CN103334872B - Wind turbine blade and wind turbine - Google Patents
Wind turbine blade and wind turbine Download PDFInfo
- Publication number
- CN103334872B CN103334872B CN201310227578.6A CN201310227578A CN103334872B CN 103334872 B CN103334872 B CN 103334872B CN 201310227578 A CN201310227578 A CN 201310227578A CN 103334872 B CN103334872 B CN 103334872B
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- China
- Prior art keywords
- blade body
- trailing edge
- pneumatic equipment
- blades made
- wing flap
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- 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.)
- Expired - Fee Related
Links
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 244000145845 chattering Species 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 241001672694 Citrus reticulata Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013290 Sagittaria latifolia Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000015246 common arrowhead Nutrition 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007480 spreading Effects 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
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
-
- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/305—Flaps, slats or spoilers
-
- 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
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
-
- 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 application of the invention provides a wind turbine blade and a wind turbine. The wind turbine blade includes a blade body and at least one flap flexibly mounted at the trailing edge of the blade body, wherein the flap is provided with two panels and an elastic component; the two panels are oppositely fixed on the two sides of the elastic component and rotate by taking the elastic component as a shaft, so as to form a meshed clamping structure at one end of the elastic component and forms a folding dovetail structure at the other end of the elastic component. The flap is meshed with the trailing edge of the blade body through the clamping structure, the clamping structure is fastened with the trailing edge of the blade body through the thrust applied on the inner side of the dovetail structure, of the elastic component, so that the aerodynamic characteristics of the blade body can be improved and further chattering of the blade body is reduced.
Description
Technical field
The application relates to energy technology field, particularly relates to a kind of pneumatic equipment blades made and wind energy conversion system.
Background technique
Wind energy as a kind of clean renewable energy sources, in the past ten years because the energy, environment, Climatic issues obtain and develop rapidly.Obviously, the spatter property of wind energy, recyclability and large-scale application technology thereof increasingly mature, makes wind-power electricity generation day by day become in new energy field except nuclear energy, technology is the most ripe, most exploit condition and the most promising generation mode.
At present, wind power generating set is made up of the control of rotor, wheel hub, blade, gear-box and power transmission system, generator, Power Conditioning Unit, software and monitoring.Rotating Blades of Wind Turbine along the vibration of side very easily by the impact of vibration being parallel to chord length direction.When wind energy conversion system is idle or rotation blade brake, very easily go wrong when XOR wind energy conversion system is unloaded.
It is one of reason of vortex shedding that wind energy conversion system vibrates along side direction the initial interference caused time unloaded.If Rotating Blades of Wind Turbine is true to incoming flow poor direction, makes blunt fluid just to carrying out flow path direction, fluid may be caused from blade both sides generating period vortex shedding.The periodicity of blade surface whirlpool comes off and can cause fluctuation pressure, then causes blade side and vibrates.Pneumatic equipment blades made is elongated flexible member, if the frequency of vortex shedding is close to Natural Frequency of Blade, will cause blade flutter, reduces the wind energy conversion system life-span.
Summary of the invention
The main purpose of the application is to provide a kind of pneumatic equipment blades made and wind energy conversion system, to solve prior art Problems existing.
This application provides a kind of pneumatic equipment blades made, comprise: blade body and at least one wing flap being movably arranged on described blade body trailing edge, wherein, described wing flap has two fins and elasticity part, described two fins be relatively fixed on described elasticity part both sides and with described elasticity part for axle reverses, thus the clamping framework of occlusion is formed in one end of described elasticity part, the dovetail configuration of folding is formed at the other end of described elasticity part; Described wing flap is engaged by the trailing edge of described clamping structure with described blade body, and make the trailing edge of described clamping structure and blade body fastening by the described elasticity part thrust acted on inside described dovetail configuration thus the aerodynamic characteristic improving described blade body to reduce the flutter of described blade body.
Further, described dovetail configuration by near the position of described elasticity part to the position away from described elasticity part, the folding angle of described two fins expands in horn-like gradually, two fins near the position of described elasticity part are drawn close relatively be convenient to stressed plane thus be convenient to pull the described clamping structure of occlusion is opened to be formed at the outer surface of two fins, make two relative abductions of fin described in the position away from described elasticity part thus the Curve of wing of fine setting pneumatic equipment blades made.
Further, on the fin forming described clamping structure part, the internal surface engaged with described blade body also has adhering layer, and described clamping structure is bonded by described adhering layer and described blade body.
