DYNAMICS AND FUZZY CONTROL OF A LEVITATED PARTICLE

This paper deals with the control in both horizontal and vertical dire ctions of a nonlinear magnetic spherical particle suspension. A pair o f horizontal electromagnets were added to the typical magnetic levitat ion system in order to handle the horizontal unexpected displacements of the particle. A fuzzy logic controller was designed to bring the pa rticle to the operating location situated on the symmetry axis. Simula tions with different initial position conditions of the particle are p rovided. It was shown that the controller has a good behavior for almo st any initial conditions.