CN108953064B - A kind of wind generator system - Google Patents
A kind of wind generator system Download PDFInfo
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- CN108953064B CN108953064B CN201810784298.8A CN201810784298A CN108953064B CN 108953064 B CN108953064 B CN 108953064B CN 201810784298 A CN201810784298 A CN 201810784298A CN 108953064 B CN108953064 B CN 108953064B
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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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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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
- F03D15/00—Transmission of mechanical power
- F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/02—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having a plurality of rotors
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
-
- 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
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- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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Abstract
The invention discloses a kind of wind generator systems, belong to wind power generation field.The present invention includes rack, generator unit and blade, and the side of rack is provided with generator unit, and passes through Helical gear Transmission between rack and generator unit；Transmission case is provided with above rack, two sides are provided with blade above transmission case, and by Bevel Gear Transmission between blade and transmission case, the blade of every side includes that two panels is centrosymmetric the S-shaped blade of distribution.The present invention overcomes in the prior art that wind-power electricity generation wind energy utilization is lower, the higher deficiency of production cost, provides a kind of wind generator system, and cost is relatively low, with strong applicability, and structure is simple, manufacture processing and easy to maintenance, and application range is wide.
Description
Technical field
The present invention relates to technical field of wind power generation, more specifically to a kind of wind generator system.
Background technique
With the protrusion of energy shortage and environmental problem, so that the energy-saving and emission-reduction benefit of wind-powered electricity generation is concerned.According to measuring and calculating, often
Kilowatt hour wind-power electricity generation can save about 340g standard coal, while reduce 0.983kgCO2、0.698gSO2, 0.65gNOx and
The discharge of 0.355g solid particulate matter.As most competitive in clean energy resource, the most potential energy, wind-power electricity generation with
Installed capacity it is continuous increase will more show its contribution in energy-saving and emission-reduction.
Wind energy is a kind of inexhaustible, nexhaustible new energy, is had a good application prospect and potentiality to be exploited.Wind
Power machine is the power switching device for converting wind energy into mechanical energy, it exports effective torque by the interaction with air-flow
And rotation, driving work mechanism operating.Existing wind-driven generator mainly uses trunnion axis high speed wind wheel, and major defect is to need
There is higher threshold wind velocity, and need the direction of the variation adjustment wind wheel according to wind direction, the size of blade mainly will basis
The height of pylon determines, greatly reduces application range, and since blade will be mounted on the top of pylon, to installation and maintenance band
It is inconvenient to come.To improve the utilization rate of wind energy and reducing cost, wind power plant still has biggish optimization space.
Through retrieving, such as Chinese Patent Application No.: CN92236222X, denomination of invention: sail type wind power device passes through
The blade rotating angle on the perpendicular wing is adjusted with the wind and controls the air-flow on-off of the perpendicular wing to absorb the wind-force of any direction, reduces starting wind
Speed, but lack the mechanism of control wind energy conversion system revolving speed；Such as Chinese Patent Application No.: CN2004100675751, denomination of invention: lift,
Resistance combined vertical axis wind mill, the liter for enabling blade using air-flow using the distribution that deflector and guiding device change air-flow
Power and resistance acting have achieved the purpose that reduce wind energy conversion system threshold wind velocity and have improved working efficiency.However, its guiding device structure
Huge, at high cost, and box haul is needed to change, that there are movement inertias is big, control is high-power asks.
For another example Chinese Patent Application No.: 2008100248586, the applying date: on May 16th, 2008, invention and created name are as follows:
Double-vane upright shaft wind motor, this application discloses a kind of double-vane upright shaft wind motors, and the wind energy conversion system is by blade, I-shaped branch
Frame, transmission case, gearbox and blade azimuth adjustment mechanism composition, cabinet is affixed with hollow shaft and passes through bend pipe and I-shaped bracket
One symmetrical rotary rack of affixed formation；The identical blade of two structures is symmetrically arranged on the two sides of vertical shaft, and phase difference is 90 °, returns
Turn gantry rotation one week and blade only rotates half cycle and blade is made to generate " windward move " heterogeneous, under the action of orienting wind-force
Blade alternate pushes rotary rack rotation, by gearbox output torque and revolving speed, realizes wind energy conversion.This application wind energy benefit
With rate is higher, threshold wind velocity is smaller, output power and revolving speed are adjustable, but complicated integral structure, and production cost is higher, and it is secondary to rub
Quantity is various, and wind energy utilization still has optimization space.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome in the prior art, wind-power electricity generation wind energy utilization is lower, production cost is higher not
Foot, provides a kind of wind generator system, and cost is relatively low, with strong applicability, and structure is simple, manufacture processing and easy to maintenance,
Application range is wide；Because threshold wind velocity of the present invention requirement is low, getting rid of can only be in the big northeast of atmospheric density, North China, northwest etc.
