724 鋼板の磁気浮上システム : 水平方向位置決め性能の改善

概要

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When sheet steel travels at high speed in a processing facility, rollers are usually used as supporters. However, when rollers are used, deterioration caused by cracks and exfoliation in the process of coating or gilding is possible. The electromagnetic levitation techniques can solve many problems in these conveyance modes of sheet steel. The authors has proposed a magnetic levitation control system for sheet steel and carried out an experiment on digital control. However, there is no horizontal restraining force on the only levitation control system. Then, the electromagnets were installed in order to control of horizontal position of the sheet steel. This system has no current feedback, so we redesigned it with current feedback in this study. To verify the usefulness of the controller, a digital control experiment were performed for the steel plate. As a result, an excellent futher control performance for the levitating steel plate was obtained.
2002-03-14