Skip to Main content Skip to Navigation
Journal articles

Autonomous and non-autonomous fixed-time leader–follower consensus for second-order multi-agent systems

Abstract : This paper addresses the problem of consensus tracking with fixed-time convergence, for leader–follower multi-agent systems with double-integrator dynamics, where only a subset of followers has access to the state of the leader. The control scheme is divided into two steps. The first one is dedicated to the estimation of the leader state by each follower in a distributed way and in a fixed-time. Then, based on the estimate of the leader state, each follower computes its control law to track the leader in a fixed-time. In this paper, two control strategies are investigated and compared to solve the two mentioned steps. The first one is an autonomous protocol which ensures a fixed-time convergence for the observer and for the controller parts where the Upper Bound of the Settling-Time (UBST) is set a priory by the user. Then, the previous strategy is redesigned using time-varying gains to obtain a non-autonomous protocol. This enables to obtain less conservative estimates of the UBST while guaranteeing that the time-varying gains remain bounded. Some numerical examples show the effectiveness of the proposed consensus protocols.
Document type :
Journal articles
Complete list of metadata

https://hal-uphf.archives-ouvertes.fr/hal-03423556
Contributor : Mylène Delrue Connect in order to contact the contributor
Submitted on : Wednesday, November 10, 2021 - 10:52:43 AM
Last modification on : Thursday, November 11, 2021 - 4:00:04 AM

Identifiers

Collections

Citation

Miguel Trujillo, Rodrigo Aldana-Lopez, David Gomez-Gutierrez, Michael Defoort, Javier Ruiz-León, et al.. Autonomous and non-autonomous fixed-time leader–follower consensus for second-order multi-agent systems. Nonlinear Dynamics, Springer Verlag, 2020, 102 (4), pp.2669-2686. ⟨10.1007/s11071-020-06075-7⟩. ⟨hal-03423556⟩

Share

Metrics

Record views

9