Further, the fin forming described clamping structure part has preset thickness thus makes the outer surface of the fin of the described clamping structure part of formation have cambered surface protruding structure.
Further, the tail end forming the fin of described dovetail configuration part has saw tooth structure or wave structure.
Further, in described dovetail configuration part, the angle formed away from two fins of the relative abduction in position of described elasticity part be 20 degree to the unspecified angle in 90 degree, the size being arranged on the fin of side, windward side in two fins of abduction relatively is simultaneously greater than the size of the fin being arranged on lee face side.
Further, in described dovetail configuration part, away from described elasticity part position described in the angle that formed of two relative abductions of fin be 30 degree to the unspecified angle in 170 degree, two fins measure-alike of abduction relatively simultaneously.
Further, when the wing flap being movably arranged on described blade body trailing edge comprises two or more, the wing flap being movably arranged on described blade body trailing edge is along the exhibition of described blade body to being spaced, and the arrangement pitch of described wing flap is arranged according to the chord length of described blade body.
Further, when the wing flap being movably arranged on described blade body trailing edge is three, described three wing flaps are arranged on the trailing edge, the trailing edge near blade root position that are close to blade tip position respectively and are positioned at the trailing edge of intermediate portion of blade body.
Present invention also provides a kind of wind energy conversion system, comprise pneumatic equipment blades made as above.
The application compared with prior art has following remarkable result:
1) by keeping at a certain distance away installation wing flap on the blade of wind energy conversion system, and engaged with blade body by clamping framework, the Curve of wing of pneumatic equipment blades made is changed, effectively improves the aerodynamic characteristic of described blade body to reduce the flutter of described blade body.
2) because the clamping structure of wing flap is less with the area engaging position of blade body, and the dovetail configuration of wing flap is stressed larger, what be therefore used alone that clamping structure can not ensure that wing flap is connected with blade body is stable, and coordinates clamping structure to make the connection of described blade body and wing flap more firm by adhering layer.
3) form windward side by the cambered surface protruding structure of the outer surface of clamping structure Partial wings thus stressed, while holding function is provided, the aerodynamic characteristic of described blade body can be improved to reduce the flutter of described blade body by side-fit dovetail configuration.
4) tail end of the fin of dovetail configuration part has saw tooth structure or wave structure, this structure can effectively reduce wing flap stressed time produce noise.
5) therefore for a wing flap, form dovetail configuration part fin between angle be fixing.The replacing of corresponding shape or size wing flap can be carried out to reach the using state of wind energy conversion system the best under application wind energy conversion system different conditions, or, after prediction according to the wind conditions of diverse geographic location, install or change the wing flap of corresponding shape, size or the angle being applicable to local wind condition.
6) difference of the angle of the dovetail configuration part of wing flap arranges and wing flap can be made not need in the running to take off, and also can form the wing flap of the interim installation operationally needing to take off.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, and form a application's part, the schematic description and description of the application, for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the structural representation of the wind energy conversion system of prior art;
Fig. 2 is a kind of pneumatic equipment blades made schematic diagram that the application provides;
Fig. 3 is the C-C schematic cross-section of the pneumatic equipment blades made of Fig. 2;
Fig. 4 a and 4b is the structure for amplifying rough schematic view of two kinds of wing flaps in Fig. 2 and Fig. 3;
Fig. 5 is the another kind of pneumatic equipment blades made schematic diagram that the application provides;
Fig. 6 is the vortex shedding schematic diagram of the pneumatic equipment blades made not installing the application;
Fig. 7 is the vortex shedding schematic diagram of the pneumatic equipment blades made installing the application.
Embodiment
For making the object of the application, technological scheme and advantage clearly, below in conjunction with drawings and the specific embodiments, the application is described in further detail.
As shown in Figure 1, in prior art, wind energy conversion system is made up of pylon 11, cabin 12, impeller, and impeller also comprises blade 10 and wheel hub 13, and its Leaf 10 forms primarily of leading edge 14, trailing edge 15 and blade tip 16.Utilize wind-force to drive windmill vane rotary, then through booster engine, the speed rotated is promoted, impel electrical power generators.When wind energy conversion system seizes up position impeller non rotating, for accurate incoming flow wind speed, first after the leading edge of each blade, can flow to trailing edge along blade surface, yaw angle is determined thus.Now, the wind that becomes a mandarin acts on blade aeromechanical side, and blade produces minimum power.When wind energy conversion system needs to generate electricity, vane propeller-changing, along with the increase of the angle of attack, blade produces enough lift and makes vane rotary, carry out the work of wind-power electricity generation thus.But, Rotating Blades of Wind Turbine along the vibration of side very easily by the impact of vibration being parallel to chord length direction.
