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Spar structure with integrated down conductor element for lightning protection system

A conductor element and spar technology, applied in the field of spar cap and spar structure, can solve the problems of increasing the complexity of the lightning protection system and the complexity of the lightning protection system

Pending Publication Date: 2021-07-23
BLADE DYNAMICS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Longer blade designs advance the choice of carbon as a raw material, which increases the complexity of Lightning Protection Systems (LPS), as LPS for carbon fiber reinforced wind turbine blades are more complex than those for glass fiber wind turbine blades More complex

Method used

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  • Spar structure with integrated down conductor element for lightning protection system
  • Spar structure with integrated down conductor element for lightning protection system
  • Spar structure with integrated down conductor element for lightning protection system

Examples

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Embodiment Construction

[0019] Detailed example embodiments are disclosed herein. However, specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments. Example embodiments may, however, be embodied in many alternative forms and should not be construed as limited to only the embodiments set forth herein.

[0020] Therefore, while the illustrated embodiments are capable of various modifications and alternative forms, embodiments thereof are illustrated by way of example in the drawings and will be described herein in detail. It should be understood, however, that there is no intent to limit example embodiments to the particular forms disclosed, but on the contrary, example embodiments are to cover all modifications, etc., that fall within the scope of example embodiments. effectiveness and substitution.

[0021] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be lim...

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PUM

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Abstract

A spar cap for a spar structure inside a wind turbine blade is provided. A down conductor element is integrated on a side of the spar cap such that after assembly of the spar cap into the spar structure, the down conductor element extends along an outer corner of the spar structure.

Description

technical field [0001] This invention provides a spar cap and spar structure with an integrated lower conductor element for a lightning protection system of a wind turbine blade. The invention also provides a wind turbine blade with a corresponding spar cap and spar structure and a method of manufacturing these elements. Background technique [0002] Lightning strikes are an increasing operational risk for wind turbines as turbines become larger and their structural elements become taller (eg longer blades). Longer blade designs advance the choice of carbon as a raw material, which increases the complexity of Lightning Protection Systems (LPS), as LPS for carbon fiber reinforced wind turbine blades are more complex than those for glass fiber wind turbine blades More complex. Carbon fiber has excellent unit strength and Young's modulus as a structural material, but is also electrically conductive. Therefore, a lightning protection system for a blade designed with such mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06F03D80/30
CPCF03D1/0675F03D80/30Y02E10/72Y02P70/50F05B2280/2001F05B2280/2006H02G13/40
Inventor M·T·努南P·T·海登H·贝默
Owner BLADE DYNAMICS LTD