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

Ahn, Kyoung Kwan and Nguyen, Bao Kha (2006) Improvement of the performance of hysteresis compensation in SMA actuators by using inverse Preisach model in closed — loop control system. Journal of Mechanical Science and Technology, 20 (5). pp. 634-642. ISSN 1738-494X

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Abstract

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.

Item Type: Article
Keywords: Preisach Model, Hysteresis, SMA Actuator, Compensation
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology
T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Depositing User: Bao Kha Nguyen
Date Deposited: 17 Jul 2017 08:58
Last Modified: 17 Jul 2017 08:58
URI: http://sro.sussex.ac.uk/id/eprint/69305
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