Adaptive neural finite-time formation control for multiple underactuated vessels with actuator faults

نویسندگان

چکیده

This paper proposes a novel neural finite-time formation control algorithm for multiple underactuated surface vessels with actuator faults. In the algorithm, leader-follower problem is formulated as two-stage tracking problem. First, to address configuration without information of leader velocity, virtual vessel designed track reference trajectory leader. Second, an adaptive fault-tolerant (AFFTC) presented follower vessel. By fusion network (NN) and fractional power, model uncertainty approximated convergence obtained. Furthermore, concise law developed compensate upper bounded NN weights lump disturbance which include approximation error NN, gain uncertainty, faults marine environmental disturbance. On basis Lyapunov theory, stability analysis proves that all signals in closed-loop system are practical stable. Finally, numerical simulations performed demonstrate performance superiority proposed algorithm.

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ژورنال

عنوان ژورنال: Ocean Engineering

سال: 2021

ISSN: ['1873-5258', '0029-8018']

DOI: https://doi.org/10.1016/j.oceaneng.2020.108556