- 안정적인 조동 검색을 위한 강인 트랙 추종 제어
- ㆍ 저자명
- 이문노,진경복,Lee. Moon-Noh,Jin. Kyoung-Bog
- ㆍ 간행물명
- 한국소음진동공학회논문집
- ㆍ 권/호정보
- 2010년|20권 3호|pp.279-286 (8 pages)
- ㆍ 발행정보
- 한국소음진동공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this paper, we provide a robust track-following controller design method for the stable coarse seek control. Due to the inaccurate velocity control during a coarse seek, the shake of fine actuator is generated and thus a gain-up track-following control is required to complete stably the coarse seek. To this end, a loop gain adjustment algorithm is introduced to estimate accurately the shake of fine actuator. A weighting function can be properly selected from a minimum tracking gain-up open-loop gain, calculated from the estimated shake quantity of fine actuator. A robust tracking gain-up controller is designed by considering a robust $H_{infty}$ control problem using the weighting function. The proposed design method is applied to the coarse seek control system of an optical rewritable drive and is evaluated through the experimental results.