Open Access

ARTICLE

Fractional-Order Control of a Wind Turbine Using Manta Ray Foraging Optimization

by Hegazy Rezk^1,2,*, Mohammed Mazen Alhato³, Mohemmed Alhaider¹, Soufiene Bouallègue^3,4

1 College of Engineering at Wadi Addawaser, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11911, Saudi Arabia
2 Department of Electrical Engineering, Faculty of Engineering, Minia University, 61517, Minia, Egypt
3 Research Laboratory in Automatic Control (LARA), National Engineering School of Tunis (ENIT), University of Tunis, Tunis, 1002, Tunisia
4 High Institute of Industrial Systems of Gabès, University of Gabès, Gabès, 6011, Tunisia

* Corresponding Author: Hegazy Rezk. Email:

(This article belongs to the Special Issue: Recent Advances in Fractional Calculus Applied to Complex Engineering Phenomena)

Computers, Materials & Continua 2021, 68(1), 185-199. https://doi.org/10.32604/cmc.2021.016175

Received 22 December 2020; Accepted 25 January 2021; Issue published 22 March 2021

Abstract

In this research paper, an improved strategy to enhance the performance of the DC-link voltage loop regulation in a Doubly Fed Induction Generator (DFIG) based wind energy system has been proposed. The proposed strategy used the robust Fractional-Order (FO) Proportional-Integral (PI) control technique. The FOPI control contains a non-integer order which is preferred over the integer-order control owing to its benefits. It offers extra flexibility in design and demonstrates superior outcomes such as high robustness and effectiveness. The optimal gains of the FOPI controller have been determined using a recent Manta Ray Foraging Optimization (MRFO) algorithm. During the optimization process, the FOPI controller’s parameters are assigned to be the decision variables whereas the objective function is the error racking that to be minimized. To prove the superiority of the MRFO algorithm, an empirical comparison study with the homologous particle swarm optimization and genetic algorithm is achieved. The obtained results proved the superiority of the introduced strategy in tracking and control performances against various conditions such as voltage dips and wind speed variation.

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