Sensorless rotor velocity tracking control for induction motors

Author

Feemster, M. ; Aquino, P. ; Dawson, D.M. ; Haste, D.

Author_Institution

Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA

Volume

3

fYear

1999

fDate

1999

Firstpage

2158

Abstract

We present a sensorless control algorithm that achieves semi-global exponentional rotor velocity tracking for the full-order, nonlinear dynamic model of an induction motor actuating a mechanical subsystem. The proposed controller utilizes stator current measurements but is termed sensorless due to the inexpensive/simplistic manner in which stator current measurements can be obtained (e.g., relatively inexpensive Hall effect current sensors can be used to obtain current measurements). The control strategy utilizes a novel rotor velocity observer which facilitates the potential for improved rotor velocity tracking transient performance

Keywords

angular velocity control; induction motors; machine control; nonlinear dynamical systems; observers; rotors; stators; tracking; transient response; induction motors; nonlinear dynamic model; observer; rotors; sensorless control; stator current measurements; transient response; velocity control; velocity tracking; Control systems; Current measurement; Hardware; Induction motors; Mechanical sensors; Rotors; Sensor systems; Sensorless control; Stators; Velocity control;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1999. Proceedings of the 1999

Conference_Location

San Diego, CA

ISSN

0743-1619

Print_ISBN

0-7803-4990-3

Type

conf

DOI

10.1109/ACC.1999.786329

Filename

786329