Abstract
In a factory, a continuous thin steel plate subjected to iron and steel processes supported by rollers tends to experience plate vibrations that lower the quality of the surface finish. In the plating process, rollers negligibly support the steel plates. Therefore, plating nonuniformity due to the generation of vibrations and other factors prevents an increase in productivity. To solve this problem, we developed a noncontact guide system in which electromagnetic and permanent magnet forces are applied at the edges of the steel plates. However, it will be necessary to develop a control system that takes into consideration various parameter errors, such as nonuniformity of resistance change for an actual continuous thin steel plate process by heat of electromagnet. In this study, we confirm the suppressive effect of a sliding mode control theory that has robustness in mass variation.
