A mixed H2/Hinfinity tracking control design method for uncertain spacecraft systems with guaranteed control performance is examined. A mixed H2/Hinfinity controller incorporating a cerebellar model articulation controller (CMAC) learning method and sliding-mode control action is developed in uncertain spacecraft systems under plant uncertainties and external disturbances. The CMAC control system is used to adaptively estimate the non-linear uncertainties, yielding a controller that can tolerate a wider range of uncertainties. The sliding-mode control action is included to eliminate the effect of approximation error via CMAC control system approximation. The sufficient condition is developed for mixed H2/Hinfinity performance in terms of linear matrix inequality formulations. The proposed method is simple and the PID parameters can be obtained systematically. Simulation results indicate that the mixed H2/Hinfinity performance can be achieved using the proposed methods.
Mixed H2/Hinfinity PID tracking control design for uncertain spacecraft systems using a cerebellar model articulation controller
IEE Proceedings - Control Theory and Applications ; 153 , 1 ; 1-13
2006
13 Seiten, 26 Quellen
Article (Journal)
English
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