Title :
A higher-order sliding mode controller design for spacecraft attitude tracking system
Author :
Yao Zhang ; Yuxin Zhao
Author_Institution :
Coll. of Autom., Harbin Eng. Univ., Harbin, China
Abstract :
In order to eliminate bad influence caused by parameter uncertainties and external disturbances in spacecraft tracking system, a higher-order sliding mode control strategy is proposed in this paper. Attitude control system is divided into fast loop and slow loop based on singular perturbation. The sign function is replaced by the norm-type switching function for the continuous virtual control in the slow loop. The fast loop consists of the integral fast terminal sliding mode control, the feedback control and the higher-order sliding mode control. Theoretical analysis and simulation results show strong robustness and weak chattering.
Keywords :
attitude control; control system synthesis; feedback; singularly perturbed systems; space vehicles; switching systems (control); uncertain systems; variable structure systems; attitude control system; continuous virtual control; feedback control; higher-order sliding mode controller design; norm-type switching function; parameter uncertainty; singular perturbation; spacecraft attitude tracking system; Attitude control; Convergence; Robustness; Sliding mode control; Space vehicles; Uncertainty; higher-order sliding mode; norm-type switching function; robustness; spacecraft attitude control;
Conference_Titel :
Mechatronics and Control (ICMC), 2014 International Conference on
Print_ISBN :
978-1-4799-2537-7
DOI :
10.1109/ICMC.2014.7231752
