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In this paper, fault detection for networked control system with data packet dropout between sensor and controller is discussed. A fault observer structure is presented, in which the previous system output transmitted successfully is used for feedback of the observer when data packet dropout happens. Suppose continuous data packet dropout is finite, the dynamics of the observer error can be modeled...
In this parer, a sliding mode control algorithm based on Takagi-Sugeno (T-S) fuzzy model for a class of nonlinear systems is proposed. The nonlinear system is approximately represent by a T-S fuzzy model with mismatched parameter uncertainties and time-varying delay. An asymptotically stable sliding surface is designed by means of linear matrix inequality (LMI). The sliding surface can compensate...
This paper introduces a simple technique for designing a static Hinfin loop shaping controller. Sufficient conditions are established in Linear matrix inequality (LMI) form for the existence. The order of controller is equal to sum of the orders of the weighing functions. The genetic algorithms (GA) which guarantee the stability, performance in terms of Hinfin specifications, are adopted to optimize...
This paper studies the passivity problem for a class of uncertain stochastic recurrent neural networks (SRNNs) with interval time-varying delay. Based on Lyapunov-Krasovskii functional and stochastic analysis approach, a delay-dependent robust passivity criteria is obtained in the linear matrix inequality (LMI) format. The effectiveness of the proposed method is demonstrated by a numerical example.
This paper discusses the problems of synchronization and pinning control for a kind of general time-delay complex dynamical networks. We obtain less conservative criterions for this kind of complex dynamical networks with time-delay. Pinning control strategies are respectively designed to make these complex dynamical networks synchronized. Furthermore, the problems of designing controllers are converted...
This paper is concerned with the finite-time control problem of continuous-time linear system that posses randomly jumping parameters which can be described by finite-state Markov processes. The main results provided are sufficient conditions for mean square finite-time stability (MSFTS) and mean square finite-time boundedness (MSFTB) via state feedback. Such sufficient conditions can be turned into...
The delay-dependent H-infinity guaranteed cost control problem for linear systems with state delay is considered. A delay-dependent condition for the existence of H-infinity guaranteed cost state feedback controller is presented in terms of linear matrix inequality such that the resulting closed-loop system is asymptotically stable and guarantees H-infinity performance index. It can be proved that...
Motion control of high rise elevator is a typical multi-objective control and nonlinear control problem. To effectively solve the multi-objective control and nonlinear control problem, an linear matrix inequality (LMI)-based and Takagi-Sugeno(T-S) model-based fuzzy approach is employed. First, the generalized T-S type fuzzy model for the system is constructed, and then system global state controller...
The delay-dependent variable structure control problem of a class of uncertain neutral delay systems is considered. By selecting a sliding surface depending on the current state and delayed state, the paper gives a delay-dependent sufficient condition in terms of linear matrix inequalities (LMIs) such that the closed-loop system is guaranteed to be asymptotically stable. According to reaching condition,...
This paper is concerned with the robust control problem of the permanent magnet synchronous motor (PMSM) chaotic systems with uncertain parameters. Firstly, the T-S fuzzy models with several fuzzy IF-THEN rules are employed to represent the uncertain chaotic PMSM plant. Based on these the T-S fuzzy models, a simple fuzzy controller is designed via PDC technique to realize the stabilization of chaos...
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