11304 Libration Control of Tethered Satellite System for Space Debris Capture

In this paper, libration control of tethered satellite system (TSS) for capture space debris is described. Although many studies have been carried out for this problem, there are few papers adopting feedback control. In addition, in most of all those studies, the control input was the tether tension. Contrary to those past studies, in this study, we design a linear quadratic regulator (LQR) based controller in which the acceleration of the tether deployment or retrieval is treated as the control input. The TSS is regarded as dumbbell model, and it is assumed that no propellant is used. The effectiveness of the control law is verified by many numerical simulations.