Title :
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
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;
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
DOI :
10.1109/WCICA.2008.4594442
