Wind turbine blade, wind turbine and method for manufacturing a wind turbine blade

a technology of wind turbine blades and wind turbine blades, which is applied in the direction of wind motors with parallel air flow, non-positive displacement fluid engines, liquid fuel engine components, etc., can solve the problems of lightning current following the electrical cables to a ground potential instead of the down conductor, time-consuming and costly repair of the sensor system, and difficult protection
US20100221111A1Inactive Publication Date: 2010-09-02VESTAS WIND SYST AS
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
VESTAS WIND SYST AS
Publication Date
2010-09-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a wind turbine blade comprising one or more electric powered modules. The modules have power supply means converting an energy source to electrical power for said one or more modules, wherein said energy source is light beams transmitted to the power supply means in the blade structure and / or interior from an external light source. The invention also relates to wind turbine and a method for manufacturing a wind turbine blade.
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Description

BACKGROUND OF THE INVENTION

[0001] The invention relates to a wind turbine blade, wind turbine and a method for manufacturing a wind turbine blade.

[0002] Modern wind turbine blades hold different apparatuses in order to survey and protect the blades from overload and damage such as sensor means. The sensor means are usually externally supplied with electrical power via electrical cables running through the interior of the blade.

[0003] Wind turbine blades may also comprise a lightning protection system which usually includes a number of lightning receptors e.g. on the blade tip surface and with connections to a lightning down conductor. The lightning down conductor runs through the interior of the blade and via other parts of the wind turbine to a ground potential.

[0004] A problem with the use of internal electrical cables for sensors and a lightning protection system in the wind turbine blade is the risk of lightning current following the electrical cables to a ground potential instead o...

Claims

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