公开(公告)号：US11965487B2

公开(公告)日：2024-04-23

申请号：US16627433

申请日：2018-06-15

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Luke Spandley ,  Arran Wood ,  Darren Rogers

IPC: F03D80/40 ,  F03D1/06 ,  F03D80/60 ,  H05B3/00 ,  H05B3/18

CPC classification number: F03D80/40 ,  F03D1/0675 ,  F03D80/60 ,  H05B3/00 ,  H05B3/0023 ,  H05B3/18 ,  H05B2203/00 ,  H05B2214/02

Abstract: The present invention relates to an Electro-Thermal Heating element for a wind turbine blade comprising an electrically conductive resistive material; two active busbars for supplying electrical power to the electrically conductive resistive material; and at least one dummy busbar at a predetermined spacing between the two active busbars on the electrically conductive resistive material. The present invention is also directed to a method of repair of the Electro-Thermal Heating Element.

公开(公告)号：US20220243703A1

公开(公告)日：2022-08-04

申请号：US17629526

申请日：2020-07-27

Applicant: Vestas Wind Systems A/S

Inventor： Luke Spandley ,  Darren Rogers ,  Arran Wood ,  Paul Badger

IPC: F03D17/00 ,  G01M5/00

Abstract: A method of inspecting a wind turbine blade. The wind turbine blade comprises an electro-thermal heating element and a surface protection layer. The method comprises: exposing a test point of the electro-thermal heating element; contacting the test point to establish an electrical connection between the test point and a sensor; and electrically connecting the sensor to the surface protection layer. The sensor is operated to measure a resistance value indicative of an electrical resistance between the test point and the surface protection layer. The resistance value is analysed to determine a condition of the wind turbine blade. The invention provides a method of inspecting a wind turbine blade which enables damage or defects to be detected which may be difficult to detect by visual inspection or traditional non-destructive testing techniques. For instance, the resistance value may give an indication of the presence of an electrical short between the heating element and the surface protection layer.