A series of continuous vibration measurements in 14 upwind wind turbines of the same model and belonging to the same wind farm have been conducted. The data were acquired over a period lasting approximately half a year. The tower axial vibration acceleration has been monitored in the frequency band from 0 to 10 Hz with an accelerometer mounted on the gearbox casing between the intermediate and the high-speed shafts. It has been observed that the average frequency spectrum is dominated by the blade passing frequency in all the wind turbines. The evolution of the vibration magnitudes over the entire range of operating conditions is also very similar for all the wind turbines. The root-mean-square (rms) acceleration value has been correlated with the wind speed, and it has been found that a linear fit with a positive slope is a useful model for prediction purposes.
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December 2015
Technical Briefs
Wind Speed Dependency of Low-Frequency Vibration Levels in Full-Scale Wind Turbines
Xavier Escaler,
Xavier Escaler
Department of Fluid Mechanics,
Universitat Politècnica de Catalunya,
Av. Diagonal 647,
Barcelona 08028, Spain
e-mail: escaler@mf.upc.edu
Universitat Politècnica de Catalunya,
Av. Diagonal 647,
Barcelona 08028, Spain
e-mail: escaler@mf.upc.edu
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Toufik Mebarki
Toufik Mebarki
Schaeffler Iberia S.L.U.,
Foment 2,
Sant Just Desvern 08960, Spain
e-mail: toufik.mebarki@schaeffler.com
Foment 2,
Sant Just Desvern 08960, Spain
e-mail: toufik.mebarki@schaeffler.com
Search for other works by this author on:
Xavier Escaler
Department of Fluid Mechanics,
Universitat Politècnica de Catalunya,
Av. Diagonal 647,
Barcelona 08028, Spain
e-mail: escaler@mf.upc.edu
Universitat Politècnica de Catalunya,
Av. Diagonal 647,
Barcelona 08028, Spain
e-mail: escaler@mf.upc.edu
Toufik Mebarki
Schaeffler Iberia S.L.U.,
Foment 2,
Sant Just Desvern 08960, Spain
e-mail: toufik.mebarki@schaeffler.com
Foment 2,
Sant Just Desvern 08960, Spain
e-mail: toufik.mebarki@schaeffler.com
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received April 4, 2014; final manuscript received September 15, 2015; published online October 15, 2015. Assoc. Editor: Yves Gagnon.
J. Sol. Energy Eng. Dec 2015, 137(6): 064505 (5 pages)
Published Online: October 15, 2015
Article history
Received:
April 4, 2014
Revised:
September 15, 2015
Citation
Escaler, X., and Mebarki, T. (October 15, 2015). "Wind Speed Dependency of Low-Frequency Vibration Levels in Full-Scale Wind Turbines." ASME. J. Sol. Energy Eng. December 2015; 137(6): 064505. https://doi.org/10.1115/1.4031633
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