Distributed consensus control for networked Euler-Lagrange systems over directed graphs: A dynamic event-triggered approach

作     者：Wei, Minfeng Xia, Yuanqing Zhang, Yuan Zhan, Yufeng Cui, Bing 

作者机构：Beijing Inst Technol Sch Automat Key Lab Intelligent Control & Decis Complex Syst Beijing 100081 Peoples R China 

出 版 物：《INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL》 (国际强度与非线性控制杂志)

年 卷 期：2022年第32卷第16期

页      面：8786-8803页

核心收录：

学科分类：0711[理学-系统科学] 0808[工学-电气工程] 07[理学] 08[工学] 070105[理学-运筹学与控制论] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 0701[理学-数学] 071101[理学-系统理论] 

基　　金：National Natural Science Foundation of China National Natural Science Foundation Projects of International Cooperation and Exchanges 

主　　题：distributed event-triggered consensus control dynamic triggering mechanism Euler-Lagrange dynamics multi-agent systems 

摘      要：This paper considers the distributed dynamic event-triggered consensus problem of multi-agent systems with Euler-Lagrange dynamics over directed graphs in the presence of uncertain disturbances. To achieve consensus, a dynamic triggering law is designed such that consensus of reference model can be achieved. Different from the static triggering mechanism, an extra variable is involved in the proposed dynamic triggering law, which benefits the exclusion of the Zeno behavior. Then, an auxiliary variable is introduced to simplify agent dynamics, which benefits the controller design. Based on the auxiliary variable, a local controller is further proposed to guarantee the tracking ability of the auxiliary variable to the reference model. Owing to this treatment, consensus of agents can be reached in the presence of external disturbances. In addition, no continuous communication is needed in either controller updates or triggering detection. Finally, numerical simulations are given to demonstrate the effectiveness of the proposed consensus protocol and its advantage in reducing the communication overhead compared with the relevant static triggering mechanism.