CN110219784A - A kind of lightning-protection system of wind electricity blade - Google Patents
A kind of lightning-protection system of wind electricity blade Download PDFInfo
- Publication number
- CN110219784A CN110219784A CN201910548662.5A CN201910548662A CN110219784A CN 110219784 A CN110219784 A CN 110219784A CN 201910548662 A CN201910548662 A CN 201910548662A CN 110219784 A CN110219784 A CN 110219784A
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- China
- Prior art keywords
- lightning
- metal mesh
- wind electricity
- thunder
- electricity blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005611 electricity Effects 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 claims abstract description 91
- 229910052751 metal Inorganic materials 0.000 claims abstract description 91
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 7
- 239000004917 carbon fiber Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 208000025274 Lightning injury Diseases 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2280/00—Materials; Properties thereof
- F05B2280/20—Inorganic materials, e.g. non-metallic materials
- F05B2280/2006—Carbon, e.g. graphite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a kind of lightning-protection systems of wind electricity blade, it includes the metal mesh I for being fixed on wind electricity blade shell two sides for conducting thunder and lightning, the laying work area of every face metal mesh I matches substantially with girder, metal mesh I closes on one end of root of blade and ground line is connected conducting thunder and lightning to ground, interval is overlapped with multiple metal mesh II on metal mesh I, metal mesh II is equipped with the arrester for conducting thunder and lightning far from one end of metal mesh I, and one end that arrester protrudes into enclosure interior is connected by branch cable line with leader cable line to realize that metal mesh I is connected with leader cable line；The tip of wind electricity blade is equipped with tip arrester, and leader cable line is separately connected tip arrester and ground line so that thunder and lightning is passed through ground line conduction to ground.The lightning-protection system is by can be carried out metal mesh I and the double flow-guiding channel water conservancy diversion of leader cable line, avoiding lightning-protection system global failure caused by metal mesh I lightning stroke is broken after thunder and lightning the problem of, can more comprehensively ensure the operational safety of blade.
Description
Technical field
The present invention relates to wind electricity blade lightning protection fields, more particularly, to a kind of lightning-protection system of wind electricity blade.
Background technique
In recent years, with increasing, high-intensitive, high-modulus the carbon fiber of the enlargement of Wind turbines and marine utilization
Girder is widely used in wind electricity blade.Compared with glass fibre girder, it is easier to make wind-powered electricity generation because carbon fiber is conductive
Blade is struck by lightning, but its electric conductivity is very poor, cannot rapidly be conducted thunder and lightning after being struck by lightning, so can generate more
For serious damage, maintenance cost is huge.
In the prior art to the lightening arresting method of carbon fiber girder wind electricity blade usually in blade outer layer from tip to root
It is whole to be laid with metal mesh, however this method has the following problems: (1), blade be equipped with metal mesh from tip to root, and carbon
Fiber girder end position is generally away from blade tip 2-3m, interior, tip 2m at the metal mesh more rapid wear higher by lightning strike probability of blade tip 2m
Wound；(2), maintenance difficult after metal mesh damage, is such as repaired not in time, and metal mesh water conservancy diversion cross section is reduced herein, conducts thunder again
It will lead to flow-guiding channel when electric to narrow, cause more macrolesion；(3), it only receives by metal mesh and conducts thunder and lightning, such as by energy
Biggish thunder and lightning even will cause metal mesh and integrally be broken, and cannot continue to conduct thunder and lightning after metal mesh fracture, cause entirely anti-
Thunder thrashing.
Therefore, it is necessary to find a kind of lightning protection structure of wind electricity blade for being able to solve the above problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of lightning-protection systems of wind electricity blade, it is intended to solve in the prior art
It since blade tip section laying metal mesh is subject to lightning stroke and damages, and is integrally broken and can not conduct after being struck by lightning because of metal mesh
Electric current and the problem of cause lightning-protection system to fail.
