A Novel Dual-Stator Axial-Flux Spoke-Type Permanent Magnet Vernier Machine for Direct-Drive Applications

Author

Fei Zhao ; Lipo, T.A. ; Byung-il Kwon

Author_Institution

Dept. of Electron. Syst. Eng., Hanyang Univ., Ansan, South Korea

Volume

50

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

1

Lastpage

4

Abstract

This paper proposes a novel double-stator axial-flux spoke-type permanent magnet vernier machine, which has a high torque density feature as well as a high-power factor at low speed for direct-drive systems. The operation principle and basic design procedure of the proposed machine are presented and discussed. The 3-D finite element method (3-D-FEM) is utilized to analyze its magnetic field and transient output performance. Furthermore, the analytical method and a simplified 2-D-FEM are also developed for the machine basic design and performance evaluation, which can effectively reduce the modeling and simulation time of the 3-D-FEM and achieve an adequate accuracy.

Keywords

electric drives; finite element analysis; magnetic fields; magnetic flux; permanent magnet machines; power factor; stators; torque; transients; 2D FEM; 3D FEM; 3D finite element method; analytical method; direct-drive application; dual-stator axial-flux spoke-type permanent magnet vernier machine; high-power factor; magnetic field; simulation time reduction; torque density feature; transient output performance; Magnetic separation; Permanent magnets; Reactive power; Rotors; Stator windings; Torque; Direct drive; double stator; finite element method (FEM); power factor; vernier machines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2329861

Filename

6971602