European Wind Energy Conference and Exhibition 2010, EWEC 2010
- Volumen: 6
- Fecha: 01 diciembre 2010
- Páginas: 4130-4139
- ISBN: 9781617823107
- Tipo de fuente: Ponencia
- Tipo de documento: Documento de conferencia
Power curve measurement for large wind turbines should take into account more parameters than only the wind speed at hub height. To identify the influence of wind shear on wind turbine performance, wind speed measurements in different heights are analysed. The logarithmic and power law equations, which are commonly used to depict the increase in wind speed with height, are tested with real measurement data. The measurements have been performed using a remote sensing equipment, specifically a LIDAR one, due to its ability for measuring wind speed at several heights at the same time. In order to assess the power curve performance of a commercial wind turbine, energy production data for a test period of three months are also used. The suitability of representing the actual energy flux through the rotor with an equivalent wind speed instead of wind speed measured just at hub height is examined.