A Linear Time-Varying Control Scheme and Its Application to a Hard Disk Drive Servo System

A Linear Time-Varying Control Scheme and Its Application to a Hard Disk Drive Servo System

A novel linear time-varying (LTV) control scheme is developed to perform short/mid-span seeking and track- following. This new scheme uses the concept behind the conventional composite nonlinear feedback (CNF) scheme to exhibit fast and smooth seeking. Having two nonlinear time components that are i...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Chin Kwan Thum, Chunling Du, Chen, B.M., Eng Hong Ong, Kim Piew Tan
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Control systems
Displays
Feedback
Hard disks
Nonlinear control systems
Optimal control
Performance gain
Robust control
Servomechanisms
Time varying systems
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A novel linear time-varying (LTV) control scheme is developed to perform short/mid-span seeking and track- following. This new scheme uses the concept behind the conventional composite nonlinear feedback (CNF) scheme to exhibit fast and smooth seeking. Having two nonlinear time components that are independent of seek length to adjust the feedback gain, the proposed scheme displays a notably better performance robustness against variations in seek length during short/mid-span seeking as well as 25.3% more head positioning accuracy during track-following over the conventional CNF control.
ISSN:1553-572X
DOI:10.1109/IECON.2007.4459915