A model to calculate fatigue damage caused by partial waking during wind farm optimization

<p>Wind turbines in wind farms often operate in waked or partially waked conditions, which can greatly increase the fatigue damage. Some fatigue considerations may be included, but currently a full fidelity analysis of the increased damage a turbine experiences in a wind farm is not considered...

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Main Authors: A. P. J. Stanley, J. King, C. Bay, A. Ning
Format: Article
Language:English
Published: Copernicus Publications 2022-03-01
Series:Wind Energy Science
Online Access:https://wes.copernicus.org/articles/7/433/2022/wes-7-433-2022.pdf
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author A. P. J. Stanley
A. P. J. Stanley
J. King
C. Bay
A. Ning
author_facet A. P. J. Stanley
A. P. J. Stanley
J. King
C. Bay
A. Ning
author_sort A. P. J. Stanley
collection DOAJ
description <p>Wind turbines in wind farms often operate in waked or partially waked conditions, which can greatly increase the fatigue damage. Some fatigue considerations may be included, but currently a full fidelity analysis of the increased damage a turbine experiences in a wind farm is not considered in wind farm layout optimization because existing models are too computationally expensive. In this paper, we present a model to calculate fatigue damage caused by partial waking on a wind turbine that is computationally efficient and can be included in wind farm layout optimization. The model relies on analytic velocity, turbulence, and load models commonly used in farm research and design, and it captures some of the effects of turbulence on the fatigue loading. Compared to high-fidelity simulation data, our model accurately predicts the damage trends of various waking conditions. We also perform example wind farm layout optimizations with our presented model in which we maximize the annual energy production (AEP) of a wind farm while constraining the damage of the turbines in the farm. The results of our optimization show that the turbine damage can be significantly reduced, more than 10 %, with only a small sacrifice of around 0.07 % to the AEP, or the damage can be reduced by 20 % with an AEP sacrifice of 0.6 %.</p>
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spelling doaj.art-a995f092e80f4379aad0e18c8e378b112022-12-21T16:43:13ZengCopernicus PublicationsWind Energy Science2366-74432366-74512022-03-01743345410.5194/wes-7-433-2022A model to calculate fatigue damage caused by partial waking during wind farm optimizationA. P. J. Stanley0A. P. J. Stanley1J. King2C. Bay3A. Ning4currently at: National Wind Technology Center, National Renewable Energy Laboratory, Boulder, CO 80303, USAformerly at: Department of Mechanical Engineering, Brigham Young University, Provo, UT 84602, USANational Wind Technology Center, National Renewable Energy Laboratory, Boulder, CO 80303, USANational Wind Technology Center, National Renewable Energy Laboratory, Boulder, CO 80303, USADepartment of Mechanical Engineering, Brigham Young University, Provo, UT 84602, USA<p>Wind turbines in wind farms often operate in waked or partially waked conditions, which can greatly increase the fatigue damage. Some fatigue considerations may be included, but currently a full fidelity analysis of the increased damage a turbine experiences in a wind farm is not considered in wind farm layout optimization because existing models are too computationally expensive. In this paper, we present a model to calculate fatigue damage caused by partial waking on a wind turbine that is computationally efficient and can be included in wind farm layout optimization. The model relies on analytic velocity, turbulence, and load models commonly used in farm research and design, and it captures some of the effects of turbulence on the fatigue loading. Compared to high-fidelity simulation data, our model accurately predicts the damage trends of various waking conditions. We also perform example wind farm layout optimizations with our presented model in which we maximize the annual energy production (AEP) of a wind farm while constraining the damage of the turbines in the farm. The results of our optimization show that the turbine damage can be significantly reduced, more than 10 %, with only a small sacrifice of around 0.07 % to the AEP, or the damage can be reduced by 20 % with an AEP sacrifice of 0.6 %.</p>https://wes.copernicus.org/articles/7/433/2022/wes-7-433-2022.pdf
spellingShingle A. P. J. Stanley
A. P. J. Stanley
J. King
C. Bay
A. Ning
A model to calculate fatigue damage caused by partial waking during wind farm optimization
Wind Energy Science
title A model to calculate fatigue damage caused by partial waking during wind farm optimization
title_full A model to calculate fatigue damage caused by partial waking during wind farm optimization
title_fullStr A model to calculate fatigue damage caused by partial waking during wind farm optimization
title_full_unstemmed A model to calculate fatigue damage caused by partial waking during wind farm optimization
title_short A model to calculate fatigue damage caused by partial waking during wind farm optimization
title_sort model to calculate fatigue damage caused by partial waking during wind farm optimization
url https://wes.copernicus.org/articles/7/433/2022/wes-7-433-2022.pdf
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