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Vector-based tuning and experimental validation of fractional-order PI/PD controllers

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Abstract

Although a considerable amount of research has been carried out in the field of fractional-order controllers, a simplified tuning routine has yet to be established. Most of the tuning techniques for fractional-order controllers deal with complex computations and optimization routines. This paper proposes a simple yet efficient methodology based on a vector representation of the fractional-order controllers. This simplifies considerably the computations and derivation of the fractional-order controller parameters. The tuning procedure is exemplified first for a fractional-order PI controller designed for a simple first-order process, as well as for a fractional-order PD controller for a servoing system. In this case, the experimental results are also included, showing that this novel tuning approach is a viable replacement for the more complex tuning procedures currently employed in the design of different fractional-order controllers.

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Acknowledgments

This work was supported by a grant of the Romanian National Authority for Scientific Research, CNDI– UEFISCDI, Project Number PN-II-RU-TE-2012-3-0307, Contract No. 59.

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Authors and Affiliations

  1. Department of Automation, Technical University of Cluj-Napoca, Gh. Baritiu, no. 26-28, Cluj-Napoca, Romania

    Cristina I. Muresan, Eva H. Dulf & Roxana Both

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  1. Cristina I. Muresan
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  2. Eva H. Dulf
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  3. Roxana Both
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Correspondence to Eva H. Dulf.

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Muresan, C.I., Dulf, E.H. & Both, R. Vector-based tuning and experimental validation of fractional-order PI/PD controllers. Nonlinear Dyn 84, 179–188 (2016). https://doi.org/10.1007/s11071-015-2328-2

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  • DOI: https://doi.org/10.1007/s11071-015-2328-2

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