CN110159485A - A kind of wind power generating set active power controling adjustment device - Google Patents
A kind of wind power generating set active power controling adjustment device Download PDFInfo
- Publication number
- CN110159485A CN110159485A CN201910576829.9A CN201910576829A CN110159485A CN 110159485 A CN110159485 A CN 110159485A CN 201910576829 A CN201910576829 A CN 201910576829A CN 110159485 A CN110159485 A CN 110159485A
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- push
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- wind
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- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 241000239290 Araneae Species 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 7
- 244000309464 bull Species 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation 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
- 238000010248 power generation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
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- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
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- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
The present invention provides a kind of wind power generating set active power controling adjustment device, including wind-driven generator ontology, hollow main shaft, hollow main shaft front end is fixedly installed with big hub, big hub is circumferentially equipped with multiple blade racks, it is articulated and connected to realize the folding of blade rack between blade rack and big hub, is fixedly installed with blade on blade rack；Push-pull rod passes through hollow main shaft, push-and-pull rod rear end is provided with bearing support assemblies, bearing support assemblies are connected with electric push-pull system, push-pull rod front end is fixedly installed with small hub, small hub is circumferentially with several struts corresponding with blade, strut one end and small hub are articulated and connected, and are articulated and connected between the strut other end and corresponding blade rack.The present apparatus can make blade do umbrella shape folding and unfolding movement, under the operating condition that wind speed is greater than rated wind speed, can reduce blade swept area by shrinking wind turbine impeller, reaching reduces noise, prevent power super generating, realize the critical functions such as protection brake.
Description
Technical field
The invention mainly relates to wind-driven generator correlative technology field, specifically a kind of wind power generating set active power control
Regulating device processed.
Background technique
The mechanical structure of middle-size and small-size wind energy conversion system power control, being summed up by its working principle mainly has three categories: reducing
Swept area of rotor is changed paddle pitch angle, is reached stall using air dynamic behaviour of blades to control output power.
(1) swept area of rotor is reduced, swept area refers to blade wind sweeping area of the wind wheel perpendicular to arrives stream wind speed when.
Under identical wind speed, the ability that reducing swept area of rotor can make wind energy conversion system absorb wind energy is reduced, to reduce revolving speed.Below
Method can be achieved to achieve the purpose that reduce swept area of rotor:
The first is that wind wheel is faced upward, i.e., using the eccentricity of the axis of wind wheel and cabin axis, so that cabin is generated one makes
Its torque rotated around the shaft to upper right side, after wind speed is greater than rated wind speed, wind wheel is formed by axial force to cabin rotating shaft
It refuses to be greater than tail vane torsional spring and the moment of friction with cabin floating bearing, cabin just starts to rotate to side, and wind wheel deviates from incoming flow
Wind speed direction, to achieve the purpose that reduce swept area of rotor.
The second way is to become eccentricity formula, the mechanical mechanism feature of this wind energy conversion system are as follows: its generator and driver
Side-tipping mechanism is equipped between casing, wherein the first eccentric part is fixedly connected with driver casing, the second eccentric part and generator are solid
Fixed connection, is slidably connected between the first eccentric part and the second eccentric part by two cross slide ways that shape matches, driver
The driving motor of casing internal is connect by transmission mechanism with the second eccentric part, for driving the second eccentric part along two guide rail directions
It moves back and forth, when the first eccentric part and the second eccentric part generation eccentric motion, i.e., eccentricity is greater than zero, and air generates wind wheel
Aerodynamic force deflect wind wheel to side around the centre of gyration, reduce front face area, wind energy conversion system revolving speed reduced, to realize wind-force
The purpose of machine power control.
The third mode is folding blade-type, different from the method for deflecting wind wheel and reducing front face area, folding blade-type
Wind energy conversion system is that ultralight deformation wind wheel is done segment processing, and when wind speed is greater than wind energy conversion system rated wind speed, blade can be with the wind curved
Song has the function that protect blower to reduce front face area.
(2) change paddle pitch angle.Feather is exactly to change the propeller pitch angle of blade when blade is rotated around installation axle, from
And change the aerodynamic characteristic of wind energy conversion system, when wind speed variation, pitch-controlled system changes fan blade pitch angle, to control power generation function
Rate needs special active variable-pitch control system to adjust its paddle pitch angle on large scale wind power machine.
