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Lightning protection device and method for wind turbine blade of wind power plant

A lightning protection and wind farm technology, applied in the direction of corona discharge devices, circuits, electrical components, etc., can solve the problems of wind turbine lightning counterattack accidents, etc., and achieve the effect of strong arc extinguishing ability, small size and simple structure

Inactive Publication Date: 2020-12-22
南宁超伏电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a lightning protection device and method for the blades of wind turbines in wind farms to solve the technical problem that existing wind turbines are likely to cause lightning strikes

Method used

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  • Lightning protection device and method for wind turbine blade of wind power plant
  • Lightning protection device and method for wind turbine blade of wind power plant
  • Lightning protection device and method for wind turbine blade of wind power plant

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, preferred embodiments are given to further describe the present invention in detail. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0033] Such as Figure 1-2 As shown, a lightning protection device for wind turbine blades of a wind farm in the present invention includes a fan blade 1, a tip recoil arc extinguishing device 2 is provided at the tip of the fan blade 1, and a tip recoil arc extinguishing device 2 is arranged on the fan blade 1. There are several blade recoil arc extinguishing devices 4, the fan blade 1 is provided with a grounding wire 3 and grounded, the tip recoil arc extinguishing device 2 and the blade recoil arc extinguish...

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Abstract

The invention discloses a lightning protection device and method for a wind turbine blade of a wind power plant, and belongs to the field of lightning protection and arc extinguishing. The lightning protection device comprises a fan blade, a tip recoil arc extinguishing device is arranged at the tip of the fan blade, a plurality of blade recoil arc extinguishing devices are arranged on the fan blade, and a grounding wire is arranged in the fan blade and is grounded. The tip recoil arc extinguishing device and the blade recoil arc extinguishing devices are connected with a ground wire. The recoil arc extinguishing device is simple in structure, small in size, suitable for being applied to fan blades, capable of extinguishing electric arcs through energy of lightning arcs, high in arc extinguishing capacity, capable of extinguishing all or most flashover electric arcs and high in reliability. At the moment, the amplitude of the lightning current flowing through the grounding wire of thefan is very small, so that the lightning counterattack accident of the fan caused by over-high soil resistivity can be effectively avoided.

Description

technical field [0001] The invention relates to the field of lightning protection and arc extinguishing, in particular to a lightning strike protection device and method for wind blades of a wind turbine in a wind farm. Background technique [0002] In recent years, wind power has developed rapidly due to the advantages of clean and renewable wind energy, strong adaptability and environmental friendliness, and has attracted more and more attention from all over the world. [0003] However, the rapid development and large-scale application of wind power generation have also brought about even greater challenges in lightning protection. Most wind farms are located in open space, and wind turbines are extremely vulnerable to lightning strikes due to their complex atmospheric environment and their non-standard structural characteristics, which are tall and towering with rotating components. The increase in the installed capacity of wind turbines, the height of the fuselage and ...

Claims

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Application Information

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IPC IPC(8): H01T1/02H01T19/00
CPCH01T1/02H01T19/00
Inventor 王巨丰王嬿蕾骆耀敬黄萍王国锋徐宇恒庞智毅李心如张奇星段小嬿彭斐杨倩颖张清河郭克竹
Owner 南宁超伏电气科技有限公司
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