Remote sensing used for power curves

Rozenn Wagner; Hans Ejsing Jørgensen; Uwe Schmidt Paulsen; Torben J. Larsen; Ioannis Antoniou; L. Thesbjerg

doi:10.1088/1755-1315/1/1/012059

Remote sensing used for power curves

Rozenn Wagner, Hans Ejsing Jørgensen, Uwe Schmidt Paulsen, Torben J. Larsen, Ioannis Antoniou, L. Thesbjerg

Research output: Contribution to journal › Conference article › Research

Abstract

Power curve measurement for large wind turbines requires taking into account more parameters than only the wind speed at hub height. Based on results from aerodynamic simulations, an equivalent wind speed taking the wind shear into account was defined and found to reduce the power standard deviation in the power curve significantly. Two LiDARs and a SoDAR are used to measure the wind profile in front of a wind turbine. These profiles are used to calculate the equivalent wind speed. The comparison of the power curves obtained with the three instruments to the traditional power curve, obtained using a cup anemometer measurement, confirms the results obtained from the simulations. Using LiDAR profiles reduces the error in power curve measurement, when these are used as relative instrument together with a cup anemometer. Results from the SoDAR do not show such promising results, probably because of noisy measurements resulting in distorted profiles.

Original language	English
Journal	IOP Conference Series: Earth and Environmental Science
Volume	1
Issue number	1
Pages (from-to)	U470-U480
ISSN	1755-1315
DOIs	https://doi.org/10.1088/1755-1315/1/1/012059
Publication status	Published - 2008
Event	14th International symposium for the advancement of boundary layer remote sensing - Risø National Laboratory, DTU, Risø, Denmark Duration: 23 Jun 2008 → 25 Jun 2008 Conference number: 14

Conference

Conference	14th International symposium for the advancement of boundary layer remote sensing
Number	14
Location	Risø National Laboratory, DTU
Country/Territory	Denmark
City	Risø
Period	23/06/2008 → 25/06/2008

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title = "Remote sensing used for power curves",

abstract = "Power curve measurement for large wind turbines requires taking into account more parameters than only the wind speed at hub height. Based on results from aerodynamic simulations, an equivalent wind speed taking the wind shear into account was defined and found to reduce the power standard deviation in the power curve significantly. Two LiDARs and a SoDAR are used to measure the wind profile in front of a wind turbine. These profiles are used to calculate the equivalent wind speed. The comparison of the power curves obtained with the three instruments to the traditional power curve, obtained using a cup anemometer measurement, confirms the results obtained from the simulations. Using LiDAR profiles reduces the error in power curve measurement, when these are used as relative instrument together with a cup anemometer. Results from the SoDAR do not show such promising results, probably because of noisy measurements resulting in distorted profiles.",

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author = "Rozenn Wagner and {Ejsing J{\o}rgensen}, Hans and {Schmidt Paulsen}, Uwe and Larsen, {Torben J.} and Ioannis Antoniou and L. Thesbjerg",

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AU - Wagner, Rozenn

AU - Ejsing Jørgensen, Hans

AU - Schmidt Paulsen, Uwe

AU - Larsen, Torben J.

AU - Antoniou, Ioannis

AU - Thesbjerg, L.

N1 - Conference code: 14

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N2 - Power curve measurement for large wind turbines requires taking into account more parameters than only the wind speed at hub height. Based on results from aerodynamic simulations, an equivalent wind speed taking the wind shear into account was defined and found to reduce the power standard deviation in the power curve significantly. Two LiDARs and a SoDAR are used to measure the wind profile in front of a wind turbine. These profiles are used to calculate the equivalent wind speed. The comparison of the power curves obtained with the three instruments to the traditional power curve, obtained using a cup anemometer measurement, confirms the results obtained from the simulations. Using LiDAR profiles reduces the error in power curve measurement, when these are used as relative instrument together with a cup anemometer. Results from the SoDAR do not show such promising results, probably because of noisy measurements resulting in distorted profiles.

AB - Power curve measurement for large wind turbines requires taking into account more parameters than only the wind speed at hub height. Based on results from aerodynamic simulations, an equivalent wind speed taking the wind shear into account was defined and found to reduce the power standard deviation in the power curve significantly. Two LiDARs and a SoDAR are used to measure the wind profile in front of a wind turbine. These profiles are used to calculate the equivalent wind speed. The comparison of the power curves obtained with the three instruments to the traditional power curve, obtained using a cup anemometer measurement, confirms the results obtained from the simulations. Using LiDAR profiles reduces the error in power curve measurement, when these are used as relative instrument together with a cup anemometer. Results from the SoDAR do not show such promising results, probably because of noisy measurements resulting in distorted profiles.

KW - Vindenergi

U2 - 10.1088/1755-1315/1/1/012059

DO - 10.1088/1755-1315/1/1/012059

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SN - 1755-1315

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SP - U470-U480

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T2 - 14th International symposium for the advancement of boundary layer remote sensing

Y2 - 23 June 2008 through 25 June 2008

ER -

Remote sensing used for power curves

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