Observer Based Sliding Mode Attitude Control: Theoretical and Experimental Results

Autor: U. Jørgensen, J.T. Gravdahl
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Modeling, Identification and Control, Vol 32, Iss 3, Pp 113-121 (2011)
Druh dokumentu: article
ISSN: 0332-7353
1890-1328
DOI: 10.4173/mic.2011.3.3
Popis: In this paper we present the design of a sliding mode controller for attitude control of spacecraft actuated by three orthogonal reaction wheels. The equilibrium of the closed loop system is proved to be asymptotically stable in the sense of Lyapunov. Due to cases where spacecraft do not have angular velocity measurements, an estimator for the generalized velocity is derived and asymptotic stability is proven for the observer. The approach is tested on an experimental platform with a sphere shaped Autonomous Underwater Vehicle SATellite: AUVSAT, developed at the Norwegian University of Science and Technology.
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