Stability of interval time-varying delay systems: A nonuniform delay partitioning approach

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Bibliographic Details
Title: Stability of interval time-varying delay systems: A nonuniform delay partitioning approach
Authors: Parlakçi, M.N.A.
Publisher Information: IFAC Secretariat
Publication Year: 2009
Collection: Istanbul Bilgi University: Open Access
Subject Terms: Cone Complementary Method, Delay Partitioning, Interval Time-Varying Delay, Linear Matrix İnequality, Time Delay Systems, Convex Optimization, Delay Control Systems, Linear Matrix İnequalities, Lyapunov Functions, Numerical Methods, System Stability, Time Delay, Time Varying Control Systems, Complementary Methods, Conservatism Reductions, Convex Optimization Algorithms, Delay Dependent Stability Criterion, Interval Time-Varying Delays, Lyapunov-Krasovskii Functionals, Time-Delay Systems, Stability Criteria
Description: This paper investigates the conservatism reduction of Lyapunov-Krasovskii based conditions for the stability of a class of interval time-varying delay systems. The main idea is based on the nonuniform decomposition of the integral terms of the Lyapunov-Krasovskii functional. The delay interval is decomposed into a finite number of nonuniform segments with some scaling parameters. Both differentiable delay case and nondifferentiable delay case or unknown delay derivative bound case are taken into consideration. Sufficient delay-dependent stability criteria are derived in terms of matrix inequalities. Introducing a cone complementary problem, a convex optimization algorithm is obtained so that a suboptimal maximum allowable delay upper bound is achieved. Two numerical examples with case studies are given to demonstrate the effectiveness of the proposed method with respect to some existing ones from the literature. Copyright © IFAC 2009.
Document Type: conference object
Language: English
ISBN: 978-3-902661-67-8
3-902661-67-4
Relation: IFAC Proceedings Volumes (IFAC-PapersOnline); Konferans Öğesi - Uluslararası - Kurum Öğretim Elemanı; https://hdl.handle.net/11411/6526; 100; PART 1; N/A; 96
DOI: 10.3182/20090901-3-ro-4009.00013
Availability: https://hdl.handle.net/11411/6526
https://doi.org/10.3182/20090901-3-ro-4009.00013
Rights: info:eu-repo/semantics/openAccess
Accession Number: edsbas.C364B8BA
Database: BASE
Description
Abstract:This paper investigates the conservatism reduction of Lyapunov-Krasovskii based conditions for the stability of a class of interval time-varying delay systems. The main idea is based on the nonuniform decomposition of the integral terms of the Lyapunov-Krasovskii functional. The delay interval is decomposed into a finite number of nonuniform segments with some scaling parameters. Both differentiable delay case and nondifferentiable delay case or unknown delay derivative bound case are taken into consideration. Sufficient delay-dependent stability criteria are derived in terms of matrix inequalities. Introducing a cone complementary problem, a convex optimization algorithm is obtained so that a suboptimal maximum allowable delay upper bound is achieved. Two numerical examples with case studies are given to demonstrate the effectiveness of the proposed method with respect to some existing ones from the literature. Copyright © IFAC 2009.
ISBN:9783902661678
3902661674
DOI:10.3182/20090901-3-ro-4009.00013