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Observer-based adaptive control of uncertain time-delay switched systems with stuck actuator faults
Received:September 10,2007  Revised:April 3,2008
Keywords:Observer-based adaptive control  Tuck actuator faults  Delay-independent  Uncertain time-delay switched systems
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Limin WANG, Cheng SHAO Institute of Advanced Control Technology, Dalian University of Technology, Dalian Liaoning 116024, China 
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Abstract:
      This paper concerns the observer-based adaptive control problem of uncertain time-delay switched systems with stuck actuator faults. Under the case where the original controller cannot stabilize the faulty system, multiple adaptive controllers are designed and a suitable switching logic is incorporated to ensure the closed-loop system stability and state tracking. New delay-independent sufficient conditions for asymptotic stability are obtained in terms of linear matrix inequalities based on piecewise Lyapunov stability theory. On the other hand, adaptive laws for on-line updating of some of the controller parameters are also designed to compensate the effect of stuck failures. Finally, simulation results for reference [1] model show that the design is feasible and efficient.
Limin WANG, Cheng SHAO.Observer-based adaptive control of uncertain time-delay switched systems with stuck actuator faults[J].Journal of Control Theory and Applications,2009,7(2):219~223.
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