TY - GEN
T1 - Model predictive control of low earth orbiting spacecraft with magneto-torquers
AU - Wood, Mark
AU - Chen, Wen Hua
AU - Fertin, Denis
PY - 2007
Y1 - 2007
N2 - The problem of attitude control using magnetic torque rods is addressed, in order to demonstrate predictive control as a suitable and effective technique of magnetic attitude control. The study addresses the key issues of magnetic field modeling, controller stability and implementation. Two controller designs are implemented, the first adopting an MPC approach with a constant magnetic field assumption, while the second method includes the true variation of the magnetic field within the control law. Both methods demonstrate significantly improved performance over PD control with the inclusion of the true magnetic field variation leading to the best results. Controller stability is considered with and without terminal penalty within the cost function. Floquet analysis demonstrates both methods to be stable, however the terminal penalty based method leads to a more stable controller.
AB - The problem of attitude control using magnetic torque rods is addressed, in order to demonstrate predictive control as a suitable and effective technique of magnetic attitude control. The study addresses the key issues of magnetic field modeling, controller stability and implementation. Two controller designs are implemented, the first adopting an MPC approach with a constant magnetic field assumption, while the second method includes the true variation of the magnetic field within the control law. Both methods demonstrate significantly improved performance over PD control with the inclusion of the true magnetic field variation leading to the best results. Controller stability is considered with and without terminal penalty within the cost function. Floquet analysis demonstrates both methods to be stable, however the terminal penalty based method leads to a more stable controller.
KW - Magnetic attitude control
KW - Model predictive control
KW - Time-varying systems
UR - http://www.scopus.com/inward/record.url?scp=43049172351&partnerID=8YFLogxK
U2 - 10.1109/CCA.2006.286071
DO - 10.1109/CCA.2006.286071
M3 - Conference article published in proceeding or book
AN - SCOPUS:43049172351
SN - 0780397959
SN - 9780780397958
T3 - Proceedings of the IEEE International Conference on Control Applications
SP - 2908
EP - 2913
BT - Proceedings of the 2006 IEEE International Conference on Control Applications
T2 - Joint 2006 IEEE Conference on Control Applications (CCA), Computer-Aided Control Systems Design Symposium (CACSD) and International Symposium on Intelligent Control (ISIC)
Y2 - 4 October 2006 through 6 October 2006
ER -