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2009
IEEE

Data based modeling and control of a dual-stage actuator hard disk drive

11 years 10 months ago
Data based modeling and control of a dual-stage actuator hard disk drive
— A data-based approach is presented for modeling and controller design of a dual-stage servo actuator in a hard disk drive. The servo actuator in this hard disk drive consists of a conventional voice coil motor and a piezo-electrically actuated suspension. A weighted Hankel matrix based realization algorithm that uses frequency domain data is applied to estimate a discrete-time model of the voice coil motor and the piezoelectric actuator. Based on the discrete-time models, different dual-stage track-following controllers were designed using classic and H∞ loop shaping techniques. The controllers were implemented in real-time in the investigated hard disk drive. A stable feedback control and good agreement between measurement and simulated results show the promising result of data based modeling and control.
Uwe Boettcher, Raymond A. de Callafon, Frank E. Ta
Added 21 Jul 2010
Updated 21 Jul 2010
Type Conference
Year 2009
Where CDC
Authors Uwe Boettcher, Raymond A. de Callafon, Frank E. Talke
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