Analysis of Influence of Tilt Angle on Variable-Speed Fixed-Pitch Floating Offshore Wind Turbines for Optimizing Power Coefficient Using Experimental and CFD Models

This study focused on optimization of the power coefficient of floating offshore wind turbines (FOWTs) to maintain their wind power performance in order to overcome problems with the tilt angle resulting from an unstable wind turbine platform, which can reduce the effective area of wind turbine ener...

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Main Authors: Wisatesajja, Wongsakorn (Author), Roynarin, Wirachai (Author), Intholo, Decha (Author)
Format: EJournal Article
Published: Center of Biomass & Renewable Energy, Diponegoro University, 2021-05-01.
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001 IJRED_UNDIP_33195_pdf
042 |a dc 
100 1 0 |a Wisatesajja, Wongsakorn  |e author 
700 1 0 |a Roynarin, Wirachai  |e author 
700 1 0 |a Intholo, Decha  |e author 
245 0 0 |a Analysis of Influence of Tilt Angle on Variable-Speed Fixed-Pitch Floating Offshore Wind Turbines for Optimizing Power Coefficient Using Experimental and CFD Models 
260 |b Center of Biomass & Renewable Energy, Diponegoro University,   |c 2021-05-01. 
500 |a https://ejournal.undip.ac.id/index.php/ijred/article/view/33195 
520 |a This study focused on optimization of the power coefficient of floating offshore wind turbines (FOWTs) to maintain their wind power performance in order to overcome problems with the tilt angle resulting from an unstable wind turbine platform, which can reduce the effective area of wind turbine energy extraction. FOWTs with a variable-speed fixed-pitch control strategy were investigated using an experimental model in a wind tunnel and a CFD simulation model for analysis and comparison, using wind speeds of 2-5.5 m/s and tilt angles of 3.5-6.1°. The results showed that average rotational speed differences of 16.4% and optimal power coefficients of 0.35-0.36 could be maintained at tip speed ratios of 7.7-9.6 during wind speeds of 3-5 m/s with tilt angles of 3.9-5.8°. The results of this study provide insights into a new concept of power coefficient optimization using variable tilt angle for small to medium fixed pitch FOWTs, to reduce the cost of pitch control systems. 
540 |a Copyright (c) 2021 The Authors. Published by Centre of Biomass and Renewable Energy (CBIORE) 
540 |a https://creativecommons.org/licenses/by-sa/4.0 
546 |a eng 
690 |a floating offshore wind turbines; tilt angle; wind energy; power coefficient; computational fluid dynamics 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n International Journal of Renewable Energy Development; Vol 10, No 2 (2021): May 2021; 201-212 
786 0 |n 2252-4940 
787 0 |n https://ejournal.undip.ac.id/index.php/ijred/article/view/33195/pdf 
856 4 1 |u https://ejournal.undip.ac.id/index.php/ijred/article/view/33195/pdf  |z Get Fulltext