典型文献
Finite-Time Distributed Identification for Nonlinear Interconnected Systems
文献摘要：
In this paper, a novel finite-time distributed identification method is introduced for nonlinear interconnected systems. A distributed concurrent learning-based discontinuous gradient descent update law is presented to learn uncertain interconnected subsystems' dynamics. The concurrent learning approach continually minimizes the identification error for a batch of previously recorded data collected from each subsystem as well as its neighboring subsystems. The state information of neighboring interconnected subsystems is acquired through direct communication. The overall update laws for all subsystems form coupled continuous-time gradient flow dynamics for which finite-time Lyapunov stability analysis is performed. As a byproduct of this Lyapunov analysis, easy-to-check rank conditions on data stored in the distributed memories of subsystems are obtained, under which finite-time stability of the distributed identifier is guaranteed. These rank conditions replace the restrictive persistence of excitation (PE) conditions which are hard and even impossible to achieve and verify for interconnected subsystems. Finally, simulation results verify the effectiveness of the presented distributed method in comparison with the other methods.
文献关键词：
中图分类号：
作者姓名：
Farzaneh Tatari;Hamidreza Modares;Christos Panayiotou;Marios Polycarpou
作者机构：
Mechanical Engineering Department,Michigan State University,East Lansing,MI 48824 USA;KIOS Research and Innovation Center of Excellence and the Department of Electrical and Computer Engineering,University of Cyprus,Nicosia 1678,Cyprus
文献出处：
引用格式：
[1]Farzaneh Tatari;Hamidreza Modares;Christos Panayiotou;Marios Polycarpou-.Finite-Time Distributed Identification for Nonlinear Interconnected Systems)[J].自动化学报（英文版）,2022(07):1188-1199
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B类：
Finite,Time,Distributed,Identification,Nonlinear,Interconnected,Systems,this,paper,novel,finite,distributed,identification,introduced,nonlinear,interconnected,concurrent,learning,discontinuous,gradient,descent,update,presented,uncertain,subsystems,dynamics,approach,continually,minimizes,error,batch,previously,recorded,data,collected,from,each,well,its,neighboring,state,information,acquired,through,direct,communication,overall,laws,coupled,flow,which,Lyapunov,stability,analysis,performed,byproduct,easy,check,rank,conditions,stored,memories,are,obtained,under,identifier,guaranteed,These,replace,restrictive,persistence,excitation,PE,hard,even,impossible,achieve,verify,Finally,simulation,results,effectiveness,comparison,other,methods
AB值：
0.562458
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