CN207864105U - A kind of novel wind power generator blade using open space - Google Patents
A kind of novel wind power generator blade using open space Download PDFInfo
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- CN207864105U CN207864105U CN201721441962.6U CN201721441962U CN207864105U CN 207864105 U CN207864105 U CN 207864105U CN 201721441962 U CN201721441962 U CN 201721441962U CN 207864105 U CN207864105 U CN 207864105U
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- blade
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- wind speed
- becalming
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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 novel wind power generator blade using open space includes blade body, plate of slidably becalming, the sliding rail for connecting sliding blade and fixed blade, power plant, air velocity transducer, power plant controller and the progress wind speed analysis of the penetrating trepanning of rectangle with fillet and the control system for passing to controller.When wind-driven generator works, air velocity transducer measuring wind speed in real time, and wind velocity signal is passed into control system, the sliding for plate of becalming is controlled by controlling power plant, to change the area of the penetrating trepanning of blade body, so that the front face area of blade is met the condition that wind-driven generator is in rated output wind speed power bracket under current wind speed, extends the wind speed scope of application of wind-driven generator.
Description
Technical field
The utility model belongs to technical field of wind power generating equipment, and in particular to one kind is by traditional wind leaf
The penetrating trepanning of area is adjusted on piece setting, to realize the novel wind power generator blade of area change.
Background technology
The principle of wind-driven generator is to drive the blade of wind-driven generator to rotate using wind-force, then will be rotated by booster engine
Speed promoted and promote the electrical power generators, the formula of wind driven generator output power as follows：
In formula,
P：The output power of wind-driven generator；
Cp：Power coefficient；
ρ：Atmospheric density；
A：Blade front face area；
V：Wind speed.
According to the formula of wind driven generator output power, the output power of wind-driven generator and the cube of wind speed are at just
Than illustrating that the variation of wind speed has a great impact for the output power of wind-driven generator, while the output work of wind-driven generator
Rate is directly proportional to the front face area of blade, therefore the size of the front face area of blade can also produce the output power of wind-driven generator
It is raw to influence.According to present wind generating technology, the gentle breeze wind speed of about 3 meter per seconds can start to generate electricity, however wind speed is not
It is artificially controlled, in the case where wind speed is excessive, wind-driven generator is easy to happen output power overload, it is therefore desirable to new skill
Art makes wind-driven generator that can keep a relatively stable output power under different wind speed.
Utility model content
To solve above-mentioned problems of the prior art, the utility model aim is to provide a kind of using open space
Novel wind power generator blade, which can not only meet the performance requirement of conventional wind generator blade, can also make
Wind-driven generator keeps stable output power in the wind speed range of bigger.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of novel wind power generator blade using open space, it is characterised in that：Include that the rectangle with fillet is logical
Becalm plate 2 and the sliding rail 3 of blade body 1, power plant are slided in the blade body 1 of saturating trepanning, slidable plate 2 of becalming, connection
4, air velocity transducer 5, controller 6, progress wind speed analysis and the control system 7 and the penetrating trepanning 8 that pass to controller, it is described
Sliding rail 3 can will becalm plate 2 and blade body 1 connects, and the plate 2 that enables to becalm is moved up by power plant 4 in sliding rail 3
It is dynamic, to carry out blocking for penetrating trepanning 8, and then the front face area of continuous variable can be obtained, plate 2 of becalming can both hide completely
Intact leaf of the formation of penetrating trepanning 8 as common blade is kept off, can also be entirely retracted in hollow blade so that blade
Front face area is minimized.
The blade body 1 is by plaing a penetrating trepanning 8 of rectangle with fillet among common blade, position is in blade
Centre, width are the 1/4 of blade maximum width, and length is the 1/6 of vane overall length degree, and blade body 1 and plate 2 of becalming collectively form
Piece complete area can consecutive variations novel wind power generator blade.
The plate of becalming mutually agrees with the penetrating hole shape of blade body, and plate of becalming can be with blade body in sliding
The guarantee of covering inner surface is bonded as much as possible under conditions of not interfering.
The blade front face area is determined by wind speed, i.e., changes blade front face area by changing the area of penetrating trepanning.
