Wind turbine blade and method for manufacturing a wind turbine blade
AssigneeSiemens Gamesa Renewable Energy Innovation & Technology S.L.
InventorVictor March Nomen
Life of this patent
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Abstract
A wind turbine blade is provided, including: a first and a second blade component connected with each other in an overlap region by thermal welding, a resistive element arranged between the first and second blade components in the overlap region as a remnant of the thermal welding, the resistive element having a first and a second terminal, a lightning conductor electrically connected with each of the first and second terminals, and a surge protection device, wherein one of the first and second terminals is electrically connected with the lightning conductor via the surge protection device. The resistive element which was used for the welding process and is left in the blade as a remnant of the welding process can be integrated into the lightning protection system of the blade.
Claims15
A wind turbine blade, comprising:
- a first blade component and a second blade component connected with each other in an overlap region by thermal welding;
- a resistive element arranged between the first blade component and the second blade component in the overlap region as a remnant of the thermal welding, the resistive element having a first terminal and a second terminal;
- a lightning conductor electrically connected with each of the first terminal and the second terminal;
- and
- a surge protection device, wherein one of the first terminal and the second terminal is electrically connected with the lightning conductor via the surge protection device.
A method for manufacturing a wind turbine blade, comprising:
- a) arranging a first blade component and a second blade component such that the first blade component and the second blade component overlap with each other in an overlap region, wherein a resistive element is arranged between the first blade component and the second blade component in the overlap region, the resistive element has a first terminal and a second terminal, a lightning conductor is arranged such that the lightning conductor is electrically connected with each of the first terminal and the second terminal, and the lightning conductor is electrically connected to one of the first terminal and the second terminal via a surge protection device;
- and
- b) connecting the first blade component and the second blade component to each other by thermal welding including supplying an electrical current between the first terminal and the second terminal of the resistive element for heating the resistive element.
Dependencies are inferred from the claim text.