Wind turbine blade with a trailing edge spacing section

    公开(公告)号:US11028824B2

    公开(公告)日:2021-06-08

    申请号:US15577020

    申请日:2016-05-25

    Abstract: A wind turbine blade is provided with two shell parts each at least partly made of a sandwich structure including an inner skin (76), an outer skin (74), and an intermediate core material (75, 77), wherein the shell parts are bonded together at least along their respective leading edges (18). The blade also comprises a longitudinally extending spacing section in which the respective trailing edges (58a, 58b) of the pressure side shell part and the suction side shell part are spaced apart, wherein a trailing edge shear web (45) is arranged between and connected to the sandwich structure of the suction side shell part (84, 86, 87) and the sandwich structure of the pressure side shell part (74, 76, 77).

    Method of manufacturing a wind turbine blade

    公开(公告)号:US10946598B2

    公开(公告)日:2021-03-16

    申请号:US16306690

    申请日:2017-06-13

    Inventor: Lars Nielsen

    Abstract: In a method for manufacturing a wind turbine blade half shell, a preformed and cured aerodynamic blade shell member 42 of a fibre reinforced resin is provided. A primarily uniaxial fibre material 66 comprising carbon fibre is laid up on a longitudinal inner area 50 of the preformed shell member 42 and then infused with a resin by vacuum-assisted resin transfer moulding (VARTM), where a longitudinal resin inlet channel 80,82 is arranged on a first lateral side 46 and a vacuum channel 86,88 is arranged on a second lateral side 48 of the laid-up fibre material, and the resin is infused in transverse direction from the first to the second lateral side 46,48.

    Method and system for transporting and storing at least two wind turbine blades

    公开(公告)号:US10781834B2

    公开(公告)日:2020-09-22

    申请号:US15184172

    申请日:2016-06-16

    Abstract: A transportation and storage system for at least two wind turbine blades include a first wind turbine blade and a second wind turbine blade is described. The wind turbine blades each have a root end and a tip end. The system includes a packaging system adapted to place the first wind turbine blade so that the tip end of the first wind turbine blade points in a first direction, with the tip end of the second wind turbine blade pointing in a second direction, which is substantially opposite to the first direction. The tip end of the second wind turbine blade extends beyond the root end of the first wind turbine blade, and the tip end of the first wind turbine blade extends beyond the root end of the second wind turbine blade, when the first and the second wind turbine blades are arranged in the packaging system.

    Method and apparatus for determining loads of a wind turbine blade

    公开(公告)号:US10662807B2

    公开(公告)日:2020-05-26

    申请号:US15399289

    申请日:2017-01-05

    Inventor: Casper Skovby

    Abstract: Method and blade monitoring system for monitoring bending moment of a wind turbine blade. The method comprises obtaining a first sensor set signal indicative of a first bending moment at a first sensor position different from the tip end along the longitudinal axis of the wind turbine blade, and estimating a bending moment at a first estimation position along the longitudinal axis based on the first sensor set signal, wherein the first sensor position is different from the first estimation position along the longitudinal axis. The blade monitoring system comprises a processing unit and an interface connected to the processing unit, the processing unit being configured for performing the method.

    Wind turbine blades and potential equalization systems

    公开(公告)号:US10584684B2

    公开(公告)日:2020-03-10

    申请号:US16064758

    申请日:2016-12-19

    Abstract: A wind turbine blade, extending longitudinally root end to tip end, having a load carrying structure, a shell body and a lightning protection system is described. The load carrying structure is fiber-reinforced polymer in a plurality of stacked layers comprising electrically conductive fibers. The lightning protection system comprises a lightning receptor arranged freely accessible in or on the shell body and a lightning down-conductor electrically connected to the lightning receptor and is configured to be electrically connected to a ground connection. The blade further comprises a potential equalisation system providing a potential equalising connection between a number of the electrically conductive fibers of the load carrying structure and the lightning protection system. The system comprises a dissipating element made of an electrically conductive material which in turn comprises at least one transverse connector arranged to extend transverse through a thickness of the stacked fiber layers and configured to dissipate.

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