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[학술저널]

필터 삽입에 의한 외란 관측기의 성능 향상과 하드디스크 장치에의 적용

  • 학술저널

필터 삽입에 의한 외란 관측기의 성능 향상과 하드디스크 장치에의 적용

Enhanced Performance of Disturbance Observer by Embedding a Filter and Its Application to Hard Disk Drive

하종수(서울대학교) 박경훈(서울대학교) 심형보(서울대학교)

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초록

In this paper, we present a new control structure which is obtained by adding an appropriately designed filter to a conventional disturbance observer. The proposed controlled system preserves advantages of a system with the conventional disturbance observer; disturbance rejection and nominal performance recovery. In particular, by embedding the filter, the disturbance rejection performance is enhanced compared with that of the classical disturbance observer-based controlled system. Moreover, we suggest a condition for the robust internal stability of the considered system in this paper. Simulation results regarding an effect of relatively high-frequency disturbance on hard disk drive are also presented.

목차

Abstract
I. 서론
II. 사전 지식
III. 본론
IV. 모의 실험
V. 결론
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