A New Relaxed Lyapunov-Krasovskii Functional for Stability Analysis of Time-Varying Delay Systems

In this paper, the stability analysis problem of time-varying delay systems is studied. Based on recent research on Lyapunov-Krasovskii functionals (LKFs), relaxed conditions have been found to weaken some matrices in terms of LKFs, which means that some integral terms cannot be strictly positive de...

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Main Authors: Liming Ding, Dajiang He, Xianwu Mi, Wei Shu, Fang Liao, Linwen Shao
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9541158/
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author Liming Ding
Dajiang He
Xianwu Mi
Wei Shu
Fang Liao
Linwen Shao
author_facet Liming Ding
Dajiang He
Xianwu Mi
Wei Shu
Fang Liao
Linwen Shao
author_sort Liming Ding
collection DOAJ
description In this paper, the stability analysis problem of time-varying delay systems is studied. Based on recent research on Lyapunov-Krasovskii functionals (LKFs), relaxed conditions have been found to weaken some matrices in terms of LKFs, which means that some integral terms cannot be strictly positive definite. Therefore, motivate by this consideration, a new relaxed condition is constructed to weaken some matrices in constructed LKF. Then, for the sake of obtaining more information of time delays, dynamic delay interval (DDI) method was introduced to address the double integral terms with time-varying delay. Furthermore, some recent technologies are employed to process derivatives of LKF. As a consequence, a less conservative result is obtained. The examples given by previous papers are used to demonstrate the superiority of our work.
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spelling doaj.art-c509112014a04292b784c4e0c5c9b1e22022-12-21T20:13:21ZengIEEEIEEE Access2169-35362021-01-01913056213056910.1109/ACCESS.2021.31140019541158A New Relaxed Lyapunov-Krasovskii Functional for Stability Analysis of Time-Varying Delay SystemsLiming Ding0https://orcid.org/0000-0002-0928-6848Dajiang He1Xianwu Mi2Wei Shu3Fang Liao4Linwen Shao5College of Electrical and Information Engineering, Huaihua University, Huaihua, ChinaCollege of Electrical and Information Engineering, Huaihua University, Huaihua, ChinaCollege of Electrical and Information Engineering, Huaihua University, Huaihua, ChinaCollege of Electrical and Information Engineering, Huaihua University, Huaihua, ChinaCollege of Electrical and Information Engineering, Huaihua University, Huaihua, ChinaCollege of Electrical and Information Engineering, Huaihua University, Huaihua, ChinaIn this paper, the stability analysis problem of time-varying delay systems is studied. Based on recent research on Lyapunov-Krasovskii functionals (LKFs), relaxed conditions have been found to weaken some matrices in terms of LKFs, which means that some integral terms cannot be strictly positive definite. Therefore, motivate by this consideration, a new relaxed condition is constructed to weaken some matrices in constructed LKF. Then, for the sake of obtaining more information of time delays, dynamic delay interval (DDI) method was introduced to address the double integral terms with time-varying delay. Furthermore, some recent technologies are employed to process derivatives of LKF. As a consequence, a less conservative result is obtained. The examples given by previous papers are used to demonstrate the superiority of our work.https://ieeexplore.ieee.org/document/9541158/Relaxed conditionLyapunov-Krasovskii functional (LKF)stability analysistime-varying delay systems
spellingShingle Liming Ding
Dajiang He
Xianwu Mi
Wei Shu
Fang Liao
Linwen Shao
A New Relaxed Lyapunov-Krasovskii Functional for Stability Analysis of Time-Varying Delay Systems
IEEE Access
Relaxed condition
Lyapunov-Krasovskii functional (LKF)
stability analysis
time-varying delay systems
title A New Relaxed Lyapunov-Krasovskii Functional for Stability Analysis of Time-Varying Delay Systems
title_full A New Relaxed Lyapunov-Krasovskii Functional for Stability Analysis of Time-Varying Delay Systems
title_fullStr A New Relaxed Lyapunov-Krasovskii Functional for Stability Analysis of Time-Varying Delay Systems
title_full_unstemmed A New Relaxed Lyapunov-Krasovskii Functional for Stability Analysis of Time-Varying Delay Systems
title_short A New Relaxed Lyapunov-Krasovskii Functional for Stability Analysis of Time-Varying Delay Systems
title_sort new relaxed lyapunov krasovskii functional for stability analysis of time varying delay systems
topic Relaxed condition
Lyapunov-Krasovskii functional (LKF)
stability analysis
time-varying delay systems
url https://ieeexplore.ieee.org/document/9541158/
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