Transient analysis of a new outer-rotor permanent-magnet brushless DC drive using circuit-field-torque coupled time-stepping finite-element method

Author

Wang, Yong ; Chau, K.T. ; Chan, C.C. ; Jiang, J.Z.

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, China

Volume

38

Issue

2

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

1297

Lastpage

1300

Abstract

In this paper, a new outer-rotor permanent magnet (PM) brushless DC drive is designed and analyzed. To enable this drive to be applied to electric vehicles, its transient performances at both normal and flux-weakening operations are particularly focused. The distinct feature in design is due to the new motor configuration including the outer-rotor topology, the multipole magnetic circuit and the full slot-pitch coil span arrangement. The distinct feature in analysis is due to the development of the circuit-field-torque coupled time-stepping finite-element method. The proposed PM brushless DC drive is prototyped. The analysis results are verified by experimental measurement

Keywords

DC motor drives; brushless DC motors; finite element analysis; machine theory; magnetic circuits; permanent magnet motors; rotors; torque; transient analysis; PM brushless DC drive; circuit-field-torque coupled time-stepping finite-element method; flux-weakening operations; full slot-pitch coil span arrangement; motor configuration; multipole magnetic circuit; normal operations; outer-rotor permanent-magnet brushless DC drive; outer-rotor topology; transient performances; Circuit topology; Coils; Coupling circuits; Electric vehicles; Finite element methods; Magnetic analysis; Magnetic circuits; Permanent magnet motors; Permanent magnets; Transient analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.996331

Filename

996331