Quasi-static panel deployment and retraction using electromagnetic force in satellite missions

抄録

This research proposes a novel control technique for a new panel quasi-static deployment and retraction using electromagnetic force. This panel system is modeled using multibody dynamics for numerical simulations. Although electromagnetic deployment has many beneficial points, it still has a major technical issue. This issue is that vibrations on panels persists for a long time, and hence its motion does not converge quickly. To eliminate or dampen these vibrations, we propose both feed-forward and feed-back control methods. These methods can reduce convergence time of deployment motion by at most 60 percent. Additionally, in order to realize feed-back control, it is needed to estimate the state variables of panels, that is, the angle of the panels. For that purpose, we introduce a new approach to determine the angles which utilizes the electromagnetic field generated by the deployment system. This new method accomplishes the determination of the angles to an accuracy of at worst 4 degrees and on average 1 degree.