CN206571621U - A kind of gravity arrangements for speed regulation of small-sized wind power generator - Google Patents
A kind of gravity arrangements for speed regulation of small-sized wind power generator Download PDFInfo
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- CN206571621U CN206571621U CN201720074058.XU CN201720074058U CN206571621U CN 206571621 U CN206571621 U CN 206571621U CN 201720074058 U CN201720074058 U CN 201720074058U CN 206571621 U CN206571621 U CN 206571621U
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- tail vane
- generator
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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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Abstract
A kind of gravity arrangements for speed regulation of small-sized wind power generator, including blower fan fixed support, eccentric frame, driftage counting gear, generator, tail vane deflection limit frame, tail vane bar and tail vane, eccentric frame is fixedly mounted on blower fan fixed support top, driftage counting gear and generator are fixedly mounted on eccentric frame, tail vane deflection limit frame is fixedly mounted on the afterbody of generator, the front end of tail vane bar, which coordinates, to be arranged on tail vane deflection limit frame, and tail vane is fixedly mounted in the rear end of tail vane bar.Beneficial effect is：Designed by the eccentrically mounted design of generator and the oblique hinge of tail vane limit frame, when effectively realizing wind-force more than generator rated speed wind-force, make generator impeller and wind-force formation certain angle, the purpose of reduction generator speed is reached, avoid because the too high hardware damage caused of generator speed, the service life of wind-driven generator is extended, cost of wind power generation is reduced.
Description
Technical field
The invention belongs to the gravity arrangements for speed regulation system of technical field of wind power generation, more particularly to a kind of small-sized wind power generator
System.
Background technology
Using active feather progress strong wind speed limit more than current large scale wind power machine, and the strong wind speed limit mode of small wind turbine
But variation is constantly tended to.The strong wind speed limit mode of small wind turbine can be divided into air force control, Electromagnetic Control.Air force
Control include wind wheel lateral deviation or face upward, stall control；Electromagnetic Control includes electromagnetic brake (generator three-phase exports short circuit).
Can different, the wind energy conversion system for facing upward hair style in structure using the wind energy conversion system of different air force speed limit modes
For, a pneumatic shovel obliquely is installed, when wind speed is excessive, its aeroperformance makes wind wheel to face upward head and play to subtract on its tail vane
Speed effect, once but wind speed reduce, its tail vane can be because of the rapid return of gravity, and this transient load is all by the branch of wind energy conversion system
Frame undertakes, and motor also can be reduced the service life of its complete machine by certain damage.
Wind energy conversion system stall control mainly by determining that aerofoil profile torsional angle is distributed, makes wind wheel power reach after rated point, to subtract
Few profile lift, raising resistance control the rotating speed of wind wheel to realize, but have the shortcomings that certain：When wind energy conversion system is in off-network state
When, wind wheel will accelerate, and the angle of attack will reduce, and blade will be disengaged from stall zone, cause the increase of wind wheel moment of torsion, and this will aggravate wind wheel hypervelocity
Degree, so generally controlling stall with control of braking with the use of can be only achieved satisfied control effect, this is not suitable for small
Type wind energy conversion system is installed.
Electromagnetic brake be by the electric current of the whole electrical circuit of generating set to realize brake, that is, by output end short circuit,
Short circuit is produced, makes loop immediate current increase, coil current can produce electromagnetic resistance square, and electric current is bigger, and the moment of resistance is bigger, but
Electromagnetic Control is implicitly present in certain defect：Due to needing to add control system, so the cost of wind energy conversion system can increase；In nature
Under the conditions of, because wind speed changes the uncertainty existed very greatly, especially in spring or autumn, wind speed change is too fast, and controller is also
Speed limit instruction is not sent, the high pressure of moment is by circuit board and burn-down of electric motor.That is, the detection control of the speed-limiting proposal
The problem of link processed still has delayed, it is impossible to effectively protect wind-driven power generation control system.
