TY - GEN
T1 - Disturbance Separation-Based Antidisturbance Attitude Control for Flexible Liquid-Filled Spacecrafts
AU - Zhu, Baopeng
AU - Teng, Hao
AU - Meng, Yan
AU - Zhu, Yukai
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - Tightly coupled disturbances such as flexible vibration and liquid sloshing reduce the attitude control accuracy and stability of spacecrafts. The separation and thereby compensation of tightly coupled disturbances are crucial for improving attitude control performance. This paper investigates disturbance separation-based antidisturbance attitude control for flexible liquid-filled spacecrafts. First, based on the rigid-flexible-liquid interaction mechanism of spacecrafts, the flexible vibration disturbance and liquid sloshing disturbance are finely characterized, and a tightly coupled attitude dynamics model of a flexible liquid-filled spacecraft is established. Then, a disturbance separability criterion is established and two disturbance separability observers are designed to estimate the flexible vibration disturbance and the liquid shaking disturbance, respectively. Furthermore, a tightly coupled antidisturbance attitude control law is designed to accurately compensate for the flexible vibration disturbance and the liquid sloshing disturbance, thereby improving the attitude control accuracy and stability of spacecrafts. Finally, a numerical simulation is given to verify the validity of the proposed methodology.
AB - Tightly coupled disturbances such as flexible vibration and liquid sloshing reduce the attitude control accuracy and stability of spacecrafts. The separation and thereby compensation of tightly coupled disturbances are crucial for improving attitude control performance. This paper investigates disturbance separation-based antidisturbance attitude control for flexible liquid-filled spacecrafts. First, based on the rigid-flexible-liquid interaction mechanism of spacecrafts, the flexible vibration disturbance and liquid sloshing disturbance are finely characterized, and a tightly coupled attitude dynamics model of a flexible liquid-filled spacecraft is established. Then, a disturbance separability criterion is established and two disturbance separability observers are designed to estimate the flexible vibration disturbance and the liquid shaking disturbance, respectively. Furthermore, a tightly coupled antidisturbance attitude control law is designed to accurately compensate for the flexible vibration disturbance and the liquid sloshing disturbance, thereby improving the attitude control accuracy and stability of spacecrafts. Finally, a numerical simulation is given to verify the validity of the proposed methodology.
KW - Flexible liquid-filled spacecrafts
KW - disturbance observer-based control (DOBC)
KW - disturbance separation
KW - tightly coupled disturbances
UR - https://www.scopus.com/pages/publications/85200605788
U2 - 10.1109/FASTA61401.2024.10595312
DO - 10.1109/FASTA61401.2024.10595312
M3 - 会议稿件
AN - SCOPUS:85200605788
T3 - Proceedings of the 3rd Conference on Fully Actuated System Theory and Applications, FASTA 2024
SP - 1480
EP - 1485
BT - Proceedings of the 3rd Conference on Fully Actuated System Theory and Applications, FASTA 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd Conference on Fully Actuated System Theory and Applications, FASTA 2024
Y2 - 10 May 2024 through 12 May 2024
ER -