Abstract
This paper investigates L 2-gain analysis and anti-windup compensation gains design for a class of discrete-time switched systems with saturating actuators and L 2 bounded disturbances by using the switched Lyapunov function approach. For a given set of anti-windup compensation gains, we firstly give a sufficient condition on tolerable disturbances under which the state trajectory starting from the origin will remain inside a bounded set for the corresponding closed-loop switched system subject to L 2 bounded disturbances. Then, the upper bound on the restricted L 2-gain is obtained over the set of tolerable disturbances. Furthermore, the antiwindup compensation gains aiming to determine the largest disturbance tolerance level and the smallest upper bound of the restricted L 2-gain are presented by solving a convex optimization problem with linear matrix inequality (LMI) constraints. A numerical example is given to illustrate the effectiveness of the proposed design method.
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This work was supported by National Natural Science Foundation of China (Nos. 61174073 and 90816028).
Xin-Quan Zhang received the B. Sc. degree in automation and M. Sc. degree in control theory and engineering from Liaoning Technical University, China in 2003 and 2007, respectively. Also he received the Ph.D. degree in control theory and control engineering from the Northeastern University, Shenyang, China, in 2012. Currently, he joined the School of Information and Control Engineering at Liaoning Shihua University in China.
His research interests include switched systems, robust control and systems control under constraints.
Jun Zhao received the B. Sc. and M. Sc. degrees in mathematics from Liaoning University, China in 1982 and 1984, respectively. He completed his Ph. D. in control theory and applications in 1991 at Northeastern University, China. From 1992 to 1993, he was a postdoctoral fellow at the same university. Since 1994, as a professor, he has been with College of Information Science and Engineering, Northeastern University, China. From 1998 to 1999, he was a senior visiting scholar at the Coordinated Science Laboratory, University of Illinois at Urbana-Champaign, USA. From November 2003 to May 2005, he was a research fellow at Department of Electronic Engineering, City University of Hong Kong. From 2007 to 2010, he was a fellow at School of Engineering, Australian National University.
His research interests include switched systems, nonlinear systems and network synchronization.
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Zhang, XQ., Zhao, J. L 2-gain analysis and anti-windup design of discrete-time switched systems with actuator saturation. Int. J. Autom. Comput. 9, 369–377 (2012). https://doi.org/10.1007/s11633-012-0657-x
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DOI: https://doi.org/10.1007/s11633-012-0657-x