Gravity speed governing type wind energy conversion system is to use a kind of most common small wind turbine wind wheel lateral deviation class speed limit mode at present, dress
The small wind turbine for having lateral deviation speed limiting mechanism is that its course of work has used mechanics principle, with excellent from foreign countries' introduction earliest
Good deflection characteristic.But the lateral-deviation type wind energy conversion system occurred in the market is mostly designed according to universal experience, lack certain reason
By support, some product speed adjusting performances are not good, or even are unable to speed governing.As can be seen here, design and to process a speed adjusting performance steady
Fixed gravity type wind energy conversion system is particularly important.
The content of the invention
The purpose of this utility model is to improve the validity and reliability of the speed adjusting gear of small wind turbine, it is to avoid because
Exceed the damage that the Rated motor upper limit is caused to motor for wind-force, increase the service life of small wind motor.
To achieve these goals, the technical scheme that the utility model is used be by eccentrically mounted wind-driven generator,
The mode of the oblique swing of wind-driven generator tail vane is controlled using oblique hinge simultaneously, wind-driven generator is exceeded generator volume in wind-force
When determining speed conditions, the timing action raised with tail vane is deflected by tail vane, makes generator and wind direction at an angle, so as to limit
Generator rotary speed is made and reduced, it is worked in rotating speed rated limit.
The gravity arrangements for speed regulation of the utility model small-sized wind power generator, including blower fan fixed support, eccentric frame, yawmeter
Number gear, generator, tail vane deflection limit frame, tail vane bar and tail vane, eccentric frame are fixedly mounted on blower fan fixed support top, partially
Boat counting gear and generator are fixedly mounted on eccentric frame, and tail vane deflection limit frame is fixedly mounted on the afterbody of generator, tail
The front end of rudder stock, which coordinates, to be arranged on tail vane deflection limit frame, and tail vane is fixedly mounted in the rear end of tail vane bar.
Described eccentric frame includes axle bed and motor fixing frame, and motor fixing frame, which coordinates, to be arranged on axle bed, and motor is fixed
Frame is provided with the axle center eccentric setting of installing plate, installing plate and axle bed；Eccentric frame is fixedly mounted on by the flange arrangement of axle bed
Blower fan fixed support top；Generator is fixedly mounted on the installing plate of eccentric frame by mounting flange.
Described tail vane deflection limit frame is the fastener as C-shaped channel steel columnar structure, includes end face, restocking face and undercarriage face
Three structural planes, are provided with oblique hinge and limitation bar between restocking face and undercarriage face, oblique hinge tilts installation settings, and limitation bar is consolidated
Determine installation settings；The front end of tail vane bar coordinates the oblique hinge being arranged between the restocking face of tail vane deflection limit frame and undercarriage face
On.
Installation slotted eye is offered on installing plate on the eccentric frame, installation slotted eye is designed in strip.
The installation site of described generator on a mounting board is adjustable.
Described installation slotted eye is with axle bed not on same axial direction.
The restocking face of described tail vane deflection limit frame, which is offered, offers a mounting hole on an axis hole, undercarriage face；
The lower end of oblique hinge, which coordinates, to be arranged on mounting hole, and upper end is arranged in axis hole.
Described axis hole and mounting hole is vertically shifted to install, and the distance of axis hole to end face is more than mounting hole to end face
Distance.
Limitation bar on the tail vane deflection limit frame is fixedly installed on the right side of the forward position of C-shaped channel mouthful position of keeping to the side.
Described tail vane bar is deflected by tail vane and installed on the left of the limitation bar of limit frame.
The beneficial effects of the utility model are：Pass through the eccentrically mounted design and the oblique hinge of tail vane limit frame of generator
Design, when effectively realizing wind-force more than generator rated speed wind-force, makes generator impeller and wind-force formation certain angle,
The purpose of reduction generator speed is reached, it is to avoid because the generator speed too high hardware damage caused, extend wind-force
The service life of generator, reduces cost of wind power generation.
Brief description of the drawings
Accompanying drawing 1 is overall structure diagram of the present utility model；
Accompanying drawing 2 is overall structure schematic elevation view of the present utility model；
Accompanying drawing 3 is overall structure schematic side view of the present utility model；
Accompanying drawing 4 is eccentric frame structural representation of the present utility model；
Accompanying drawing 5 is that tail vane of the present utility model deflects limit frame structural representation；
Accompanying drawing 6 is the torque schematic diagram of oblique hinge and tail vane of the present utility model.
