CN104963808A - Wind generator blade having W-shaped tips and wind generator - Google Patents
Wind generator blade having W-shaped tips and wind generator Download PDFInfo
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- CN104963808A CN104963808A CN201510434946.3A CN201510434946A CN104963808A CN 104963808 A CN104963808 A CN 104963808A CN 201510434946 A CN201510434946 A CN 201510434946A CN 104963808 A CN104963808 A CN 104963808A
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- 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
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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to the technical field of wind power generation, and particularly to a wind generator blade having W-shaped tips. The wind generator blade having the W-shaped tips comprises a blade body, tips of the blade body are provided with W-shaped grooves. The invention also provides a wind generator comprising blades having the W-shaped tips, a fairing, a generator, a controller, a storage battery, an inverter and a current load. According to the wind generator blade having the W-shaped tips, generator blade tips in the horizontal axis is grooved, the tip structure is changed into a W-shaped structure, the tip structure is improved and designed on the premise of no cost raise, the process is simple, the cost is low, integrated design is convenient, and large scale production can be achieved. At the same time, on the premise that the output power is almost the same, the noise of wind generator blade tips can be reduced, the fatigue degree of blades can be reduced, and the service life of the wind generator can be prolonged.
Description
Technical field
The present invention relates to wind energy power technology field, especially relating to a kind of blade tip is the pneumatic equipment blades made of W type structure and the wind energy conversion system with W type tip structure blade.
Background technique
Along with the fast development of wind energy industry, wind energy turbine set distance residential belt is more and more nearer, and wind energy conversion system aerodynamic noise problem highlights day by day, has caused the concern of some environmental protection organizations abroad, and receives the complaint from resident near wind energy turbine set successively.For this reason, each state has formulated the regulations of wind energy conversion system aerodynamic noise being carried out to strict restriction all in succession.Wind energy conversion system aerodynamic noise problem has become one of principal element of restriction wind energy conversion system development at present, therefore urgently develops effective wind energy conversion system aerodynamic noise suppression technology.
Axis Wind Turbine With A Tip Vane is the main region that aerodynamic force produces, during the blade rotary motion of finite length, due to the pressure difference of blade tip pressure side and suction surface, cause pressure side air-flow to walk around leaf apex end surface and flow into suction surface, both destroyed blade tip two-dimensional flow situation, and can tip vortex have been produced simultaneously.Tip vortex causes the one of the main reasons that blade efficiency reduces, fatigue load increases.In order to improve the power coefficient of wind energy conversion system and reduce wind energy conversion system noise, the researcher of countries in the world proposes various method, the aerofoil profile of the blade optimized as adopted aeroperformance, design low-noise high-efficiency, increase diffuser (Diffuser) in wind wheel periphery, add wing flap at trailing edge, add winglet (Tip Vane) etc. at blade tip.Above research method is all change wind energy conversion system aerodynamic characteristic to reduce wind energy conversion system aerodynamic noise by adding pneumatic original paper and design new blade on blade after blade design completes, and does not have not start with from blade design root to deal with problems.
Summary of the invention
The present invention, at horizontal-shaft wind turbine blade tip fluting, makes tip structure change, presents W type structure, under the prerequisite not increasing cost, carry out Curve guide impeller to tip structure, reduces Axis Wind Turbine With A Tip Vane noise, reduces the degree of fatigue of blade, prolongation wind energy conversion system working life.
A kind of blade tip provided by the invention is the pneumatic equipment blades made of W type structure, comprises blade body, and the blade tip position of blade body has W type groove.
Present invention also offers a kind of wind energy conversion system, comprise the blade of tip band W type groove, air guide sleeve, generator, controller, storage battery, inverter and current loading; Air guide sleeve is positioned at the front end of blade, and generator is positioned at the rear portion of blade, and generator, storage battery are all electrically connected with controller, and storage battery, current loading are all electrically connected with inverter.
A kind of blade tip provided by the invention is the pneumatic equipment blades made of W type structure; slot at horizontal-shaft wind turbine blade tip; tip structure is changed; present W type structure; under the prerequisite not increasing cost, carry out Curve guide impeller to tip structure, technique is simple, and expense is low; be convenient to integrated design, be produced on a large scale.Meanwhile, when ensureing that output power is substantially constant, reducing Axis Wind Turbine With A Tip Vane noise, reducing the degree of fatigue of blade, extend wind energy conversion system working life.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 for blade tip that the embodiment of the present invention provides be the schematic diagram at the pneumatic equipment blades made blade tip position of W type structure;
Fig. 2 is testing section point layout schematic diagram when territory, wind energy conversion system near-wake region angle of swing that the embodiment of the present invention provides is 90 °;
Fig. 3 is the wind speed of wind energy conversion system and the relationship change plotted curve of power before and after blade tip of the present invention remodeling;
Fig. 4 is wind speed and the power coefficient change curve of wind energy conversion system before and after blade tip of the present invention remodeling;
Fig. 5 is that before and after blade tip of the present invention remodeling, wind energy conversion system is in tip-speed ratio λ=7.5, and x=30cm, tests 7 measuring points rotation fundamental frequency noise variation diagrams that angle of rotation is 90 °;
Fig. 6 is that before and after blade tip of the present invention remodeling, wind energy conversion system is in tip-speed ratio λ=7.5, and x=30cm, test angle of rotation is the tip vortex shedding frequence noise variation diagram of 7 measuring points of 90 °.
