Hybrid pultrusion plates for a spar cap of a wind turbine blade
AssigneesBlade Dynamics Limited, Lm Wind Power A/S
InventorsRama Razeghi, Jeppe Jørgensen
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Abstract
The present invention relates to a method of manufacturing a wind turbine blade shell component (38), the method comprising the steps of providing a plurality of pultrusion plates (64), arranging the pultrusion plates (64) on blade shell material (89) in a mould (77) for the blade shell component, and bonding the pultrusion plates (64) with the blade shell material to form the blade shell component, wherein each pultrusion plate (64) is formed of a pultrusion fibre material comprising glass fibres and carbon fibres. The invention also relates to a reinforcing structure for a wind turbine blade, the reinforcing structure comprising a plurality of pultrusion plates according to the present invention.
Claims16
A method of manufacturing a wind turbine blade shell component of a wind turbine blade, the method comprising:
- providing a plurality of pultrusion plates;
- arranging the plurality of pultrusion plates on blade shell material in a mould for the blade shell component;
- bonding the plurality of pultrusion plates with the blade shell material to form the blade shell component,
- providing at least one electrically conducting lightning receptor of a lightning protection system for the wind turbine blade;
- and
- electrically connecting the at least one electrically conducting lightning receptor to the plurality of pultrusion plates,
- wherein each of the plurality of pultrusion plates is formed of a pultrusion fibre material comprising glass fibres and carbon fibres,
- wherein the pultrusion fibre material comprises a plurality of tows of glass fibre material and a plurality of tows of carbon fibre material,
- wherein each of the plurality of pultrusion plates comprises a top surface, an opposing bottom surface and two lateral surfaces, and
- wherein at least one continuous path of adjoining tows of carbon fibre material is provided within each of the plurality of pultrusion plates, the at least one continuous path of adjoining tows of carbon fibre material extending from the top surface to the opposing bottom surface of each of the plurality of pultrusion plates, and wherein the adjoining tows of carbon fibre material are spaced apart with respect to one another by a distance of not more than 100 μm.
A wind turbine blade shell component comprising:
- a pultrusion plate formed of a pultrusion fibre material comprising glass fibres and carbon fibres, wherein the pultrusion fibre material comprises a plurality of tows of glass fibre material and a plurality of tows of carbon fibre material,
- wherein the pultrusion plate comprises a top surface, an opposing bottom surface, and two lateral surfaces,
- wherein at least one continuous path of adjoining tows of carbon fibre material is provided within the pultrusion plate, the at least one continuous path of adjoining tows of carbon fibre material extending from the top surface to the opposing bottom surface of the pultrusion plate, and wherein the adjoining tows of carbon fibre material are spaced apart with respect to one another by a distance of not more than 100 μm, and
- wherein at least one electrically conducting lightning receptor of a lightning protection system is electrically connected to the pultrusion plate.
Dependencies are inferred from the claim text.