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Distributed control of linear time-varying systems interconnected over arbitrary graphs. (English) Zbl 1305.93131
Summary: We focus on designing distributed controllers for interconnected systems in situations where the controller sensing and actuation topology is inherited from that of the plant. The distributed systems considered are composed of discrete-time linear time-varying subsystems interconnected over arbitrary graph structures. The main contribution of this paper is to provide results on general graph interconnection structures in which the graphs have potentially an infinite number of vertices. This is accomplished by first extending previous machinery developed for systems with spatial dynamics on the lattice inline image. We derive convex analysis and synthesis conditions for design in this setting. These conditions reduce to finite sequences of LMIs in the case of eventually periodic subsystems interconnected over finite graphs. The paper also provides results on distributed systems with communication latency and gives an illustrative example on the distributed control of hovercrafts along eventually periodic trajectories. The methodology developed here provides a unifying viewpoint for our previous and related work on distributed control.

MSC:
 93C55 Discrete-time control/observation systems 94C15 Applications of graph theory to circuits and networks 93B36 $$H^\infty$$-control 93B50 Synthesis problems
SDPT3; YALMIP
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