Abstract
This paper is concerned with the robust tracking control of an electrically driven free-floating space manipulator with internal parameter uncertainty and external disturbance. An adaptive disturbance-observer-based output feedback control is employed to provide a solution to the control problem, wherein the parameters are tuned online by using fuzzy logic systems to compensate for equivalent disturbance, and the stability condition of the closed-loop system is also derived. The suggested method does not require exact prior knowledge of the system and needs a few parameters to tune. The simulation results of a two-link electrically driven space manipulator show the effectiveness and applicability of the proposed control scheme.
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