Minimal inputs/outputs for subsystems in a networked system

被引：16
|
作者：
Zhou, Tong [1 ]
机构：
[1] Tsinghua Univ, Dept Automat, Beijing 100084, Peoples R China
来源：
AUTOMATICA | 2018年 / 94卷
关键词：
Controllability; In-degree; Large scale system; Networked system; Out-degree; Observability; COMPLEX NETWORKS; CONTROLLABILITY; SELECTION;
D O I：
10.1016/j.automatica.2018.04.027
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Minimal input/output selection is investigated in this paper for each subsystem of a networked system. Some novel sufficient conditions are derived, respectively, for the controllability and observability of a networked system, as well as some necessary conditions. These conditions only depend separately on parameters of each subsystem and its in/out-degrees. It is proven that in order to be able to construct a controllable/observable networked system, it is necessary and sufficient that each subsystem is controllable/observable. In addition, both sparse and dense subsystem connections are helpful in making the whole system controllable/observable. An explicit formula is given for the smallest number of inputs/outputs for each subsystem required to guarantee controllability/observability of the whole system. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：161 / 169
页数：9
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