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Open AccessArticle

Precision Position Control of a Voice Coil Motor Using Self-Tuning Fractional Order Proportional-Integral-Derivative Control

Department of Electrical Engineering, National Taiwan Normal University, Taipei 106, Taiwan
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Author to whom correspondence should be addressed.
Academic Editors: Teen-Hang Meen, Shoou-Jinn Chang, Stephen D. Prior and Artde Donald Kin-Tak Lam
Micromachines 2016, 7(11), 207; https://doi.org/10.3390/mi7110207
Received: 24 September 2016 / Revised: 29 October 2016 / Accepted: 8 November 2016 / Published: 15 November 2016
The object of this study is to develop a self-tuning fractional order proportional-integral-derivative (SFOPID) controller for controlling the mover position of a direct drive linear voice coil motor (VCM) accurately under different operational conditions. The fractional order proportional-integral-derivative (FOPID) controller can improve the control performances of the conventional integer order PID controller with respect to the additional fractional differential and integral orders; however, choosing five interdependent control parameters including proportional, integral, and derivative gains, as well as fractional differential and integral orders appropriately is arduous in practical applications. In this regard, the SFOPID controller is proposed in which the five control parameters are optimized dynamically and concurrently according to an adaptive differential evolution algorithm with a high efficiency adaptive selection mechanism. Experimental results reveal that the SFOPID controller outperforms PID and FOPID controllers with regard to the nonlinear VCM control system under both nominal and payload conditions. View Full-Text
Keywords: proportional-integral-derivative control; voice coil motor; differential evolution; fractional order proportional-integral-derivative control; voice coil motor; differential evolution; fractional order
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MDPI and ACS Style

Chen, S.-Y.; Chia, C.-S. Precision Position Control of a Voice Coil Motor Using Self-Tuning Fractional Order Proportional-Integral-Derivative Control. Micromachines 2016, 7, 207.

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