제어로봇시스템학회:학술대회논문집
- 2001.10a
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- Pages.66.3-66
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- 2001
Precision Position Control of Piezoactuator Using Inverse Hysteresis Model and PID control
- Kim, jung yong (Univ. of Ulsan) ;
- Lee, byung ryong (Univ. of Ulsan) ;
- Yang soon yong (Univ. of Ulsan) ;
- Ahn kyung kwan (Univ. of Ulsan)
- Published : 2001.10.01
Abstract
A piezoelectric actuator yields hysteresis effect due to its composed ferroelectric. Hysteresis nonlinearty is neglected when a piezoelectric actuator moves with short stroke. However when it moves with long stroke and high frequency, the hysteresis nonlinearty can not be neglected. The hysteresis nonlinearty of piezoelectric actuator degrades the control performance in precision position control. In this paper, in order to improve the control performance of piezoelectric actuator, an inverse modeling scheme is proposed to compensate the hysteresis nonlinearty problem. And feedforward - feedback controller is proposed to give a good tracking performance. The Feedforward controller is inverse hysteresis model ,and PID control is used ...
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