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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2011-09-14
Influence of Constant Values and Motor Parameters Deviations on the Performance of the Adaptive Slidingmode Observer in a Sensorless Induction Motor Drive
By
Paulo José da Costa Branco,

    Prof. Paulo José da Costa Branco

    DEEC - AC Energy

    Univ of Lisbon

    Portugal

    Homepage

João Ferraz

    Dr. João Ferraz

    Technical University of Lisbon, Instituto Superior Técnico (IST)

    Portugal

    Homepage

Progress In Electromagnetics Research B, Vol. 34, 225-245, 2011
doi:10.2528/PIERB11081608 | Google Scholar

Abstract
The adaptive sliding-mode observer has been widely used to estimate the rotor flux and rotor speed in inverter-fed sensorless induction motor drives. However, the technique requires setting a priori the sliding-mode observer constants and also knowledge of the induction motor parameters. This particular aspect can cause significant errors in the estimation of the rotor speed used in sensorless control schemes. Changes in the induction machine parameters due to temperature or different saturation levels will affect the dynamic operation of the observer despite its adaptive nature. In this context, a sensitivity study of the adaptive sliding-mode observer is presented and discussed in this paper. Various experiments are performed on a sensorless indirect vector-controlled induction motor drive under a variety of conditions to verify the observer robustness.
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Citation
Paulo José da Costa Branco, and João Ferraz, "Influence of Constant Values and Motor Parameters Deviations on the Performance of the Adaptive Slidingmode Observer in a Sensorless Induction Motor Drive," Progress In Electromagnetics Research B, Vol. 34, 225-245, 2011.
doi:10.2528/PIERB11081608
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