Improvement of the performance of hysteresis compensation in SMA actuators by using inverse Preisach model in closed — loop control system

被引:0
作者
Kyoung Kwan Ahn
Nguyen Bao Kha
机构
[1] University of Ulsan,School of Mechanical and Automotive Engineering
[2] University of Ulsan,Graduate School of Mechanical and Automotive Engineering
来源
Journal of Mechanical Science and Technology | 2006年 / 20卷
关键词
Preisach Model; Hysteresis; SMA Actuator; Compensation;
D O I
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中图分类号
学科分类号
摘要
The aim of this paper is to increase the performance of hysteresis compensation for Shape Memory Alloy (SMA) actuators by using inverse Preisach model in closed — loop control system. This is used to reduce hysteresis effects and improve accuracy for the displacement of SMA actuators. Firstly, hysteresis is identified by numerical Preisach model implementation. The geometrical interpretation from first order transition curves is used for hysteresis modeling. Secondly, the inverse Preisach model is formulated and incorporated in closed-loop PID control system in order to obtain desired current-to-displacement relationship with hysteresis reducing. The experimental results for hysteresis compensation by using this method are also shown in this paper.
引用
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页码:634 / 642
页数:8
相关论文
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