Title :
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
fDate :
3/1/2002 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
