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Wind generating set cabin cover lightning protection system and design method of wind generating set cabin cover lightning protection system

A technology of wind power generating set and lightning protection system, which is applied in the direction of wind power generator, wind power generation, engine, etc. It can solve the problem that the nacelle cover cannot be protected in all directions, and achieve the effect of improving the safety of the unit, ingenious conception, and improving safety

Active Publication Date: 2016-03-30
HUAYI WIND ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of the traditional nacelle cover lightning protection system is to install lightning rods on the top of the nacelle cover, and combine the lead wires under the nacelle cover and run through the cover to conduct lightning current flow. It has certain limitations in lightning protection and cannot fully protect the nacelle cover.

Method used

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  • Wind generating set cabin cover lightning protection system and design method of wind generating set cabin cover lightning protection system
  • Wind generating set cabin cover lightning protection system and design method of wind generating set cabin cover lightning protection system
  • Wind generating set cabin cover lightning protection system and design method of wind generating set cabin cover lightning protection system

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Embodiment 1

[0040] Reference Figure 1 to Figure 2 As shown, the design method of a wind turbine nacelle cover lightning protection system of the present invention takes a 2.5MW wind turbine with a hub height of 80m as an example, and finds out the lightning protection weakness of the nacelle cover through the rolling ball model. point.

[0041] When lightning strikes from the right side of the rear of the nacelle cover, both corners of the right side of the rear of the nacelle cover are exposed to the range of lightning strikes, see figure 2 . The invention finds the weak point of the nacelle cover by the rolling ball method, and installs the lightning protection air-termination device 3 at the position of the weak point. The lightning protection air-termination device 3 is designed and arranged through the nacelle cover lightning protection air-termination device 3, and is connected with the wire 4 arranged inside the nacelle cover 1. Connect to make the nacelle cover 1 form a Faraday cov...

Embodiment 2

[0057] Reference Figure 2 to Figure 7 As shown, a wind turbine nacelle cover lightning protection system of the present invention includes a nacelle cover 1 and a lightning rod device 2 installed at the rear end of the nacelle cover 1. The lightning rod device 2 includes a frame 5 and a lightning rod 6 mounted on the frame 5 A grounding cable 7 is connected to the bottom of the frame 5, and the grounding cable 7 is connected to the base in the nacelle. The rear end of the nacelle cover 1 is equipped with a lightning protection air-termination device 3 by the design method described in embodiment 1, and the lightning protection air-termination device 3 is connected by a wire 4 and is connected to the grounding cable 7. The wire 4 of, specifically uses a copper braid and is installed inside the nacelle cover 1.

[0058] To further optimize the above solution, the lightning protection air-termination device 3 is formed by welding three round steel columns 8 in a "T"-shaped structu...

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Abstract

The invention discloses a wind generating set cabin cover lightning protection system and a design method of the wind generating set cabin cover lightning protection system. The design method is characterized in that the system comprises a cabin cover and a lightning rod device mounted at the rear end of the cabin cover, weak spots of the cabin cover are found by a rolling ball method, lightning protection lightning arresters are mounted at the weak spots and are connected with wires arranged in the cabin cover, thereby allowing the cabin cover to form a faraday cage through the design and distribution of the lightning protection lightning arrester of the cabin cove. Compared with the prior art, with the adoption of the technical scheme, the design method of the wind generating set cabin cover lightning protection system has the following advantages that by employing the principle of the rolling ball method of a wind generating set, various weak spots of the cabin cover of the wind generating set are protected, the cabin cover is protected fully, and the safety of the wind generating set is improved.

Description

technical field [0001] The invention relates to a design method of a lightning protection system for a nacelle cover of a wind power generating set and the lightning protection system. Background technique [0002] Wind energy is the renewable clean energy with the most mature technology and the most conditions for large-scale development. Wind power generation provides the basis for the harmonious development of man and nature. Since wind power generators work in a natural environment, they will inevitably be affected by natural disasters. Due to the rapid development of modern science and technology, the capacity of a single wind turbine is increasing. In order to absorb more energy, the height of the tower and the diameter of the impeller increase, which also increases the risk of being struck by lightning. Lightning has become a natural phenomenon. It is the most harmful disaster to the safe operation of wind turbines. The huge energy released by lightning can cause d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/30
CPCY02E10/72
Inventor 郑安旺邹渊士李元强陈进建钱成钱张康龙
Owner HUAYI WIND ENERGY CO LTD
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