In order to solve the above-mentioned technical problem used technical solution is the present invention: a kind of lightning-protection system packet of wind electricity blade
Include the laying work area and girder base of the metal mesh I, every face metal mesh I that are fixed on wind electricity blade shell two sides for conducting thunder and lightning
This matching, metal mesh I closes on one end of root of blade and ground line is connected conducting thunder and lightning to ground, along leaf on metal mesh I
Piece axial direction interval is overlapped with multiple metal mesh II, and metal mesh II is equipped with far from one end of metal mesh I for conducting thunder and lightning
Thunder and lightning conducting piece, one end that thunder and lightning conducting piece protrudes into enclosure interior are connect with leader cable line by branch cable line to realize metal
Net I is connected with leader cable line；The tip of wind electricity blade is equipped with tip arrester, and leader cable line is separately connected tip arrester and connects
Ground wire is to pass through ground line conduction to ground for thunder and lightning.
Further, the thunder and lightning conducting piece is arrester.
Further, the shielding flow guide bar for preventing leader cable line from being punctured by thunder and lightning is equipped with outside wind electricity blade shell tip,
The arrester that shielding flow guide bar closes on one end setting of blade tip with tip arrester and metal mesh I respectively is connect.
Further, wind electricity blade inner walls are fixed with the pedestal connecting with branch cable line, arrester and pedestal spiral shell
Line connection.
Further, one end that metal mesh I closes on wind electricity blade tip, which folds, to be fixed in the terminal pad of tip, tip connection
Disk is connect by arrester with wind electricity blade shell；One end that metal mesh I closes on wind turbine blade root, which folds, is fixed on root company
It connects in disk, root terminal pad is connect by fastener with wind electricity blade shell.
Further, the circular area on the arrester top is not less than 50mm2。
Further, the girder is carbon fiber girder.
Further, support frame is equipped in the region inside wind electricity blade without web, leader cable line passes through web and support
Frame is supported on middle part of blade.
Further, the sectional area of the leader cable line is not less than 50mm2。
The utility model has the advantages that
As described above, a kind of lightning-protection system of wind electricity blade of the invention, has the advantages that
1, metal mesh I is overlapped using metal mesh II and be conducted with thunder and lightning conducting piece, while thunder and lightning conducting piece and leader cable line phase
Even, realize that metal mesh I be connected to the equipotential of leader cable line, by can be carried out metal mesh I and leader cable line pair water conservancy diversion after thunder and lightning
Channel water conservancy diversion avoids the problem of metal mesh I lightning stroke is broken caused lightning-protection system global failure, can more comprehensively ensure leaf
The operational safety of piece, and the lightning protection effect of whole lightning-protection system will not be influenced after metal mesh I damage not repairing.
2, the multiple thunder and lightning conducting pieces installed outside blade shell are arrester, and arrester can also while conducting thunder and lightning
Directly to receive lightning strokes, increases and connect sudden strain of a muscle area.
3, blade tip region is laid with shielding flow guide bar, effectively avoids leader cable line from disruptive discharge phenomenon occur, and shield
Flow guide bar installation is simple, convenient for safeguarding.And metal mesh I is only laid with girder region, blade tip region is not laid with metal mesh
I, the problem of being repaired by lightning damage there is no metal mesh I.
4, metal mesh I is connect by tip terminal pad and root terminal pad with hull outside, and is only connect by fastener
It compares, increases the connection area of metal mesh I and shell, guarantee that metal mesh I will not arbitrarily fall off, and improve conduction thunder and lightning
Efficiency.
5, by limiting the sectional area of leader cable line and the area of thunder and lightning conducting piece upper circular in the present invention, to guarantee it
It can still work normally when receiving the lightning stroke of larger current, effectively extend the lightning-protection system uses the time.
Further specific detailed description is done to the present invention below with reference to embodiment the drawings and specific embodiments.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology to be briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of lightning-protection system in the present invention.
Fig. 2 is lightning-protection system tip configuration enlarged diagram.
Fig. 3 is the cross-sectional view in Fig. 2 at A-A.
Fig. 4 is the cross-sectional view in Fig. 2 at B-B.
Fig. 5 is the enlarged diagram in Fig. 4 at I.
