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Consensus of Discrete Multiagent System with Various Time Delays and Environmental Disturbances

College of Automation, Harbin Engineering University, Harbin 150001, China
Author to whom correspondence should be addressed.
Entropy 2014, 16(12), 6524-6538;
Received: 4 October 2014 / Revised: 9 December 2014 / Accepted: 9 December 2014 / Published: 11 December 2014
(This article belongs to the Special Issue Complex Systems and Nonlinear Dynamics)
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In this paper, the consensus problem of discrete multiagent systems with time varying sampling periods is studied. Firstly, with thorough analysis of various delays among agents, the control input of each agent is designed with consideration of sending delay and receiving delay. With construction of discrete dynamics of state error vector, it is proved by applying Halanay inequality that consensus of the system can be reached. Further, the definition of bounded consensus is proposed in the situation where environmental disturbances exist. In order to handle this problem, the Halanay inequality is extended into a more general one with boundedness property. Based on the new Halanay inequality obtained, the boundedness of consensus error is guaranteed. At last, simulation examples are presented to demonstrate the theoretical conclusions. View Full-Text
Keywords: multiagent system; Halanay inequality; time delay; disturbances multiagent system; Halanay inequality; time delay; disturbances
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Yan, Z.; Wu, D.; Liu, Y. Consensus of Discrete Multiagent System with Various Time Delays and Environmental Disturbances. Entropy 2014, 16, 6524-6538.

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