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Wind speed dependency of low-frequency vibration levels in full-scale wind turbines
- Source :
- Recercat. Dipósit de la Recerca de Catalunya, instname, UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC)
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Abstract
- 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.
- Subjects :
- Engineering
Wind gradient
Frequency band
Acoustics
Vibrations
Blade passing frequency
Energy Engineering and Power Technology
Vibració
Vibration
Wind speed
Acceleration
Wind profile power law
Enginyeria mecànica [Àrees temàtiques de la UPC]
Diagnosis
Apparent wind
Measurement
Energia eòlica
Wind power
Renewable Energy, Sustainability and the Environment
business.industry
Enginyeria mecànica::Mecànica::Vibracions mecàniques [Àrees temàtiques de la UPC]
Energies::Energia eòlica [Àrees temàtiques de la UPC]
Energies::Energia eòlica::Aerogeneradors [Àrees temàtiques de la UPC]
business
Noise
Wind turbine
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Recercat. Dipósit de la Recerca de Catalunya, instname, UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC)
- Accession number :
- edsair.doi.dedup.....96a35b69a9342ee58045c708770ddfac