%0 Journal Article
%T Distributed H_{infinity} Coordination of Multi-agent Systems with Directed Switching Topology and Time-delay
%A Lixin Gao
%A Yanping Luo
%J Journal of Computers
%D 2012
%I Academy Publisher
%R 10.4304/jcp.7.5.1261-1269
%X In this paper, we consider multi-agent H_{infinity} consensus control problems with external disturbance under directed switching topologies. Both switching networks with and without time-delay are taken into consideration. By the model transformation, the multi-agent H_{infinity} control problem is converted into the switching linear system H_{infinity} control problem with special structure. Based on graph theory and common Lyapunov function method, we establish LMI sufficient conditions under which all agents can reach consensus with the desired H_{infinity} performance in two cases of zero and nonzero communication delays respectively. Specially, we obtain an explicit estimation expression of H_{infinity} performance index in undirected non-time-delay switching topology case. Finally, two numerical examples are provided to illustrate the effectiveness of the obtained results.
%K Multi-agent systems
%K H_{infinity} control
%K switching topology
%K consensus
%K time-delay
%U http://ojs.academypublisher.com/index.php/jcp/article/view/5572