Wind Turbine Power Performance Verification in Complex Terrain and Wind Farms

Gjerding, Søren
Ingham, Peter
Enevoldsen, Peder
Hansen, Jesper Kjær
Jørgensen, Henrik Kanstrup
Pedersen, Troels Friis

2002

87-550-3028-9, 87-550-3029-7 (Internet)

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The IEC/EN 61400-12 Ed 1 standard for wind turbine power performance testing is being revised. The standard will be divided into four documents. The first one of these is more or less a revision of the existing document on power performance measurements on individual wind turbines. The second one is a power performance verification procedure for individual wind turbines. The third is a power performance measurement procedure of whole wind farms, and the fourth is a power performance measurement procedure for non-grid (small) wind turbines. This report presents work that was made to support the basis for this standardisation work. The work addressed experience from several national and international research projects and contractual and field experience gained within the wind energy community on this matter. The work was wide ranging and addressed ‘grey’ areas of knowledge regarding existing methodologies, which has then been investigated in more detail. The work has given rise to a range of conclusions and recommendations regarding: guaranties on power curves in complex terrain; investors and bankers experience with verification of power curves; power performance in relation to regional correction curves for Denmark; anemometry and the influence of inclined flow. The current work was supported by the Danish Energy Agency under the UVE development programme, contract no. 1363/98-0017. [Abstract]

Energía eólica; Turbinas eólicas;