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

被引：3
|
作者：
Boettcher, Uwe [1 ]
de Callafon, Raymond A. [1 ]
Talke, Frank E. [1 ]
机构：
[1] Univ Calif San Diego, Ctr Magnet Recording Res, 9500 Gilman Dr, La Jolla, CA 92093 USA
来源：
PROCEEDINGS OF THE 48TH IEEE CONFERENCE ON DECISION AND CONTROL, 2009 HELD JOINTLY WITH THE 2009 28TH CHINESE CONTROL CONFERENCE (CDC/CCC 2009) | 2009年
关键词：
TRACK-FOLLOWING CONTROL; IDENTIFICATION; MICROACTUATOR; COMPENSATION; DESIGN;
D O I：
10.1109/CDC.2009.5399480
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
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 Ho, 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.
引用
收藏
页码：8316 / 8321
页数：6
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