Comparative analysis of PI and fuzzy logic controller for grid connected wind turbine under normal and fault conditions

Abstract This research is dedicated to improving the control system of wind turbines (WT) to ensure optimal efficiency and rapid responsiveness. To achieve this, the fuzzy logic control (FLC) method is implemented to control the converter in the rotor side (RSC) of a doubly fed induction generator (...

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Main Authors: Mohamed Bahgat, Mohamed Ezzat, Mahmoud A. Attia, S. F. Mekhamer, Nourhan M. Elbehairy
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-85073-w
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author Mohamed Bahgat
Mohamed Ezzat
Mahmoud A. Attia
S. F. Mekhamer
Nourhan M. Elbehairy
author_facet Mohamed Bahgat
Mohamed Ezzat
Mahmoud A. Attia
S. F. Mekhamer
Nourhan M. Elbehairy
author_sort Mohamed Bahgat
collection DOAJ
description Abstract This research is dedicated to improving the control system of wind turbines (WT) to ensure optimal efficiency and rapid responsiveness. To achieve this, the fuzzy logic control (FLC) method is implemented to control the converter in the rotor side (RSC) of a doubly fed induction generator (DFIG) and its performance is compared with an optimized proportional integral (PI) controller. The study demonstrated an enhancement in the performance of the DFIG through the utilization of the proposed FLC, effectively overcoming limitations and deficiencies observed in the conventional controllers, this approach significantly improved the performance of the wind turbine. Additionally, the selected membership functions were found to be highly compatible with the unique characteristics of wind energy. The optimization process is implemented for the controllers of both the grid side converter (GSC) and RSC. Through simulated analyses conducted using MATLAB/Simulink software, comprehensive assessments are carried out. The robustness of the FLC is evaluated compared to the optimized controllers across various wind profiles and challenging fault conditions. The results demonstrate satisfactory performance of the FLC in terms of steady-state time, stability, and precision under diverse wind speed profiles. The FLC achieves a significantly better settling time than the enhanced PI, improving by approximately 14–70% under normal conditions and 40–70% under various fault conditions. Additionally, the FLC outperforms the enhanced PI in fault conditions by reducing peak-to-peak oscillations by about 30–65%. It also delivers a smaller steady-state error, with improvements of around 2–4% under both normal conditions and most fault scenarios.
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issn 2045-2322
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spelling doaj-art-65a143fa90934bb4a40fcd9557df65ed2025-01-19T12:19:35ZengNature PortfolioScientific Reports2045-23222025-01-0115111610.1038/s41598-024-85073-wComparative analysis of PI and fuzzy logic controller for grid connected wind turbine under normal and fault conditionsMohamed Bahgat0Mohamed Ezzat1Mahmoud A. Attia2S. F. Mekhamer3Nourhan M. Elbehairy4Electrical Power and Machines Department, Ain Shams UniversityElectrical Power and Machines Department, Ain Shams UniversityElectrical Power and Machines Department, Ain Shams UniversityElectrical Engineering Department, Future UniversityElectrical Power and Machines Department, Egyptian Chinese UniversityAbstract This research is dedicated to improving the control system of wind turbines (WT) to ensure optimal efficiency and rapid responsiveness. To achieve this, the fuzzy logic control (FLC) method is implemented to control the converter in the rotor side (RSC) of a doubly fed induction generator (DFIG) and its performance is compared with an optimized proportional integral (PI) controller. The study demonstrated an enhancement in the performance of the DFIG through the utilization of the proposed FLC, effectively overcoming limitations and deficiencies observed in the conventional controllers, this approach significantly improved the performance of the wind turbine. Additionally, the selected membership functions were found to be highly compatible with the unique characteristics of wind energy. The optimization process is implemented for the controllers of both the grid side converter (GSC) and RSC. Through simulated analyses conducted using MATLAB/Simulink software, comprehensive assessments are carried out. The robustness of the FLC is evaluated compared to the optimized controllers across various wind profiles and challenging fault conditions. The results demonstrate satisfactory performance of the FLC in terms of steady-state time, stability, and precision under diverse wind speed profiles. The FLC achieves a significantly better settling time than the enhanced PI, improving by approximately 14–70% under normal conditions and 40–70% under various fault conditions. Additionally, the FLC outperforms the enhanced PI in fault conditions by reducing peak-to-peak oscillations by about 30–65%. It also delivers a smaller steady-state error, with improvements of around 2–4% under both normal conditions and most fault scenarios.https://doi.org/10.1038/s41598-024-85073-wDoubly fed induction generatorFuzzy logic controllerProportional integral controller
spellingShingle Mohamed Bahgat
Mohamed Ezzat
Mahmoud A. Attia
S. F. Mekhamer
Nourhan M. Elbehairy
Comparative analysis of PI and fuzzy logic controller for grid connected wind turbine under normal and fault conditions
Scientific Reports
Doubly fed induction generator
Fuzzy logic controller
Proportional integral controller
title Comparative analysis of PI and fuzzy logic controller for grid connected wind turbine under normal and fault conditions
title_full Comparative analysis of PI and fuzzy logic controller for grid connected wind turbine under normal and fault conditions
title_fullStr Comparative analysis of PI and fuzzy logic controller for grid connected wind turbine under normal and fault conditions
title_full_unstemmed Comparative analysis of PI and fuzzy logic controller for grid connected wind turbine under normal and fault conditions
title_short Comparative analysis of PI and fuzzy logic controller for grid connected wind turbine under normal and fault conditions
title_sort comparative analysis of pi and fuzzy logic controller for grid connected wind turbine under normal and fault conditions
topic Doubly fed induction generator
Fuzzy logic controller
Proportional integral controller
url https://doi.org/10.1038/s41598-024-85073-w
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AT mahmoudaattia comparativeanalysisofpiandfuzzylogiccontrollerforgridconnectedwindturbineundernormalandfaultconditions
AT sfmekhamer comparativeanalysisofpiandfuzzylogiccontrollerforgridconnectedwindturbineundernormalandfaultconditions
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