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Research Papers

Robust Output Tracking Control for a Class of Uncertain Switched Nonlinear Systems

[+] Author and Article Information
Xiao X. Dong

e-mail: dongxiaoxiao0331@sina.com

Jun Zhao

e-mail: zhaojun@mail.neu.edu.cn
State Key Laboratory of Synthetical Automation for Process Industries,
Northeastern University,
Shenyang 110819, China

1Corresponding author.

Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received April 26, 2011; final manuscript received October 14, 2012; published online February 21, 2013. Assoc. Editor: Bor-Chin Chang.

J. Dyn. Sys., Meas., Control 135(3), 031001 (Feb 21, 2013) (6 pages) Paper No: DS-11-1128; doi: 10.1115/1.4023069 History: Received April 26, 2011; Revised October 14, 2012

This paper is devoted to the problem of robust output tracking control for uncertain cascade switched nonlinear systems with external disturbances. A sufficient condition for the output tracking problem of switched systems to be solvable is given in terms of the average dwell-time scheme and linear matrix inequalities where no solvability of the output tracking control problem for all subsystems is assumed. The controllers are designed based on a variable structure control method in order to conquer the uncertainties. Simulations illustrate the effectiveness of the proposed robust tracking design method.

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Figures

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Fig. 2

The output error of the switched system for example 1

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Fig. 3

The switching signal for example 1

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Fig. 1

State responses of the switched system for example 1

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Fig. 4

State responses of the switched system for example 2

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Fig. 5

The output error of the switched system for example 2

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Fig. 6

The switching signal for example 2

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