DocumentCode
1248779
Title
Implicit rotor-position sensing using motor windings for a self-commutating permanent-magnet drive system
Author
Binns, K.J. ; Shimmin, D.W. ; Al-Aubidy, K.M.
Author_Institution
Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
Volume
138
Issue
1
fYear
1991
fDate
1/1/1991 12:00:00 AM
Firstpage
28
Lastpage
34
Abstract
The authors describe a novel method of rotor-position sensing of permanent-magnet machines, which requires no encoder nor any modification to conventional machines. The machine is electronically commutated, by virtue of position sensing, achieved through measuring the modulation in the inverter carrier frequency component, caused by the positional variation in motor winding impedance. A closed-loop speed control system drives the motor with precision and at maximum efficiency for a wide range of load and speed
Keywords
angular velocity control; closed loop systems; commutation; electric drives; machine control; permanent magnet motors; position control; rotors; closed-loop speed control system; electronically commutated; impedance; inverter carrier frequency component; machine control; modulation; motor windings; rotor-position sensing; self-commutating permanent-magnet drive system;
fLanguage
English
Journal_Title
Electric Power Applications, IEE Proceedings B
Publisher
iet
ISSN
0143-7038
Type
jour
Filename
62465
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