Title :
Robust attitude control for spacecraft
Author :
Liang, Yew-Wen ; Chu, Tzu-Chiang ; Cheng, Chiz-Chung
Author_Institution :
Dept. of Electr. & Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The paper deals with the spacecraft attitude tracking problems in the presence of model uncertainties and external disturbances. A modified VSC design scheme is proposed by the use of variable structure control (VSC) design technique. These modified VSC laws are continuous, which are shown able to alleviate the chattering drawback inherited from sign-type VSC controllers and enhance the uniformly ultimate boundedness performance suffered by saturation-type ones to asymptotic stability level. Numerical simulations are also given to demonstrate the benefits of the proposed VSC scheme.
Keywords :
asymptotic stability; attitude control; control nonlinearities; control system synthesis; dynamics; kinematics; robust control; space vehicles; variable structure systems; asymptotic stability; chattering; external disturbances; model uncertainties; robust attitude control; spacecraft attitude tracking; uniformly ultimate boundedness performance; variable structure control design technique; Aerodynamics; Attitude control; Control engineering; Feedback; Numerical simulation; Robust control; Space technology; Space vehicles; Uncertainty; Wheels;
Conference_Titel :
American Control Conference, 2002. Proceedings of the 2002
Print_ISBN :
0-7803-7298-0
DOI :
10.1109/ACC.2002.1023207
