DocumentCode
325366
Title
Multi-rate controller for hard disk drive with redesign of state estimator
Author
Hara, Takeyori ; Tomizuka, Masayoshi
Author_Institution
File Memory Lab., Fujitsu Labs. Ltd., Tokyo, Japan
Volume
5
fYear
1998
fDate
21-26 Jun 1998
Firstpage
3033
Abstract
This paper describes a new multi-rate controller for hard disk drives, which has a modified state estimator to correct estimated states not only at measurement instances of the position error signal but also at every control instance of updating the control input. This modification makes the control input smoother compared to the conventional multi-rate scheme. The effectiveness of the modified scheme is demonstrated by experiments
Keywords
continuous time systems; electric drives; hard discs; multivariable control systems; position control; servomechanisms; state estimation; continuous time systems; hard disk drive; multirate controller; position control; servomechanism; state estimation; Control systems; Equations; Error correction; Estimation error; Frequency; Hard disks; Open loop systems; Sampling methods; Servomechanisms; State estimation;
fLanguage
English
Publisher
ieee
Conference_Titel
American Control Conference, 1998. Proceedings of the 1998
Conference_Location
Philadelphia, PA
ISSN
0743-1619
Print_ISBN
0-7803-4530-4
Type
conf
DOI
10.1109/ACC.1998.688414
Filename
688414
Link To Document