Diagram label, 1, shell, 2, girder, 3, metal mesh I, 4, tip arrester, 5, shielding flow guide bar, 6, tip connection
Disk, 7, metal mesh II, 8, thunder and lightning conducting piece, 9, branch cable line, 10, leader cable line, 11, root terminal pad, 12, pedestal, 13,
Web, 14, support frame.
Specific embodiment
Core of the invention is to provide a kind of lightning-protection system of wind electricity blade, and the lightning-protection system in the present invention applies to carbon containing
Also it can reach good effect in the wind electricity blade of fiber girder, it is of course also possible to which the lightning-protection system is used in other materials
In the wind electricity blade of girder (such as two sides glass fibre girder, a face glass fibre girder and a face carbon fiber girder).The lightning protection
System avoids anti-caused by metal mesh lightning stroke fracture by can be carried out metal mesh and the double flow-guiding channel water conservancy diversion of cable after thunder and lightning
The problem of thunder system global failure, can more comprehensively ensure the operational safety of blade.
As shown in Figs. 1-5, wind electricity blade lightning-protection system shown in the present invention, mainly includes for conducting thunder in structure
The laying work area and the substantially matched metal mesh I 3 of girder 2 of electricity, the metal mesh I 3 is to be laid on shell 1 in blade laying
The outermost layer on two sides, therefore, the quantity of metal mesh I 3 is two in a wind electricity blade.Metal mesh I 3 closes on root of blade
One end and ground line connection conducting thunder and lightning to ground.
It is to be understood that the laying work area of metal mesh I 3 matches substantially with girder 2 in the present invention, refer to metal mesh I
3 laying width is more slightly wider than 2 width of girder, and 3 laying length of metal mesh I is slightly longer than 2 end position of girder, i.e., metal mesh I 3 is complete
The region of all standing girder 2.
It should be noted that being overlapped with multiple metal mesh II along wind electricity blade axial direction interval on two metal mesh I 3
7 one end 7, metal mesh II is connect with metal mesh I 3, and one end is connect with thunder and lightning conducting piece 8, thunder and lightning conducting piece 8 be provided with it is multiple,
Thunder and lightning conducting piece 8 is connected by metal mesh II 7 with metal mesh I 3, and metal mesh II 7 and thunder and lightning conducting piece 8 directly connect,
Metal mesh I 3 and thunder and lightning conducting piece 8 is formed by metal mesh II 7 to be connected.Thunder and lightning conducting piece 8 protrudes into one end of enclosure interior
The conducting to realize metal mesh I 3 and leader cable line 10 is connect with leader cable line 10 by branch cable line 9；Leader cable line 10 is divided
Not Lian Jie tip arrester 4 and positioned at root of blade side ground line with by thunder and lightning by ground line conduction to ground.
Preferably, the thunder and lightning conducting piece 8 is arrester, and arrester can not only conduct thunder and lightning, additionally it is possible to thunder and lightning is received,
Increase the area for receiving thunder and lightning.
The area of the arrester upper circular is not less than 50mm2, bottom, which is designed, screw thread, arrester and 12 phase of pedestal
Even, it is pasted on the inner wall of blade shell 1, has on pedestal 12 and the matched screw thread of arrester in molding on the pedestal 12
Hole, pedestal 12 can be connected with branch cable line 9 by connector, and then realize the connection of leader cable line 10 and arrester.It can root
The quantity of arrester is determined according to actual requirement.
Wherein, shielding flow guide bar 5 is that the both sides external after blade demoulds in blade shell 1 is pasted, the one of shielding flow guide bar 5
End is connected with tip arrester 4, and one end is connected with the arrester of one end setting for closing on blade tip of metal mesh I 3, to have
Effect prevents internal 10 disruptive discharge of leader cable line, and the shielding flow guide bar 5 is installed simply, convenient for safeguarding.
One end that metal mesh I 3 closes on blade tip, which folds, to be fixed in tip terminal pad 6, and tip terminal pad 6 is by connecing
It dodges device to be threadedly coupled with pedestal 12, realizes the connection of metal mesh I 3 and pedestal 12；Metal mesh I 3 closes on wind turbine blade root
One end, which folds, to be fixed in root terminal pad 11, and root terminal pad 11 passes through the ground connection of fastener and 1 root of wind electricity blade shell
Line connection.The metal mesh I 3 will have good flexibility, can have during wind electricity blade laying well with type.