In accompanying drawing：Blower fan fixed support 1, eccentric frame 2, axle bed 21, motor fixing frame 22, installing plate 221, installation slotted eye
222nd, driftage counting gear 3, generator 4, tail vane deflection limit frame 5, end face 51, restocking face 52, undercarriage face 53, axis hole 54, peace
Fill hole 55, oblique hinge 56, limitation bar 57, tail vane bar 6, tail vane 7.
Embodiment
The utility model is described in detail with specific implementation process below in conjunction with the accompanying drawings：
The gravity arrangements for speed regulation of the utility model small-sized wind power generator, including blower fan fixed support 1, eccentric frame 2, driftage
Counting gear 3, generator 4, tail vane deflection limit frame 5, tail vane bar 6 and tail vane 7, eccentric frame 2 are fixedly mounted on blower fan and fix branch
The top of frame 1, driftage counting gear 3 and generator 4 are fixedly mounted on eccentric frame 2, and tail vane deflection limit frame 5 is fixedly mounted on hair
The afterbody of motor 4, the front end of tail vane bar 6, which coordinates, to be arranged on tail vane deflection limit frame 5, and tail is fixedly mounted in the rear end of tail vane bar 6
Rudder 7.
Described eccentric frame 2 includes axle bed 21 and motor fixing frame 22, and motor fixing frame 22, which coordinates, to be arranged on axle bed 21,
Motor fixing frame 22 is provided with installing plate 221, the axle center eccentric setting of installing plate 221 and axle bed 21；Eccentric frame 2 passes through axle bed 21
Flange arrangement be fixedly mounted on the top of blower fan fixed support 1；Generator 4 is fixedly mounted on eccentric frame 2 by mounting flange
On installing plate 221.
Described tail vane deflection limit frame 5 is the fastener as C-shaped channel steel columnar structure, includes end face 51, the and of restocking face 52
53 3, undercarriage face structural plane, is provided with oblique hinge 56 and limitation bar 57 between restocking face 52 and undercarriage face 53, oblique hinge 56 inclines
Oblique installation settings, limitation bar 57, which is fixedly mounted, to be set；The front end of tail vane bar 6, which coordinates, is arranged on the restocking that tail vane deflects limit frame 5
On oblique hinge 56 between face 52 and undercarriage face 53.
Installation slotted eye 222 is offered on installing plate 221 on the eccentric frame 2, installation slotted eye 222 is designed in strip.
Installation site of the described generator 4 on installing plate 221 is adjustable.
Described installation slotted eye 222 is with axle bed 21 not on same axial direction.
The restocking face 52 of described tail vane deflection limit frame 5 is offered offers one on an axis hole 54, undercarriage face 53
Mounting hole 55；The lower end of oblique hinge 56, which coordinates, to be arranged on mounting hole 55, and upper end is arranged in axis hole 54.
Described axis hole 54 and mounting hole 55 is vertically shifted to install, and the distance of axis hole 54 to end face 51, which is more than, to be installed
The distance of end face 51 is arrived in hole 55.
Limitation bar 57 on the tail vane deflection limit frame 5 is fixedly installed on the right side of the forward position of C-shaped channel mouthful position of keeping to the side.
Install in the left side of limitation bar 57 that described tail vane bar 6 deflects limit frame 5 by tail vane.