(3) air dynamic behaviour of blade is utilized.This method mainly in big wind speed, passes through increase air
In wind wheel tangent to periphery wind direction to the resistance of blade, to offset the increase of blade lift, thus guarantee the stabilization of wind speed round, it is real
Existing mode mainly uses damping sheet and damping vane, increases the resistance of blade and air-flow using damping sheet and again may be used to limit revolving speed
With referred to as stall control.
Above-mentioned power control structure is directed to although the power regulation of wind-driven generator can be carried out to a certain extent
In middle-size and small-size horizontal axis wind-driven generator group, it is effective and fast in real time to be all difficult to the small-sized wind power generator group in high wind speed area pair
Active power control with achieve the purpose that stable output power and protection wind-driven generator.
Summary of the invention
For the deficiency for solving current technology, the present invention combination prior art provides a kind of wind-force hair from practical application
Motor group active power controling adjustment device, the present apparatus can make blade do umbrella shape folding and unfolding movement, be greater than rated wind speed in wind speed
Operating condition under, can by shrink wind turbine impeller reduce blade swept area, reach reduce noise, prevent power super generating, reality
The critical functions such as now protection brake.
Technical scheme is as follows:
A kind of wind power generating set active power controling adjustment device, including
Wind-driven generator ontology, the wind-driven generator ontology have hollow main shaft, the fixed peace in the hollow main shaft front end
Equipped with big hub, the big hub is circumferentially equipped with multiple blade racks, between blade rack and big hub articulated connection to
The folding of blade rack can be achieved, be fixedly installed with blade on blade rack；
Push-pull rod, the push-pull rod passes through the hollow main shaft, is slidably matched between push-pull rod and hollow main shaft, described to push away
The bearing support assemblies that back end of tie rod supports when being provided with for realizing push-pull rod rotation, bearing support assemblies are connected with electronic push away
Drawing mechanism, the push-pull rod front end are fixedly installed with small hub, and the small hub is circumferentially with several supports corresponding with blade
Bar, described strut one end and small hub are articulated and connected, and are articulated and connected between the strut other end and corresponding blade rack, described to push away
When pull rod push pull maneuver, the blade rack band movable vane piece can be made to realize that umbrella shape collapses or is unfolded.
Further, the bearing support assemblies include bearing spider, are equipped in the bearing spider and are used to support push-and-pull
The ball bearing of bar, the bearing spider side connection push-and-pull disk, the push-and-pull disk are connect with electric push-pull system.
Further, the electric push-pull system include servo motor, the worm reduction box being connect with servo motor,
The electric pushrod connecting with reduction gearbox, electric pushrod are connect by bearing connecting flange with push-and-pull disk.
Further, it is connected by key between the big hub and hollow main shaft, is equipped with and screws in the big hub side
The locking nut of big hub axial limiting is used on hollow main shaft.
Further, sliding bearing is equipped between the hollow main shaft and push-pull rod.
Further, it being articulated and connected between the blade rack and big hub, blade rack side is fixed with blade clamping plate,
Blade fixed clamp is between blade rack and blade clamping plate.
Beneficial effects of the present invention:
Disclosed in this invention PCU Power Conditioning Unit structure in, blade can be made to realize umbrella shape folding and unfolding, therefore answered
For in middle-size and small-size horizontal axis wind-driven generator power conditioning technology, the generator power value that can be monitored according to monitoring system to be believed
Number control adjustment vanes retract foot and adjustment amplitude, to change the swept area of impeller, and then control power output；The present invention
Overall structure is simple, processing and fabricating, convenient for disassembly and assembly, can control blade and carry out flexible folding and unfolding, passes through what electric pushrod was realized
It automatically controls, it is adaptable to variability weather, it can reach and implement effective and fast active function to wind power generating set
Rate control.
Detailed description of the invention
Attached drawing 1 is general structure schematic diagram of the present invention；
Attached drawing 2 is the portion I schematic enlarged-scale view in this Fig. 1；
Attached drawing 3 is angle of throat of the present invention blade stowed position figure when being R.
