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作者:Geromel, Jose C.
作者单位:Universidade Estadual de Campinas
摘要:This article focuses on model predictive control (MPC) design in the context of sampled-data control systems with full-state measurements. It is shown that recent results on this area can be successfully generalized to cope with sampled-data MPC. The open-loop plant is subjected to polytopic parameter uncertainty and at sampling times, a controlled output variable satisfies a set of convex constraints. A guaranteed H-2 performance index with infinity horizon is minimized such that the feedback...
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作者:Gundes, A. N.; Ozbay, Hitay
作者单位:University of California System; University of California Davis; Ihsan Dogramaci Bilkent University
摘要:A special class of retarded and neutral time delay systems is considered. These are plants with internal delayed feedback, and they may have finitely many or infinitely many unstable poles. Stabilizing controllers are obtained from a particular interpolation. A parametrization of all stabilizing integral-action controllers is obtained. Examples are given to illustrate this simple design procedure and its robustness properties for various uncertainties.
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作者:Humaloja, Jukka-Pekka; Koivumaki, Janne; Paunonen, Lassi; Mattila, Jouni
作者单位:Tampere University; Tampere University
摘要:In this article, we incorporate velocity observer design into the virtual decomposition control (VDC) strategy of an n-degree of freedom (N-DoF) open-chain robotic manipulator. Descending from the VDC strategy, the proposed design is based on decomposing the n-DoF manipulator into subsystems, i.e., rigid links and joints, for which the decentralized controller-observer implementation can be done locally. Similar to VDC, the combined controller-observer design is passivity based, and we show th...
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作者:Nikiforov, Vladimir; Gerasimov, Dmitry; Pashenko, Artem
作者单位:ITMO University
摘要:This article addresses the problem of transient performance improvement in adaptive backstepping design. A new modular design with a high-order tuner providing complete compensation of the adjustable parameters' time variations is proposed. The L-infinity performance bound for the state error is derived and verifies a better transient performance of the proposed controller compared to the known ones designed based on tuning functions and modular approach with first-order tuners.
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作者:Yan, Yuyue; Hayakawa, Tomohisa
作者单位:Institute of Science Tokyo; Tokyo Institute of Technology
摘要:The stability property of the loss-aversion-based noncooperative switched systems with quadratic payoffs is investigated. In this system, each agent adopts the lower sensitivity parameter in the myopic pseudo-gradient dynamics for the case of losing utility than gaining utility, and both system dynamics and switching events (conditions) are depending on agents' payoff functions. Sufficient conditions under which agents' state converges toward the Nash equilibrium are derived in accordance with...
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作者:Granzotto, Mathieu; Postoyan, Romain; Busoniu, Lucian; Nesic, Dragan; Daafouz, Jamal
作者单位:Universite de Lorraine; Centre National de la Recherche Scientifique (CNRS); Technical University of Cluj Napoca; University of Melbourne
摘要:Originating in the artificial intelligence literature, optimistic planning (OP) is an algorithm that generates near-optimal control inputs for generic nonlinear discrete-time systems whose input set is finite. This technique is, therefore, relevant for the near-optimal control of nonlinear switched systems for which the switching signal is the control, and no continuous input is present. However, OP exhibits several limitations, which prevent its desired application in a standard control engin...
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作者:Duan, Peihu; Wang, Qishao; Duan, Zhisheng; Chen, Guanrong
作者单位:Peking University; Beihang University; City University of Hong Kong
摘要:This article investigates state estimation for a class of complex networks, in which the dynamics of each node is subject to Gaussian noise, system uncertainties, and nonlinearities. Based on a regularized least-squares approach, the estimation problem is reformulated as an optimization problem, solving for a solution in a distributed way by utilizing a decoupling technique. Then, based on this solution, a class of estimators is designed to handle the system dynamics and constraints. A novel f...
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作者:Taghvaei, Amirhossein; Mehta, Prashant G.
作者单位:University of California System; University of California Irvine; University of Illinois System; University of Illinois Urbana-Champaign
摘要:This article presents an elementary proof of stochastic stability of a discrete-time reversible Markov chain starting from a Foster-Lyapunov drift condition. Besides its relative simplicity, there are two salient features of the proof. 1) It relies entirely on functional-analytic non-probabilistic arguments. 2) It makes explicit the connection between a Foster-Lyapunov function and Poincare inequality. The proof is used to derive an explicit bound for the spectral gap. An extension to the nonr...
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作者:Chen, Bo; Hu, Guoqiang; Ho, Daniel W. C.; Yu, Li
作者单位:Zhejiang University of Technology; Zhejiang University of Technology; Nanyang Technological University; City University of Hong Kong
摘要:This article is concerned with the distributed estimation and control problem for time-varying large-scale interconnected systems (LISs). A novel decoupling strategy with sequential-structure is developed to deal with the interconnected terms in large-scale systems. Then, by using the idea of bounded recursive optimization, the local estimator gain for each subsystem is designed by solving self-relative convex optimization problem that is constructed based on each subsystem's own information a...
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作者:Hu, Cheng; He, Haibo; Jiang, Haijun
作者单位:Xinjiang University; University of Rhode Island
摘要:In biology networks, social networks, mobile robots, and many real networks, spatial factors are crucial to the evolution of networks and individual interactions are not always continuous. In this article, a kind of intermittently coupled spatiotemporal networks (ICSNs) is proposed, where the couplings among nodes are intermittent and the coupling strengths are related to both time and space. By constructing piecewise auxiliary functions and developing a direct error method, a distributed inte...