On topology and dynamics of consensus among linear high-order agents

Authors:
Peter Wieland;Jung-Su Kim;Frank Allgower
Affiliations:
Institute for Systems Theory and Automatic Control, University of Stuttgart, Stuttgart, Germany;Department of Control and Instrumentation Engineering, Seoul National University of Technology, Seoul, Korea;Institute for Systems Theory and Automatic Control, University of Stuttgart, Stuttgart, Germany
Venue:
International Journal of Systems Science
Year:
2011

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Abstract

Consensus of a group of agents in a multi-agent system with and without a leader is considered. All agents are modelled by identical linear n-th order dynamical systems while the leader, when it exists, may evolve according to a different linear model of the same order. The interconnection topology between the agents is modelled as a directed weighted graph. We provide answers to the questions of whether the group converges to consensus and what consensus value the group eventually reaches. To that end, we give a detailed analysis of relevant algebraic properties of the graph Laplacian. Furthermore, we propose an LMI-based design for group consensus in the general case.