This work introduces an adaptive observation system and a robust control system for achieving the favorable decoupling control and high-precision speed tracking property of an induction motor (IM) drive system. First, an adaptive observation system with an inverse rotor time-constant observer is derived on the basis of model reference adaptive system (MRAS) theory to preserve the decoupling control characteristic of an indirect field-oriented IM drive. The adaptive observation system is implemented using a digital signal processor (DSP) with a high sampling rate to make it possible to achieve good dynamics. Moreover, a robust control system is developed based on the principle of computed torque control. In the robust control system, a grey uncertainty predictor is utilized to adapt the lumped uncertainty on line to relax the requirement of the lumped uncertainty in the design of a computed torque speed controller. In addition, the effectiveness of the proposed observation and control systems is verified by simulated and experimental results.


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    Titel :

    Decoupling and tracking control of induction motor drive


    Beteiligte:
    Rong-Jong Wai, (Autor:in) / Li-Jung Chang, (Autor:in)


    Erscheinungsdatum :

    2002-10-01


    Format / Umfang :

    592381 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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