RBode plotを用いたHDD二段アクチュエータシステムの制御系最適化

抄録

We have developed a controller design method for dual-stage actuator systems in hard disk drives with Robust Bode (RBode) plot. The RBode plot represents robust performance criterion with gray area on the Bode plot. By using the RBode plot, control engineers can easily design a controller which satisfy a robust performance with visualized guidelines. In this study, we designed an H controller for the dual-stage actuator system, and an improved H controller with RBode plot. Simulation results for a track-control in HDD show the validity of the proposed method.