A mixed H2/Hinfinity tracking control design method for uncertain spacecraft systems with guaranteed control performance is examined. A mixed H2/Hinfinity controller incorporating a cerebellar model articulation controller (CMAC) learning method and sliding-mode control action is developed in uncertain spacecraft systems under plant uncertainties and external disturbances. The CMAC control system is used to adaptively estimate the non-linear uncertainties, yielding a controller that can tolerate a wider range of uncertainties. The sliding-mode control action is included to eliminate the effect of approximation error via CMAC control system approximation. The sufficient condition is developed for mixed H2/Hinfinity performance in terms of linear matrix inequality formulations. The proposed method is simple and the PID parameters can be obtained systematically. Simulation results indicate that the mixed H2/Hinfinity performance can be achieved using the proposed methods.


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    Title :

    Mixed H2/Hinfinity PID tracking control design for uncertain spacecraft systems using a cerebellar model articulation controller


    Contributors:
    Uang, H.J. (author) / Lien, C.C. (author)


    Publication date :

    2006


    Size :

    13 Seiten, 26 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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