Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5005000 | ISA Transactions | 2011 | 8 Pages |
Abstract
This paper treats the problem of synchronized control of spacecraft formation flying (SFF) in the presence of input constraint and parameter uncertainties. More specifically, backstepping based robust control is first developed for the total 6 DOF dynamic model of SFF with parameter uncertainties, in which the model consists of relative translation and attitude rotation. Then this controller is redesigned to deal with the input constraint problem by incorporating a command filter such that the generated control could be implementable even under physical or operating constraints on the control input. The convergence of the proposed control algorithms is proved by the Lyapunov stability theorem. Compared with conventional methods, illustrative simulations of spacecraft formation flying are conducted to verify the effectiveness of the proposed approach to achieve the spacecraft track the desired attitude and position trajectories in a synchronized fashion even in the presence of uncertainties, external disturbances and control saturation constraint.
Related Topics
Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
Yueyong Lv, Qinglei Hu, Guangfu Ma, Jiakang Zhou,