Metal mesh I 3 and only passes through fastener by tip terminal pad 6 and root terminal pad 11 and 1 external connection of shell
Fixed metal mesh I 3 is compared, and increases the connection area of metal mesh I 3 Yu shell 1, and folding fixed margin belongs to net I 3 and has
Certain thickness is in order to avoid metal mesh I 3 arbitrarily falls off, furthermore is also effectively guaranteed the efficiency of conduction thunder and lightning.
The sectional area of leader cable line 10 is not less than 50mm2, leader cable line 10 is arranged with inside shell 1, there is the area of web 13
Domain leader cable line 10 is fixed on the rear side of web 13, and the region support frame 14 of no web 13 is supported on the middle part of blade, main
10 one end of cable is connected with tip arrester 4, and the other end is connected conducting thunder and lightning to ground with the ground line of root side,
Branch cable line 9 is connected with leader cable line 10, and (arrester refers to positioned at wind electricity blade blade the leader cable line 10 with arrester
Arrester, remove tip arrester 4) be connected by branch cable line 9.
By limiting the area of 8 upper circular of sectional area and thunder and lightning conducting piece of leader cable line 10, to guarantee that it is being received
It can still work normally when the lightning stroke of larger current, effectively extend the lightning-protection system uses the time.
Preferably, the material of the arrester is copper, and the material of the metal mesh I 3 and metal mesh II 7 is copper,
The material of root terminal pad 11 and tip terminal pad 6 is also the excellent copper of electric conductivity, and the component for conducting thunder and lightning is selected copper
Material can effectively ensure that its electric conductivity.
The lightning-protection system overlaps metal mesh I 3 using metal mesh II 7 and is conducted with arrester, while arrester and master
Cable 10 is connected, and realizes that metal mesh I 3 is connected to the equipotential of leader cable line 10, by can be carried out metal mesh I 3 after thunder and lightning
With 10 pairs of flow-guiding channel water conservancy diversion of leader cable line, and arrester can also directly receive lightning strokes while conducting thunder and lightning.It should
Lightning-protection system avoids the problem of lightning-protection system global failure caused by the lightning stroke of metal mesh I 3 is broken, and can more comprehensively ensure
The operational safety of wind electricity blade.
A kind of lightning-protection system of wind electricity blade provided by the present invention is described in detail above, it is used herein
Specific case is expounded the principle of the present invention and specific embodiment, and above-described embodiment is only used to help to understand the present invention
Method and core concept.It should be pointed out that for those of ordinary skill in the art, all technologies according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, fall within the protection scope of the present invention.
Claims (9)
1. a kind of lightning-protection system of wind electricity blade, it is characterised in that: the lightning-protection system includes being fixed on wind for conduct thunder and lightning
The metal mesh I (3) on electric blade shell (1) two sides, the laying work area of every face metal mesh I (3) match substantially with girder (2), gold
Belong to that net I (3) closes on one end of root of blade and ground line is connected conducting thunder and lightning to ground, along blade on metal mesh I (3)
Axial direction interval is overlapped with multiple metal mesh II (7), and metal mesh II (7) is equipped with far from the one end of metal mesh I (3) and is used for
Conduct the thunder and lightning conducting piece (8) of thunder and lightning, thunder and lightning conducting piece (8) protrude into the internal one end of shell (1) by branch cable line (9) with
Leader cable line (10) connection is to realize that metal mesh I (3) and leader cable line (10) are connected；The tip of wind electricity blade connects equipped with tip
It dodges device (4), leader cable line (10) is separately connected tip arrester (4) and ground line so that thunder and lightning is passed through ground line conduction to ground
Face.
2. a kind of lightning-protection system of wind electricity blade according to claim 1, it is characterised in that: the thunder and lightning conducting piece (8)
For arrester.
