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作者：Jetto, Leopoldo; Orsini, Valentina; Romagnoli, Raffaele
作者单位：Marche Polytechnic University; Carnegie Mellon University
摘要：The purpose of this article is to reduce some technical difficulties related to the complexity of stability and feasibility analysis of Model Predictive Control (MPC) as well as to reduce the complexity of the relative optimization procedure. The new approach is based on a two degrees of freedom control scheme where the output r(k) of a feedforward input estimator is used as input forcing the closed-loop system Sigma(f). This latter is given by the feedback connection of a Linear Time Invarian...
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作者：Zhao, Wenxiao; Weyer, Erik; Yin, George
作者单位：Chinese Academy of Sciences; Academy of Mathematics & System Sciences, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; University of Melbourne; Wayne State University
摘要：In this article, nonparametric identification of nonlinear autoregressive systems with exogenous inputs (NARX) is considered; a general criterion function is introduced for estimating the value of the nonlinear function within the system at any fixed point. The criterion function is constructed using a kernel together with a convex objective function. Not only does this framework include the classical kernel-based weighted least-squares estimator but also the kernel-based L-l, l >= 1 criteria ...
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作者：Dai, Jiajun; Geng, Na; Xie, Xiaolan
作者单位：Shanghai Jiao Tong University; Shanghai Jiao Tong University; IMT - Institut Mines-Telecom; Mines Saint-Etienne; Centre National de la Recherche Scientifique (CNRS); Universite Clermont Auvergne (UCA); Shanghai Jiao Tong University
摘要：This article considers an admission quota control which determines the maximum daily admission (known as the quota) of controllable demand that shares capacity with uncontrollable demand. General arrival processes and general discrete stochastic service time are assumed. An infinite-horizon Markov decision process model is proposed to maximize the expected total discounted net reward comprising admission revenues and overcapacity costs. Through formal proofs, the optimal quota control which ma...
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作者：Yan, Yan; Yu, Shuanghe; Yu, Xinghuo
作者单位：Dalian Maritime University; Royal Melbourne Institute of Technology (RMIT)
摘要：In this article, we study the Euler's discretization effect on a sliding-mode control system with a supertwisting algorithm (STA). We start from the undisturbed STA and show that the trajectory eventually converges to an exactly bounded region around the origin. Periodic behaviors are explored. Furthermore, the discretization effect on the disturbed STA is established, and the stability analysis is given. Simulation results demonstrate the effectiveness of the proposed strategies.
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作者：Zhu, Yang; Fridman, Emilia
作者单位：Zhejiang University; Tel Aviv University
摘要：This article proposes a decentralized predictor-based output feedback to compensate for large delays in large-scale interconnected systems under the premise that the interconnections between subsystems are not strong. The full state of each subsystem is assumed to be unmeasurable and the observer-based output feedback is employed. Two methods are used to tackle the large delays: the backstepping-based partial differential equation (PDE) approach and the reduction-based ordinary differential eq...
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作者：Lian, Jie; Li, Can
作者单位：Dalian University of Technology; Jiangsu Normal University; Dalian University of Technology
摘要：This article is concerned with the sliding mode control (SMC) for stabilizing a switched linear system with external disturbances and uncertain nonlinearities. The state sampling is implemented by an event-triggered mechanism (ETM) and the sampled data are transmitted through a limited-bandwidth digital channel. The main challenge of such a work comes from the quantizer saturation and quantization error in the SMC design with finite-level quantization and the mismatched control caused by the s...
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作者：Mohammadi, Hesameddin; Razaviyayn, Meisam; Jovanovic, Mihailo R.
作者单位：University of Southern California; University of Southern California
摘要：We study the robustness of accelerated first-order algorithms to stochastic uncertainties in gradient evaluation. Specifically, for unconstrained, smooth, strongly convex optimization problems, we examine the mean-squared error in the optimization variable when the iterates are perturbed by additive white noise. This type of uncertainty may arise in situations where an approximation of the gradient is sought through measurements of a real system or in a distributed computation over a network. ...
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作者：Liu, Bin; Yang, Meng; Liu, Tao; Hill, David J.
作者单位：Hunan University of Technology; University of Hong Kong
摘要：This article studies the stabilization to exponential input-to-state stability (ISS) via aperiodic intermittent control (APIC) for continuous-time systems. The stabilization is formulated as a problem of minimum activation time rate (MATR) of nontrivial APIC. The MATR is investigated, respectively, for time-triggered APIC (T-APIC) and event-triggered APIC (E-APIC). The MATR of T-APIC is estimated and the criteria of stabilization to ISS via T-APIC are derived. Moreover, the state dependent E-A...
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作者：Bergeling, Carolina; Pates, Richard; Rantzer, Anders
作者单位：Lund University; Lund University
摘要：We characterize a class of systems for which the H-infinity optimal control problem can be simplified in a way that enables sparse solutions and efficient computation. For a subclass of the systems, an optimal controller can be explicitly expressed in terms of the matrices of the system's state-space representation. In many applications, the controller given by this formula, which is static, can be implemented in a decentralized or distributed fashion. Examples are temperature dynamics in buil...
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作者：Yang, Luwei; Liu, Tao; Tang, Zhiyuan; Hill, David J.
作者单位：University of Hong Kong; University of Sydney
摘要：In order to deal with issues caused by the increasing penetration of renewable resources in power systems, this article proposes a novel distributed frequency control algorithm for each generating unit and controllable load in a transmission network to replace the conventional automatic generation control. The targets of the proposed control algorithm are twofold. First, it is to restore the nominal frequency and scheduled net interarea power exchanges after an active power mismatch between ge...
