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		Yongmei MA,Guanghong YANG,Wei GUAN.[en_title][J].Control Theory and Technology,2009,7(4):454~458.[Copy]

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YongmeiMA,GuanghongYANG,WeiGUAN
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Received:April 29, 2007Revised:July 11, 2008

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Robust stabilization of switched discrete-time systems with actuator saturation

Yongmei MA, Guanghong YANG, Wei GUAN

(College of Science, Yanshan University, Qinhuangdao Hebei 066004, China; College of Information Science and Engineering, Northeastern University, Shenyang Liaoning 110004, China;Key Laboratory of Integrated Automation of Process Industry, Northeastern University, Ministry of Education, Shenyang Liaoning, 110004)

Abstract:

This paper studies the robust stabilization problem of switched discrete-time linear systems subject to actuator saturation. New switched saturation-dependent Lyapunov functions are exploited to design a robust stabilizing state feedback controller that maximizes an estimation of the domain of attraction. The design problem of controller (coefficient matrices) is then reduced to an optimization problem with linear matrix inequality (LMI) constraints. A numerical example is given to show the effectiveness of the proposed method.

Key words: Switched systems Robust stabilization LMI Actuator saturation