Title :
Nonlinear Attitude Control of Flexible Spacecraft with Scissored Pairs of Control Moment Gyros
Author :
Fan, Jixiang ; Zhou, Di
Author_Institution :
Dept. of Control Sci. & Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
Dynamic equations describing the attitude motion of flexible spacecraft with scissored pairs of control moment gyroscopes are established. A nonlinear controller is designed to drive the flexible spacecraft to implement three-axis large-angle attitude maneuvers with the vibration suppression. Singularity of three orthogonally mounted scissored pairs of control moment gyros is analyzed. A new moore-penrose steering law is designed based on the synchronization constraint of gimbal angles. To improve the synchronization performance, an adaptive nonlinear controller is designed for each pairs of control moment gyros. Simulation results show the validity of the controllers and the steering law.
Keywords :
adaptive control; attitude control; control system synthesis; gyroscopes; nonlinear control systems; space vehicles; steering systems; vibration control; adaptive nonlinear controller; attitude motion; control moment gyros; flexible spacecraft; gimbal angle; moore-penrose steering law; nonlinear attitude control; synchronization constraint; vibration suppression; Attitude control; Equations; Mathematical model; Space vehicles; Symmetric matrices; Synchronization; Torque; attitude control; flexible spacecraft; nonlinear control;
Conference_Titel :
Pervasive Computing Signal Processing and Applications (PCSPA), 2010 First International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-8043-2
Electronic_ISBN :
978-0-7695-4180-8
DOI :
10.1109/PCSPA.2010.179
