1 research outputs found
Controllability of Directed Heterogeneous Networked MIMO Systems
This paper studies the controllability of networked multi-input-multi-output
(MIMO) systems, in which the network topology is weighted and directed, and the
nodes are heterogeneous higher-dimensional linear time-invariant (LTI)
dynamical systems. The primary objective is to search for controllability
criteria beyond those already known for homogeneous networks. The focus is on
the effects of the network topology, node dynamics, external control inputs, as
well as the inner interactions on the network controllability. It is found that
a network of heterogeneous systems can be controllable even if the
corresponding homogeneous network topology is uncontrollable. The finding thus
unravels another fundamental property that affects the network
controllability---the heterogeneity of the node dynamics. A necessary and
sufficient condition is derived for the controllability of heterogeneous
networked MIMO LTI systems. For some typical cases, necessary and/or sufficient
controllability conditions are specified and presented on the node dynamics,
inner interactions, as well as the network topology.Comment: A preliminary version of this work was presented at IWCSN 201