Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2003.11a
- /
- Pages.1101-1106
- /
- 2003
- /
- 1598-2548(pISSN)
Repetitive control design for an ODD focusing servo system
반복 제어기를 이용한 광디스크 포커스 제어
- Lee, Jong-Min (Dept.of Mechanical Engineering, Graduate School of Yonsei University) ;
- Park, Jin-Young ;
- Park, Tae-Wook ;
-
Yang, Hyun-Seok
;
-
Park, Young-Pil
(Dept.of Mechanical Engineering, Yonsei University)
- Published : 2003.11.01
Abstract
As the disk in the ODD rotates, disturbances acting on the ODD servo system generally have periodic components. Such disturbances can make the system unstable and make the controller hard to work. The repetitive controller can be the solution of the periodic disturbances by making the periodic control signals. In this paper repetitive controller is proposed that make the control signal follow the periodic disturbances. A low pass filter, which can make the system stable, is proposed by the simple stability conditions. We will show the performance of the repetitive controller in actual commercial system. Simulation and experimental results will be given as the evidences