Lightning protection system for wind generator set

A wind turbine and lightning protection system technology, applied to wind turbine components, wind engines, wind power generation, etc., can solve the problems of loss, and there is no reasonable way for double-fed asynchronous generator lightning protection, so as to eliminate the impact, Guaranteed safety effect

Active Publication Date: 2009-06-24
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing lightning protection system for wind turbines is difficult to eliminate the impact of lightning and its strong current on the components of the wind turbine, which often causes significant losses, especially for 1.5MW variable-speed constant-frequency double-fed asynchron...

Method used

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  • Lightning protection system for wind generator set
  • Lightning protection system for wind generator set

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing description and specific embodiment:

[0017] Such as figure 1 The shown lightning protection system for a wind power generating set involves a tower 1, a generator nacelle 2 is arranged on the upper end of the tower 1, a frame 3 is arranged in the nacelle 2, and a frame 3 is arranged on the frame 3. Generator 4, described generator 4 is connected with gear box 6 through high-speed coupling 5, and described gear box 6 is connected with the wheel hub 9 that is provided with blade 8 through main shaft 7, is characterized in that: The inside of the blade 8 and the nacelle 2 are provided with a lightning receptor and a conductor device, and a discharge device 10 is provided on the hub 9, the main shaft 7, the gearbox 6, the frame 3 and the tower 1, and the lightning receptor The body and the conductor device are electrically connected to the discharge device 10, and the discharge...

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PUM

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Abstract

The invention discloses a lightning protection system of a wind-driven generator set, relating to a tower support, wherein, a generator cabin is arranged on the upper end of the tower support, a stander is arranged in the cabin, an electric generator is arranged on the stander and is connected with a gear box by a high-speed coupler, and the gear box is connected with a wheel hub with blades by a main shaft. The lightning protection system is characterized in that thunderbolt receptors and conductor devices are respectively arranged in the blades and on the cabin, and electric discharge devices are arranged on the wheel hub, the main shaft, the gear box, the stander and the tower support; and the thunderbolt receptors and the conductor devices are electrically connected with the electric discharge devices which are electrically connected with a grounding device arranged underground. The invention aims at avoiding the damages caused by the momentary extreme current and the voltage of lightning strike to the wind-driven generator set, in particular to a 1.5 MW speed change constant frequency double-fed asynchronous wind-driven generator set, and providing the lightning protection system effectively preventing the lightning strike from damaging the wind-driven generator.

Description

technical field [0001] The invention relates to a lightning protection system suitable for wind power generating sets. Background technique [0002] As an environmentally friendly energy industry, wind power generation has been paid more and more attention in the modern energy-constrained society, and the investment in wind power generators is also increasing. As we all know, wind power generators are generally installed in open areas in the wild. As the tallest building, it is extremely vulnerable to lightning strikes, especially in areas with high lightning strikes, and the damage caused by lightning to wind turbines is more serious. However, the existing lightning protection system for wind turbines is difficult to eliminate the impact of lightning and its strong current on the components of the wind turbine, which often causes significant losses, especially for 1.5MW variable-speed constant-frequency double-fed asynchronous wind turbines. Said that because it is equippe...

Claims

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Application Information

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IPC IPC(8): F03D11/00H01T19/04F03D80/30
CPCY02E10/722Y02E10/72
Inventor 李翔
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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