Comparative design of dual-stage actuator control systems for hard disk drives

Author

Lee, Seung-Hi ; Kim, Young-Hoon

Author_Institution

Microsyst. Lab., Samsung Adv. Inst. of Technol., Suwon, South Korea

Volume

3

fYear

2001

fDate

2001

Firstpage

2108

Abstract

This paper presents a comparative design of dual-stage actuator (DSA) control systems. Three design techniques-discrete-time sliding mode control, robust control using structured singular values, maximum bandwidth design with slew-rate control-are considered, which can be accomplished using almost the same control structures. A design strategy is first introduced. Then, each DSA control system is designed to realize it. Time and frequency responses of each control system are presented. Each DSA control system was compared from the view point of design, performance, and practical implementation

Keywords

disc drives; discrete time systems; electric actuators; frequency response; hard discs; machine control; robust control; variable structure systems; design; design strategy; discrete-time sliding mode control; dual-stage actuator control systems; frequency response; hard disk drives; implementation; maximum bandwidth design; performance; robust control; slew-rate control; structured singular values; time response; Actuators; Control design; Control systems; Disk drives; Frequency; Hard disks; Laboratories; Robust control; Servomechanisms; Sliding mode control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2001. Proceedings. ISIE 2001. IEEE International Symposium on

Conference_Location

Pusan

Print_ISBN

0-7803-7090-2

Type

conf

DOI

10.1109/ISIE.2001.932042

Filename

932042