Adaptive sliding-mode observer for speed-sensorless control of induction motors

This paper presents an adaptive sliding-mode observer for the speed-sensorless field-oriented control of induction motors. The observer detects the rotor flux components in the two-phase stationary reference frame by the motor electrical equations. The motor speed is estimated by an additional relat...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2000-09, Vol.36 (5), p.1380-1387
Main Authors: Tursini, M., Petrella, R., Parasiliti, F.
Format: Article
Language:English
Subjects:
Adaptive control
Algorithm design and analysis
Digital signal processors
Equations
Induction motors
Lyapunov method
Programmable control
Rotors
Signal processing algorithms
Sliding mode control
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Summary:This paper presents an adaptive sliding-mode observer for the speed-sensorless field-oriented control of induction motors. The observer detects the rotor flux components in the two-phase stationary reference frame by the motor electrical equations. The motor speed is estimated by an additional relation obtained by a Lyapunov function. The analytical development of the sliding observer and the speed estimation algorithm is fully explained. Experimental results are presented, based on a TMS320F240 digital signal processor controller implementation. The system performance with different observer gains and the influence of the motor parameters deviations are shown and discussed.
ISSN:0093-9994
1939-9367
DOI:10.1109/28.871287