Targeted agreement of multiple Lagrangian systems
Targeted agreement of multiple Lagrangian systems
复制标题
多个拉格朗日系统的目标一致
DOI:
10.1016/j.automatica.2017.07.010
复制
发表时间:
2017-10
期刊:
影响因子:
6.4
通讯作者:
Johansson Karl Henrik
中科院分区:
文献类型:
--
作者:
Meng Ziyang;Yang Tao;Shi Guodong;Dimarogonas Dimos V;Hong Yiguang;Johansson Karl Henrik
In this paper, we study the targeted agreement problem for a group of Lagrangian systems. Each system observes a convex set as its local target and the objective of the group is to reach a generalized coordinate agreement towards these target sets. Typically, the generalized coordinate represents position or angle. We first consider the case when the communication graphs are fixed. A control law is proposed based on each system’s own target sensing and information exchange with neighbors. With necessary connectivity, the generalized coordinates of multiple Lagrangian systems are shown to achieve agreement in the intersection of all the local target sets while generalized coordinate derivatives are driven to zero. We also discuss the case when the intersection of the local target sets is empty. Exact targeted agreement cannot be achieved in this case. Instead, we show that approximate targeted agreement can be guaranteed if the control gains are properly chosen. In addition, when communication graphs are allowed to be switching, we propose a model-dependent control algorithm and show that global targeted agreement is achieved when joint connectivity is guaranteed and the intersection of local target sets is nonempty. Simulations are given to validate the theoretical results.
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