Method for accelerating the destruction of helical vortices in the wake of a rotor of a wind turbine in a wind farm

Thomas Leweke (Inventor), Jens Nørkær Sørensen (Inventor)

Research output: Patent

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Abstract

The invention relates to a wind farm/park having a plurality of spatially distributed wind turbines, each of which comprises a rotor with at least two blades, said wind farm/park comprises at least one upstream wind turbine and one or more downstream wind turbines, wherein said at least one downstream wind turbine is affected under certain wind conditions by a wake region generated by said at least one upstream wind turbine and containing helical vortex structures formed at the tip of the blades of said at least one upstream wind turbine, wherein the geometry or configuration of one or more of the plurality of rotor blades of said at least one upstream wind turbine is different from the geometry or configuration of the other blade(s) of said at least one upstream wind turbine thereby creating a fixed asymmetry in the blade configuration so as to accelerate the destruction of said vortices in the wake of the rotor of said upstream wind turbine by exciting a natural instability of the said blade tip vortices.

Original languageEnglish
IPCF03D 7/ 02 A I
Patent numberWO2022078883
Filing date13/10/2020
Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
Priority date13/10/2020
Priority numberEP20200201519
Publication statusPublished - 21 Apr 2022

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