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A Velocity Disturbance Estimation System for the Stable Fine Seek Control Using a Genetic Algorithm  

Jin, Kyoung Bog (School of Mechatronics Eng. KUT)
Shin, Jin-Ho (Mechatronics Eng. Dong-Eui University)
Lee, Moonnoh (Computer Eng. Dong-Eui University)
Publication Information
Journal of the Semiconductor & Display Technology / v.11, no.3, 2012 , pp. 13-18 More about this Journal
Abstract
This paper presents a velocity disturbance estimation system for the stable fine seek control using a genetic algorithm. To estimate accurately the velocity disturbance in spite of the uncertainties of fine actuator, the system utilizes an objective function to minimize the differences of the frequency characteristics between the nominal velocity control loop and the extremal velocity control loops. The objective function is considered by applying a genetic algorithm and the velocity disturbance is estimated by the measurable velocity, the adjusted velocity controller, and the fine actuator model. The proposed velocity disturbance estimation system is applied to the fine seek control system of a DVD recording device and is evaluated through the experimental results.
Keywords
Fine seek control system; velocity disturbance; genetic algorithm; minimum velocity loop gain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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