The authors propose a simple and effective fault tolerant control method for satellites with four reaction wheels. The proposed method is based on dynamic inversion and time-delay control theory. Faults of reaction wheels are modeled as additive and multiplicative unknown dynamics, which are estimated by using one-step previous state information and canceled out by the estimated values. Therefore, this method can accommodate faults rapidly without any explicit reconfiguration. Numerical simulations demonstrate the performance of the proposed method by comparing with a conventional proportional-derivative control.


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    Title :

    Fault tolerant control for satellites with four reaction wheels


    Additional title:

    Fehlertolerante Regelung für Satelliten mit vier Reaktionsrädern


    Contributors:

    Published in:

    Control Engineering Practice ; 16 , 10 ; 1250-1258


    Publication date :

    2008


    Size :

    9 Seiten




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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