A new adaptive approach for on-line parameter and state estimation of induction motors

A novel adaptive observer is proposed to perform on-line estimation of both state and parameters of the electrical part of induction motors. The rotor mechanical speed and the stator currents/voltages are assumed to be measured. A particular non-minimal state representation of the machine electrical...

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Bibliographic Details
Published in:Control engineering practice 2005, Vol.13 (1), p.81-94
Main Authors: Castaldi, Paolo, Geri, Walter, Montanari, Marcello, Tilli, Andrea
Format: Article
Language:English
Subjects:
Adaptive observer
Induction motor
Non-minimal realization
Parameter identification
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Summary:A novel adaptive observer is proposed to perform on-line estimation of both state and parameters of the electrical part of induction motors. The rotor mechanical speed and the stator currents/voltages are assumed to be measured. A particular non-minimal state representation of the machine electrical model is derived and exploited to build the adaptive observer, based on a series–parallel architecture. Lyapunov design is used to develop the adaptation law of the proposed solution. Both simulation results and experimental tests confirm the good performances of the technique.
ISSN:0967-0661
1873-6939
DOI:10.1016/j.conengprac.2004.02.008