Wind turbine generator blade lightning protection system
A lightning protection system and blade technology, used in wind power generation, wind turbines, engines, etc., can solve problems such as blade damage, and achieve the effect of avoiding damage and improving lightning protection performance.
Pending Publication Date: 2018-08-03
华润新能源(连州)风能有限公司
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Problems solved by technology
[0005] However, in practical applications, when the lightning current conducts to the conductive strap bolts 103, a higher potential is generated in the conductive strap bolts 103, and it is easy to discharge radially with the blade fixing bolts 104, which are good conductors of the current, and cause damage to the blades.
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Embodiment Construction
[0030] An embodiment of the present invention provides a wind turbine blade lightning protection system, which is used to improve the lightning protection performance of the wind turbine.
[0031] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0032] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present invention and the above drawings are us...
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Abstract
The embodiment of the invention discloses a wind turbine generator blade lightning protection system. The wind turbine generator blade lightning protection system is used for improving the lightning protection performance of a wind turbine generator. The wind turbine generator blade lightning protection system comprises a blade, a lightning conductor, a bolt hole, an insulation layer, a conductiveband bolt, a conductive band, a conductive hammer and a grounding device. The lightning conductor is located in the blade, the bolt hole is located in the root part of the blade, the lightning conductor is connected with the conductive band bolt, the conductive band bolt is wrapped by the insulation layer used for improving the insulation strength of the side face of the conductive band bolt, andthe conductive band bolt is fixed into the insulation layer and installed in the bolt hole; and after the blade receives the lightning current, the lightning current is guided to the conductive bandbolt through the lightning conductor, the conductive band bolt guides the lightning current to the conductive band, and the lightning current flows to the grounding device through the conductive hammer in a gap discharging manner.
Description
technical field [0001] The invention relates to the field of wind power generation, in particular to a lightning protection system for a wind turbine. Background technique [0002] Wind energy is a renewable green and clean energy. Wind turbines are devices that can use wind energy to generate electricity. With the increase in the capacity of wind turbines and the height of the fuselage, the severity of wind turbine lightning disasters is becoming more and more significant. [0003] In the prior art, the blades of wind turbines are generally provided with lightning protection structures, such as figure 1 As shown, when the blade 100 is struck by lightning, the blade tip of the blade 100 is provided with a lightning receptor (not shown in the figure), and the lightning receptor conducts the lightning current through the blade lightning protection circuit 101 to the conductive strap bolt 103, and then the conductive strap The bolt 103 is guided to the conductive belt 102 by t...
Claims
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Login to View More IPC IPC(8): F03D80/30
CPCF03D80/30Y02E10/72
Inventor 尹鹏黄德华倪孟岩
Owner 华润新能源(连州)风能有限公司