Robust speed-controlled induction-motor drive using EKF and RLS estimators
Robust speed-controlled induction-motor drive using EKF and RLS estimators
- Author(s): F.-J. Lin
- DOI: 10.1049/ip-epa:19960287
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- Author(s): F.-J. Lin 1
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View affiliations
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Affiliations:
1: Department of Electrical Engineering, Chung Yuan Christian University, Chung Li, Republic of China
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Affiliations:
1: Department of Electrical Engineering, Chung Yuan Christian University, Chung Li, Republic of China
- Source:
Volume 143, Issue 3,
May 1996,
p.
186 – 192
DOI: 10.1049/ip-epa:19960287 , Print ISSN 1350-2352, Online ISSN 1359-7043
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 (IP) 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.
Inspec keywords: least squares approximations; observers; electric resistance; two-term control; velocity control; machine control; robust control; induction motor drives; rotors; recursive estimation; damping; Kalman filters; torque
Other keywords:
Subjects: Stability in control theory; Simulation, modelling and identification; Drives; Interpolation and function approximation (numerical analysis); Control of electric power systems; Asynchronous machines; Velocity, acceleration and rotation control; Other topics in statistics; Interpolation and function approximation (numerical analysis); Other topics in statistics; Signal processing and detection
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