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控制理论与应用 2006
Delay-dependent stability and stabilization criteria of networked control systems with multiple time-delays
Keywords: Networked control systems(NCSs),Delay-dependent stability,Generalized Lyapunov matrix equation,Linear matrix inequalities (LMIs),Networked-induced delay,Maximum allowable delay bound(MADB) Abstract: This paper deals with the problem of delay-dependent stability and stabilization for networked control systems(NCSs)with multiple time-delays. In view of multi-input and multi-output(MIMO) NCSs with many independent sensors and actuators, a continuous time model with distributed time-delays is proposed. Utilizing the Lyapunov stability theory combined with linear matrix inequalities(LMIs) techniques, some new delay-dependent stability criteria for NCSs in terms of generalized Lyapunov matrix equation and LMIs are derived. Stabilizing controller via state feedback is formulated by solving a set of LMIs. Compared with the reported methods, the proposed methods give a less conservative delay bound and more general results. Numerical example and simulation show that the methods are less conservative and more effective.
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