References & Citations
Electrical Engineering and Systems Science > Systems and Control
Title: Fault-tolerant properties of scale-free linear protocols for synchronization of homogeneous multi-agent systems
(Submitted on 27 Mar 2024)
Abstract: Originally, protocols were designed for multi-agent systems (MAS) using information about the network. However, in many cases there is no or only limited information available about the network. Recently, there has been a focus on scale-free synchronization of multi-agent systems (MAS). In this case, the protocol is designed without any prior information about the network. As long as the network contains a directed spanning tree, the scale-free protocol guarantees that the network achieves synchronization.
If there is no directed spanning tree for the network then synchronization cannot be achieved. But what happens when these scale-free protocols are applied to such a network where the directed spanning tree no longer exists? The latter might arise if, for instance, a fault occurs in one of more crucial links. This paper establishes that the network decomposes into a number of basic bicomponents which achieves synchronization among all nodes in this basic bicomponent. On the other hand, nodes which are not part of any basic bicomponent converge to a weighted average of the synchronized trajectories of the basic bicomponents. The weights are independent of the initial conditions and are independent of the designed protocol.
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