Journal of Control Theory and Applications
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Decoupled Wiener state fuser for descriptor systems
Journal of Control Theory and Applications - Tập 6 - Trang 365-371 - 2008
By the modem time series analysis method, based on the autoregressive moving average (ARMA) innovation models and white noise estimation theory, using the optimal fusion rule weighted by diagonal matrices, a distributed descriptor Wiener state fuser is presented by weighting the local Wiener state estimators for the linear discrete stochastic descriptor systems with multisensor. It realizes a deco......
An adaptive fuzzy design for fault-tolerant control of MIMO nonlinear uncertain systems
Journal of Control Theory and Applications - Tập 9 - Trang 244-250 - 2011
This paper presents a novel control method for accommodating actuator faults in a class of multiple-input multiple-output (MIMO) nonlinear uncertain systems. The designed control scheme can tolerate both the time-varying lock-in-place and loss of effectiveness actuator faults. In each subsystem of the considered MIMO system, the controller is obtained from a backstepping procedure; an adaptive fuz......
Bifurcations and chaos in indirect field-oriented control of induction motors
Journal of Control Theory and Applications - Tập 2 - Trang 353-357 - 2004
Stability of indirect field-oriented control (IFOC) of induction motor drives is greatly influenced by estimated value of rotor time constant. By choosing estimation error of rotor time constant as bifurcation parameter, the conditions of generating Hopf bifurcation in IFOC drives are analyzed. Dynamic responses and Lyapunov exponents show that chaos and limit cycles will arise for some ranges of ......
Optimal source rate control for adapting VBR video over CBR channels
Journal of Control Theory and Applications - Tập 4 - Trang 111-113 - 2006
In this paper we discuss the source rate control problem of adapting variable bit-rate (VBR) compressed video over constant bit-rate (CBR) channels. Firstly we formulate it as an optimal control problem of a discrete linear system with state and control constraints. Then we apply the discrete maximum principle to get the optimal solution. Experimental results are given in the end. Compared with tr......
Performance and robustness analysis of a fuzzy-immune flow controller in ATM networks with time-varying multiple time-delays
Journal of Control Theory and Applications - - 2008
Particle swarm optimization for time-optimal control design
Journal of Control Theory and Applications - Tập 10 - Trang 365-370 - 2012
In this paper, a particle swarm optimization (PSO) based method is proposed to obtain the time-optimal bang-bang control law for both linear and nonlinear systems. By introducing a penalty function, the method can be modified to deal with systems with constraints. Compared with existing computational methods, the proposed method can be implemented in a straightforward manner. The convergent soluti......
Delay dependent stability criteria for recurrent neural networks with time varying delays
Journal of Control Theory and Applications - Tập 7 - Trang 9-13 - 2009
This paper aims to present some delay-dependent global asymptotic stability criteria for recurrent neural networks with time varying delays. The obtained results have no restriction on the magnitude of derivative of time varying delay, and can be easily checked due to the form of linear matrix inequality. By comparison with some previous results, the obtained results are less conservative. A numer......
Adaptive coordinated control of engine speed and battery charging voltage
Journal of Control Theory and Applications - Tập 6 - Trang 69-73 - 2008
In this paper, the control problem of auxiliary power unit (APU) for hybrid electric vehicles is investigated. An adaptive controller is provided to achieve the coordinated control between the engine speed and the battery charging voltage. The proposed adaptive coordinated control laws for the throttle angle of the engine and the voltage of the power-converter can guarantee not only the asymptotic......
Identification of Hammerstein systems with asymmetric dead-zone nonlinearities using canonical parameterized model
Journal of Control Theory and Applications - Tập 10 - Trang 511-516 - 2012
A non-iterative identification method with parameterization of the unknown dead-zone is proposed for Hammerstein systems in presence of asymmetric dead-zone nonlinearities. The canonical parameterized model which is a single expression without segmentation is utilized to describe the dead-zone, based on which a universal-type parametric model can be established to approximate the entire system. Th......
Adaptive sampling immune algorithm solving joint chance-constrained programming
Journal of Control Theory and Applications - Tập 11 - Trang 237-246 - 2013
This work investigates one immune optimization algorithm in uncertain environments, solving linear or nonlinear joint chance-constrained programming with a general distribution of the random vector. In this algorithm, an a priori lower bound estimate is developed to deal with one joint chance constraint, while the scheme of adaptive sampling is designed to make empirically better antibodies in the......
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