Internal Model Control for Shape Memory Alloy Actuators using Fuzzy Based preisach Model
Nguyen Bao Kha; Kyoung Kwan Ahn; Young Jin Yum; Rahman, S.M.; Jin Hyuk Son
Mechatronics and Automation, 2007. ICMA 2007. International Conference on
Volume , Issue , 5-8 Aug. 2007 Page(s):2575 - 2580
Digital Object Identifier 10.1109/ICMA.2007.4303962
Summary:This paper investigates a possible application of Preisach model to control Shape Memory Alloy (SMA) actuators using an internal model control strategy. The developed strategy consists in including the Preisach hysteresis model of SMA actuator and the inverse Preisach model within the control structure. In this work, an extrema input hystory and a fuzzy inference is utilized to replace the classical Preisach model. This allows to reduce a large amount of experimental parameters and computation time of the classical Preisach model. To demonstrate the effectiveness of the proposed controller in improving control performance and hysteresis compensation of SMA actuators, experimental results from real time control are presented.
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