永久磁石と電磁石を併用した走行磁性体のロバスト非接触案内制御

概要

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In a typical factory, a continuous thin steel plate subjected to iron and steel processes and supported by rolls tends to undergo plate vibrations that lower the quality of surface finish. In the plating process, the steel plate is conveyed 20-50m in the vertical direction for drying, during which the steel plate is negligibly supported by rollers and other mechanisms. Therefore, plating nonuniformity due to the generation of vibration and other factors prevents an increase in productivity. To solve this problem, we have developed a noncontact guide system in which electromagnetic forces are applied to the edges of the steel plate. The control performance of replacing the electromagnet with a permanent magnet that has no running cost has been examined. However, the deleterious effect of the negative spring force of a permanent magnet has not been examined to date. In this study, we examine the possibilities for the robustness of the negative spring force of a permanent magnet using the sliding-mode-control theory.
東海大学の論文