The present invention has been made in view of the above-described conventional demand, and provides a wind power generation facility capable of realizing a lightning strike suppression effect while maintaining power generation efficiency by maintaining a blade shape that greatly affects power generation efficiency.

It is characterized in that an erected support column 5, a generator G provided at an upper portion of the support column 5, a hub H provided on a drive shaft S that rotationally drives the generator, a plurality of blades 7 radially provided to the hub about the drive shaft, charged bodies 8 provided at tips of the blades, and a capacitor 9 provided in an inner space of the hub are provided, and the capacitor includes a first electrode body 18 that is grounded and a second electrode body 20 that faces the first electrode body with an electrically insulating layer interposed therebetween and connected to the charged bodies.

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

Improvements relating to wind turbine blade manufacture A method of making wind turbine blades of variable length is described. The method involves forming first and second half shells of a main blade section in a main blade mould assembly. A pre-manufactured tip section is selected from a plurality of tip sections of different lengths according to a total length requirement for the wind turbine blade. The tip section is supported adjacent to the main blade mould assembly such that an inboard end of the tip section overlaps with an outboard end of one of the half shells of the main blade section. The main mould assembly is then closed to bond the two main half shells together and to bond the tip section to the main blade half shells. The invention allows blades of different overall length to be produced using a common main blade mould assembly.

Provided is a blade for a wind turbine including a trailing edge and a leading edge, a lightning protection system with at least one lightning receptor on the blade tip for receiving lightning and at least one lightning down conductor for conducting a lightning current received by the lightning receptor to the blade root, and an ice formation prevention system with a conductive layer arranged along the leading edge, and a first connection terminal on the first end and a second connection terminal on the second end for connecting the layer with a power supply unit, the first connection terminal is connected with the lightning down conductor, wherein the first connection terminal partially contacts the layer and have a rear section connected to the layer and a front section that longitudinally extends towards the blade tip.

A power generating windmill having a plurality of blade extending radially outward from a central rotor in position to be engaged by a moving fluid stream is provided. Each blade partially overlaps the blade prior to and behind it to increase lift forces on the blades.

A rotor blade assembly for a wind turbine includes at least one rotor blade having surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a blade tip and a blade root. The surfaces are constructed of a polymeric composite material. The rotor blade assembly also includes a protection cap arranged adjacent to one or more of the surfaces of the rotor blade so as to cover at least a portion of the one or more surfaces of the rotor blade. The protection cap includes a body defining an overall length. Further, at least a first segment of the protection cap is constructed of a tungsten-based metal. Thus, the protection cap is configured to reduce erosion and resist corrosion of the rotor blade caused by particle or liquid impact.

The invention relates to a rotor blade (100) for a wind turbine, having a rotor blade root (102), a rotor blade outer edge (104), a leading edge (106) and a trailing edge (108), The leading edge (106) and the trailing edge (108) define a chord (110), the length of which increases from the rotor blade root (102) to the rotor blade outer edge (104), Chord centre points (112) define a rotor wing centre line (114) running from the rotor blade root (0.102) to the rotor blade outer edge (104) and the rotor wing centre line (114) divides the rotor blade outer edge (104) into a leading edge portion (116) and a trailing edge portion (118), a winglet (120) that extends only along the trailing edge portion (118) being arranged on the rotor blade outer edge (104).

A multilayer protective covering can protect a surface from lightning strikes. The covering includes a bottom conductive layer affixed to the surface and having a first opening that is aligned with a grounding connection so that the grounding connection is exposed through first opening and not in contact with the bottom conductive layer. The covering also includes a dielectric layer affixed to the bottom conductive layer and having second opening aligned with the grounding connection so that the grounding connection is exposed through second opening and not in contact with the dielectric layer. The covering additionally includes a top conductive layer affixed to the dielectric layer and covering the grounding connection. The top conductive layer directs electrical current from a lightning strike on the surface to the grounding connection.

A wind turbine rotor blade extension fitting element, which extension fitting element is designed as a rotor blade rib with a recess and which can be pushed onto the rotor blade tip of a rotor blade to be extended, in such a way that the rotor blade tip protrudes through the recess and contacts the circumferential surface of the recess in an positive-locking manner. The extension fitting element has, on its outer circumference, an outer circumferential surface onto which a shell-like rotor blade extension can be pushed in an positive-locking manner. A core of the extension fitting element has slits and/or boreholes which, for stabilization, are filled with a material that has a higher strength and/or stiffness than the material of the core. In this way, the extension fitting element is strengthened for the transfer of high loads.

A wind turbine rotor blade including a blade tip, a blade root, the root defining a z-axis of a right-handed coordinate system, a shell having a leading edge, a trailing edge, a pressure side, a suction side, and, at a longitudinal position close to the tip, an aerodynamic profile with a chord and a profile height. The chord defines a y-axis. The profile height defines an x-axis. A carrying structure including a shear web connects the pressure and suction side. The blade has a prebend towards the pressure side such that the tip is offset from the z-axis along the x-axis. The blade has a sweep towards the trailing edge such that the tip is offset from the z-axis along the direction of the y-axis. The shear web defines a plane including the z-axis or has a constant distance therefrom and is inclined relative to the x-axis.