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This paper presents an improved result on H∞ state estimation for static neural networks with a time-varying delay. First, a novel Lyapunov-Krasovskii functional (LKF) with several augmented terms is constructed. Then, a relaxed integral inequality is employed to make a tight estimation for single integral terms with time-varying delay in the derivative of the LKF. As a result, a delay-dependent criterion...
This paper concerns the stability problem of singular systems with time-varying delay. According to different delay-partition intervals, an augmented Lyapunov-Krasovskii functional with delay cross terms is constructed. Based on it, using the relaxed integral inequality technique is to obtain a less conservative stability criterion. As a result, two numerical examples are provided to demonstrate the...
Wide Area Measurement System (WAMS) provides new control approaches to maintain power system security, but it inevitably brings time delay which may be the one of unstable reasons in power system. Conventional steady state stability analysis, based on linear control theory and Eigenvalue calculation method, is not fit for WAMS assisted power system because of neglected influence of time delay. By...
This paper focuses on the asymptotic stability and the state feedback control for T-S fuzzy systems with a time-varying delay by employing an improved free-weighting matrix approach. By taking the relationship among the time-varying delay, its upper bound and their difference into account, a new less conservative delay-dependent stability criteria are obtained without ignoring any useful terms in...
This paper investigates the controller design problem for networked control systems (NCSs). By considering the relationship between the network-reduced delay and its upper bound, an improved stability criterion for networked closed-loop system is proposed without ignoring any terms in the derivative of Lyapunov-Krasovskii functional. As a result, a state feedback controller design method is established...
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