtual prototype technology. Based on the two-dimensional finite element method (FEM), the electromagnetic characteristics of the proposed motor and FI-IPM motor are compared. Finally, the results show the proposed motor with a better flux-weakening capability and a lower risk of irreversible demagnetization than that of the FI-IPM motor.

Citation


Xiping Liu, Gaosheng Guo, Wenjian Zhu, and Longxin Du, "Comparative Design and Analysis of a New Type of Mechanical-Variable-Flux Flux-Intensifying Interior Permanent Magnet Motor," Progress In Electromagnetics Research C, Vol. 111, 225-239, 2021.
doi:10.2528/PIERC21022305
http://jpier.org/PIERC/pier.php?paper=21022305

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