Embodiment
Be clearly and completely described technological scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
As shown in Figure 1, a kind of blade tip provided by the invention is the pneumatic equipment blades made of W type structure, comprises blade body, and the blade tip position of blade body has W type groove, and blade tip is that the geometric parameter of W type mechanism comprises width a, high h, angle of release θ.
Present invention also offers a kind of wind energy conversion system, comprise the blade of tip band W type groove, air guide sleeve, generator, controller, storage battery, inverter and current loading; Air guide sleeve is positioned at the front end of blade, and generator is positioned at the rear portion of blade, and generator, storage battery are all electrically connected with controller, and storage battery, current loading are all electrically connected with inverter.
Based on the empty theory of mechanics of wind energy conversion system air, key parameter (as tip speed ratio, rotor diameter, reynolds' number, Airfoil Aerodynamic Performance and the blade loading etc.) impact on wind mill performance of labor research blade; And then on whole blade design, adopt the wind mill airfoil series of brand-new design, propose with Maximun power coefficient and unit area Energy Maximization as Model for Multi-Objective Optimization, with chord length, torsional angle for design variable, effective control blade loading, to improve blade fatigue life, sets up novel wind motor blade design and optimized mathematical model.Apply this to design a model, when rated output coefficient, thrust coefficient and moment coefficient, partial power's coefficient in each infinitesimal foline face, thrust coefficient and moment coefficient are carried out the cumulative summation of multistage, obtain the aeroperformance coefficient of whole blade.Adopt the method design pneumatic equipment blades made profile and blade tip profile and retrofit, obtain the pneumatic equipment blades made that blade tip is W type structure.
Design concrete steps:
The first step considers the probability distribution of the actual wind field of pneumatic equipment blades made, carries out computation and analysis to wind energy conversion system DESIGNED FEATURE wind speed;
Second step, by comparative analysis, chooses the good wind mill airfoil of aeroperformance; With the unit area generated energy of wind energy conversion system for objective function, adopt the sub-continuous multi-stage superposition method of reason to combine the optimizing Design Software developed, determine blade key parameter, design a model pneumatic equipment blades made;
3rd step is carried out local improving to the blade profile parameter that wind mill airfoil constructs and is repaiied type, mainly for blade tip remodeling, obtains the pneumatic equipment blades made that blade tip is W type structure.
In order to accurate full test blade tip is not with the noise characteristic of wind energy conversion system that W type fluting and tip band W type are slotted, acoustic array method 7 measuring points on the holding wire of wind wheel plane of rotation 30cm cross section angle of swing when being 90 ° of adjusting the distance are utilized to test.Its test zone 3-D walls and floor is defined as, be wind wheel plane of rotation with wind wheel rotational axis vertical and by the plane definition of pneumatic equipment blades made blade tip aerofoil profile leading edge point, the intersection point of wind wheel running shaft and this plane is wind wheel rotating center, outwards moves horizontally 30cm be set to true origin O along wind wheel rotating center to wind wheel plane of rotation radial direction.Each measuring point interval 10cm on holding wire, shown in concrete test arrangement schematic diagram 2.
In the present embodiment, adopt the W type blade tip of 2 kinds of different sizes, W type blade tip 1 (a=1.4cm, h=2.5cm, θ=28 °) and W type blade tip 2 (a=1.4cm, h=5.4cm, θ=14 °) respectively, then the external characteristics of rear 2 kinds of different W type tip structure wind energy conversion systems of not retrofiting and retrofit is tested, the relationship change curve of its wind speed and power is shown in Fig. 3, and wind speed and power coefficient Cp change curve are shown in Fig. 4.As can be seen from Fig. 3 and Fig. 4, in measured wind speed range between 3-14m/s, the output power of W type blade tip 1 wind energy conversion system and power coefficient not to be retrofited wind energy conversion system lower than blade tip; In the low wind speed range of 3-7m/s, W type blade tip 2 wind energy conversion system output power and power coefficient not to be retrofited wind energy conversion system higher than blade tip, in 7-14m/s within the scope of high wind speed, W type blade tip 2 wind energy conversion system output work and power coefficient rate not to be retrofited wind energy conversion system and W type blade tip 1 wind energy conversion system lower than blade tip.As can be seen here, the size of W type blade tip height h has considerable influence to wind energy conversion system power performance in low middle wind speed section, less in the impact of high wind speed section, and W type blade tip 2 wind energy conversion system is slightly larger on the impact of wind energy conversion system external characteristics than W type blade tip 1 wind energy conversion system.Power corresponding to rated wind speed 13m/s is respectively blade tip and does not retrofit wind energy conversion system 316W, W type blade tip 1 wind energy conversion system 307W, W type blade tip 2 wind energy conversion system 304W.By calculating, power drop 3.8% after power drop 2.8%, W type blade tip 2 wind energy conversion system remodeling after W type blade tip 1 wind energy conversion system remodeling, it can thus be appreciated that the W type tip structure wind energy conversion system after remodeling affects little on wind energy conversion system power and wind energy utilization.
