In order to apply the sliding mode control to a remotely operated vehicle (ROV), prior knowledge of exact bounds for parameter uncertainties and external disturbances is a prerequisite. However, these bounds may not be easily obtained because of the complexity and unpredictability of the structure of uncertainties in the dynamics of ROVs. In order to overcome such a difficulty in the control of ROVs, we propose a new robust adaptive sliding mode for dynamic positioning and trajectory tracking of ROVs. A passive arm is used as a position sensor in the region close to an underwater structure. By applying this adaptive sliding mode controller, prior knowledge is not required because the controller is able to estimate the bounds of uncertainties and external disturbances. The stability of the control algorithm can be easily verified by using Lyapunov theory. The effectiveness of this design control method is demonstrated by means of a underwater vehicle at the Institute of Mechanical and Ocean Engineering at Hamburg University of Technology


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    Title :

    A robust adaptive sliding mode controller for remotely operated vehicles


    Additional title:

    Robuster adaptiver Sliding-Mode-Regler für ferngelenkte Fahrzeuge


    Contributors:

    Published in:

    Technische Mechanik ; 28 , 3/4 ; 185-193


    Publication date :

    2008


    Size :

    9 Seiten, 6 Bilder, 18 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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