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Journal of Shanghai Jiaotong university(Science) 2008年第6期13卷 744-747页

作者：吴瑜许晓栋李从心 Department of Plasticity Technology Shanghai Jiaotong UniversityShanghai 200030China

A cybernetics model of manufacturing execution system(MES CM) was proposed and studied from the viewpoint of *** with the features of manufacturing system, the MES CM was modeled by"generalized modeling"method that is discussed in large-scale system *** mathematical model of MES CM was constructed by the generalized operator model, and the main characteristics of MES CM were analyzed.

关键词： cybernetics manufacturing execution system large scale system

Global Optimization of large scale HVAC system

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Global Optimization of Large Scale HVAC System

ON DECENTRALIZED STABILIZATION OF LINEAR large scale systemS WITH SYMMETRIC CIRCULANT STRUCTURE

第二十九届中国控制会议

作者： YAN Xiuying1,REN Qingchang1,MENG Qinglong2 1.Xi''an University of Architecture&Technology,Xi''an 710055,P.R.China2.Xi''an Jiaotong University,Xi''an 710049,P.R.China

A large-scale Variable Air Volume（VAV）air-conditioning system composed of several subsystems is ***’s a multi-variable,strongly coupled,time variant,nonlinear and large time delay *** system is wholly analyzed with large-scale system theory（LSST）in this *** learning control（ILC）is adopted to solve the problems of long steady-state time and large overshoot when set-points *** system is divided based on "decomposition and coordination" *** steady-state and energy consumption models are built for global optimal *** the evaluation of the large scale hierarchical control system theory,ILC and steady-state optimization strategy（LSHC-ILC-SO）,a case is studied on the VAV experimental *** results show that all devices work under coordinated conditions with coordination strategy under variable *** global steady state optimization can reduce the total energy consumption.

关键词： Global optimization Steady state large scale system

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Applied Mathematics and Mechanics(English Edition) 2004年第8期25卷 863-872页

作者：金朝永张湘伟 College of Applied Mathematics Guangdong University of Technology Guangzhou 510090 P.R.China College of Electromechanical Engineering Guangdong University of Technology Guangzhou 510090 P.R.China

The decentralized stabilization of continuous and discrete linear large scale systems with symmetric circulant structure was studied.A few sufficient conditions on decentralized stabilization of such systems were *** the continuous systems,by introducing a concept called the magnitude of interconnected structure,a very important property that the decentralized stabilization of such systems is fully determined by the structure of each isolated subsystem that is obtained when the magnitude of interconnected structure of the overall system is *** the decentralized stabilization of such systems can be got by only appropriately designing or modifying the structure of each isolated subsystem,no matter how complicated the interconnected structure of the overall system is.A algorithm for obtaining decentralized state feedback to stabilize the overall system is *** discrete systems were also *** results show that there is a great dfference on decentralized stabilization between continuous case and discrete case.

关键词： large scale system decentralized stabilization symmetric circulant structure magnitude of interconnected structure Ricatti equation

ON　EXPONENTIAL　STABILITY　OF　large　scale　systemS　WITH　UNBOUNDED　DELAY

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Acta Mathematicae Applicatae Sinica 1994年第1期10卷 48-58页

作者：李黎明王联王慕秋 Hebei Institute of Finance and Economics Shijiazhuang China Institute of Mathematics the Chinese Academy of Sciences Beijing China

In this paper, we first give a sufficient and necessary condition to guarantee the exponential stability of a special system with unbounded delay, then by using the delay-differential comparison theorem, obtain some s... 详细信息

关键词： Unbounded delay exponential stability large scale system

Constructibility of a causal/impulse free NDS using descriptor form subsystems

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Science China(Information Sciences) 2022年第4期65卷 197-211页

作者： Tong ZHOU Department of Automation and BNRist Tsinghua University

Requirements are investigated in this paper for each descriptor form subsystem, with which a causal/impulse free networked dynamic system(NDS) can be constructed. For this purpose, a matrix rank-based necessary and sufficient condition is at first derived for the causality/impulse freeness of an NDS,with the matrix depending affinely on subsystem connections. From this result, a necessary and sufficient condition is derived on each subsystem for causal/impulse free NDS constructibility. This condition further leads to a necessary and sufficient condition for the existence of a local static output feedback that guarantees the construction of a causal/impulse free NDS. Remarkably, all the numerical computations involved in these conditions are performed independently on each individual subsystem. Situations have also been clarified in which NDS causality/impulse freeness is independent of subsystem connections. It has also been made clear that local static output feedbacks may not be helpful in constructing a causal NDS.

关键词： causality descriptor system impulse free large scale system networked dynamic system singular system

Decentralized observers for a class of large-scale singular systems via LMI

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International Journal of Intelligent Computing and Cybernetics 2013年第2期6卷 158-181页

作者： Mejda Mansouri Latifa Boutat-Baddas Mohamed Darouach Hassani Messaoud Ecole Nationale d’Ingenieurs de Monastir MonastirTunisie and Centre de Recherche en AutomatiqueNancy-UniversiteIUT de LongwyCosnes et RomainFrance Centre de Recherche en Automatique de Nancy Nancy-UniversiteCosnes et RomainFrance Ecole Nationale d’Ingenieurs de Monastir MonastirTunisie

Purpose–The purpose of this paper is to propose a decentralized observer for large-scale singular ***/methodology/approach–In this paper,the authors investigate the problem of observers’design for large-scale singular *** proposed decentralized observer is based on a new parameterization of the generalized Sylvester equation *** considered system is partitioned into small-sizes interconnected subsystems with unknown ***–A decentralized observer based on new parameterization of generalized Sylvester *** performance of the proposed approach is illustrated by a numerical ***/value–The proposed approach unites the full-order,the reduced-order and the minimal order observer design for large-scale *** conditions of the existence of this observer are given in the linear matrix inequalities(LMI)form.

关键词： systems theory Design Control systems large scale system Decentralized observer Singular system Linear matrix inequalities

Hierarchical Least Squares Identification and Its Convergence for large scale Multivariable systems

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Tsinghua Science and Technology 2002年第3期7卷 299-304页

作者：丁锋丁韬 Department of Automation Tsinghua University Beijing 100084 China

The recursive least squares identification algorithm (RLS) for large scale multivariable systems requires a large amount of calculations, therefore, the RLS algorithm is difficult to implement on a computer. The computational load of estimation algorithms can be reduced using the hierarchical least squares identification algorithm (HLS) for large scale multivariable systems. The convergence analysis using the Martingale Convergence Theorem indicates that the parameter estimation error (PEE) given by the HLS algorithm is uniformly bounded without a persistent excitation signal and that the PEE consistently converges to zero for the persistent excitation condition. The HLS algorithm has a much lower computational load than the RLS algorithm.

关键词： large scale system identification parameter estimation hierarchical identification

Decentralized robust control synthesis for large scale uncertain systems by using GARP

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Decentralized robust control synthesis for large scale uncer...