DocumentCode :
2838543
Title :
H output feedback control for uncertain systems with time-varying delays
Author :
Wang, Yingchun ; Zhang, Huaguang ; Yang, Dongsheng ; Dong, Meng
Author_Institution :
Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China
fYear :
2010
fDate :
26-28 May 2010
Firstpage :
1570
Lastpage :
1575
Abstract :
In this paper a new approach is proposed to design an H output feedback controller for uncertain systems with time-varying delay. By defining a new relaxed Lyapunov parameter matrix and introducing some free-weighting matrices, convex linear matrix inequality (LMI) based sufficient conditions are established to ensure robust and exponential stability and to meet a prescribed H performance level for the resulting closed-loop system. The advantages of the proposed approach are that the Lyapunov parameter matrix is relaxed and the conservatism of results is reduced largely. Moreover, due to the convex LMI form, it can be directly tested and solved the controller parameters by LMI toolbox in Matlab and iterative algorithm is not required. Two examples are given to show the effectiveness and the less conservatism of the results.
Keywords :
H control; Lyapunov matrix equations; asymptotic stability; closed loop systems; delays; feedback; iterative methods; linear matrix inequalities; time-varying systems; uncertain systems; H output feedback control; LMI; Matlab; closed-loop system; convex linear matrix inequality; exponential stability; free-weighting matrices; iterative algorithm; relaxed Lyapunov parameter matrix; robust stability; time-varying delays; uncertain systems; Control systems; Delay systems; Iterative algorithms; Linear matrix inequalities; Output feedback; Robust stability; Sufficient conditions; Testing; Time varying systems; Uncertain systems;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control and Decision Conference (CCDC), 2010 Chinese
Conference_Location :
Xuzhou
Print_ISBN :
978-1-4244-5181-4
Electronic_ISBN :
978-1-4244-5182-1
Type :
conf
DOI :
10.1109/CCDC.2010.5498285
Filename :
5498285
Link To Document :
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