소형위성 카메라의 영상안정화를 위한 초점면부 보정장치 제어

다국어 초록 (Multilingual Abstract)

In this paper, micro-position control of focal plane compensation device that applicable to the small satellites has conducted. The device actuated by stacked type piezoelectric actuator that can move fast and infinitesimally. However, this actuator has a hysteresis so that It is difficult to modeling mathematically. Therefore, mathematical modeling has been practiced by using MATLAB system identification toolbox and the device requires four models and PID controllers for covering 0~50Hz of input frequency range. According to bode plots of control systems and control simulations, a controller based on 50Hz model, one of four PID controllers, has excellent performance for 0~50Hz range than that of others. In addition, the simulation results is verified by experimental results. Position control has been successful and the maximum output error is ± 1.2㎛.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 초점면부 보정장치의 모델링
• 3. 제어 시뮬레이션 및 실험
• 4. 결론
• References