DocumentCode :
1239271
Title :
Further results on adaptive robust control of uncertain time-delay systems
Author :
Xu, S. ; Feng, G.
Author_Institution :
Sch. of Autom., Nanjing Univ. of Sci. & Technol., Nanjing
Volume :
2
Issue :
5
fYear :
2008
fDate :
5/1/2008 12:00:00 AM
Firstpage :
402
Lastpage :
408
Abstract :
The problem of adaptive robust control for uncertain systems with multiple time delays is considered. The parameter uncertainties are assumed to be time-varying norm-bounded, whose bounds are unknown. The objective is to design adaptive robust state-feedback controllers such that the resulting closed-loop system is globally uniformly exponentially convergent to a ball with a certain convergence rate. In terms of a linear matrix inequality, a sufficient condition for the solvability of this problem is presented and the expression of a desired adaptive robust state-feedback controller is given. It is shown that the result obtained improves certain existing ones in the literature.
Keywords :
adaptive control; closed loop systems; delays; linear matrix inequalities; robust control; state feedback; uncertain systems; adaptive robust control; closed loop system; linear matrix inequality; multiple time delays; parameter uncertainties; state feedback controllers; time-varying norm-bounded; uncertain systems;
fLanguage :
English
Journal_Title :
Control Theory & Applications, IET
Publisher :
iet
ISSN :
1751-8644
Type :
jour
DOI :
10.1049/iet-cta:20070221
Filename :
4536591
Link To Document :
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