When wind energy conversion system is idle or rotation blade brakes, or very easily go wrong when wind energy conversion system is unloaded.Such as, Rotating Blades of Wind Turbine is true to incoming flow poor direction, making blunt fluid just to carrying out flow path direction, fluid may be caused from blade both sides generating period vortex shedding (as shown in Figure 3, vortex shedding).The periodicity of blade surface whirlpool comes off and can cause fluctuation pressure, then causes blade side and vibrates.Pneumatic equipment blades made is elongated flexible member, if the frequency of vortex shedding is close to Natural Frequency of Blade, will cause blade flutter, reduces the wind energy conversion system life-span.
Embodiment one:
As shown in Figure 2, be a kind of pneumatic equipment blades made schematic diagram that the application provides; As shown in Figure 3, be the C-C schematic cross-section of pneumatic equipment blades made of Fig. 2; As shown in Figs. 4a and 4b, be the structure for amplifying rough schematic view of two kinds of wing flaps in Fig. 2 and Fig. 3; As shown in Figure 5, be the another kind of pneumatic equipment blades made schematic diagram that the application provides.
One of core of the application, be by installing wing flap in pneumatic equipment blades made, effectively prevent when wind energy conversion system is unloaded, blade is not just to incoming flow wind direction, driftage structural failure, pitch-controlled system inefficacy may be caused, need before wind direction flip-flop, regulate driftage to make incoming flow wind just to blade.Become oar rear blade to provide a blunt structure and aim at the wind that becomes a mandarin, may cause as the vortex shedding shown on the right side of Fig. 3.At this moment, three wing flaps of described installation can improve blade surface shape and aerodynamic performance, are described as follows:
Pneumatic equipment blades made described in the application comprises: blade body 21, at least one wing flap 22.Blade body 21 has leading edge 21b and trailing edge 21a, and at least one wing flap 22 is movably arranged on described blade body trailing edge 21a.When the wing flap being movably arranged on described blade body trailing edge comprises two or more, the wing flap 22 being movably arranged on described blade body trailing edge 21a is along the exhibition of described blade body 21 to being spaced, and the arrangement pitch of described wing flap 22 is arranged according to the chord length of described blade body 21.Preferably, the application is equidistantly arranged three wing flaps arranged in blade trailing edge 21a part, as shown in Figure 5, three wing flaps are arranged on the trailing edge, the trailing edge near blade root position that are close to blade tip position respectively and are positioned at the trailing edge of intermediate portion of blade body.But the application is not limited to equidistantly arrange wing flap, and described wing flap is also not limited to arrange three.
Described wing flap 22 has two fins, and described airfoil is flat structure or the plane structure with windward side and lee face.Described two fins be relatively fixed on an elasticity part 22b both sides and with described elasticity part 22b for axle reverses, thus the clamping framework 22c of occlusion is formed in one end of described elasticity part 22b, the dovetail configuration 22a of folding is formed at the other end of described elasticity part 22b.
Described wing flap 22 is engaged with the trailing edge 21a of described blade body by described clamping structure 22c, and make the trailing edge 21a of described clamping structure 22c and blade body fastening by the described elasticity part 22b thrust acted on inside described dovetail configuration 22a thus the Curve of wing of pneumatic equipment blades made is finely tuned, to improve the aerodynamic characteristic of described blade body to reduce the flutter of described blade body.
Described dovetail configuration 22a by near the position of described elasticity part 22b to the position away from described elasticity part 22b, the folding angle of described two fins expands in horn-like gradually, such structure makes two fins described in the position near described elasticity part 22a relatively draw close to be formed at the outer surface of two fins and be convenient to stressed face thus conveniently pull the clamping structure 22c of occlusion is opened, away from described elasticity part 22a position described in two relative abductions of fin thus play the effect of the Curve of wing of fine setting pneumatic equipment blades made.
As shown in Figs. 4a and 4b, on the fin forming described clamping structure 22c part, the internal surface up and down engaged with described blade body also has adhering layer 22d, and described clamping structure 22c is bonded by the trailing edge 21a of described adhering layer 22d and described blade body.Because the clamping structure of wing flap is less with the area engaging position of blade body, and the dovetail configuration of wing flap is stressed larger, what be therefore used alone that clamping structure can not ensure that wing flap is connected with blade body is stable, and coordinates clamping structure to make the connection of described blade body and wing flap more firm by adhering layer.
