Robust speed-controlled induction-motor drive using EKF and RLS estimators

Author

Lin, F.-J.

Author_Institution

Dept. of Electr. Eng., Chung Yuan Christian Univ., Chung Li, Taiwan

Volume

143

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

186

Lastpage

192

Abstract

An induction-motor (IM) speed drive, with the application of an extended Kalman filter (EKF) and a proposed recursive least-square (RLS) estimator, is introduced. The rotor resistance of the IM is identified by the EKF, and the rotor inertia constant, the damping constant and the disturbed load torque of the IM are estimated by the proposed RLS estimator, which is composed of an RLS estimator and a torque observer. The integral proportional speed controller is on-line, designed according to the estimated rotor parameters. Then the observed disturbance torque is fed forward to increase the robustness of the induction-motor speed drive

Keywords

Kalman filters; damping; electric resistance; induction motor drives; least squares approximations; machine control; observers; recursive estimation; robust control; rotors; torque; two-term control; velocity control; damping constant; disturbed load torque; extended Kalman filter; induction-motor drive; integral proportional speed controller; observed disturbance torque; recursive least-square estimator; robust speed-control; rotor inertia constant; rotor parameters estimation; rotor resistance;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:19960287

Filename

502228