Improvement Method for Control System in HDD with Dual-Stage Actuator Using Robust Controller Bode Plot
Year: 2025
Type: article
Abstract: Hard disk drives (HDDs), which store vast amounts of data, are crucial for AI data centers. In this paper, we propose an improved method for the magnetic-head positioning control system in HDDs based on the Robust Controller Bode (RCBode) plot. This method enables the straightforward design of loop-shaping filters that satisfy robust performance using only classical control knowledge. This study extends the design method with the RCBode plot for Dual-Input Single-Output (DISO) systems and applies it to the control design of dual-stage actuator HDDs. The effectiveness of the proposed approach was verified using HDD benchmark problems, yielding validation results equivalent to actual experimental outcomes.
Source: IFAC-PapersOnLine
Authors: Ryutaro Tokuyama, Takenori Atsumi
Institution: Chiba Institute of Technology
Language: English
Subfield: Control and Systems Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
Award: 機構・制御系統合化設計の高度化と次世代ＨＤＤへの応用
OpenAlex ID: W4415943728