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AssigneeVestas Wind Systems A/S
InventorsKristian Balschmidt Godsk, Thomas Steiniche Bjertrup Nielsen
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The invention relates to a pitch controlled wind turbine blade including a pressure surface side and a leeward surface side, where the surfaces establishes a leading edge and a trailing edge. The blade includes a turbulence generating mechanism where the mechanism is placed on the leeward surface sides of the wind turbine blade and at the outer section of the wind turbine blade in direction of the blade tip. The invention further relates to a wind turbine including at least two pitch controlled wind turbine blades and a pitch controlling mechanism for pitching the blades. The blades include a turbulence generating mechanism where the mechanism is placed on the leeward surface sides of the wind turbine blades and at the outer section of the wind turbine blades in direction of the blade tips.
A pitch controlled wind turbine blade comprising a pressure surface side and a leeward surface side, said surfaces establishing a leading edge and a trailing edge, characterized in that said blade comprises turbulence generating means wherein said means are placed on said leeward surface side of said wind turbine blade and at the outer section of said wind turbine blade in direction of the blade tip and said turbulence generating means having a fixed shape in relation to said leeward surface side, wherein said wind turbine blade comprises at least one pitch controlling unit, and wherein the highest height of said turbulence generating means is between 0.01% and 5% of a chord length of said wind turbine blade.
A wind turbine comprising at least two pitch controlled wind turbine blades and pitch controlling means for pitching said blades characterized in that said blades comprise turbulence generating means wherein said means are placed on the leeward surface sides of said wind turbine blades and at the outer section of said wind turbine blades in direction of the blade tips and said turbulence generating means having a fixed shape in relation to said leeward surface side, wherein the highest height of said turbulence generating means is between 0.01% and 5% of a chord length of said wind turbine blades.
Dependencies are inferred from the claim text.