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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2002, Vol. 3 Issue (4): 426-430    DOI: 10.1631/jzus.2002.0426
Industrial Control Technology     
Sliding mode identifier for parameter uncertain nonlinear dynamic systems with nonlinear input
ZHANG Ke-qin, ZHUANG Kai-yu, SU Hong-ye, CHU Jian, GAO Hong
National Laboratory of Industrial Control Technology, Institute of Advanced Process Control, Zhejiang University, Hangzhou 310027, China; State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China
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Abstract  This paper presents a sliding mode (SM) based identifier to deal with the parameter identification problem for a class of parameter uncertain nonlinear dynamic systems with input nonlinearity. A sliding mode controller (SMC) is used to ensure the global reaching condition of the sliding mode for the nonlinear system; an identifier is designed to identify the uncertain parameter of the nonlinear system. A numerical example is studied to show the feasibility of the SM controller and the asymptotical convergence of the identifier.

Key words： Nonlinear system      Sliding mode      Identifier      Input nonlinearity     
Received: 16 June 2001     
CLC:  TP273  
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ZHANG Ke-qin
ZHUANG Kai-yu
SU Hong-ye
CHU Jian
GAO Hong
Cite this article:

ZHANG Ke-qin, ZHUANG Kai-yu, SU Hong-ye, CHU Jian, GAO Hong. Sliding mode identifier for parameter uncertain nonlinear dynamic systems with nonlinear input. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2002, 3(4): 426-430.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2002.0426     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2002/V3/I4/426

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