CN207297229U - A kind of joint of wind power generating set increases work(structure - Google Patents
A kind of joint of wind power generating set increases work(structure Download PDFInfo
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- CN207297229U CN207297229U CN201720788625.8U CN201720788625U CN207297229U CN 207297229 U CN207297229 U CN 207297229U CN 201720788625 U CN201720788625 U CN 201720788625U CN 207297229 U CN207297229 U CN 207297229U
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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
Abstract
A kind of joint the utility model discloses wind power generating set increases work(structure, while carries out increasing work(using two or three pair of Wind turbines of three kinds of spoiler, vortex generator, gurney flap increasing work(annexes.And three kinds of increasing work(annexes, the geometric shape according to blade body first optimize the size of three kinds of increasing work(annexes；After the appearance and size for determining three, with reference to the actual wind regime of wind field characteristic and fan operation situation by the way of co-design, every layout for increasing work(annex is optimized.Using co-design mode, it can eliminate or weaken using only a kind of unfavorable factor for increasing work(annex.In addition, by co-design, the aeroperformance of wind wheel blade can be farthest lifted, and then lifts the generated energy of unit.And use and increase the lifting that work(annex carries out generated energy, it is smaller for the loading effect of unit, and it is notable to increase effect rate for situations such as low latitude air tightness, low wind speed region, and wind speed and wind speed round mismatch.
Description
Technical field
Wind-driven generator technical group field is the utility model is related to, more particularly to a kind of joint of wind power generating set increases work(
Structure and method.
Background technology
To improve the aerodynamic characteristic of wind electricity blade, the increasing work(such as vortex generator, spoiler, gurney flap is installed on blade
Annex has become one of main method of lifting unit generated energy, extends compared to blade and increases work(scheme, increases work(using annex
Smaller for the loading effect of unit and its parts, easy for construction, period of cost recovery is short, is that a kind of sexual valence is higher, risk
Less increasing work(mode.At present, more generally single annex carries out increasing work(for industry application, and wherein flow spoiler and vortex occurs
Device is relatively broad, has obtained certain increasing effect fruit.And the case for combining increasing work(for above-mentioned three kinds of annexes is less, it is reported that,
Joint increases work(less effective, fails to promote and apply.
Utility model content
The purpose of the utility model is to overcome the deficiency of above-mentioned technology, there is provided a kind of joint of wind power generating set increases work(
Structure and method.
The utility model to achieve the above object, using following technical scheme：A kind of joint of wind power generating set increases work(
Structure, the structure is to use two kinds at the same time on wind electricity blade, or three kinds of following optimum organizations for increasing work(annex are to wind-force
Generating set carries out increasing work(, and it is respectively spoiler, vortex generator, gurney flap that described three kinds, which increase work(annex, the spoiler
In the range of maximum chord length to the blade root of blade pressure surface, before the vortex generator is installed on blade suction surface distance
In the range of the chord length of edge 5%-50%, the gurney flap is installed on the trailing edge of blade pressure surface.
Preferably, the thickness of the vortex generator uses 0.5-3mm, highly uses 10mm- according to blade locality aerofoil profile
The scope of 150mm, the local range of angles of attack of vortex generator is between 8 ° to 24 °.
Preferably, the gurney flap uses L-type shape, wherein, horizontal sides are used to be bonded with blade shell, Ge Ni
The height of wing flap uses 10mm-100mm scopes.
Preferably, using two kinds of increasing work(annexes, described two increasing work(annexes are spoiler and vortex generator, alternatively, being
Vortex generator and gurney flap.
Preferably, by the way of co-design three kinds are increased with work(annex or the layout of two kinds of increasing work(annexes optimizes,
After determining a kind of installation site for increasing work(annex, the angle of attack, flow field, pressure and circular rector point according to each section of installed position
Cloth, then aid in increasing using other one or two the aerodynamic characteristic of work(annex change blade locality aerofoil profile, further suppress gas
Flow point stream, postpones stall point, increases the effective camber of local aerofoil profile, lifts lift coefficient, the increasing effect fruit being optimal.
Preferably, the spoiler, vortex generator, gurney flap are prepared using high molecular material or composite material, tool
There are certain light aging resisting, moisture-proof thermal environment, corrosion resistance.
Preferably, the spoiler, vortex generator, gurney flap use structural adhesive with the bonding way of blade
Or pressure sensitive adhesive is bonded.