The fin forming described clamping structure 22c part has preset thickness thus makes the outer surface of the fin of the described clamping structure 22c part of formation have cambered surface protruding structure.Make described cambered surface projection also can form windward side by this structure thus stressed, while holding function is provided, the aerodynamic characteristic of described blade body can be improved to reduce the flutter of described blade body by side-fit dovetail configuration.
The tail end of fin forming described dovetail configuration 22a part has saw tooth structure or wave structure (zigzag fashion as arrow head part indication in Fig. 2), this structure can effectively reduce wing flap stressed time the noise that produces.
The wing flap 22 installed in the pneumatic equipment blades made that the application proposes is installed by the trailing edge of clamping structure and described blade body 21 and is changed.For a wing flap, the angle between the fin of formation dovetail configuration part is fixing.The replacing of corresponding shape or size wing flap can be carried out to reach the using state of wind energy conversion system the best under application wind energy conversion system different conditions, or, after prediction according to the wind conditions of diverse geographic location, install or change the wing flap of corresponding shape, size or the angle being applicable to local wind condition.As shown in Figure 6, be the wind behaviour under a certain geographical position, now pneumatic equipment blades made body does not install wing flap, and air-flow flows to signal through blade body.As shown in Figure 7, now pneumatic equipment blades made body has installed wing flap, air-flow isolating stable two whirlpool tail and spreading after blade body, thus can reduce the aerodynamic effects to blade body when multiple wind direction mixedly appears.
If install wing flap 22 when wind energy conversion system leaves unused in blade body 21, and do not wish to take off wing flap 22 when wind energy conversion system operates, want to allow wing flap 22 operate with blade body 21 always, this flap configurations as shown in fig. 4 a, in dovetail configuration 22a part, away from described elasticity part 22b position described in the angle e that formed of two relative abductions of fin can be set to 20 degree to the unspecified angle in 90 degree, the below of described pneumatic equipment blades made is windward side simultaneously, the size comparatively large (length is longer and/or thickness is thicker) of the fin (lower panel in Fig. 4 a) of side, windward side is arranged in two fins.
If install wing flap when wind energy conversion system leaves unused in blade body 21 temporarily, and need to take off wing flap when wind energy conversion system operates, this flap configurations as shown in Figure 4 b, in dovetail configuration 22a part, away from described elasticity part position described in the angle e that formed of two relative abductions of fin can be set to 30 degree to the unspecified angle in 170 degree, simultaneously away from measure-alike (length is identical and/or thickness is identical) of two fins of the relative abduction of the position of described elasticity part.
Embodiment two:
As in Figure 2-4, the application proposes a kind of wind energy conversion system, is provided with the wing flap as described in embodiment one at the trailing edge of blade.
The foregoing is only the embodiment of the application, be not limited to the application, for a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the right that all should be included in the application.
Claims (10)
1. a pneumatic equipment blades made, is characterized in that, comprising: blade body and at least one wing flap being movably arranged on described blade body trailing edge, wherein,
Described wing flap has two fins and elasticity part, described two fins be relatively fixed on described elasticity part both sides and with described elasticity part for axle reverses, thus the clamping framework of occlusion is formed in one end of described elasticity part, the dovetail configuration of folding is formed at the other end of described elasticity part;
Described wing flap is engaged by the trailing edge of described clamping structure with described blade body, and make the trailing edge of described clamping structure and blade body fastening by the described elasticity part thrust acted on inside described dovetail configuration thus the aerodynamic characteristic improving described blade body to reduce the flutter of described blade body.
2. pneumatic equipment blades made as claimed in claim 1, is characterized in that,
Described dovetail configuration by near the position of described elasticity part to the position away from described elasticity part, the folding angle of described two fins expands in horn-like gradually, two fins near the position of described elasticity part are drawn close relatively be convenient to stressed plane thus be convenient to pull the described clamping structure of occlusion is opened to be formed at the outer surface of two fins, make two relative abductions of fin described in the position away from described elasticity part thus the Curve of wing of fine setting pneumatic equipment blades made.
3. pneumatic equipment blades made as claimed in claim 1, is characterized in that,
On the fin forming described clamping structure part, the internal surface engaged with described blade body also has adhering layer, and described clamping structure is bonded by described adhering layer and described blade body.
4. pneumatic equipment blades made as claimed in claim 1, is characterized in that,
The fin forming described clamping structure part has preset thickness thus makes the outer surface of the fin of the described clamping structure part of formation have cambered surface protruding structure.
