New results on stability analysis of systems with time-varying delays using a generalized free-matrix-based inequality

New results on stability analysis of systems with time-varying delays using a generalized free-matrix-based inequality
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使用基于广义自由矩阵的不等式对时变时滞系统进行稳定性分析的新结果

DOI:
10.1016/j.jfranklin.2019.03.029
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发表时间:
2019-09
期刊:
Journal of the Franklin Institute
影响因子:
--
通讯作者:
Xiao Shen Ping
Xiao Shen Ping
中科院分区:
其他
文献类型:
--
作者:
Zeng Hong Bing;Liu Xiao Gui;Wang Wei;Xiao Shen Ping

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研究具有区间时变时滞的线性系统的时滞相关稳定性问题。提出了一个广义的自由矩阵不等式,并利用它导出了比贝塞尔-勒让德不等式保守性更小的稳定性条件。针对广义自由矩阵不等式,提出了一种增广Lyapunov-Krasovskii泛函。然后,对Lyapunov-Krasovskii泛函中的某些项进行积分,放宽其正定条件,从而为Lyapunov-Krasovskii泛函提供更准确的下界。因此,提出了一些不太保守的稳定性判据。两个算例说明了该方法的有效性。
This paper addresses the delay-dependent stability problem of linear systems with interval time-varying delays. A generalized free-matrix-based inequality is proposed and employed to derive stability conditions, which are less conservative than the Bessel–Legendre inequality. An augmented Lyapunov–Krasovskii functional is tailored for the generalized free-matrix-based inequality. Then, some items in the Lyapunov–Krasovskii functionals are integrated so as to relax its positive definite condition, which provides a more accurate lower bound for the Lyapunov–Krasovskii functionals. Therefore, some less conservative stability criteria are presented. Two numerical examples illustrate the effectiveness of the method.
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