Journal
IET CONTROL THEORY AND APPLICATIONS
Volume 11, Issue 16, Pages 2910-2915Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/iet-cta.2016.1638
Keywords
linear systems; stochastic systems; multi-agent systems; directed graphs; variable structure systems; Brownian motion; general linear stochastic multi-agent systems; Brownian motion; directed graph; sliding mode variable structure consensus tracking protocol; sub-reachability; auxiliary function method
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Funding
- National Nature Science Foundation [61573154, 61573156]
- Science and Technology Project of Guangdong Province [2015A010106003]
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This study deals with the consensus tracking problem for general linear multi-agent systems driven by Brownian motion. A directed graph is used to represent the communication topology of the multi-agent network. To solve the consensus tracking problem, an innovative concept of the sub-reachability of the sliding motion to approach approximately the specified sliding surface is introduced. Under the concept of sub-reachability, the sliding mode variable structure consensus tracking protocol is synthesised to guarantee the sub-reachability of the sliding motion in a finite time. By using the auxiliary function method and stochastic It (O) over cap integrals techniques with respect to Brownian motion, a sufficient condition for mean square asymptotic consensus tracking is derived. In particular, the consensus tracking criteria are very concise and can be implemented easily. Finally, a simulation example is utilised to illustrate the usefulness of the proposed control protocol.
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