Label shown in attached drawing:
1, servo motor；2, worm reduction box；3, electric pushrod；4, hollow main shaft；5, wind-driven generator ontology；6,
Big hub；7, blade rack；8, blade；9, strut；10, small hub；11, push-pull rod；12, locking nut；13, bearing；14, axis
Hold seat；15, disk is pushed and pulled；16, bearing connecting flange.
Specific embodiment
With reference to the drawings and specific embodiments, the invention will be further described.It should be understood that these embodiments are merely to illustrate
The present invention rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, this field
Technical staff can make various changes or modifications the present invention, and such equivalent forms equally fall within range defined herein.
As shown in Figure 1, the purpose of the present invention is provide a kind of efficient and fast active function for middle-size and small-size wind-driven generator
Rate controling adjustment device, the device can real-time control swept area of rotor to achieve the purpose that stable output power.
Regulating device in the present invention, composition specifically include that wind-driven generator ontology 5, push-pull rod 11, servo push-and-pull machine
Structure.Wherein, the wind-driven generator ontology 5 has hollow main shaft 4, which is fixedly installed with big hub 6, has
Body is that the big hub 6 is connected by key with 4 outer ring of hollow main shaft, and has screwed locking nut 12 for big hub 6 in side
Axial limit.Leafy plate rack 7 is installed big hub 6 is circumferential, between blade rack 7 and big hub 6 articulated connection to
The folding of blade rack 7 can be achieved, be fixedly installed with blade 8 on blade rack 7；Particularly there is strap bolt in 6 side of big hub
The groove in hole, the other side and big hub 6 are articulated and connected, and there is blade clamping plate in 7 side of blade rack, and blade clamping plate has and blade rack
The bolt hole that 7 grooves match, 8 root of blade are drilled with the bolt hole to match with blade clamping plate, and three is with blade rack 7, leaf
Piece 8, blade clamping plate sequence be bolted, the blade 8 after connection can pass through blade rack 7 drive big hub 6 rotate
And then the hollow main shaft 4 by being keyed with big hub 6 is driven to rotate.Pass through hingedly connecting between blade rack 7 and big hub 6
The folding that binding structure can be realized blade 8 is collapsed.
Push-pull rod 11 in the present invention passes through the hollow main shaft 4, is slidably matched between push-pull rod 11 and hollow main shaft 4,
Sliding bearing is set therebetween, to guarantee the support and smoothly sliding of push-pull rod 11.11 rear end of push-pull rod is provided with axis
Hold support component, bearing support assemblies and can pass through the bearing of setting and guarantee push-and-pull for realizing the support of 11 rear end of push-pull rod
The smooth rotation of bar 11, the bearing support assemblies are connected with electric push-pull system, and electric push-pull system can pass through automatically controlled side
Formula controls the push-and-pull campaign that push-pull rod 11 realizes axial direction.11 front end of push-pull rod is fixedly installed with small hub 10, small hub 10
Be circumferentially with several struts 9 corresponding with blade 8,9 one end of strut and small hub 10 are articulated and connected, 9 other end of strut with it is right
It is articulated and connected between the blade rack 7 answered.The articulated connection structure can be realized following function:, being capable of band when blade 8 rotates
Dynamic push-pull rod 11 realizes rotation together；When the forward axial motion under the driving of electronic Tui La mechanism of push-pull rod 11, strut 9 is driven
The folding of blade 8 collapses multiple blades in umbrella shape, to achieve the purpose that change 8 angle of throat of blade, to change scanning for wind wheel
Area controls output power, protects the safe operation of wind power generating set；When 11 backward axial movement of push-pull rod, 9 band of strut
Movable vane piece 8 is unfolded in umbrella shape.Shown in Fig. 3, to be blade, which transform to leaf position when angle of throat is R by initial position, changes.
As shown in Fig. 2, the bearing support assemblies include bearing spider 14 in the present invention, set in the bearing spider 14
There is the ball bearing 13 for being used to support push-pull rod 11, connection push-and-pull disk 15 in 14 side of bearing spider pushes and pulls disk 15 and electric push-and-pull
Mechanism connection, wherein electric push-pull system include servo motor 1, the worm reduction box being connect with servo motor 12, with subtract
The electric pushrod 3 that fast case 2 connects, electric pushrod 3 are connect by bearing connecting flange 16 with push-and-pull disk 15.Servo motor 1 rotates
When, drive 3 stretching motion of electric pushrod to realize push-and-pull function, bearing support assemblies structure by worm reduction box 2
Design, on the one hand can satisfy the support of 11 rear end of push-pull rod, on the other hand will not influence the normal rotation of push-pull rod 11.
