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Finite-time leader-follower consensus of a discrete-time system via sliding mode control

基于离散系统滑模控制的有限时间领导—跟随一致性

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Abstract

In this study, we solve the finite-time leader-follower consensus problem of discrete-time second-order multi-agent systems (MASs) under the constraints of external disturbances. First, a novel consensus scheme is designed using a novel adaptive sliding mode control theory. Our adaptive controller is designed using the traditional sliding mode reaching law, and its advantages are chatter reduction and invariance to disturbances. In addition, the finite-time stability is demonstrated by presenting a discrete Lyapunov function. Finally, simulation results are presented to prove the validity of our theoretical results.

摘要

研究了离散时间二阶多智能体系统在外部干扰约束下的有限时间领导—跟随一致性问题。首先利用自适应滑模控制理论, 设计了一种新的有限时间一致性方案。自适应控制律是在传统滑模趋近律基础上改进设计的, 其优点是减少抖振并保持对干扰的不变性。此外, 通过给出一个离散李雅普诺夫函数, 证明了离散时间二阶多智能体系统的有限时间稳定性。最后, 数值模拟结果验证了理论分析的有效性。

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Correspondence to Ruizhuo Song  (宋睿卓).

Additional information

Project supported by the National Natural Science Foundation of China (Nos. 61873300 and 61722312) and the Fundamental Research Funds for the Central Universities, China (Nos. FRF-MP-20-11 and FRF-IDRY-20-030)

Contributors

Ruizhuo SONG and Shi XING designed the research. Shi XING processed the data. Ruizhuo SONG, Shi XING, and Zhen XU drafted the paper. Ruizhuo SONG and Shi XING revised and finalized the paper.

Compliance with ethics guidelines

Ruizhuo SONG, Shi XING, and Zhen XU declare that they have no conflict of interest.

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Song, R., Xing, S. & Xu, Z. Finite-time leader-follower consensus of a discrete-time system via sliding mode control. Front Inform Technol Electron Eng 23, 1057–1068 (2022). https://doi.org/10.1631/FITEE.2100565

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  • DOI: https://doi.org/10.1631/FITEE.2100565

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