Practical implementation of a novel anti-windup scheme in a HDD-dual-stage servo-system

G Herrmann, MC Turner, I Postlethwaite, G Guo

Research output: Contribution to journalArticle (Academic Journal)peer-review

93 Citations (Scopus)

Abstract

Two novel discrete anti-windup (AW) techniques are applied to a dual-stage actuator of an experimental hard disk drive system. The techniques, one low order, the other full order, employ convex l/sub 2/-performance constraints in combination with linear-matrix-inequality-optimization methods. It is shown that the AW compensators can improve the performance of the nominal dual-stage servo-system when the secondary actuator control signal saturates at its allowable design limits. Also, stability is achieved despite saturation of both the secondary actuator and the voice-coil-motor actuator. Practical results show that the performance of each AW compensator is superior to another well-known ad-hoc AW technique, the internal model control AW scheme. The main contribution of the paper is the application of theoretically rigorous AW methods to an industrially relevant servo system.
Translated title of the contributionPractical implementation of a novel anti-windup scheme in a HDD-dual-stage servo-system
Original languageEnglish
Pages (from-to)580 - 592
Number of pages13
JournalIEEE/ASME Transactions on Mechatronics
Volume9 (3)
DOIs
Publication statusPublished - Sep 2004

Bibliographical note

Publisher: ASME Design Engineering Division; IEEE Industrial Electronics Society; ASME Dynamic Systems and Control Division; IEEE Robotics and Automation Society

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