Compared with prior art, the beneficial effects of the utility model are:Use spoiler, vortex generator, Ge Ni at the same time
Two or three pair of Wind turbines of three kinds of increasing work(annexes of wing flap carry out increasing work(.And three kinds of increasing work(annexes, according to blade body
Geometric shape first optimizes the size of three kinds of increasing work(annexes；It is real with reference to wind field after the appearance and size for determining three
The characteristic and fan operation situation of border wind regime optimize every layout for increasing work(annex by the way of co-design.Adopt
With co-design mode, it can eliminate or weaken using only a kind of unfavorable factor for increasing work(annex.In addition, by co-design,
The aeroperformance of wind wheel blade can be farthest lifted, and then lifts the generated energy of unit.And increasing work(annex is used to be sent out
The lifting of electricity, it is smaller for the loading effect of unit, and for low latitude air tightness, low wind speed region, and wind speed and wind wheel
It is notable that situations such as rotating speed mismatches increases effect rate.
Brief description of the drawings
Fig. 1 show the utility model and increases work(area schematic；
Fig. 2 show spoiler scheme of installation；
Fig. 3 show vortex generator scheme of installation；
Fig. 4 show gurney flap scheme of installation.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
It should be noted that " connection " described herein and the word for expressing " connection ", such as " being connected ",
" connected " etc., it both may refer to a certain component and had been directly connected to another component, and can also refer to a certain component and pass through other portions
Part is connected with another component.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.
Increase the effect of work(for three kinds of annex joints of optimization, We conducted substantial amounts of wind tunnel test, it is determined that each increasing work(is attached
Relative position between part, and positioned in detail by numerical modeling analysis, finally definite combined optimization increases work(scheme.At present
Actual increasing term of works mesh is applied to according to this scheme, increases work(and works well, by third party's acceptance(check), meet design object.
Co-design is carried out using a variety of increasing work(annexes, a certain unfavorable factor for increasing work(annex can be minimized, and
A variety of synergistic effects for increasing work(annex, can farthest lift generating efficiency, reach more preferably increasing effect fruit, are formed effective
Technical reform scheme and popularization and application.
As Figure 1-Figure 4, the utility model provides a kind of joint increasing work(structure of wind power generating set, while uses and disturb
Flowing plate 1, vortex generator 2,3 three kinds of gurney flap, two or three of increasing work(annex carry out increasing work(to wind power generating set.
The size of three kinds of increasing work(annexes is optimized first；The shape of three is determined according to the aerodynamic characteristic of blade
After size, in conjunction with the actual wind regime of wind field characteristic by the way of co-design, every layout for increasing work(annex is carried out excellent
Change.Using three kinds of schemes for increasing work(annex and carrying out co-design and increasing work(, under the premise of less on rack load influence, maximum journey
The aeroperformance of the lifting wind wheel blade of degree, for low latitude air tightness, low wind speed region, and wind speed and wind speed round mismatch
Situations such as to increase effect rate obvious.
Increase work(scheme calculates the actual wind regime of Main Basiss wind field, the actual power curve of unit, the aerodynamic configuration of blade
Characteristic, optimization increase work(accessory size, combination and installation site.
According to actual power curve, realize and increase the region of work(mainly in the region below wind turbine rated power.
Wind regime is analyzed with reference to the characteristic of wind field first, the annual mean wind speed of Main Basiss wind field, atmospheric density with
And the actual power curve of wind turbine carries out multi-state stable state Aerodynamic characteristics, the size of each increasing work(annex and initial installation are determined
Position.Wherein, the parameter of the power of the assembling unit is influenced as shown by the following formula：
Wherein, V:Mean wind speed, CP：Power coefficient, η：System effectiveness, A:Wind sweeping area.Wherein:CP=f (λ, Re ...) is i.e.
Power coefficient is the function of the factor such as tip-speed ratio, turbulence intensity.
After the completion of Preliminary design, analysis is special according to its flowing with a kind of flow regime for increasing work(annex rear blade surface
Property further optimize another installation site for increasing work(annex.Flow behavior after last comprehensive analysis two ways coordinates improves
Situation, returns and is initially iterated design containing a kind of work(annex that increases.Until reaching design object.For the third increasing work(annex peace
The optimization of holding position also using aforesaid way two-by-two coordinate or three kinds of situations coordinate, using above-mentioned similar optimization side
Method.Increase work(annex to three kinds to optimize.
