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http://dx.doi.org/10.5050/KSNVN.2007.17.9.805

A Robust Controller Design Method of the Fine Seek Control System with Velocity Disturbance  

Lee, Moon-Noh (동의대학교 컴퓨터공학과)
Shin, Jin-Ho (동의대학교 메카트로닉스공학과)
Kim, Seong-Woo (동의대학교 컴퓨터소프트웨어공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.17, no.9, 2007 , pp. 805-812 More about this Journal
Abstract
This paper present a robust controller design method based on the estimation of velocity disturbance to construct a robust fine seek control system. A loop gain adjustment algorithm is introduced to accurately estimate the velocity disturbance in spite of the uncertainties of fine actuator. A weighting function is optimally selected from a minimum fine seek open-loop gain, calculated by estimating the velocity disturbance. A robust fine seek controller is designed by considering a robust $H_{\infty}$ control problem using the weighting function. The proposed controller design method is applied to the fine seek control system of a DVD rewritable drive and is evaluated through the experimental results.
Keywords
Velocity Disturbance; Loop Gain Adjustment; Minimum Open-loop Gain; Weighting Function; Robust $H_{\infty}$ Control;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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