International Journal of Fuzzy Logic and Intelligent Systems

Korean Institute of Intelligent Systems (한국지능시스템학회)
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The Seek Control Design with Gain-Scheduling in Hard Disk Drives

  • Hwang, Eun-Ju (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Hyun, Chang-Ho (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Park, Mig-Non (School of Electrical and Electronic Engineering, Yonsei University)
  • Received : 2011.02.10
  • Accepted : 2011.02.25
  • Published : 2011.03.25
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Abstract

The increased disk rotational velocity to improve the data transfer rate has raised up many serious problems in its servo control system which should control the position and velocity of a spot relative to a rotating disk. This paper proposes gain-scheduling-based track-seek control for single stage actuator of hard disk drives. Gain scheduling is a technique that can extend the validity of the linearization approach to a range of operating points and one of the most popular approaches to nonlinear control design. The proposed method schedules controller gains to improve the transient response and minimize overshoot during the functions of the read/write head positioning servomechanism for the seek control. The validity of the proposed method is demonstrated through stability analysis and simulation results.

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References

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