First, determine a kind of installation site of annex, can be simulated with equation below：
Wherein, δ is vorticity source distance, and D is arrangement period.
Influence of its position for induced velocity is calculated according to equation below again：
Wherein：V ', w ' are the fluctuation velocity component at space any point.
Torsional angle
Relevant speed
Finally obtain the resistance distribution characteristics in flow field, such as following formula：
In formula：Г is the intensity in induction whirlpool.
Opened up to averagely, solved according to k-w models, then the incrementss of Turbulent Kinetic are：
Wherein：ρ is atmospheric density
Using above-mentioned algorithm, to increasing work(annex after blade surface installation, fluid dynamic energy knots modification is calculated, is such as related to
And other annexes that expire are, it is necessary on this basis, iterate.
Increase work(annex spoiler, vortex generator, gurney flap to use comprising being not limited to tie with the bonding way of blade
Structure adhesive or pressure sensitive adhesive are bonded, and blade surface is surface-treated before bonding, its processing mode includes and unlimited
In cleaning, the operation such as polishing.
As shown in Figure 1.Wherein, high tip speed ratio Operational Zone is belonged to for AB sections, BC sections are optimized operation area, and CD sections are low point speed
Than Operational Zone, DE sections are specified Operational Zone.Pneumatic accessories increases the power of tri- sections of work(main lift AB, BC, CD, so as to fulfill to year
The lifting of generated energy.
For the scheme of vortex generator and spoiler co-design, in the changeover portion region of blade, since each section is attacked
Angle is larger, and suction surface stalling point is nearer away from leading edge point, causes air-flow separation too early, pneumatic efficiency is very low.For to greatest extent
Lifting pneumatic efficiency, can use vortex generator and spoiler combination increase work(scheme.Vortex generator can lose local aerofoil profile
Speed postpones and lifts maximum lift coefficient, and the spoiler installed additional on this basis can increase the effective camber of aerofoil profile, can further carry
The lift coefficient of local aerofoil profile is risen, and then improves the generated energy in blade transition section region, reduces the incision wind speed of unit.So as to reach
Increase the effect of work(to collaboration.
It is for the scheme of vortex generator and gurney flap co-design under its collective effect, the liter of linearity range can be made
Force coefficient and stall section lift coefficient are improved.Meanwhile airfoil stall postpones, maximum lift coefficient lifting.
For vortex generator with gurney flap co-design, resistance coefficient is also presented greatly while lift coefficient is lifted
Width is lifted.Wherein, in the case of Low Angle Of Attack, the two coupling resistance coefficient is more than big situations of attack.The joint of this two kinds increasing work(annexes
Two kinds of the layout needed is designed, farthest to play its favourable aspect.
Preferably, spoiler is mostly installed in the range of maximum chord length to the blade root of blade pressure surface.As shown in Fig. 2,
For improving contribution of the changeover portion thick wing type of blade for wind wheel moment of torsion.
Preferably, spoiler shape uses T-shaped, or L-type shape, but not limited to this shape.Wherein horizontal sides are used for same leaf
Piece housing is bonded.The height of spoiler is optimized, using 100mm-400mm scopes.
Preferably, the stickup curve of spoiler should carry out fairing processing.
Preferably, vortex generator is mostly installed at blade suction surface in the range of the chord length of leading edge 5%-50%, tool
Body, according to wind tunnel test data and the method for numerical simulation carry out that optimization installation site is calculated.For suppressing to flow
Separation, lifts the maximum lift coefficient of local aerofoil profile.Vortex generator is installed on blade can use same specification or difference
The vortex generator of specification size.The installation site of different sections can carry out curve transition and straight transitions.It can also use
Two ways is used in combination.
Preferably, vortex generator thickness uses 0.5-3mm.Height can use 10mm-150mm according to blade locality aerofoil profile
Scope.Vortex generator range of angles of attack is between 8 ° to 24 °.
Preferably, gurney flap, is mostly installed at the trailing edge of blade pressure surface, and Numerical Simulation is done to installation region,
And incorporation engineering algorithm optimization its installation site.Main function is to add effective camber at airfoil trailing edge.
Preferably, gurney flap uses L-type shape, but not limited to this shape.Wherein horizontal sides be used for blade shell into
Row bonding.The height of gurney flap is optimized, using 10mm-100mm scopes.
