Abstract
Much effort on modeling, identification and tuning of control parameters are required to stabilize magnetic levitation systems because of their negative stiffness and non-linearity. The purpose of this study is to propose a new control which achieves the stability of the levitation system within the moving range without trial and error. In this paper, a controller consisting of a balanced current compensator and PD elements is introduced. Then the balanced current compensator and control parameters of the PD elements are designed using simple experimental data. Finally the stable levitation of the object is realized in an experimental one-degree-of-freedom system.
