Position control of shape memory alloy actuators using self tuning fuzzy PID controller

Ahn, Kyoung Kwan and Nguyen, Bao Kha (2006) Position control of shape memory alloy actuators using self tuning fuzzy PID controller. International Journal of Control Automation and Systems, 4 (6). pp. 756-762. ISSN 1598-6446

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Abstract

Shape Memory Alloy (SMA) actuators, which have the ability to return to a predetermined shape when heated, have many potential applications such as aeronautics, surgical tools, robotics and so on. Although the conventional PID controller can be used with slow response systems, there has been limited success in precise motion control of SMA actuators, since the systems are disturbed by unknown factors beside their inherent nonlinear hysteresis and changes in the surrounding environment of the systems. This paper presents a new development of a SMA position control system by using a self-tuning fuzzy PID controller. This control algorithm is used by tuning the parameters of the PID controller thereby integrating fuzzy inference and producing a fuzzy adaptive PID controller, which can then be used to improve the control performance of nonlinear systems. The experimental results of position control of SMA actuators using conventional and self-tuning fuzzy PID controllers are both included in this paper.

Item Type: Article
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 13:28
Last Modified: 17 Jul 2017 13:28
URI: http://sro.sussex.ac.uk/id/eprint/69304
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