Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/132155
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Type: Journal article
Title: A new fixed-time consensus tracking approach for second-order multiagent systems under directed communication topology
Author: Ni, J.
Tang, Y.
Shi, P.
Citation: IEEE transactions on systems, man, and cybernetics. Systems, 2021; 51(4):2488-2500
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Issue Date: 2021
ISSN: 2168-2216
2168-2232
Statement of
Responsibility: 
Junkang Ni, Yang Tang, and Peng Shi
Abstract: This paper considers fixed-time consensus tracking of second-order multiagent systems (MASs) under directed interaction topology. A novel distributed observer is presented to estimate the leader’s states within a fixed time, which overcomes the difficulties caused by the asymmetry of the Laplacian matrix. A sliding surface is designed and a nonsingular terminal sliding mode consensus protocol is developed to achieve fixedtime convergence of the tracking error to the origin. It is shown that each follower can track the leader’s trajectory within a fixed time. Particularly, the gain of the presented consensus protocol is directly related to the prescribed time, which makes it convenient to determine and tune the gain according to the requirement of convergence time. Moreover, the presented control protocol reduces the conservativeness of the convergence time estimation for sliding motion. The simulation results validate the effectiveness of the proposed consensus scheme.
Keywords: Consensus tracking; directed graph; distributed observer; fixed-time stability; multiagent systems (MASs)
Rights: © 2019 IEEE.
DOI: 10.1109/TSMC.2019.2915562
Published version: http://dx.doi.org/10.1109/tsmc.2019.2915562
Appears in Collections:Aurora harvest 4
Electrical and Electronic Engineering publications

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