Compared to the prior art, the utility model has the following advantages：
The utility model uses the novel wind power generator blade of open space in the wind-driven generator course of work, wind speed
In intrinsic wind speed range, plate of becalming covers penetrating trepanning completely, and entire blade is an entirety, shape and conventional wind
Generator blade is identical；After wind speed becomes larger and reaches the upper limit of former design wind speed, with further increasing for wind speed, wind
Wind velocity signal is passed to power plant by fast sensor in real time, is moved on the slide rail to control plate of becalming, with wind speed
Increase, plate of becalming constantly is retracted into hollow part in blade body, and the front face area of blade is gradually reduced, when wind speed increases to one
When definite value, plate of becalming is entirely retracted in the hollow part of blade body, and the front face area of blade has reached minimum at this time, supports
The wind-driven generator power overload that the high wind speed that disappeared is brought；If wind speed continues to increase, plate of no matter becalming is located at which position, wind
Power generator cannot keep within the scope of rated output power, and wind-driven generator can only be stopped at this time.But with routine
Blade and other variable area blades are compared, the utility model blade can not only expand wind-driven generator using wind speed
The upper limit can also realize consecutive variations of the front face area with wind speed, solve front face area Discrete Change and wind speed consecutive variations
The problem of being unable to real-time matching keeps output power of wind power generation more stable, keeps the wind-driven generator course of work more flexible, enhancing
The adaptability of wind-driven generator.
When low wind speed is run, plate of becalming covers penetrating trepanning completely, and entire blade is an entirety, shape and conventional wind
Power generator blade is identical, and when wind speed reaches former wind energy conversion system rated wind speed, output power reaches capacity, and is calculated by analyzing,
Plate of becalming is gradually opened according to aperture-wind speed curve, by changing front face area, is realized constant power output, is expanded wind energy conversion system
Operating air velocity range.
Description of the drawings
Fig. 1 a are that the plate of becalming of the novel wind power generator blade of the utility model open space covers penetrating trepanning completely
Front view；
Fig. 1 b are that the plate part of becalming of the novel wind power generator blade of the utility model open space covers penetrating trepanning
Front view；
Fig. 1 c are that the plate of becalming of the novel wind power generator blade of the utility model open space is entirely retracted to blade master
The front view in internal portion；
Fig. 2 is the system schematic that the utility model realizes that front face area persistently changes.
Fig. 3 is the graph of relation of plate aperture and wind speed of becalming.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
A kind of novel wind power generator blade using open space of the utility model includes that the rectangle with fillet is penetrating
The blade body 1 of trepanning, slidable plate 2 of becalming, sliding rail 3, power plant 4, the wind speed for connecting sliding blade and fixed blade
Sensor 5, controller 6 carry out wind speed analysis and pass to control system 7 and the penetrating trepanning 8 of controller.Wind-driven generator work
When making, air velocity transducer measures wind speed in real time, and wind velocity signal is passed to control system, is becalmed by power plant control
The sliding of plate makes the front face area of blade meet wind-driven generator current to change the area of the penetrating trepanning of blade body
It is in the condition of rated output wind speed power bracket under wind speed, significantly extends the scope of application of wind-driven generator wind speed.
As preferred embodiments of the present invention, as shown in Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 2, the blade body by
A penetrating trepanning of rectangle with fillet is opened among common blade, among blade, width is about present position leaf for position
The 1/4 of piece width, length are about the 1/6 of vane overall length degree, and blade body 1 and plate 2 of becalming collectively form one have can be flexible
Novel wind power generator blade between transmission.It becalms plate 2 and the shape of 1 penetrating trepanning of blade body is mutually agreed with, and plate 2 of becalming
It can ensure that the under conditions of of not interfering is bonded as much as possible with 1 covering inner surface of blade body in sliding.Sliding rail 3 can will becalm
Plate 2 and blade body 1 connect, and enable the mobile penetrating trepanning of progress on sliding rail 3 by power plant 4 of plate 2 of becalming
It blocks, it is hereby achieved that the front face area of continuous variable, plate 2 of becalming can both block penetrating trepanning and formed and conventional leaf completely
The same intact leaf of piece can also change with wind speed and carry out partial occlusion, and when wind speed reaches the limit values, shutter can contract completely
Enter in hollow blade body 1 so that the front face area of blade is minimized.
As shown in Fig. 2, measuring wind speed by air velocity transducer 5, penetrating trepanning is blocked completely when wind speed is not up to plate 2 of becalming
When incision wind speed when, wind-driven generator does not work；When plate 2 of becalming blocks penetrating trepanning 8 completely, wind speed is with this condition
When cutting between wind speed and cut-out wind speed, wind-driven generator working condition is identical as common blade working condition；When wind speed is more than
When cut-out wind speed under above-mentioned condition, wind velocity signal is transmitted to by control system 7 by air velocity transducer 5, and calculate under the wind speed
Ensure the front face area corresponding to rated power, result of calculation is passed into controller 6, control power plant 4 carries out plate of becalming
Displacement on sliding rail 3 is adapted to change front face area with wind speed.Wind speed continues growing, and plate 2 of becalming continues to blade master
The inside of body 1 is moved, until plate 2 of becalming is entirely retracted to the inside of blade body 1；If wind speed is further continued for increasing, front face area
It cannot become smaller again, the output power of wind-driven generator can be more than then the maximum power that wind-driven generator can bear, and at this time can only
It shuts down, wind-driven generator cannot work on.