The limitation that ground uses；Again because structure is simple, adaptation optimization can be carried out according to different use occasions, can applied and wind-powered electricity generation
Power plant, countryside street lamp and household etc.；Because its detachable maintaining is convenient, after-sale service people is substantially increased compared with conventional wind machine
The maintenance efficiency of member, further reduces the cost.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of wind generator system of the invention, including rack, generator unit and blade, the side of rack are provided with hair
Electric motor units, and pass through Helical gear Transmission between rack and generator unit；Transmission case, transmission case top are provided with above rack
Two sides are provided with blade, and by Bevel Gear Transmission between blade and transmission case, the blade of every side includes two panels in center
Symmetrical S-shaped blade.
Further, blade includes the first vertical shaft and the second vertical shaft for being set to transmission case two sides, and the two of the first vertical shaft
Side is respectively equipped with the first blade and the second blade, and the first blade and the second blade are centrosymmetric distribution around the first vertical shaft；The
The two sides of two vertical shafts are respectively equipped with third blade and quaterfoil, and third blade and quaterfoil are in center pair around the second vertical shaft
Claim distribution；First blade, the second blade, third blade and quaterfoil section be S-shaped.
Further, it is in vertical distribution between the blade of two sides above transmission case.
Further, transmission case two sides are symmetrically arranged with connection frame, and connection frame end is provided with hollow installation spherical shell,
Connection frame is internally provided with drive rod, and the first vertical shaft and the second vertical shaft, which respectively correspond, to be protruded into installation spherical shell and engage with drive rod
Transmission, the first vertical shaft and the second vertical shaft are cooperated with installation spherical shell by rolling bearing respectively.
Further, installation spherical shell opens up jagged far from the end of connection frame, which extends to installation spherical shell
Hollow space.
Further, the first vertical shaft and the second vertical shaft lower part are equipped with bevel gear, and the end of drive rod is correspondingly provided with phase
The bevel gear of cooperation, the first vertical shaft and the second vertical shaft pass through bevel gear engaged transmission with drive rod respectively.
Further, the speed ratio of bevel gear is 1 on the first vertical shaft and bevel gear on the second vertical shaft and drive rod:
(1-2.5)。
Further, the speed ratio of bevel gear is 1:1 on the first vertical shaft and bevel gear on the second vertical shaft and drive rod.
Further, the steering engine for controlling blade initial position is additionally provided in rack.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) a kind of wind generator system of the invention, including rack, generator unit and blade, the blade of every side are equal
It is centrosymmetric the S-shaped blade of distribution including two panels, twayblade design transmitting more large torque improves wind energy utilization, and blade
Mass Distribution is symmetrical with rotation axis, and mass center is located on rotation axis, and blade rotation can return to original state, because can satisfy
The requirement of the identical and radial self-balancing of blade running track；S-shaped blade makes blade on the basis of not changing original front face area
Vertical shaft two sides windward side coefficient of air resistance has certain difference, has certain pressure poor, and then reduces blade rotation resistance, mentions
High wind energy utilization.
(2) a kind of wind generator system of the invention, connection frame end is provided with hollow installation spherical shell, and installs spherical shell
Far from connection frame end open up it is jagged, the notch extend to installation spherical shell hollow space so that installation spherical shell end
Opening is formed, hollow structure realizes integrally-built light-weight design, and the peace installation and dismantling of transmission gear are convenient in the setting of notch
It unloads.
(3) a kind of wind generator system of the invention, the first vertical shaft and the second vertical shaft pass through rolling with installation spherical shell respectively
Bearing fit is reduced because of influence of the air drag to vertical shaft reliability in the presence of processing and installation error.
(4) a kind of wind generator system of the invention, double sigmoid blade rotates stability with higher, in certain wind
Under fast and certain load, blade is rotated with certain angular speed, increases revolving speed if there is certain interference, and zone of positive pressure reduces
And negative pressuren zone increases, the driving moment of wind pressure declines immediately, generates the negative acceleration for main shaft, it is suppressed that blade accelerated
Trend；Revolving speed is set to become smaller, whereas if there is certain interference, negative pressuren zone reduces and zone of positive pressure increases, the driving moment of wind pressure
Increase immediately, generates the positive acceleration for main shaft, it is suppressed that the trend that blade slows down, therefore have the self-stabilization of rotation special
Property, it can be destroyed to avoid caused by wind energy conversion system overspeed rotation.
(5) a kind of wind generator system of the invention, wind generator system threshold wind velocity is small, can normally open under gentle breeze
Dynamic running, and the steering engine for adjusting blade angle is additionally provided on the bottom of rack, steering engine can control blade initial position,
Moment keeps the blade of side vertical with wind direction while being parallel to fuselage, so that sensitivity is higher, starts convenient for wind energy conversion system,
Improve wind energy utilization.