In the present embodiment, by the analysis to specified tip-speed ratio λ=7.5 time blade tip remodeling anterior-posterior horizontal axle wind mill wind wheel blade tip downstream 3D region noise pattern, the spectrogram of Axis Wind Turbine With A Tip Vane noise region is that tip vortex shedding frequence, the wind-tunnel power fan mainly produced by the rotation fundamental frequency of wind wheel blade and harmonic wave, blade rotary rotates the frequency produced and form.We adopt the W type blade tip of 2 kinds of different sizes, W type blade tip 1 (a=1.4cm, h=2.5cm, θ=28 °) and W type blade tip 2 (a=1.4cm, h=5.4cm, θ=14 °) respectively, then test and do not retrofit and retrofit rear 2 kinds of different W type tip structure wind energy conversion systems when incoming flow wind speed 13m/s, tip-speed ratio λ=7.5, Fig. 5 is shown in the change of the rotational noise corresponding to rotation fundamental frequency 72Hz that x=30cm tests 7 measuring points that angle of rotation is 90 °, and Fig. 6 is shown in the blade tip noise change corresponding to tip vortex shedding frequence 357Hz.
As seen from Figure 5, the impact produced the rotational noise of wind wheel after blade tip remodeling, makes the spectrogram peaks corresponding to the frequency of rotation fundamental frequency and harmonic relationships thereof (namely rotational noise) in test zone, have obvious downward trend.As seen from Figure 6, do not retrofit wind energy conversion system and W type blade tip 1 wind energy conversion system of blade tip has tip vortex to pass through at measuring point 5, and the sound pressure level of measuring point 5 tip vortex noise is raised; W type blade tip 2 wind energy conversion system has tip vortex to pass through at measuring point 6, and the sound pressure level of measuring point 6 tip vortex noise is raised, but all lower than blade tip of not retrofiting.It can thus be appreciated that, reduce the generation of tip vortex noise and rotational noise after blade tip remodeling, and blade tip height h becomes the key factor affecting tip vortex noise size and tip vortex movement locus.
Tested by wind energy conversion system external characteristics, because W type blade tip height is different after discovery remodeling, wind energy conversion system power performance has different Changing Patterns in different wind speed section, wherein W type blade tip height is higher, its power characteristic and power coefficient are comparatively large in low wind speed section impact, and the rated power of its wind energy conversion system has along with the increase of W type blade tip height and declines more by a small margin.In tip-speed ratio λ=7.5 time, by the test of W type blade tip remodeling anterior-posterior horizontal axle wind mill wind wheel blade tip downstream 3D region sound radiation impact, the spectrogram peaks corresponding to frequency making wind wheel rotate fundamental frequency and harmonic relationships thereof after finding remodeling has obvious downward trend.W type blade tip has an impact to the spectrogram peaks corresponding to the shedding frequence of tip vortex simultaneously, make it to reduce, the height of W type blade tip determines the degree of wind wheel rotational noise and tip vortex noise reduction, and blade tip height becomes the important parameter affecting wind wheel rotational noise, tip vortex noise and tip vortex movement locus.
By the remodeling to tip structure, a kind of blade tip provided by the invention is pneumatic equipment blades made and the wind energy conversion system of W type structure, when ensureing that output power is substantially constant, reduces Axis Wind Turbine With A Tip Vane noise, reduce the degree of fatigue of blade, extend wind energy conversion system working life.
Last it is noted that above each embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristics; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technological scheme.
Claims (2)
1. blade tip is a pneumatic equipment blades made for W type structure, it is characterized in that, comprises blade body, and the blade tip position of described blade body has W type groove.
