Wind power blade lightning protection system and lightning protection wind power blade

A technology for wind power blades and lightning protection systems, which is applied in wind power generation, wind turbines, wind turbines, etc. in the same direction as the wind, can solve the problems of sudden change in down-conductor resistance and damage to the metal mesh at the connection, so as to reduce damage and increase. The effect of large contact area and reduction of mutation degree
CN112682275AActive Publication Date: 2021-04-20ZHUZHOU TIMES NEW MATERIALS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHUZHOU TIMES NEW MATERIALS TECH
Publication Date
2021-04-20

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Abstract

The invention discloses a wind power blade lightning protection system and a lightning protection wind power blade. The wind power blade lightning protection system comprises a metal net laid on the surface of the wind power blade, the metal net is connected with a down lead, the down lead is connected with a whole machine lightning protection system of a wind power generator, multiple layers of additional metal nets are overlapped on the metal net, metal belts are clamped between the metal net and the additional metal nets and between the adjacent layers of additional metal nets, and the multiple metal belts extend into a cavity of the wind power blade to be twisted into a strand and then connected with the down lead. According to the wind turbine blade lightning protection system and the lightning protection wind turbine blade, the sudden change degree of resistance from the metal nets to the metal belts can be reduced, and thus damage of lightning current to the metal nets in the area near the connecting position of the metal belts is reduced in the process that the lightning current is conducted to the down lead from the metal nets.
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Description

technical field

[0001] The present invention relates to the technical field of lightning protection for wind power blades. Specifically, it relates to a lightning protection system for wind power blades and a lightning protection wind power blade. Background technique

[0002] At present, the blades of wind turbines all include a lightning protection system. The lightning protection system is mainly composed of lightning receptors installed on the surface of the blade and wires inside the blade body. All lightning receptors are connected to wires. The air-termination device receives lightning and is connected to the lightning protection system of the entire machine through wires, thereby preventing the fiberglass fiber reinforced plastics of the blade body from being struck by lightning.

[0003] With the advancement of blade technology, especially the use of carbon fiber blades, metal mesh is more and more used in the blade lightning protection system. By laying metal mesh ...

Claims

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