5. pneumatic equipment blades made as claimed in claim 1, is characterized in that,
The tail end forming the fin of described dovetail configuration part has saw tooth structure or wave structure.
6. pneumatic equipment blades made as claimed in claim 2, is characterized in that,
In described dovetail configuration part, the angle formed away from two fins of the relative abduction in position of described elasticity part be 20 degree to the unspecified angle in 90 degree, the size being arranged on the fin of side, windward side in two fins of abduction relatively is simultaneously greater than the size of the fin being arranged on lee face side.
7. pneumatic equipment blades made as claimed in claim 2, is characterized in that,
In described dovetail configuration part, away from described elasticity part position described in the angle that formed of two relative abductions of fin be 30 degree to the unspecified angle in 170 degree, two fins measure-alike of abduction relatively simultaneously.
8. pneumatic equipment blades made as claimed in claim 1, is characterized in that,
When the wing flap being movably arranged on described blade body trailing edge comprises two or more, the wing flap being movably arranged on described blade body trailing edge is along the exhibition of described blade body to being spaced, and the arrangement pitch of described wing flap is arranged according to the chord length of described blade body.
9. pneumatic equipment blades made as claimed in claim 8, is characterized in that,
When the wing flap being movably arranged on described blade body trailing edge is three, described three wing flaps are arranged on the trailing edge, the trailing edge near blade root position that are close to blade tip position respectively and are positioned at the trailing edge of intermediate portion of blade body.
10. a wind energy conversion system, is characterized in that, comprises pneumatic equipment blades made as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310227578.6A CN103334872B (en) | 2013-06-08 | 2013-06-08 | Wind turbine blade and wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310227578.6A CN103334872B (en) | 2013-06-08 | 2013-06-08 | Wind turbine blade and wind turbine |
Publications (2)
| Publication Number | Publication Date |
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| CN103334872A CN103334872A (en) | 2013-10-02 |
| CN103334872B true CN103334872B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310227578.6A Expired - Fee Related CN103334872B (en) | 2013-06-08 | 2013-06-08 | Wind turbine blade and wind turbine |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014213930A1 (en) * | 2014-07-17 | 2016-01-21 | Wobben Properties Gmbh | Rotor blade tip trailing edge |
| GB201417924D0 (en) | 2014-10-10 | 2014-11-26 | Vestas Wind Sys As | Wind turbine blade having a trailing edge flap |
| CN108150344A (en) * | 2017-12-25 | 2018-06-12 | 江苏金风科技有限公司 | For the denoising structure, blade and wind power generating set of wind generator set blade |
| CN108716451A (en) * | 2018-07-30 | 2018-10-30 | 中科国风检测（天津）有限公司 | Trailing edge device combining functions of increasing functions, reducing noise and preventing lightning and installation method |
| CN109826752A (en) * | 2018-08-30 | 2019-05-31 | 国网辽宁省电力有限公司本溪供电公司 | A kind of generator |
| US11408394B2 (en) * | 2018-09-17 | 2022-08-09 | Siemens Gamesa Renewable Energy A/S | Sensor device for an aerodynamic element |
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| WO2008052677A3 (en) * | 2006-11-02 | 2008-09-18 | Lignum Vitae Ltd | Wind rotor blade and wind turbine comprising such blade |
| CN101614184A (en) * | 2008-06-27 | 2009-12-30 | 歌美飒创新技术公司 | Blade insert |
| EP2549097A1 (en) * | 2011-07-20 | 2013-01-23 | LM Wind Power A/S | Wind turbine blade with lift-regulating means |
| CN203297032U (en) * | 2013-06-08 | 2013-11-20 | 中国大唐集团科学技术研究院有限公司 | Wind turbine vane and wind turbine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110142676A1 (en) * | 2010-11-16 | 2011-06-16 | General Electric Company | Rotor blade assembly having an auxiliary blade |
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Patent Citations (4)
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| WO2008052677A3 (en) * | 2006-11-02 | 2008-09-18 | Lignum Vitae Ltd | Wind rotor blade and wind turbine comprising such blade |
| CN101614184A (en) * | 2008-06-27 | 2009-12-30 | 歌美飒创新技术公司 | Blade insert |
| EP2549097A1 (en) * | 2011-07-20 | 2013-01-23 | LM Wind Power A/S | Wind turbine blade with lift-regulating means |
| CN203297032U (en) * | 2013-06-08 | 2013-11-20 | 中国大唐集团科学技术研究院有限公司 | Wind turbine vane and wind turbine |
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