Title :
Design of a VSC Controller of Reduced Inputs for Satellite Formation Flying
Author :
Zhaokui, Wang ; Yulin, Zhang
Author_Institution :
Tsinghua Univ., Beijing
Abstract :
A modified linear equation of formation is given as the control system model of formation keeping control, which includes the influences of J2 perturbations. Based on system performance analysis of the control model, a control scheme was proposed which using thrusts without radial direction. Guarantee cost control (GCC) method based on LMI method was introduced to design the sliding surface, then a VSC control law for discrete-time linear system with mismatched uncertainty was given. A numeric simulation was given after a design example for LEO satellite formation to validate the robust of the control algorithm.
Keywords :
aerospace control; artificial satellites; control system synthesis; discrete time systems; linear matrix inequalities; linear systems; motion control; position control; J2 perturbations; LEO satellite formation; LMI method; VSC controller; discrete-time linear system; formation keeping control; guarantee cost control; linear equation of formation; satellite formation flying; Control system analysis; Control system synthesis; Control systems; Costs; Equations; Linear systems; Performance analysis; Satellites; Sliding mode control; System performance; Formation flying; Formation keeping; Mismatched condition; Sliding mode control;
Conference_Titel :
Control Conference, 2007. CCC 2007. Chinese
Conference_Location :
Hunan
Print_ISBN :
978-7-81124-055-9
Electronic_ISBN :
978-7-900719-22-5
DOI :
10.1109/CHICC.2006.4346951
