Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Direct lightning strike protecting device of wind power generator set blade

A technology for wind turbines and generators, applied in wind turbine components, wind engines, wind power generation, etc., which can solve the problems of poor bearing ball operation, damage to electronic equipment, and huge costs for disassembly and replacement of damaged components. Achieve the effect of preventing the formation of lightning ionization channels, reducing lightning reception, and reducing the formation of lightning strikes

Inactive Publication Date: 2012-06-20
SHANDONG MASTER ELECTRIC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wind blades are the most expensive equipment in wind turbines. If they are struck by lightning, in addition to losing the power generated during the repair period, they will also have to bear the huge cost of disassembly and replacement of damaged parts
[0004] The existing wind blade direct lightning protection is mostly solved by installing a lightning receptor at the tip of the blade, but after the lightning receptor is lightning, the lightning current will flow through the main bearing and the engine room when it enters the ground, and the bearing balls will rotate due to the welding effect At the same time, a large number of electronic equipment in the cabin will also be damaged due to electromagnetic interference generated by lightning flowing into the ground

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Direct lightning strike protecting device of wind power generator set blade
  • Direct lightning strike protecting device of wind power generator set blade
  • Direct lightning strike protecting device of wind power generator set blade

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Example 1, a wind turbine blade direct lightning strike protection device, refer to figure 1 , figure 2 , image 3 , the aluminum sheet 4 is pre-embedded in the axial direction of the generator set blade, the aluminum sheet 4 is connected with a multi-discharge tip 2 and the two ends of the multi-discharge tip 2 protrude from the two side edges of the generator set blade 5 respectively, and the multi-discharge tip Both ends of 2 are pin-toothed, and the aluminum sheet 4 is grounded through the cable 3, which constitutes a structure of the present invention.

example 2

[0017] Example 2, a wind turbine blade direct strike lightning protection device, refer to figure 2 , image 3 , Figure 4 , on the basis of Embodiment 1, the edge of the generator set blade 5 is provided with a discharge tip 1, and the discharge tip 1 on the edge of the generator set blade 5 is tooth-shaped, and the others are identical to Example 1.

example 3

[0018] Example 3, a wind turbine blade direct strike lightning protection device, refer to figure 2 , image 3 , Figure 5 , on the basis of Embodiment 1, the edge of the generator set blade 5 is provided with a discharge tip 1, and the discharge tip 1 on the edge of the generator set blade 5 is needle-shaped, and the others are identical to Example 1.

[0019] When using the present invention, discharge tip 1, multiple discharge tips 2, cable 3, and aluminum sheet 4 constitute the direct lightning protection device for fan blades, wherein discharge tip 1 and multiple discharge tips 2 constitute a charge dissipation device, when discharge tip 1, When the charges of the multi-discharge tip 2 accumulate to a certain extent, the ionized air will form a corona, and the discharge tip 1 and the multi-discharge tip 2 will be equipotentially connected to the flange of the fan blade through the cable 3, thereby effectively avoiding the ground charge on the surface of the fan blade. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a direct lightning strike protecting device of a wind power generator set blade, which comprises a power generator set blade, wherein an aluminum sheet is arranged in the power generator set blade in advance; a multi-discharge tip end is connected to the aluminum sheet, and both ends of the multi-discharge tip end extend out of the edge of the power generator set blade side; both ends of the multi-discharge tip end are in needle tooth shapes; and the aluminum sheet is grounded by a cable. The invention has the characteristics of effectively protecting the wind power generator set blade, preventing earth charge from accumulating on the blade by high-frequency and small-energy tip end discharge and preventing or reducing the direct lightning strike from directly striking the blade.

Description

technical field [0001] The invention belongs to the technical field of lightning strike protection equipment, and in particular relates to a direct lightning strike protection device for blades of a wind power generating set. Background technique [0002] As a clean renewable energy power generation method, wind power has been more and more welcomed and valued by people all over the world. In recent years, China has become the most active wind power market in the world. [0003] Due to the requirements of the wind power environment for the wind turbine, the location is extremely vulnerable to lightning strikes, and the blades are located at the highest position, so they are the most vulnerable equipment in the wind turbine to be struck by direct lightning. Wind blades are the most expensive equipment in wind turbines. If they are struck by lightning, in addition to the loss of power generated during the repair period, they will also have to bear the huge cost of disassembly ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F03D11/00H02G13/00F03D80/30
CPCY02E10/722Y02E10/72
Inventor 于彩霞王培波邹海华
Owner SHANDONG MASTER ELECTRIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com