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Title: Non-fragile positive real control for uncertain linear neutral delay systems
Authors: Xu, S.
Lam, J.
Wang, J.
Yang, G.-H. 
Keywords: Controller fragility
Delay systems
Linear matrix inequality
Neutral systems
Positive real control
Uncertain systems
Issue Date: May-2004
Citation: Xu, S., Lam, J., Wang, J., Yang, G.-H. (2004-05). Non-fragile positive real control for uncertain linear neutral delay systems. Systems and Control Letters 52 (1) : 59-74. ScholarBank@NUS Repository.
Abstract: This paper is concerned with the problem of non-fragile positive real control for uncertain neutral delay systems with time-invariant norm-bounded parameter uncertainty. Time delays are assumed to appear in both the state and the controlled output equations. The state feedback gains are with norm-bounded controller uncertainties. For both the cases with additive and multiplicative controller uncertainties, we address the problem of designing memoryless state feedback controllers such that, for all admissible uncertainties, the resulting closed-loop system is stable and the closed-loop transfer function is extended strictly positive real. Sufficient conditions for the existence of desired controllers are given in terms of linear matrix inequalities (LMIs). When these LMIs are feasible, the expected memoryless state feedback controller can be easily constructed via convex optimization. An illustrative example is given to demonstrate the validity and applicability of the proposed approach. © 2003 Elsevier B.V. All rights reserved.
Source Title: Systems and Control Letters
ISSN: 01676911
DOI: 10.1016/j.sysconle.2003.11.001
Appears in Collections:Staff Publications

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