3. a kind of lightning-protection system of wind electricity blade according to claim 2, it is characterised in that: wind electricity blade shell (1) point
The shielding flow guide bar (5) for preventing leader cable line (10) from being punctured by thunder and lightning is equipped with outside portion, shielding flow guide bar (5) connects with tip respectively
Device (4) are dodged to connect with the arrester of metal mesh I (3) one end setting for closing on blade tip.
4. a kind of lightning-protection system of wind electricity blade according to claim 2, it is characterised in that: in wind electricity blade shell (1)
Wall is fixed with the pedestal (12) connecting with branch cable line (9), and arrester is threadedly coupled with pedestal (12).
5. a kind of lightning-protection system of wind electricity blade according to claim 2, it is characterised in that: metal mesh I (3) closes on wind-powered electricity generation
One end of blade tip, which folds, to be fixed in tip terminal pad (6), and tip terminal pad (6) passes through arrester and wind electricity blade shell
(1) it connects；One end that metal mesh I (3) closes on wind turbine blade root, which folds, to be fixed in root terminal pad (11), root terminal pad
(11) it is connect by fastener with wind electricity blade shell (1).
6. a kind of lightning-protection system of wind electricity blade according to claim 2, it is characterised in that: the circle on the arrester top
The area of shape is not less than 50mm2。
7. a kind of lightning-protection system of wind electricity blade according to claim 1, it is characterised in that: the girder (2) is carbon fiber
Tie up girder.
8. a kind of lightning-protection system of wind electricity blade according to claim 1, it is characterised in that: without web inside wind electricity blade
(13) support frame (14) are equipped in region, leader cable line (10) is supported in blade by web (13) and support frame (14)
Portion.
9. a kind of lightning-protection system of wind electricity blade according to claim 1, it is characterised in that: the leader cable line (10)
Sectional area is not less than 50mm2。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548662.5A CN110219784A (en) | 2019-06-24 | 2019-06-24 | A kind of lightning-protection system of wind electricity blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548662.5A CN110219784A (en) | 2019-06-24 | 2019-06-24 | A kind of lightning-protection system of wind electricity blade |
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| CN110219784A true CN110219784A (en) | 2019-09-10 |
Family
ID=67814425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910548662.5A Pending CN110219784A (en) | 2019-06-24 | 2019-06-24 | A kind of lightning-protection system of wind electricity blade |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622906A (en) * | 2020-06-09 | 2020-09-04 | 东方电气风电有限公司 | Carbon fiber blade double-loop lightning protection system |
| CN112682275A (en) * | 2021-01-04 | 2021-04-20 | 株洲时代新材料科技股份有限公司 | Wind power blade lightning protection system and lightning protection wind power blade |
| CN112901428A (en) * | 2021-03-23 | 2021-06-04 | 国电联合动力技术(保定)有限公司 | Manufacturing method of lightning protection system of wind power blade |
| CN112901429A (en) * | 2021-03-23 | 2021-06-04 | 国电联合动力技术(保定)有限公司 | Carbon fiber girder lightning arrester and maintenance method |
| CN113048026A (en) * | 2019-12-26 | 2021-06-29 | 江苏金风科技有限公司 | Lightning protection device, lightning protection system, wind generating set and forming method |
| WO2022007610A1 (en) * | 2020-07-07 | 2022-01-13 | 株洲时代新材料科技股份有限公司 | Lightweight main beam for wind power blade having concave structure and manufacturing, main beam structure combination, and wind power blade and manufacturing method therefor |
| CN113928576A (en) * | 2021-11-19 | 2022-01-14 | 中国直升机设计研究所 | Helicopter composite material lightning protection capability restoration method |
| WO2022106351A1 (en) * | 2020-11-20 | 2022-05-27 | Lm Wind Power A/S | A spar cap assembly for a wind turbine blade with a lightning protection system |
| CN114753979A (en) * | 2022-03-31 | 2022-07-15 | 洛阳双瑞风电叶片有限公司 | Lightning stroke protection system for blades of wind generating set |
| EP4056837A1 (en) * | 2021-03-08 | 2022-09-14 | Siemens Gamesa Renewable Energy Service GmbH | Rotor blade comprising an electrical connection for a lightning protection system |
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