Fig. 3 is in the course of work of wind-driven generator, the example plot that the aperture of plate 2 of becalming changes with wind speed.In wind speed
When relatively low (in intrinsic wind speed range), plate of becalming covers penetrating trepanning completely, and the aperture for plate 2 of becalming at this time is 0, entirely
Blade is an entirety, and shape is identical as conventional wind generator blade；If wind speed is gradually big and reaches the upper of former design wind speed
After limit, as the aperture of further increasing for wind speed, plate 2 of becalming gradually increases, the front face area of blade is gradually reduced, and is counteracted
The wind-driven generator power overload that high wind speed is brought；When wind speed increases to certain value, plate 2 of becalming is entirely retracted to blade body
In 1 hollow part, the aperture for plate of becalming at this time is 1, and the front face area of blade is minimum, if wind speed continues to increase, no matter hides
Which position aerofoil 2 is located at, and wind-driven generator cannot keep within the scope of rated output power, and wind-driven generator can only at this time
It is stopped.
In conclusion being compared to conventional blade of wind-driven generator, the utility model can not only expand wind-power electricity generation
The wind speed scope of application of machine can also realize consecutive variations of the area with wind speed, solve front face area Discrete Change and wind speed
Consecutive variations are unable to the problem of real-time matching, and output power of wind power generation is made to always remain as rated power, wind-driven generator work
Make process more to stablize and flexibly, enhance the adaptability of wind-driven generator, improve generating efficiency.
Claims (4)
1. a kind of novel wind power generator blade using open space, it is characterised in that：Include that the rectangle with fillet is penetrating
The blade body (1) of trepanning, plate (2) of slidably becalming, connection sliding becalm plate (2) and blade body (1) sliding rail (3),
Power plant (4), controller (6), carries out wind speed analysis and passes to the control system (7) of controller at air velocity transducer (5)
With penetrating trepanning (8), the sliding rail (3) can will becalm plate (2) and blade body (1) connects, and making to becalm plate (2) can
It is moved on sliding rail (3) by power plant (4), to carry out blocking for penetrating trepanning (8), and then continuous variable can be obtained
Front face area, plate of becalming (2) had both had to be blocked penetrating trepanning (8) and forms intact leaf as common blade afterwards completely
Function, it may have be entirely retracted in hollow blade so that the function that the front face area of blade is minimized.
2. a kind of novel wind power generator blade using open space according to claim 1, it is characterised in that：It is described
Blade body (1) is rectangle, the penetrating trepanning (8) with fillet by making a call to a shape among common blade, and position is in blade
Centre, width are the 1/4 of blade maximum width, and length is the 1/6 of vane overall length degree, and blade body (1) and plate of becalming (2) are common
Constitute complete area can consecutive variations novel wind power generator blade.
3. a kind of novel wind power generator blade using open space according to claim 1, it is characterised in that：It is described
Plate of becalming mutually agrees with the penetrating hole shape of blade body, and plate of becalming can be protected in sliding with blade body covering inner surface
Card is bonded as much as possible under conditions of not interfering.
4. a kind of novel wind power generator blade using open space according to claim 1, it is characterised in that：Blade
Front face area is determined by wind speed, i.e., changes blade front face area by changing the area of penetrating trepanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441962.6U CN207864105U (en) | 2017-11-02 | 2017-11-02 | A kind of novel wind power generator blade using open space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441962.6U CN207864105U (en) | 2017-11-02 | 2017-11-02 | A kind of novel wind power generator blade using open space |
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| Publication Number | Publication Date |
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| CN207864105U true CN207864105U (en) | 2018-09-14 |
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| CN201721441962.6U Active CN207864105U (en) | 2017-11-02 | 2017-11-02 | A kind of novel wind power generator blade using open space |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751203A (en) * | 2017-11-02 | 2019-05-14 | 西安交通大学 | A kind of area can consecutive variations novel wind power generator blade |
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2017
- 2017-11-02 CN CN201721441962.6U patent/CN207864105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751203A (en) * | 2017-11-02 | 2019-05-14 | 西安交通大学 | A kind of area can consecutive variations novel wind power generator blade |
| CN109751203B (en) * | 2017-11-02 | 2024-03-08 | 西安交通大学 | Novel wind driven generator blade with continuously variable area |
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