Comparison of Halbach and Dual-Side Vernier Permanent Magnet Machines

Author

Dawei Li ; Ronghai Qu ; Zhe Zhu

Author_Institution

State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

50

Issue

2

fYear

2014

fDate

Feb. 2014

Firstpage

801

Lastpage

804

Abstract

A closed-form analytical model is developed to build the special rules for vernier permanent magnet (VPM) machines comparison. Based on the finite element analysis (FEA), comparisons of some key parameters including power factor are made among three novel VPM topologies, i.e., Halbach, dual-stator (DS), and DS spoke-array (DSSA) structures. The results from both the analytical model and FEA model demonstrate that the DSSA VPM machine exhibits highest power factor, viz., ~0.91, highest torque density and fewest magnet usage.

Keywords

finite element analysis; permanent magnet machines; power factor; stators; DS spoke array structures; DSSA VPM machine; Halbach permanent magnet machines; closed form analytical model; dual side vernier permanent magnet machines; dual stator structures; finite element analysis; magnet usage; power factor; torque density; Decision support systems; Iron; Magnetic flux; Reactive power; Rotors; Topology; Torque; Closed-form analytical model; finite element analysis; power factor; vernier permanent magnet (PM) machines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2280760

Filename

6749235