The speed adjusting mechanism of the gravity arrangements for speed regulation of the utility model small-sized wind power generator：
When wind speed and direction is all in rated range, wind-driven generator 4 is in same axial direction, tail vane 7 all the time with tail vane bar 6
Can be for being navigated to windage yaw, the axial direction and wind direction for making wind-driven generator 4 and tail vane bar 6 are consistent, and make wind-driven generator 4 always
Worked under wind direction in maximum wind velocity.When wind speed exceedes rated wind speed, eccentric throw effect deflects blower fan head phase side, tail
Rudder 7 due to the effect of its aeroperformance will keep all the time with wind direction in the same direction, wind-force has met or exceeded tail vane 7 and tail vane bar 6
Self gravitation, just drags tail vane bar 6 and is upward deflected along oblique hinge 56, at the same eccentric frame 2 eccentric throw effect make generator 4 to
Side is deflected, and the head and wind direction for making generator 4 form inclined angle, so as to reduce speed.Wind-force is bigger, and yawing moment is got over
Greatly, ensure that generator 4 rotates in rated speed all the time, reach the purpose of protection generator, can be with by the setting of eccentric throw
Regulation limits the wind-force amount of deflection of rated speed.When wind speed is reduced in the range of rated wind speed, tail vane 7 is returned to due to its deadweight
Position originally, carries out carrying out normal power generation to wind again.Pacify in the left side of limitation bar 57 that tail vane bar 6 deflects limit frame 5 by tail vane
Dress so that tail vane bar 6, which is deflected to the right, could drive generator 4 with the integral-rotation of eccentric frame 2, and controlled motor is revolved in one direction
Turn.
The eccentric throw of eccentric frame 2 be aerodynamic force according to suffered by tail vane to the power suffered by the torque and wind wheel of oblique hinge to oblique
The torque of hinge is come (the namely arm of force) that determines, and specific formula for calculation is as follows：
In formula：E-eccentric throw (m), Ma-wind wheel deflection torque, the density (kg/m3) of ρ-air, As-wind wheel face
Product, V-wind speed (m/s), l1- wind wheel plane tests coefficient to the distance (m) of pylon axis：
A=0.Even if the derivation of equation of eccentric throw is as follows：
(1) eccentric throw is the calculating of e wind wheel lateral deviation torque：When wind wheel go off course certain angle when, deflection torque not only with
Eccentric throw about and also be related with l1, more the load with wind wheel in prevailing wind direction is related, and seeks deflection torque.
In formula：The density (kg/m3) of ρ-air, ρ=1.09kg/m3, V-wind speed (m/s), As-wind wheel area, l1—
Wind wheel plane is to the distance (m) of pylon axis, e-eccentric throw (m), therefore when wind speed is rated value, such as V=10m/s, l1
=0.84m, tests coefficient：A=0, the deflection torque for calculating wind wheel is：Ma=
3.97N·m。
(2) as shown in Figure 6, β '=5.7 °, β are made "=26 ° and rated wind speed apparatus for lower wind machine just enter deflection, have
Because Φ is 0 degree, it can be brought into known, seek Ms values,
In formula：GfThe total force (N) of-tail vane, Gf=49N, m=5kg, LgDistance of-tail vane the center of gravity to oblique hinge axle center
(m),Lg=0.8m is solved：Ms=3.89Nm because the speed of wind increases suddenly, due to the rise of now wind speed, deflection with
Rise, deflection torque increase, now Ma>Ms, wind wheel stress changes, and seeks Ms.It is just met for requiring.Then in Ma generations, are returned
E values are adjusted in formula, calculating obtains e=0.05m.
Claims (8)
1. a kind of gravity arrangements for speed regulation of small-sized wind power generator, including blower fan fixed support (1), eccentric frame (2), driftage counting
Gear (3), generator (4), tail vane deflection limit frame (5), tail vane bar (6) and tail vane (7), eccentric frame (2) are fixedly mounted on wind
Machine fixed support (1) top, driftage counting gear (3) and generator (4) are fixedly mounted on eccentric frame (2), tail vane deflection limit
Frame (5) processed is fixedly mounted on the afterbody of generator (4), and the front end of tail vane bar (6), which coordinates, is arranged on tail vane deflection limit frame (5)
On, tail vane (7) is fixedly mounted in the rear end of tail vane bar (6), it is characterised in that：Described eccentric frame (2) includes axle bed (21) and electricity
Machine fixed mount (22), motor fixing frame (22), which coordinates, to be arranged on axle bed (21), and motor fixing frame (22) is provided with installing plate
(221), the axle center eccentric setting of installing plate (221) and axle bed (21)；Eccentric frame (2) is fixed by the flange arrangement of axle bed (21)
Installed in blower fan fixed support (1) top；Generator (4) is fixedly mounted on the installing plate of eccentric frame (2) by mounting flange
(221) on；Described tail vane deflection limit frame (5) is the fastener as C-shaped channel steel columnar structure, includes end face (51), restocking face
(52) oblique hinge (56) and limitation bar and (53) three, undercarriage face structural plane, are provided between restocking face (52) and undercarriage face (53)
(57), oblique hinge (56) tilts installation settings, and limitation bar (57), which is fixedly mounted, to be set；The front end of tail vane bar (6), which coordinates, to be arranged on
On oblique hinge (56) between the restocking face (52) and undercarriage face (53) of tail vane deflection limit frame (5).
