TY - GEN
T1 - A novel disturbance observer for attitude control of flexible spacecraft
AU - Wang, Zhaohui
AU - Jia, Yinghong
AU - Xu, Shijie
AU - Zhang, Guoqi
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/9/27
Y1 - 2016/9/27
N2 - This paper introduce the high accuracy attitude control method of spacecraft with flexible appendages. It is known that the unwanted vibration modes of flexible appendages will degrade the performance of the flexible spacecraft attitude control system. In this paper, the vibration modes are considered as an 'equivalent' disturbance, and a novel nonlinear disturbance observer is designed to estimate this 'equivalent' disturbance. A disturbance feed-forward compensate controller (DFCC) is designed based on the nonlinear disturbance observer and the feedback linearization control to improve the performance of attitude control system. The flexible spacecraft is controlled by the actuator locate on the central rigid body. Simulation results investigate that the DFCC designed in this paper improved the performance of the attitude control system.
AB - This paper introduce the high accuracy attitude control method of spacecraft with flexible appendages. It is known that the unwanted vibration modes of flexible appendages will degrade the performance of the flexible spacecraft attitude control system. In this paper, the vibration modes are considered as an 'equivalent' disturbance, and a novel nonlinear disturbance observer is designed to estimate this 'equivalent' disturbance. A disturbance feed-forward compensate controller (DFCC) is designed based on the nonlinear disturbance observer and the feedback linearization control to improve the performance of attitude control system. The flexible spacecraft is controlled by the actuator locate on the central rigid body. Simulation results investigate that the DFCC designed in this paper improved the performance of the attitude control system.
UR - https://www.scopus.com/pages/publications/84991627505
U2 - 10.1109/WCICA.2016.7578273
DO - 10.1109/WCICA.2016.7578273
M3 - 会议稿件
AN - SCOPUS:84991627505
T3 - Proceedings of the World Congress on Intelligent Control and Automation (WCICA)
SP - 297
EP - 302
BT - Proceedings of the 2016 12th World Congress on Intelligent Control and Automation, WCICA 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th World Congress on Intelligent Control and Automation, WCICA 2016
Y2 - 12 June 2016 through 15 June 2016
ER -