Connection‐graph‐based event‐triggered output consensus in multi‐agent systems with time‐varying couplings. Issue 1 (1st January 2015)

• Record Type: Journal Article
• Authors: Zhang, Xu; Chen, Maoyin; Wang, Ling; Pang, Zhonghua; Zhou, Donghua
• Is Part Of: IET control theory & applications. Volume 9:Issue 1(2015)
• Page Start: 1
• Page End: 9
• Publication Date: 2015-01-01
• Subjects: graph theory -- multi‐agent systems -- time‐varying systems -- multi‐robot systems -- Lyapunov methods -- feedback -- nonlinear control systems; connection‐graph‐based event‐triggered output consensus -- multiagent systems -- time‐varying couplings -- nonlinear MAS -- graph theoretical reasoning -- Lyapunov function -- local output‐feedback controllers -- connection‐graph‐based state‐dependent functions -- time‐dependent event functions; Control theory -- Periodicals; Automatic control -- Periodicals; 629.8312
• DOI: 10.1049/iet-cta.2013.1117
• Languages: English
• ISSNs: 1751-8644

Abstract

Abstract : Event‐triggered strategies are effective to update local controllers in multi‐agent systems (MASs) at necessary discrete times. Based on graph theoretical reasoning, the authors study the distributed event‐triggered output consensus in MASs with time‐varying couplings. Graph theoretical reasoning provides us a Lyapunov function that fully utilises the properties of a graph such as the path between two arbitrary agents. With this function, the updating of local output‐feedback controllers is determined by connection‐graph‐based state‐dependent or time‐dependent event functions. Interesting enough, the proposed event‐triggered schemes can also be effectively extended to non‐linear MASs with time‐varying couplings. Theoretical analysis and numerical simulations verify the main results.