In a first aspect of the invention there is provided a wind turbine blade comprising a shell and a shear web connected between a windward inner surface of the shell and a leeward inner surface of the shell. The shear web comprises an elongate web panel and a load-bearing flange extending transversely from a first side of the web panel to connect the shear web to the windward or leeward inner surface of the shell. The blade further comprises at least one non-structural flange extending transversely from a second side of the web panel. The non-structural flange has a substantially planar adhesive-receiving portion arranged in opposed relation to the windward or leeward inner surface of the shell. The load-bearing flange and the non-structural flange are formed of different materials.

A stability component configured to be arranged in an inner space of a wind turbine blade is provided, a use of a stability component for stabilizing a blade shell of a wind turbine blade of a wind turbine, a wind turbine blade and methods of manufacturing a wind turbine blade.

A wind turbine blade including a shell structure defining a leading edge and a trailing edge, and an upwind shell and a downwind shell joined along at least one of the leading edge or the trailing edge. The shell structure includes an assembly of preformed parts processed into a collection of prefabricated laminates. The invention also includes a method of manufacturing a wind turbine blade, the method includes processing a number of preformed parts into a collection of prefabricated laminates and assembling the collection of prefabricated laminates to build a shell structure defining a leading edge and a trailing edge.

A root portion for a wind turbine blade is provided, including: an inner wall, an outer wall, a filler, an inner volume, mounting inserts, and a transversal holding arrangement, wherein the transversal holding arrangement includes at least one inlay beam extending from the inner wall and/or the outer wall into a mounting insert hole of at least one mounting insert for holding the mounting insert in the root portion during operation of the wind turbine blade, and wherein the mounting insert hole is a through hole and the at least one inlay beam extends from the inner wall through the mounting insert hole to the outer wall. A wind turbine blade with the root portion, a method of producing the root portion and a method for modifying a root portion is further provided.

Modular wind turbine blade designs include a plurality of modular sections that are attached to each other on site. Each section preferably includes a cross member and a plurality of lengthwise members. A plurality of fasteners are used to secure a cross member between end flanges of first and second sets of lengthwise members. The plurality of lengthwise members and cross members are covered with an outer skin. A weight system is preferably retained in an inner perimeter of a plurality of first lengthwise members. The weight system preferably includes a lengthwise frame, a rail structure, a sliding weight and at least one weight motor. A plurality of fins may be attached to a bottom surface of a modular blade assembly. A fin actuation mechanism may be used to move the position of a plurality of fins relative to a bottom surface of the modular blade assembly.

A wind turbine blade includes a profiled contour with a leading edge and a trailing edge, and a chord extending between the leading edge and the trailing edge, along with a blade shell with a pressure side and a suction side, a first main spar cap integrated in the pressure side of the blade shell, a second main spar cap integrated in the suction side of the blade shell, and one or more shear webs connected between the first main spar cap and the second main spar cap. The blade shell includes at least a first load carrying structure arranged at the leading edge or the trailing edge and having a first extension, including a first primary extension on a first side of the chord, where the first primary extension is at least 60% of the first extension.

A modular wind turbine blade includes a blade root, an intermediate portion and a blade tip. The intermediate portion includes a plurality of modular blades, two adjacent modular blades being provided at edge thereof with a first connecting portion and a second connecting portion that cooperate with each other, and wherein the plurality of modular blades includes a trailing edge shell, a leading edge shell and a main beam, respectively, the first connecting portion at the edge of the trailing edge shell and the leading edge shell being fixedly connected to the second connecting portion at the edge of the main beam. The wind turbine blade according to the present invention adopts segmented modular structural design, which effectively reduces the mold occupancy time of the blade, shortening the production cycle and improving the molding efficiency.

A wind turbine blade for a wind turbine is provided, the wind turbine blade having a tip portion and a root portion, and the wind turbine blade including a shell and a spar, the spar including two spar caps connected to one another by at least one spar web of the spar and extending in a longitudinal direction of the wind turbine blade, whereby at least one of the two spar caps is configured as a main down conductor of a lightning protection system of the wind turbine blade, the at least one main down conductor including an electrically conductive fiber-reinforced plastic being electroconductively connected to at least one electrical interface of the lightning protection system. Also provided is a wind turbine including such a wind turbine blade.

A method of making a wind turbine blade shear web. The method comprises providing a shear web mould. The shear web mould has a longitudinally-extending main surface shaped to form a main panel of the shear web, and first and second longitudinally extending side surfaces shaped to form respective first and second flange portions of the shear web. The method further comprises arranging one or more layers of fibrous material against the main surface and against the first and second side surfaces of the mould to form a layup that is generally C-shaped in cross-section. The method further comprises arranging a pre-cured return flange on the layup, providing uncured resin to the fibrous material of the layup and between the layup and the pre-cured return flange, and curing the uncured resin to co-bond the pre-cured return flange and the C-shaped layup.

A root portion for a wind turbine blade is provided, including: an inner wall, an outer wall, a filler, an inner volume, mounting inserts, and a transversal holding arrangement, wherein the transversal holding arrangement includes at least one inlay beam extending from the inner wall and/or the outer wall into a mounting insert hole of at least one mounting insert for holding the mounting insert in the root portion during operation of the wind turbine blade, and wherein the mounting insert hole is a through hole and the at least one inlay beam extends from the inner wall through the mounting insert hole to the outer wall. A wind turbine blade with the root portion, a method of producing the root portion and a method for modifying a root portion is further provided.