Serrated trailing edge panel for a wind turbine blade
AssigneeLm Wp Patent Holding A/S
InventorsJesper Høeg, Kim Ansholm Rasmussen, Casper Kildegaard, Kristian Lehmann Madsen
Life of this patent
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Abstract
A serrated panel (70) for a wind turbine blade is disclosed. The panel (70) is configured to be attached to the trailing edge of a blade to form a plurality of serrations (71) at the trailing edge of the blade. The serrated panel comprises a base part (72) for attaching the panel (70) to the trailing edge of the blade. An exterior surface (78) of the base part comprises a corrugated surface in direction between longitudinal ends of the panel such that the exterior surface comprises crests (82) aligned substantially with midpoints of bases (80) of the serrations (71) and valleys (83) aligned substantially between serrations (71).
Claims16
A serrated panel (70) for a wind turbine blade, whereby the serrated panel (70) is configured to be attached to a trailing edge of a wind turbine blade to form a plurality of serrations (71) at the trailing edge of the wind turbine blade, wherein the serrated panel comprises:
- a base part (72) configured for attaching the serrated panel (70) to the trailing edge of the wind turbine blade, the base part (72) comprising:
- a first longitudinal end (73) configured for arrangement nearest a tip end of the wind turbine blade;
- a second longitudinal end (74) configured for arrangement nearest a root end of the wind turbine blade;
- a first side (75) configured for arrangement nearest a leading edge of the wind turbine blade;
- a second side (76) configured for arrangement farthest from the leading edge of the wind turbine blade;
- an attachment surface (77) configured for attaching to an exterior surface of the wind turbine blade;
- and
- an exterior surface (78) configured to face away from the exterior surface of the wind turbine blade when the serrated panel (70) is attached to the wind turbine blade,
- wherein the plurality of serrations (71) extend from the second side (76) of the base part (72), wherein the serrations (71) each comprise a base (79) proximal to the second side (76) of the base part, and an apex (80) distal to the second side (76) of the base part (72) with a notional line (81) extending from a midpoint of the base (79) to the apex (80), and
- wherein the serrated panel (70) comprises two discrete alignment protrusions (91, 92) that protrude from an attachment side of the serrated panel (70), the two discrete alignment protrusions being configured to abut a trailing edge of the wind turbine blade and thereby align the serrated panel (70) relative to the trailing edge of the wind turbine blade, wherein each of the discrete alignment protrusions (91, 92) is positioned entirely on the base (79) of a corresponding one of the serrations (71) and adjacent to the base part (72).
A wind turbine blade (10) having a profiled contour including a pressure side and a suction side, and a leading edge (18) and a trailing edge (20) with a chord having a chord length extending therebetween, the wind turbine blade (10) extending in a spanwise direction between a root end and a tip end, the wind turbine blade comprising at least one serrated panel (70) provided along at least a portion of the trailing edge (20) of the blade (10), wherein the at least one serrated panel (70) comprises:
- a base part (72) configured for attaching the at least one serrated panel (70) to the trailing edge of the wind turbine blade, the base part (72) having:
- a first longitudinal end (73) configured for arrangement nearest a tip end of the wind turbine blade;
- a second longitudinal end (74) configured for arrangement nearest a root end of the wind turbine blade;
- a first side (75) configured for arrangement nearest a leading edge of the wind turbine blade;
- a second side (76) configured for arrangement farthest from the leading edge of the wind turbine blade;
- an attachment surface (77) configured for attaching to an exterior surface of the wind turbine blade;
- and
- an exterior surface (78) configured to face away from the exterior surface of the wind turbine blade when the at least one serrated panel (70) is attached to the wind turbine blade;
- wherein the plurality of serrations (71) extend from the second side (76) of the base part (72), wherein the serrations (71) each comprise a base (79) proximal to the second side (76) of the base part, and an apex (80) distal to the second side (76) of the base part (72) with a notional line (81) extending from a midpoint of the base (79) to the apex (80), and
- wherein the serrated panel (70) comprises two discrete alignment protrusions (91, 92) that protrude from an attachment side of the serrated panel (70), the two discrete alignment protrusions being configured to abut a trailing edge of the wind turbine blade and thereby align the serrated panel (70) relative to the trailing edge of the wind turbine blade, wherein each of the discrete alignment protrusions (91, 92) is positioned entirely on the base (79) of a corresponding one of the serrations (71) and adjacent to the base part (72).
Dependencies are inferred from the claim text.