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作者：Almakhles, Dhafer; Abdelrahim, Mahmoud
作者单位：Prince Sultan University; Egyptian Knowledge Bank (EKB); Assiut University
摘要：In this article, we study the problem of output feedback control for nonlinear systems under event-triggered implementation and dynamic quantization. We focus on the case where the initial output measurement is unknown and we propose a novel dynamic quantization policy to capture the output in a finite time. Next, the event-triggering mechanism that we design relies on a dynamic variable, which allows for reducing the amount of transmissions over the network. The dynamic quantizer is binary in...
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作者：Lee, Ti-Chung; Su, Youfeng
作者单位：National Sun Yat Sen University; Fuzhou University
摘要：This article formulates and analyzes agreements of the nonlinear opinion dynamics in social networks according to switching interactions, where the agents' susceptibilities depend on current states. These switching interactions are formulated by switching directed graphs with some mild joint connectivity, and depicted by nonlinear switching model. An extended LaSalle invariance principle is established for analyzing the agreements of this switching model as well as three specialized scenarios,...
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作者：Li, Yushan; He, Jianping; Chen, Cailian; Guan, Xinping
作者单位：Shanghai Jiao Tong University; Shanghai Jiao Tong University; Shanghai Jiao Tong University
摘要：Topology inference for network systems (NSs) plays a crucial role in many areas. This article advocates a causality-based method based on noisy observations from a single trajectory of an NS, which is represented by the state-space model with general directed topology. Specifically, we first prove its close relationships with the ideal Granger estimator for multiple trajectories and the traditional ordinary least squares (OLS) estimator for a single trajectory. Along with this line, we analyze...
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作者：Yang, Peng; Liu, Feng; Liu, Tao; Hill, David J.
作者单位：Tsinghua University; Tsinghua University; State Grid Corporation of China; University of Hong Kong; Monash University
摘要：Power system transient stability has been translated into a Lyapunov stability problem of the postdisturbance equilibrium for decades. Despite substantial results, conventional theories suffer from the stringent requirement of knowing the postdisturbance equilibrium a priori. In contrast, the wisdom from practice, which certificates stability by only the observation of converging frequencies and voltages, seems to provide an equilibrium-independent approach. Here, we formulate empirical wisdom...
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作者：Hao, Yaqi; Zhang, Ji-Feng
作者单位：Shandong University; Chinese Academy of Sciences; Academy of Mathematics & System Sciences, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
摘要：Distributed optimization of multiagent systems over uniform hypergraphs is considered in this article. Given a global objective function in advance, an ideal design method of utility functions for each agent is put forward to convert a multiagent system into a budget-balanced potential network game (BBPNG) with the preassigned objective function as its potential function. First, the verification of BBPNGs is simplified to verify whether its fundamental network game is a budget-balanced potenti...
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作者：Henry, David
作者单位：Universite de Bordeaux
摘要：This article establishes the explicit formulas for the equivalence between fault detection filters and observers. The method relies on solving a Sylvester equation, the Schur decomposition, and algebraic manipulations. The equivalence being demonstrated valid from a generic point of view, it is shown that H-infinity,H_,H-2,and H-2g robust residual generators and H-infinity\mu fault estimators are particular cases. A numerical example and a realistic satellite's example illustrate the equivalen...
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作者：Maghenem, M.; Pasillas-Lepine, W.; Loria, A.; Aguado-Rojas, M.
作者单位：Centre National de la Recherche Scientifique (CNRS); Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS)
摘要：We analyze a case study of output-feedback stabilization of an unobservable equilibrium. The problem involves achieving two conflicting goals: to estimate the unmeasured states, for which the system must a priori operate in an oscillatory regime, and to stabilize an equilibrium asymptotically. To overcome this quandary we propose a novel hybrid controller that generates a piecewise constant dwindling reference designed to make the system operate in an oscillatory, yet asymptotically stable, re...
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作者：Wang, Liqing; Wu, Zheng-Guang
作者单位：Zhejiang Sci-Tech University; Shenzhen Polytechnic University; Zhejiang University
摘要：Synchronization of large-scale Boolean networks (BNs) is studied in this article. Using semi-tensor product of matrices, the algebraic structure of all subnetworks' relationships is constructed. A necessary and sufficient condition is obtained for synchronization of large-scale BNs. For those asynchronous large-scale BNs, pinning control is first applied to achieve the control objective, including choosing the subnetworks to be controlled, by designing the corresponding feedback control accord...
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作者：Baranwal, Mayank; Budhraja, Param; Raj, Vishal; Hota, Ashish R.
作者单位：Tata Sons; Tata Consultancy Services Limited (TCS); Boston University; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Kharagpur
摘要：Gradient-based first-order convex optimization algorithms find widespread applicability in a variety of domains, including machine learning tasks. Motivated by the recent advances in fixed-time stability theory of continuous-time dynamical systems, we introduce a generalized framework for designing accelerated optimization algorithms with strongest convergence guarantees that further extend to a subclass of nonconvex functions. In particular, we introduce the GenFlow algorithm and its momentum...
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作者：Dibo, Aline; Oliveira, Tiago Roux
作者单位：Universidade do Estado do Rio de Janeiro
摘要：Extremum seeking control aims at determining and keeping the output of a nonlinear static or dynamic map on its unknown extremum point. In the literature, despite considering an unknown objective function in the real-time optimization problem, it is mandatory to know whether the extremum point is a maximum or a minimum, which is characterized by means of the Hessian sign of the nonlinear scalar map. This article proposes that the process of extremum seeking occurs independently of the Hessian ...
