TY - GEN
T1 - On-orbit identification of disturbance torques acting on satellite with rotating payloads
AU - Chen, Maoliang
AU - Liu, Yingying
AU - Lei, Jing
AU - Zhou, Jun
PY - 2009
Y1 - 2009
N2 - This paper presents an approach to improve the stability of three-axis stabilized satellite with rotating payloads from a disturbance identification perspective. Based on steady-state output-only and the system transfer function, the unknown external and internal disturbance torques are identified in a closed loop without persistent excitation. The modified eigensystem identification algorithm(ERA) and the least-squares(LSM) method are employed to obtain the complete models of the disturbance torques. Finally, a feedforward control algorithm is proposed to achieve on-line compensation for the identified disturbance torques. Simulation results show that the approach proposed in this paper can reject the unknown and unwanted disturbance torques effectively, and improve the control performance of satellite with rotating payloads.
AB - This paper presents an approach to improve the stability of three-axis stabilized satellite with rotating payloads from a disturbance identification perspective. Based on steady-state output-only and the system transfer function, the unknown external and internal disturbance torques are identified in a closed loop without persistent excitation. The modified eigensystem identification algorithm(ERA) and the least-squares(LSM) method are employed to obtain the complete models of the disturbance torques. Finally, a feedforward control algorithm is proposed to achieve on-line compensation for the identified disturbance torques. Simulation results show that the approach proposed in this paper can reject the unknown and unwanted disturbance torques effectively, and improve the control performance of satellite with rotating payloads.
KW - Disturbance torques identification
KW - Feedforward control
KW - Least-squares method(LSM)
KW - Modified eigensystem realization algorithm(ERA)
KW - Rotating payloads
UR - http://www.scopus.com/inward/record.url?scp=77649174107&partnerID=8YFLogxK
U2 - 10.1109/ICMA.2009.5246739
DO - 10.1109/ICMA.2009.5246739
M3 - 会议稿件
AN - SCOPUS:77649174107
SN - 9781424426935
T3 - 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009
SP - 1342
EP - 1346
BT - 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009
T2 - 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009
Y2 - 9 August 2009 through 12 August 2009
ER -