2. the gravity arrangements for speed regulation of small-sized wind power generator as claimed in claim 1, it is characterised in that：The eccentric frame (2)
On installing plate (221) on offer installation slotted eye (222), installation slotted eye (222) is designed in strip.
3. the gravity arrangements for speed regulation of small-sized wind power generator as claimed in claim 1 or 2, it is characterised in that：Described installation
Slotted eye (222) is with axle bed (21) not on same axial direction.
4. the gravity arrangements for speed regulation of small-sized wind power generator as claimed in claim 1, it is characterised in that：Described generator
(4) installation site on installing plate (221) is adjustable.
5. the gravity arrangements for speed regulation of small-sized wind power generator as claimed in claim 1, it is characterised in that：Described tail vane deflection
The restocking face (52) of limit frame (5), which is offered, offers a mounting hole (55) on an axis hole (54), undercarriage face (53)；Tiltedly cut with scissors
The lower end of axle (56), which coordinates, to be arranged on mounting hole (55), and upper end is arranged in axis hole (54).
6. the gravity arrangements for speed regulation of small-sized wind power generator as claimed in claim 5, it is characterised in that：Described axis hole (54)
Vertically shifted to install with mounting hole (55), the distance of axis hole (54) to end face (51) is more than mounting hole (55) and arrives end face
(51) distance.
7. the gravity arrangements for speed regulation of small-sized wind power generator as claimed in claim 1, it is characterised in that：The tail vane deflection limit
Limitation bar (57) on frame (5) processed is fixedly installed on the right side of the forward position of C-shaped channel mouthful position of keeping to the side.
8. the gravity arrangements for speed regulation of small-sized wind power generator as claimed in claim 1, it is characterised in that：Described tail vane bar
(6) installed on the left of the limitation bar (57) that limit frame (5) is deflected by tail vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720074058.XU CN206571621U (en) | 2017-01-19 | 2017-01-19 | A kind of gravity arrangements for speed regulation of small-sized wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720074058.XU CN206571621U (en) | 2017-01-19 | 2017-01-19 | A kind of gravity arrangements for speed regulation of small-sized wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206571621U true CN206571621U (en) | 2017-10-20 |
Family
ID=60060352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720074058.XU Expired - Fee Related CN206571621U (en) | 2017-01-19 | 2017-01-19 | A kind of gravity arrangements for speed regulation of small-sized wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206571621U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252859A (en) * | 2018-01-12 | 2018-07-06 | 内蒙古工业大学 | Actively adjust eccentricity formula wind energy conversion system PCU Power Conditioning Unit |
| CN110017246A (en) * | 2019-05-01 | 2019-07-16 | 呼和浩特市博洋可再生能源有限责任公司 | A kind of middle-size and small-size wind energy conversion system active yawing mechanism |
-
2017
- 2017-01-19 CN CN201720074058.XU patent/CN206571621U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252859A (en) * | 2018-01-12 | 2018-07-06 | 内蒙古工业大学 | Actively adjust eccentricity formula wind energy conversion system PCU Power Conditioning Unit |
| CN110017246A (en) * | 2019-05-01 | 2019-07-16 | 呼和浩特市博洋可再生能源有限责任公司 | A kind of middle-size and small-size wind energy conversion system active yawing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20190119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |