Consensus for nonlinear multi-agent systems with actuator saturation by adaptive event-triggered scheme

• Published in: ISA transactions Vol. 149; pp. 146 - 154
• Main Authors: Xu, Jing, Huang, Jun, Zhang, Yueyuan
• Format: Journal Article
• Language: English
• Published: United States Elsevier Ltd 01.06.2024
• Subjects: Actuator saturation; Adaptive event-triggered mechanism; Incremental quadratic constraints; Multi-agent systems; Incremental quadratic constraints; Adaptive event-triggered mechanism; Actuator saturation; Multi-agent systems
• ISSN: 0019-0578; 1879-2022; 1879-2022
• DOI: 10.1016/j.isatra.2024.04.027

This paper studies the leader–follower consensus problem for nonlinear multi-agent systems with actuator saturation by adaptive event-triggered scheme. This adaptive mechanism allows parameters in triggered mechanism to change automatically compared to fixed ones in traditional strategies. The paper introduces two distinct approaches to address the issue of saturation. The first approach is sector bounded condition, while the second relies on convex hull representation. Compared with the former one, the latter one can reduce the conservatism of controller design effectively. Furthermore, it is assumed that the nonlinear function adheres to incremental quadratic limitations, thereby offering a more comprehensive depiction of its nonlinear properties. Finally, the validity of the proposed approaches is demonstrated by one numerical example in the background of mechanical systems. •The leader–follower consensus problem for nonlinear multi-agent systems with actuator saturation is studied.•Adaptive event-triggered mechanism for multi-agent systems is considered.•Two methods for dealing with saturation are proposed, one is sector bounded condition and another is convex hull representation.•The nonlinear function is supposed to satisfy incremental quadratic constraints.