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

journal contribution
posted on 2023-06-09, 07:15 authored by Kyoung Kwan Ahn, Bao Kha NguyenBao Kha Nguyen
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.

History

Publication status

  • Published

Journal

International Journal of Control Automation and Systems

ISSN

1598-6446

Publisher

Springer Verlag

Issue

6

Volume

4

Page range

756-762

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2017-07-17

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