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		Qing ZHU1,Shumin FEI,Tao LI,Tianping ZHANG.[en_title][J].Control Theory and Technology,2008,6(3):287~292.[Copy]

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QingZHU1,ShuminFEI,TaoLI,TianpingZHANG
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Received:February 20, 2007Revised:June 16, 2007

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Robust adaptive control for uncertain systems with discrete and distributed delays

Qing ZHU1, Shumin FEI, Tao LI, Tianping ZHANG

(Key Laboratory of Measurement and Control of Complex Systems of Engineering, School of Automation, Southeast University, Nanjing Jiangsu 210096, China; College of Information Engineering, Yangzhou University, Yangzhou Jiangsu 225009, China)

Abstract:

In this paper, a robust adaptive control scheme is proposed for the stabilization of uncertain linear systems with discrete and distributed delays and bounded perturbations. The uncertainty is assumed to be an unknown continuous function with norm-bounded restriction. The perturbation is sector-bounded. Combining with the liner matrix inequality method, neural networks and adaptive control, the control scheme ensures the exponential stability of the closed-loop system for any admissible uncertainty.

Key words: Time-delay systems Robust control Adaptive control Neural networks Global exponential stability Linear matrix inequalities