Back-EMF Harmonic Analysis and Fault-Tolerant Control of Flux-Switching Permanent-Magnet Machine With Redundancy

Author

Zhao, Wenxiang ; Cheng, Ming ; Hua, Wei ; Jia, Hongyun ; Cao, Ruiwu

Author_Institution

Sch. of Electr. Eng., Southeast Univ., Nanjing, China

Volume

58

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

1926

Lastpage

1935

Abstract

A flux-switching permanent-magnet (PM) (FSPM) machine is a new class of stator-PM brushless machines, which offers the advantages of high reliability, high power density, and high efficiency. In this paper, by employing redundant winding in the existing FSPM machine topology, a new redundant FSPM (R-FSPM) machine is proposed for a fault-tolerant operation of critical applications. The redundant winding configuration is analyzed, and the corresponding suitable control strategy for the postfault operation is proposed. The electromagnetic performance of the R-FSPM motor drive under normal and fault conditions is analyzed by using a cosimulation method coupling magnetic and electrical circuit solvers. Finally, a 12-stator-tooth/10-rotor-pole R-FSPM machine is prototyped for verification. Both simulation and experimental results are presented, verifying the fault-tolerant characteristic of the proposed motor drive.

Keywords

brushless DC motors; electric potential; fault tolerance; harmonic analysis; permanent magnet machines; stators; back-EMF harmonic analysis; cosimulation method coupling; electrical circuit solvers; fault-tolerant control; flux-switching permanent-magnet machine; high efficiency; high power density; high reliability; magnetic circuit solvers; redundant winding; stator-PM brushless machines; Brushless machines; Electromagnetic coupling; Fault tolerance; Harmonic analysis; Machine windings; Magnetic analysis; Motor drives; Redundancy; Stators; Topology; Cosimulation; fault-tolerant drive; redundancy; stator-permanent-magnet (PM) machine;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2010.2050758

Filename

5475255