The conventional sliding-mode control (SMC) technique requires that the perturbation upperbounds are known a priori to achieve a robust control process. This requirement creates some difficulties, at the least causing the controller to be over-conservative. A recently introduced sliding mode control with perturbation estimation (SMCPE) philosophy removes this condition and replaces it with a continuous perturbation estimation process. It is shown that, for precise state measurements and high-speed control-loop closures, SMCPE manifests much smaller tracking errors than those of SMC. So far nonlinear systems in canonical form have been studied, and in the present paper the domain of application of SMCPE is extended to a more general class. For this extension, an I/O linearisation technique is utilised first, and then the SMCPE steps are followed for an output tracking control. Simulation results prove the strength of the technique for a satellite attitude control problem.


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    Title :

    Satellite attitude control via sliding mode with perturbation estimation


    Additional title:

    Satellitenlageregelung über Sliding-Mode mit Störungsschätzung


    Contributors:
    Elmali, H. (author) / Olgac, N. (author)

    Published in:

    Publication date :

    1996


    Size :

    7 Seiten, 9 Bilder, 12 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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