Minimum destructive interference design of dual-stage control systems for hard disk drives

Author

Lee, Seung-Hi ; Kim, Young-Hong ; Chung, Chung Choo

Author_Institution

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

Volume

5

fYear

2001

fDate

2001

Firstpage

4699

Abstract

This paper presents a minimum destructive interference design of dual-stage actuator (DSA) control systems. A measure of destructive interference between voice coil motor and MA is proposed. In the DSA control design, the measure of destructive interference is minimized to attain satisfactory time and frequency responses. Robustness analysis is conducted using the structured singular value method on the resulting DSA control system with linear fractional transformation unmodeled dynamics uncertainties

Keywords

disc drives; dynamics; electric actuators; frequency response; hard discs; stability; time optimal control; transforms; dual-stage actuator; frequency responses; hard disk drives; linear fractional transformation; minimum destructive interference; proximate-time-optimal control; robustness; unmodeled dynamics; voice coil motor; Actuators; Bandwidth; Control systems; Frequency measurement; Hard disks; Interference; Open loop systems; Servomechanisms; Sliding mode control; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2001. Proceedings of the 40th IEEE Conference on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-7061-9

Type

conf

DOI

10.1109/.2001.980948

Filename

980948