Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)
- 2003.06a
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- Pages.660-663
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- 2003
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- 2005-8446(pISSN)
Hysteresis Modeling and Control of Terfenol-D Actuator
Terfenol-D 액츄에이터의 히스테리시스 모델링과 제어
- Park, Y. W. (Mechatronics Eng. Dept. CNU) ;
- M. C. Lim (Graduate School, CN) ;
- Kim, D. Y. (LG Chemical)
- Published : 2003.06.01
Abstract
This paper proposes a systematic approach for an accurate control of the Terfenol-D actuator taking into account hysteresis, modeled by applying the classical Preisach operator with memory curve. A desired input displacement is calculated by using the hysteresis inverter, which is fed into the actuator. Then the PI compensator corrects the error between the commanded and actual displacements. Experiments with the step responses show that the PI controller settles in 70 ms and the hybrid controller in 20 ms. It means that the concurrent application of two control schemes is effective to control the actuator.