Title :
Improved model predictive control for virtual satellite attitude control
Author :
Bai, Xueliang ; Hagel, Philipp ; Wu, Xiaofeng ; Xiao, Size
Author_Institution :
Sch. of Aerosp., Mech., & Mechatron. Eng., Univ. of Sydney, Sydney, NSW, Australia
Abstract :
For virtual satellites, the main challenge for the attitude determination and control module is to maintain the performance with weak wireless inter-satellite links (ISL). Such weak ISL leads to large data loss, high bit error rate, and long transmission delay during the real-time control process, which beyond the competence of traditional linear control algorithms. In this paper a constrained model predictive controller with learning observer is developed. The simulation results provided performance comparison between MPC and PD controller and showed the advantage of MPC controller for this situation.
Keywords :
artificial satellites; attitude control; delays; error statistics; learning systems; linear systems; observers; predictive control; satellite links; MPC controller; attitude determination; bit error rate; constrained model predictive controller; data loss; improved model predictive control; learning observer; linear control algorithms; real-time control process; transmission delay; virtual satellite attitude control; weak ISL; weak wireless inter-satellite links; Attitude control; Mathematical model; Observers; Prediction algorithms; Satellites; Torque; Wireless communication; Attitude control; MPC; Satellite modeling; Virtual satellite;
Conference_Titel :
Control Conference (CCC), 2012 31st Chinese
Conference_Location :
Hefei
Print_ISBN :
978-1-4673-2581-3