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TECHNICAL PAPERS

Effect of Turbulence Variation on Extreme Loads Prediction for Wind Turbines

[+] Author and Article Information
Patrick J. Moriarty

National Renewable Energy Laboratory, Golden, CO 80401e-mail: patrick_moriarty@nrel.gov

William E. Holley

Pleasanton, CA 94588e-mail: bill_holley@compuserve.com

Sandy Butterfield

National Renewable Energy Laboratory, Golden, CO 80401e-mail: sandy_butterfield@nrel.gov

J. Sol. Energy Eng 124(4), 387-395 (Nov 08, 2002) (9 pages) doi:10.1115/1.1510137 History: Received March 01, 2002; Revised July 01, 2002; Online November 08, 2002
Copyright © 2002 by ASME
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References

Figures

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Joint probability density function of mean wind speed and turbulence level
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Contour plot of joint probability density function
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Probability of exceedance, Vmean=10 m/s,σ=0.2 m/s
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Probability of exceedance, Vmean=10 m/s,σ=1.8 m/s
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Probability of exceedance, Vmean=10 m/s,σ=5.0 m/s
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Long-term exceedance probability distributions
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Comparison of effect of conditional turbulence distribution on long-term exceedance probability
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Moment threshold value compared to parametric data fit
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Shifted mean value of moment maxima compared to parametric data fit
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Standard deviation of moment maxima compared to parametric data fit
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Skewness of moment maxima compared to parametric data fit
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Number of moment maxima compared to parametric data fit
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Comparison of empirical and parametric long-term loads extrapolation techniques
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Sensitivity of long-term exceedance probability to higher order moments
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Conditional exceedance probability for turbulence levels at Vmean=10 m/s

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