Title
Controllability Analysis for a Networked Dynamic System With Autonomous Subsystems.
Abstract
This technical note investigates the controllability of networked dynamic systems of which some subsystems are not directly affected by external inputs (i.e., autonomous). The topology can be arbitrary, and every subsystem can have different dynamics and even different number of states, inputs and outputs. We show that to guarantee the controllability of the whole system, every subsystem should be controllable when isolated. We establish some necessary and sufficient conditions for the system to be controllable. These conditions essentially depend on the parameters of every subsystem separately or the strongly connected autonomous subsystems, which reduce significantly computation complexity for large-scale networked systems. We reveal that heterogenous networked systems under some assumptions can be separated into several independent subnetworks, such that the controllability of the whole system is equal to the controllability of each subnetwork. Based on these conditions, criteria that can be easily verified are given for the controllability of networked systems with some special topologies.
Year
DOI
Venue
2017
10.1109/TAC.2016.2612831
IEEE Trans. Automat. Contr.
Keywords
Field
DocType
Controllability,Network topology,Complexity theory,Topology,Indexes,System analysis and design
Structured systems analysis and design method,Controllability,Control theory,Network controllability,Control engineering,Network topology,Strongly connected component,Subnetwork,Mathematics,Dynamical system,Computation complexity
Journal
Volume
Issue
ISSN
62
7
0018-9286
Citations 
PageRank 
References 
10
0.58
8
Authors
2
Name
Order
Citations
PageRank
Yuan Zhang1225.64
Tong Zhou244876.83