Adaptive fuzzy control for a class of nonlinear time-varying delay systems

Author

Zhang, Tianping ; Wang, Qin ; Wen, Hui ; Yang, Yuequan

Author_Institution

Dept. of Autom., Yangzhou Univ., Yangzhou

fYear

2008

fDate

25-27 June 2008

Firstpage

887

Lastpage

891

Abstract

The adaptive fuzzy control problem is considered for a class of uncertain SISO nonlinear time-varying delay systems in a Brunovsky form. The upper bound of the unknown time-varying delay term is assumed to be in the form of nonlinear functions with unknown coefficients. An adaptive fuzzy controller is designed by utilizing the integral-type Lyapunov function and constructing a continuous function. It is shown that the closed-loop control system is semi-globally uniformly ultimately bounded.

Keywords

Lyapunov methods; adaptive control; closed loop systems; delays; fuzzy control; nonlinear control systems; time-varying systems; uncertain systems; Brunovsky form; adaptive fuzzy control; closed-loop control system; integral-type Lyapunov function; uncertain SISO nonlinear time-varying delay system; Adaptive control; Control systems; Delay effects; Delay systems; Fuzzy control; Nonlinear control systems; Nonlinear systems; Programmable control; Time varying systems; Upper bound; Adaptive control; fuzzy systems; nonlinear systems; time-varying delays;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on

Conference_Location

Chongqing

Print_ISBN

978-1-4244-2113-8

Electronic_ISBN

978-1-4244-2114-5

Type

conf

DOI

10.1109/WCICA.2008.4594442

Filename

4594442