Preferably, gurney flap uses laciniation, for reducing resistance coefficient, improves lift resistance ratio.Serration depth is
The 10% to 90% of flap height.
Preferably, the utility model increases work(mode at the same time using both the above or three kinds of increasing work(annexes, because various pneumatic attached
The installation of part can be produced and influenced each other, and combination needs to carry out combined optimization.Its concrete mode is：The first operation according to blade
A kind of installation site for increasing work(annex of situation optimization, increases work(further according to the blades flows state optimization containing the increasing work(annex is another
The installation site of annex.Co-design is carried out by the way of two two or three kinds of cooperation analysis designs.
Preferably, increase work(annex spoiler, vortex generator, gurney flap and use high molecular material or composite material system
It is standby, there is certain light aging resisting, moisture-proof thermal environment, the performance such as corrosion-resistant.And avoid using the conductive energy such as metal
Material.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of joint of wind power generating set increases work(structure, it is characterised in that：The structure is to be adopted at the same time on wind electricity blade
With two kinds, or the optimum organization of three kinds of following increasing work(annexes carries out wind power generating set increasing work(, three kinds of increasings work(annex
Respectively spoiler, vortex generator, gurney flap, the spoiler are installed on the maximum chord length of blade pressure surface to blade root
In the range of, the vortex generator is installed on blade suction surface in the range of the chord length of leading edge 5%-50%, the lattice Buddhist nun flap
The wing is installed on the trailing edge of blade pressure surface.
2. a kind of joint of wind power generating set according to claim 1 increases work(structure, it is characterised in that：The vortex hair
The thickness of raw device uses 0.5-3mm, and the scope of 10mm-150mm is highly used according to blade locality aerofoil profile, and vortex generator is worked as
Ground range of angles of attack is between 8 ° to 24 °.
3. a kind of joint of wind power generating set according to claim 1 increases work(structure, it is characterised in that：The lattice Buddhist nun flap
The wing uses L-type shape, wherein, horizontal sides are used to be bonded with blade shell, and the height of gurney flap uses 10mm-100mm
Scope.
4. a kind of joint of wind power generating set according to claim 1 increases work(structure, it is characterised in that：Using two kinds of increasings
Work(annex, described two increasing work(annexes are spoiler and vortex generator, alternatively, being vortex generator and gurney flap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720788625.8U CN207297229U (en) | 2017-06-30 | 2017-06-30 | A kind of joint of wind power generating set increases work(structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084092A (en) * | 2017-06-30 | 2017-08-22 | 中科国风科技有限公司 | A kind of joint of wind power generating set increases work(structure and method |
| WO2020064925A1 (en) * | 2018-09-28 | 2020-04-02 | Wobben Properties Gmbh | Method for operating a wind power installation, wind power installation and wind farm |
| WO2020234182A1 (en) * | 2019-05-17 | 2020-11-26 | Wobben Properties Gmbh | Method for designing and operating a wind power plant, wind power plant, and wind farm |
-
2017
- 2017-06-30 CN CN201720788625.8U patent/CN207297229U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084092A (en) * | 2017-06-30 | 2017-08-22 | 中科国风科技有限公司 | A kind of joint of wind power generating set increases work(structure and method |
| WO2020064925A1 (en) * | 2018-09-28 | 2020-04-02 | Wobben Properties Gmbh | Method for operating a wind power installation, wind power installation and wind farm |
| CN112789406A (en) * | 2018-09-28 | 2021-05-11 | 乌本产权有限公司 | Method for operating a wind power plant, wind power plant and wind park |
| EP4112923A1 (en) * | 2018-09-28 | 2023-01-04 | Wobben Properties GmbH | Method for operating a wind turbine, wind turbine, and wind farm |
| US11946451B2 (en) | 2018-09-28 | 2024-04-02 | Wobben Properties Gmbh | Method for operating a wind power installation, wind power installation and wind farm |
| WO2020234182A1 (en) * | 2019-05-17 | 2020-11-26 | Wobben Properties Gmbh | Method for designing and operating a wind power plant, wind power plant, and wind farm |
| CN113906211A (en) * | 2019-05-17 | 2022-01-07 | 乌本产权有限公司 | Method for designing and operating a wind energy plant, wind energy plant and wind farm |
| JP2022533604A (en) * | 2019-05-17 | 2022-07-25 | ヴォッベン プロパティーズ ゲーエムベーハー | Design and operation of wind farms, wind farms and wind farms |
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