Optimal torque control of fault-tolerant permanent magnet brushless machines

Author

Wang, Jiabin ; Atallah, Kais ; Howe, David

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Sheffield, UK

Volume

39

Issue

5

fYear

2003

Firstpage

2962

Lastpage

2964

Abstract

Describes a novel optimal torque control strategy for fault-tolerant permanent magnet brushless ac drives operating in both constant torque and constant power modes. The proposed control strategy enables ripple-free torque operation to be achieved while minimizing the copper loss under voltage and current constraints. The utility of the proposed strategy is demonstrated by computer simulations on a five-phase fault-tolerant drive system.

Keywords

AC motor drives; brushless machines; fault tolerance; machine control; optimal control; permanent magnet machines; torque control; ac drives; computer simulations; constant power modes; constant torque modes; copper loss; current constraints; fault-tolerant permanent magnet brushless machines; five-phase fault-tolerant drive system; optimal torque control; ripple-free torque operation; voltage constraints; Aerospace safety; Brushless machines; Copper; Fault tolerance; Fault tolerant systems; Isolation technology; Permanent magnet machines; Permanent magnets; Torque control; Voltage control;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.816707

Filename

1233273