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作者:Basile, Francesco; Cordone, Roberto; Piroddi, Luigi
作者单位:University of Salerno; University of Milan; Polytechnic University of Milan
摘要:A novel framework is introduced for the supervisory control (SC) of timed discrete event systems based on Time Petri nets. The method encompasses both logical (markings to reach or avoid) and temporal specifications (arrival and departure times in specific markings). It relies on the construction of a partial forward reachability graph of the modified state class graph type and the formulation of integer linear programming problems to establish suitable firing time intervals (FTIs) for the con...
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作者:Chen, Guoyuan; Zhu, Gaosheng
作者单位:Zhejiang University of Finance & Economics; Harbin Institute of Technology
摘要:In this article, we propose a symplectic algorithm for the stable manifolds of the Hamilton-Jacobi equations combined with an iterative procedure in [N. Sakamoto and A. J. van der Schaft, Analytical approximation methods for the stabilizing solution of the Hamilton-Jacobi equation, IEEE Trans. Autom. Control, 2008]. Our algorithm includes two key aspects. The first one is to prove a precise estimate for radius of convergence and the errors of local approximate stable manifolds. The second one ...
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作者:Hua, Changsheng; Li, Linlin; Ding, Steven X.
作者单位:University of Duisburg Essen; University of Science & Technology Beijing
摘要:This article is concerned with a fault-tolerant control (FTC) scheme for feedback control systems with multiplicative faults by optimizing system performance with the aid of a reinforcement learning (RL) approach. To be specific, initially, based on the Youla-Kucera (YK) and dual YK parameterizations, a new performance-driven FTC method is proposed and its capability in dealing with multiplicative faults is proven. Then, data-driven implementation of this method using RL is elaborated. This im...
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作者:Li, Yuan-Xin
作者单位:Liaoning University of Technology
摘要:This article is devoted to the adaptive asymptotic tracking for a class of uncertain nonlinear systems. The presence of unknown time-varying parameters and uncertain disturbances makes the systems in question essentially different from those in the related works. By skillfully combining adaptive technique and command filter-based backstepping, a novel command filter adaptive tracking controller is successfully designed to achieve asymptotic tracking. The typical feature of the proposed control...
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作者:Tan, Xiao; Shaw Cortez, Wenceslao; Dimarogonas, Dimos V.
作者单位:Royal Institute of Technology
摘要:In this article, we propose a notion of high-order (zeroing) barrier functions (HOBFs) that generalizes the concept of zeroing barrier functions and guarantees set forward invariance by checking their higher order derivatives. The proposed formulation guarantees asymptotic stability of the forward invariant set, which is highly favorable for robustness with respect to model perturbations. No forward completeness assumption is needed in our setting in contrast to existing HOBF methods. For the ...
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作者:Chen, Yang-Yang; Chen, Kaiwen; Astolfi, Alessandro
作者单位:Southeast University - China; Southeast University - China; Imperial College London; University of Rome Tor Vergata
摘要:A novel adaptive method to achieve both path following and formation moving along desired orbits in the presence of a spatio-temporal flowfield is presented. The flowfield is a spatio-temporal general flow with unknown time-varying parameters. The so-called congelation of variables method is used to estimate the time-varying flow parameters, which do not have any restrictions on the rate of their variation. The asymptotic properties of the resulting adaptive system are studied in detail. Simul...
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作者:Shu, Han; Zhang, Xuan; Li, Na; Papachristodoulou, Antonis
作者单位:Tsinghua Shenzhen International Graduate School; Harvard University; University of Oxford
摘要:This article presents a control reconfiguration approach to improve the performance of two classes of dynamical systems. Motivated by recent research on re-engineering cyber-physical systems, we propose a three-step control retrofit procedure. First, we reverse-engineer a dynamical system to dig out an optimization problem it actually solves. Second, we forward-engineer the system by applying a corresponding faster algorithm to solve this optimization problem. Finally, by comparing the origina...
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作者:Zhang, Qichun; Wang, Hong
作者单位:University of Bradford; United States Department of Energy (DOE); Oak Ridge National Laboratory
摘要:This article presents a novel data-based approach to investigate the non-Gaussian stochastic distribution control problem. As the motivation of this article, the existing methods have been summarised regarding to the drawbacks, for example, neural network weights training for unknown stochastic distribution and so on. To overcome these disadvantages, a new transformation for dynamic probability density function is given by kernel density estimation using interpolation. Based upon this transfor...
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作者:Ren, Qifeng; Kao, Yonggui; Wang, Changhong; Xia, Hongwei; Wang, Xiaoli
作者单位:Ocean University of China; Harbin Institute of Technology; Harbin Institute of Technology; Harbin Institute of Technology
摘要:Dynamic characteristics of sliding variables for the generalized discrete reaching law are investigated, such as phenomena of reaching condition and ultimate boundedness of sliding variables. The discussed reaching law is relatively more general than some others in the literature, because it contains a wider range of decay factors, which could be positive or negative. First, a sufficient and necessary condition is obtained ensuring that the generalized reaching law satisfies the reaching condi...
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作者:Xu, Yuhang; Yang, Hao; Jiang, Bin; Polycarpou, Marios M.
作者单位:Nanjing University of Aeronautics & Astronautics; University of Cyprus; University of Cyprus
摘要:This article addresses the distributed optimal fault estimation (FE) and fault-tolerant control (FTC) issues under the bidirectional interaction between a possibly faulty interconnected system and its associated diagnostic interconnected observer. The proposed methodology is based on a framework, named Stackelberg differential graphical game, in which the interconnected observer and its corresponding interconnected system are formulated as two graphical games, and they, respectively, play the ...