Atmospheric and wake turbulence impacts on wind turbine fatigue loadings

S. Lee; M. Churchfield; P. Moriarty; J. Jonkman; J. Michalakes

doi:10.2514/6.2012-540

Atmospheric and wake turbulence impacts on wind turbine fatigue loadings

S. Lee, M. Churchfield, P. Moriarty, J. Jonkman, J. Michalakes

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National Renewable Energy Laboratory

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67 Scopus citations

Abstract

Large-eddy simulations of atmospheric boundary layers under various stability and surface roughness conditions are performed to investigate the turbulence impact on wind turbines. In particular, the aeroelastic responses of the turbines are studied to characterize the fatigue loading of the turbulence present in the boundary layer and in the wake of the turbines. Two utility-scale 5-MW turbines that are separated by seven rotor diameters are placed in a 3 km by 3 km by 1 km domain. They are subjected to atmospheric turbulent boundary layer flow and data is collected on the structural response of the turbine components. The surface roughness was found to increase the fatigue loads while the atmospheric instability had a small influence. Furthermore, the downstream turbines yielded higher fatigue loads indicating that the turbulent wakes generated from the upstream turbines have significant impact.

Original language	English
DOIs	https://doi.org/10.2514/6.2012-540
State	Published - 2012
Event	50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Nashville, TN, United States Duration: Jan 9 2012 → Jan 12 2012

Conference

Conference	50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Country/Territory	United States
City	Nashville, TN
Period	01/9/12 → 01/12/12

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10.2514/6.2012-540

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title = "Atmospheric and wake turbulence impacts on wind turbine fatigue loadings",

abstract = "Large-eddy simulations of atmospheric boundary layers under various stability and surface roughness conditions are performed to investigate the turbulence impact on wind turbines. In particular, the aeroelastic responses of the turbines are studied to characterize the fatigue loading of the turbulence present in the boundary layer and in the wake of the turbines. Two utility-scale 5-MW turbines that are separated by seven rotor diameters are placed in a 3 km by 3 km by 1 km domain. They are subjected to atmospheric turbulent boundary layer flow and data is collected on the structural response of the turbine components. The surface roughness was found to increase the fatigue loads while the atmospheric instability had a small influence. Furthermore, the downstream turbines yielded higher fatigue loads indicating that the turbulent wakes generated from the upstream turbines have significant impact.",

author = "S. Lee and M. Churchfield and P. Moriarty and J. Jonkman and J. Michalakes",

year = "2012",

doi = "10.2514/6.2012-540",

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T1 - Atmospheric and wake turbulence impacts on wind turbine fatigue loadings

AU - Lee, S.

AU - Churchfield, M.

AU - Moriarty, P.

AU - Jonkman, J.

AU - Michalakes, J.

PY - 2012

Y1 - 2012

N2 - Large-eddy simulations of atmospheric boundary layers under various stability and surface roughness conditions are performed to investigate the turbulence impact on wind turbines. In particular, the aeroelastic responses of the turbines are studied to characterize the fatigue loading of the turbulence present in the boundary layer and in the wake of the turbines. Two utility-scale 5-MW turbines that are separated by seven rotor diameters are placed in a 3 km by 3 km by 1 km domain. They are subjected to atmospheric turbulent boundary layer flow and data is collected on the structural response of the turbine components. The surface roughness was found to increase the fatigue loads while the atmospheric instability had a small influence. Furthermore, the downstream turbines yielded higher fatigue loads indicating that the turbulent wakes generated from the upstream turbines have significant impact.

AB - Large-eddy simulations of atmospheric boundary layers under various stability and surface roughness conditions are performed to investigate the turbulence impact on wind turbines. In particular, the aeroelastic responses of the turbines are studied to characterize the fatigue loading of the turbulence present in the boundary layer and in the wake of the turbines. Two utility-scale 5-MW turbines that are separated by seven rotor diameters are placed in a 3 km by 3 km by 1 km domain. They are subjected to atmospheric turbulent boundary layer flow and data is collected on the structural response of the turbine components. The surface roughness was found to increase the fatigue loads while the atmospheric instability had a small influence. Furthermore, the downstream turbines yielded higher fatigue loads indicating that the turbulent wakes generated from the upstream turbines have significant impact.

UR - https://www.scopus.com/pages/publications/84873841136

U2 - 10.2514/6.2012-540

DO - 10.2514/6.2012-540

M3 - Paper

AN - SCOPUS:84873841136

T2 - 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

Y2 - 9 January 2012 through 12 January 2012

ER -

Atmospheric and wake turbulence impacts on wind turbine fatigue loadings

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