A singular perturbation approach to sensorless control of a permanent magnet synchronous motor drive

Author

Song, T. ; Rahman, M.F. ; Lim, K.W. ; Rahman, Md Arifur

Author_Institution

Sch. of Electr. Eng., New South Wales Univ., Sydney, NSW, Australia

Volume

14

Issue

4

fYear

1999

fDate

12/1/1999 12:00:00 AM

Firstpage

1359

Lastpage

1365

Abstract

For most surface mounted permanent magnet synchronous motors, the electrical time constant is relatively small due to its large air gap. This has been exploited with small parameter perturbation techniques to develop observers for the position and speed using measurements of currents. In this paper, a singular perturbation algorithm is experimentally evaluated for both current commutation and closed loop speed control of a permanent magnet synchronous motor drive. An improved algorithm is then proposed and related implementation issues are presented

Keywords

angular velocity control; closed loop systems; commutation; machine control; observers; permanent magnet motors; singularly perturbed systems; synchronous motor drives; closed loop speed control; current commutation; current measurement; electrical time constant; permanent magnet synchronous motor drive; position observers; sensorless control; singular perturbation algorithm; singular perturbation approach; small parameter perturbation techniques; surface mounted permanent magnet synchronous motors; Current measurement; Magnetic sensors; Permanent magnet motors; Perturbation methods; Position measurement; Rotors; Sensorless control; Synchronous motors; Velocity control; Velocity measurement;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.815073

Filename

815073