Claims (6)
1. a kind of wind power generating set active power controling adjustment device, which is characterized in that including
Wind-driven generator ontology, the wind-driven generator ontology have hollow main shaft, and the hollow main shaft front end is fixedly installed with
Big hub, the big hub are circumferentially equipped with multiple blade racks, and articulated connection is between blade rack and big hub so as to reality
Show the folding of blade rack, is fixedly installed with blade on blade rack；
Push-pull rod, the push-pull rod pass through the hollow main shaft, are slidably matched between push-pull rod and hollow main shaft, the push-pull rod
The bearing support assemblies that rear end supports when being provided with for realizing push-pull rod rotation, bearing support assemblies are connected with electric push-and-pull machine
Structure, the push-pull rod front end are fixedly installed with small hub, and the small hub is circumferentially with several struts corresponding with blade, institute
It states strut one end and small hub is articulated and connected, be articulated and connected between the strut other end and corresponding blade rack, the push-pull rod
When push pull maneuver, the blade rack band movable vane piece can be made to realize that umbrella shape collapses or is unfolded.
2. a kind of wind power generating set active power controling adjustment device as described in claim 1, which is characterized in that the axis
Holding support component includes bearing spider, and the ball bearing for being used to support push-pull rod, the bearing branch are equipped in the bearing spider
Seat side connection push-and-pull disk, the push-and-pull disk are connect with electric push-pull system.
3. a kind of wind power generating set active power controling adjustment device as claimed in claim 2, which is characterized in that the electricity
Dynamic push-pull mechanism includes servo motor, the worm reduction box connecting with servo motor, the electric pushrod connecting with reduction gearbox,
Electric pushrod is connect by bearing connecting flange with push-and-pull disk.
4. a kind of wind power generating set active power controling adjustment device as described in claim 1, which is characterized in that described big
It is connected by key between wheel hub and hollow main shaft, is equipped with and is tightened on hollow main shaft for bull wheel hub axle in the big hub side
To the locking nut of limit.
5. a kind of wind power generating set active power controling adjustment device as described in claim 1, which is characterized in that in described
Sliding bearing is equipped between empty main shaft and push-pull rod.
6. a kind of wind power generating set active power controling adjustment device as described in claim 1, which is characterized in that the leaf
It is articulated and connected between plate rack and big hub, blade rack side is fixed with blade clamping plate, and blade fixed clamp is in blade rack
Between blade clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576829.9A CN110159485A (en) | 2019-06-28 | 2019-06-28 | A kind of wind power generating set active power controling adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576829.9A CN110159485A (en) | 2019-06-28 | 2019-06-28 | A kind of wind power generating set active power controling adjustment device |
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| Publication Number | Publication Date |
|---|---|
| CN110159485A true CN110159485A (en) | 2019-08-23 |
Family
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|---|---|---|---|
| CN201910576829.9A Pending CN110159485A (en) | 2019-06-28 | 2019-06-28 | A kind of wind power generating set active power controling adjustment device |
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| Country | Link |
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| CN (1) | CN110159485A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617180A (en) * | 2019-10-31 | 2019-12-27 | 内蒙古工业大学 | Umbrella-shaped wind turbine engine room base |
| CN110761944A (en) * | 2019-11-11 | 2020-02-07 | 内蒙古工业大学 | Umbrella-type wind turbine power adjusting device capable of actively adjusting contraction angle and attack angle of blade |
| CN112283022A (en) * | 2020-11-18 | 2021-01-29 | 西安热工研究院有限公司 | Impeller with adjustable blade number and working method thereof |
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| JP2012251543A (en) * | 2011-06-02 | 2012-12-20 | Masashi Otake | Wind power generator to control fan rotation using strength of wind force |
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2019
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|---|---|---|---|---|
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| CN112283022A (en) * | 2020-11-18 | 2021-01-29 | 西安热工研究院有限公司 | Impeller with adjustable blade number and working method thereof |
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Application publication date: 20190823 |