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		Weihua GUI,Biyu LIU,Zhaohui TANG.[en_title][J].Control Theory and Technology,2006,4(2):201~206.[Copy]

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WeihuaGUI,BiyuLIU,ZhaohuiTANG
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Received:August 18, 2005Revised:December 12, 2005

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A delay-dependent passivity criterion of linear neutral delay systems

Weihua GUI, Biyu LIU, Zhaohui TANG

(School of Information Science and Engineering, Central South University, Changsha Hunan 410083, China)

Abstract:

The problem of delay-dependent stability and passivity for linear neutral systems is discussed. By constructing a novel type Lyapunov-krasovskii functional, a new delay-dependent passivity criterion is presented in terms of linear matrix inequalities (LMIs). Model transformation, bounding for cross terms and selecting free weighting matrices [12~14] are not required in the arguments. Numerical examples show that the proposed criteria are available and less conservative than existing results.

Key words: Neutral delay systems Delay-dependent criteria Linear matrix inequalities (LMIs) Lyapunov-krasovskii functional