Model for Optimal Power Coefficient Tracking and Loss Reduction of the Wind Turbine Systems

Kashif Sohail; Hooman Farzaneh

doi:10.3390/en15114159

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Model for Optimal Power Coefficient Tracking and Loss Reduction of the Wind Turbine Systems

Journal article

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Model for Optimal Power Coefficient Tracking and Loss Reduction of the Wind Turbine Systems

Kashif Sohail and Hooman Farzaneh

Energies, Vol.15(11), pp.1-19

2022

DOI: https://doi.org/10.3390/en15114159

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Abstract

wind turbine

mathematical modeling

power coefficient

power loss

This research aimed to introduce a comprehensive mathematical modeling approach based on the maximization of the power coefficient (Cp) to obtain the regulation in pitch angle and tip speed ratio (TSP), taking into account the detailed power losses at the different stages of the power train of the wind turbine. The model is used to track the optimal power coefficient of the wind turbine power train, considering both direct (without gearbox) and indirect (with gearbox) drive configurations. The result of the direct driveline was validated with a 100 W horizontal-axis wind turbine experimental system. The model estimated the optimal value of Cp at 0.48 for a pitch angle of 0 degrees and a TSR of 8.1, which could be obtained at a wind speed of around 11.2 m/s. The results also revealed that, within the lower wind regime, windage, hysteresis, and eddy current losses dominated, while during higher wind regimes, the copper, stray load, and insulator gate bipolar transistor (IGBT) losses gained high values. The developed model was applied to a 20 kW indirect drive wind turbine installed in Gwadar city in Pakistan. Compared with the direct coupling, the optimal value of Cp was obtained at a higher value of the pitch angle (1.7 degrees) and a lower value of TSR (around 6) due to the significant impact of the gear and copper losses in an indirect drivetrain.

Details

Title: Model for Optimal Power Coefficient Tracking and Loss Reduction of the Wind Turbine Systems
Authors: Kashif Sohail - Kyushu University
Hooman Farzaneh (Corresponding Author) - Kyushu University
Publication details: Energies, Vol.15(11), pp.1-19
Publisher: MDPI AG
Date published: 2022
DOI: 10.3390/en15114159
ISSN: 1996-1073
Copyright note: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Data Availability: Not applicable.
Grant note: This research was supported by the Japanese Grant Aid for Human Resource Development (JDS) Japan–Pakistan.
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 991224530002621
Output Type: Journal article

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