Robust fault-tolerant saturated control for spacecraft proximity operations with actuator saturation and faults

作     者：Li, Qi Yuan, Jianping Sun, Chong 

作者机构：Natl Key Lab Aerosp Flight Dynam Xian 710072 Shaanxi Peoples R China Northwestern Polytech Univ Sch Astronaut Xian 710072 Shaanxi Peoples R China 

出 版 物：《ADVANCES IN SPACE RESEARCH》 (空间研究进展)

年 卷 期：2019年第63卷第5期

页      面：1541-1553页

核心收录：

学科分类：08[工学] 0708[理学-地球物理学] 0706[理学-大气科学] 0704[理学-天文学] 0825[工学-航空宇航科学与技术] 

基　　金：National Natural Science Foundation of China [11572248  61690211] 

主　　题：Autonomous rendezvous and docking Robust fault-tolerant control Unknown model parameters Actuator saturation and faults 

摘      要：In this paper, the motion control problem of autonomous spacecraft rendezvous and docking with a tumbling target in the presence of unknown model parameters, external disturbances, actuator saturation and faults is investigated. Firstly, a nonlinear six degree-of-freedom dynamics model is established to describe the relative motion of the chaser spacecraft with respect to the tumbling target. Subsequently, a robust fault-tolerant saturated control strategy with no precise knowledge of model parameters and external disturbances is proposed by combining the sliding mode control technique with an adaptive methodology. Then, within the Lyapunov framework, it is proved that the designed robust fault-tolerant controller can guarantee the relative position and attitude errors converge into small regions containing the origin. Finally, numerical simulations are performed to demonstrate the effectiveness and robustness of the proposed control strategy. (C) 2018 COSPAR. Published by Elsevier Ltd. All rights reserved.