2. a wind energy conversion system, is characterized in that, comprises the blade of tip band W type groove as claimed in claim 1, air guide sleeve, generator, controller, storage battery, inverter and current loading;
Described air guide sleeve is positioned at the front end of described blade, and described generator is positioned at the rear portion of described blade, and described generator, described storage battery are all electrically connected with described controller, and described storage battery, described current loading are all electrically connected with described inverter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510434946.3A CN104963808B (en) | 2015-07-22 | 2015-07-22 | Blade tip is in the pneumatic equipment bladess and wind energy conversion system of W type structures |
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| CN201510434946.3A CN104963808B (en) | 2015-07-22 | 2015-07-22 | Blade tip is in the pneumatic equipment bladess and wind energy conversion system of W type structures |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386425A (en) * | 2017-08-09 | 2019-02-26 | 新疆工程学院 | The pneumatic equipment bladess and wind energy conversion system of a kind of linear micro- cavernous structure of blade inlet edge |
| CN109899230A (en) * | 2017-12-07 | 2019-06-18 | 代元军 | A kind of blade tip is in the pneumatic equipment bladess and wind energy conversion system of fusion type structure |
| CN109899228A (en) * | 2017-12-07 | 2019-06-18 | 代元军 | A kind of blade tip is in the pneumatic equipment bladess and wind energy conversion system of double fork structures |
| CN110173451A (en) * | 2019-07-07 | 2019-08-27 | 代元军 | A kind of blade tip is in the mining partial axial ventilator of W type structure |
| CN115389176A (en) * | 2021-05-24 | 2022-11-25 | 中国航发商用航空发动机有限责任公司 | Low-cycle fatigue composite test device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003333A (en) * | 2010-12-21 | 2011-04-06 | 中国科学院工程热物理研究所 | Wind turbine blade with de-noising function |
| CN102606417A (en) * | 2012-03-19 | 2012-07-25 | 西安交通大学 | Blade structure of wind power generator with serrated blade apexes |
| CN103452766A (en) * | 2013-09-04 | 2013-12-18 | 代元军 | Wind turbine with V-shaped grooved structure at tip of blade |
| CN204851530U (en) * | 2015-07-22 | 2015-12-09 | 代元军 | Apex is wind turbine blades and wind energy conversion system of W type structure |
-
2015
- 2015-07-22 CN CN201510434946.3A patent/CN104963808B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003333A (en) * | 2010-12-21 | 2011-04-06 | 中国科学院工程热物理研究所 | Wind turbine blade with de-noising function |
| CN102606417A (en) * | 2012-03-19 | 2012-07-25 | 西安交通大学 | Blade structure of wind power generator with serrated blade apexes |
| CN103452766A (en) * | 2013-09-04 | 2013-12-18 | 代元军 | Wind turbine with V-shaped grooved structure at tip of blade |
| CN204851530U (en) * | 2015-07-22 | 2015-12-09 | 代元军 | Apex is wind turbine blades and wind energy conversion system of W type structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386425A (en) * | 2017-08-09 | 2019-02-26 | 新疆工程学院 | The pneumatic equipment bladess and wind energy conversion system of a kind of linear micro- cavernous structure of blade inlet edge |
| CN109899230A (en) * | 2017-12-07 | 2019-06-18 | 代元军 | A kind of blade tip is in the pneumatic equipment bladess and wind energy conversion system of fusion type structure |
| CN109899228A (en) * | 2017-12-07 | 2019-06-18 | 代元军 | A kind of blade tip is in the pneumatic equipment bladess and wind energy conversion system of double fork structures |
| CN110173451A (en) * | 2019-07-07 | 2019-08-27 | 代元军 | A kind of blade tip is in the mining partial axial ventilator of W type structure |
| CN115389176A (en) * | 2021-05-24 | 2022-11-25 | 中国航发商用航空发动机有限责任公司 | Low-cycle fatigue composite test device |
| CN115389176B (en) * | 2021-05-24 | 2023-11-10 | 中国航发商用航空发动机有限责任公司 | Low cycle fatigue composite test device |
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| CN104963808B (en) | 2018-03-27 |
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Effective date of registration: 20170804 Address after: 830023 the Xinjiang Uygur Autonomous Region Urumqi economic and Technological Development Zone (Toutun River District) Aydingkol Lake Road No. 1350 Applicant after: Xinjiang Institute of Engineering Address before: 830091 Nanchang road the Xinjiang Uygur Autonomous Region Urumqi shayibake District No. 236 Xinjiang College of Engineering Applicant before: Dai Yuanjun |
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Inventor after: Dai Yuanjun Inventor after: Li Baohua Inventor after: Yuan Xingbiao Inventor after: Ren Changzai Inventor after: Cui Zutao Inventor after: Zhou Linyuan Inventor before: Dai Yuanjun Inventor before: Li Baohua Inventor before: Yuan Xingbiao Inventor before: Ren Changzai Inventor before: Cui Zutao Inventor before: Zhou Linyuan |
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