Effects of small delays on stability of singularly perturbed systems

被引:149
作者
Fridman, E [1 ]
机构
[1] Tel Aviv Univ, Dept Elect Engn, IL-69978 Tel Aviv, Israel
关键词
time-delays; singular perturbations; LMI; stability;
D O I
10.1016/S0005-1098(01)00265-5
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A small delay in the feedback loop of a singularly perturbed system may destabilize it; however, without the delay, it is stable for all small enough values of a singular perturbation parameter e. Sufficient and necessary conditions for preserving stability, for all small enough values of delay and c, are obtained in two cases: in the case of delay proportional to e and in the case of independent delay and B. In the second case, the sufficient conditions are given in terms of an LMI. A delay-dependent LMI criterion for the stability of singularly perturbed differential-difference systems is derived. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:897 / 902
页数:6
相关论文
共 19 条
[1]   Delay-dependent robust H∞ control of uncertain linear state-delayed systems [J].
de Souza, CE ;
Li, X .
AUTOMATICA, 1999, 35 (07) :1313-1321
[2]  
Elsgolts L. E., 1973, MATH SCI ENG, V105
[3]   H∞-state-feedback control of linear systems with small state delay [J].
Fridman, E ;
Shaked, U .
SYSTEMS & CONTROL LETTERS, 1998, 33 (03) :141-150
[4]  
Fridman E, 1996, Z ANGEW MATH MECH, V76, P201
[5]  
FRIDMAN E, 2001, UNPUB J MATH ANAL AP
[6]   H∞ control of linear singularly perturbed systems with small state delay [J].
Glizer, VY ;
Fridman, E .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2000, 250 (01) :49-85
[7]  
HALE J, 1999, WS528 VRIJE U AMSTER
[8]  
Hale J. K., 1993, INTRO FUNCTIONAL DIF, DOI 10.1007/978-1-4612-4342-7
[9]   CRITICAL CASES FOR NEUTRAL FUNCTIONAL DIFFERENTIAL EQUATIONS [J].
HALE, JK .
JOURNAL OF DIFFERENTIAL EQUATIONS, 1971, 10 (01) :59-&
[10]   STABLE CENTER-STABLE CENTER CENTER-UNSTABLE UNSTABLE MANIFOLDS [J].
KELLEY, A .
JOURNAL OF DIFFERENTIAL EQUATIONS, 1967, 3 (04) :546-&