TY - JOUR
T1 - Robust fault-tolerant saturated control for spacecraft proximity operations with actuator saturation and faults
AU - Li, Qi
AU - Yuan, Jianping
AU - Sun, Chong
N1 - Publisher Copyright:
© 2018 COSPAR
PY - 2019/3/1
Y1 - 2019/3/1
N2 - 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.
AB - 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.
KW - Actuator saturation and faults
KW - Autonomous rendezvous and docking
KW - Robust fault-tolerant control
KW - Unknown model parameters
UR - http://www.scopus.com/inward/record.url?scp=85057371221&partnerID=8YFLogxK
U2 - 10.1016/j.asr.2018.11.004
DO - 10.1016/j.asr.2018.11.004
M3 - 文章
AN - SCOPUS:85057371221
SN - 0273-1177
VL - 63
SP - 1541
EP - 1553
JO - Advances in Space Research
JF - Advances in Space Research
IS - 5
ER -