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Cogging torque calculation considering magnetic anisotropy for permanent magnet synchronous motors

Cogging torque calculation considering magnetic anisotropy for permanent magnet synchronous motors This paper describes the cogging torque of the permanent magnet synchronous (PM) motors due to the magnetic anisotropy of motor core. The cogging torque due to the magnetic anisotropy is calculated by the finite element method using two kinds of modeling methods: one is the 2D magnetization property method, and the other is the conventional method. As a result, the PM motors with parallel laminated core show different cogging torque waveform from the PM motors with the rotational laminated core due to the influence of the magnetic anisotropy. The amplitudes of the cogging torque are different depending on the modeling methods in the region of high flux density. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering Emerald Publishing

Cogging torque calculation considering magnetic anisotropy for permanent magnet synchronous motors

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Publisher
Emerald Publishing
Copyright
Copyright © 2004 Emerald Group Publishing Limited. All rights reserved.
ISSN
0332-1649
DOI
10.1108/03321640410540548
Publisher site
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Abstract

This paper describes the cogging torque of the permanent magnet synchronous (PM) motors due to the magnetic anisotropy of motor core. The cogging torque due to the magnetic anisotropy is calculated by the finite element method using two kinds of modeling methods: one is the 2D magnetization property method, and the other is the conventional method. As a result, the PM motors with parallel laminated core show different cogging torque waveform from the PM motors with the rotational laminated core due to the influence of the magnetic anisotropy. The amplitudes of the cogging torque are different depending on the modeling methods in the region of high flux density.

Journal

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering – Emerald Publishing

Published: Sep 1, 2004

Keywords: Magnetic fields; Torque; Laminates

References

  • Design of tooth‐wound permanent magnet synchronous motors for reducing torque ripples
    Daikoku, A.; Yamaguchi, S.
  • A proposal of finite‐element analysis considering two‐dimensional magnetic properties
    Fujiwara, K.; Adachi, T.; Takahashi, N.
  • An improved numerical analysis of flux distributions in anisotropic material
    Nakata, T.; Fujiwara, K.; Takahashi, N.; Nakano, N.; Okamoto, N.