Affiliation of Author(s):航空学院
Journal:ISA TRANSACTIONS
Key Words:Distributed control Finite-time tracking Flexible spacecraft Under-actuated Undirected graph
Abstract:The paper presents a distributed finite-time controller for multiple under-actuated spacecraft with flexible appendages to track a virtual leader with stationary states under an undirected communication graph. Each spacecraft of concern is simplified as a free-floating hub-beam system, which is an under actuated Euler-Lagrange system by nature since only the hub is driven. In the undirected communication graph, it is assumed that only one spacecraft can receive the information from the virtual leader. A distributed finite-time control law is presented for such a multi-agent system. The closed-loop system is proven to converge to the desired states within a finite time via Lyapunov theory and homogeneous method. Finally, a comparison is made between the proposed controller and the PD controller to show the better performance of the proposed controller. (C) 2017 ISA. Published by Elsevier Ltd. All rights reserved.
ISSN No.:0019-0578
Translation or Not:no
Date of Publication:2017-07-01
Co-author:Ti CHEN,70200091,Jin Dongping
Correspondence Author:胡海岩,70200091,Hao Wen