Following Control of Hard Disk Drives Using Multi-Rate H-infinity Control —Experimental Study—

Masatoshi Takiguchi; Mituo Hirata; Kenzo Nonami

doi:10.11499/sicep.2002.0.658.0

SICE Annual Conference 2002

DOI https://doi.org/10.11499/sicep.2002.0.658.0

Conference information

Host: The Society of Instrument and Control Engineers

Co-host: IEEE/Industiral Electronic Society, IEEE/Robotics and Automation Society, IEEE/Control System Society

Following Control of Hard Disk Drives Using Multi-Rate H-infinity Control

—Experimental Study—

Masatoshi Takiguchi, Mituo Hirata, Kenzo Nonami

Author information

Keywords: hard disk drive, following control, multi-rate control, discrete-time H_∞ control

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 658

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Abstract

In the head-positioning control of hard disk drives, the measurement sampling period cannot be changed. However, it is possible to select control period arbitrarily. Therefore, multi-rate control can improve the control performance without changing the measurement sampling period. Thus, this paper propose a design method of multi-rate head-positioning controller for hard disk drives using H_∞ control based on discrete-time lifting technique. The effectiveness of the method has been shown by simulation and experimental results.

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