Application of a novel anti-windup scheme to a HDD-dual-stage actuator

Author

Herrmann, Guido ; Turner, Matthew C. ; Postlethwaite, Ian ; Guo, Guoxiao

Author_Institution

Data Storage Inst., Singapore, Singapore

Volume

1

fYear

2003

fDate

4-6 June 2003

Firstpage

743

Abstract

A novel discrete anti-windup technique is applied to a dual-stage actuator of an experimental hard disk drive (HDD) system. It is shown that this anti-windup technique can improve performance and retain stability of the dual-stage servo-system when the secondary actuator control signal saturates at its allowable design limits. Global stability is achieved despite saturation of both, the secondary actuator and the voice-coil-motor (VCM) actuator. The main contribution of the paper is the application of a theoretically sound anti-windup technique to an industrially relevant servo-system.

Keywords

actuators; compensation; control nonlinearities; disc drives; hard discs; linear matrix inequalities; servomechanisms; stability; suboptimal control; LMI; antiwindup scheme; control signal; controllers; discrete antiwindup technique; dual stage actuator; global stability; hard disk drive system; linear matrix inequalities; robustness; saturation; servosystem; voice coil motor actuator; Data engineering; Drives; Frequency; Hard disks; Hydraulic actuators; Low-frequency noise; Memory; Paper technology; Signal design; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2003. Proceedings of the 2003

ISSN

0743-1619

Print_ISBN

0-7803-7896-2

Type

conf

DOI

10.1109/ACC.2003.1239110

Filename

1239110