(6) a kind of wind generator system of the invention, the rotational angular velocity of blade is directly proportional to wind speed, energy fast and stable,
Stability is preferable；And adopt and be bolted connection between blade and vertical shaft, it is easy to disassemble, so that when wind speed is too strong, it can be quickly
Dismantle protection system.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of wind generator system of the invention；
Fig. 2 is a kind of structural schematic diagram of wind generator system of the invention；
Fig. 3 is a kind of left view structural representation of wind generator system of the invention；
Fig. 4 is a kind of schematic view of the front view of wind generator system of the invention；
Fig. 5 is a kind of overlooking structure diagram of wind generator system of the invention；
Fig. 6 is the Computing Principle schematic diagram of middle period each spot speed of on piece of the invention；
Blade surface pressure distribution schematic diagram when Fig. 7 is wind speed 5m/s in the present invention；
Blade surface pressure distribution schematic diagram when Fig. 8 is wind speed 10m/s in the present invention；
Blade surface pressure distribution schematic diagram when Fig. 9 is wind speed 15m/s in the present invention；
Blade surface pressure distribution schematic diagram when Figure 10 is wind speed 20m/s in the present invention；
Figure 11 is the electricity-generating method schematic diagram of wind generator system in the present invention.
Label declaration in schematic diagram:
100, rack；200, transmission case；210, connection frame；220, spherical shell is installed；230, notch；240, drive rod；
310, the first vertical shaft；320, the first blade；330, the second blade；340, the first accessory lobes；350, the second accessory lobes；360,
First cuts leaf；370, second leaf is cut；
410, the second vertical shaft；420, third blade；430, quaterfoil；440, third accessory lobes；450, the 4th accessory lobes；460,
Third cuts leaf；470, the 4th leaf is cut；500, through-hole.
Specific embodiment
To further appreciate that the contents of the present invention, in conjunction with attached drawing, the present invention is described in detail.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
The present invention will be further described with reference to the examples below.
Embodiment 1
As shown in Figure 1-Figure 11, a kind of wind generator system of the present embodiment, including rack 100, generator unit and leaf
Piece, the side of rack 100 is provided with generator unit, and passes through Helical gear Transmission between rack 100 and generator unit；Rack
100 tops are provided with transmission case 200, and 200 top two sides of transmission case are provided with blade, pass through between blade and transmission case 200
Bevel Gear Transmission, the blade of every side include that two panels is centrosymmetric the S-shaped blade of distribution, and bigger torsion is transmitted in twayblade design
Square improves wind energy utilization.Specifically, blade construction forms wind energy conversion system in the present embodiment, and the wind energy conversion system is former using half-rotating mechanism
Reason design, i.e., blade is with rotation half-turn while transmission device (transmission case 200) public affairs turn around itself.Blade strut rail is in air-flow
Access on, air-flow in front of the blade after biggish pressure difference form resistance, push blade rotation, the corresponding warp of blade rotation of two sides
Two pairs of Bevel Gear Transmissions are crossed to transmission case 200, then transmission case 200 passes through gear drive to rack 100, then through a pair of of helical gear
It imparts power to generator unit (i.e. generator), generator unit rotation is driven, so that wind energy is converted into electric energy.Pass
It is provided with transmission mate gear in dynamic case 200, rack 100 and generator unit, it is dynamic by cooperating transmission to realize between gear
Power transmission.Blade in the present embodiment, transmission case 200, rack 100 and generator unit internal gear transmission installation settings can
Using conventional installation techniques in industry, this will not be detailed here.
Blade includes the first vertical shaft 310 and the second vertical shaft 410 for being set to 200 two sides of transmission case in the present embodiment, such as Fig. 1
Shown, the two sides of the first vertical shaft 310 are respectively equipped with the first blade 320 and the second blade 330, and the first blade 320 and the second leaf
Piece 330 is centrosymmetric distribution around the first vertical shaft 310；The two sides of second vertical shaft 410 are respectively equipped with third blade 420 and the 4th leaf
Piece 430, and third blade 420 and quaterfoil 430 are centrosymmetric distribution around the second vertical shaft 410；First blade 320, second
The section of blade 330, third blade 420 and quaterfoil 430 is S-shaped, and forms centrosymmetric structure rotating around vertical shaft,
Mass Distribution is symmetrical with rotation axis, and mass center is located on rotation axis, and blade rotation can return to original state, it is thus possible to meet
The requirement of the identical and radial self-balancing of blade running track.S-shaped blade makes blade on the basis of not changing original front face area
Vertical shaft two sides windward side coefficient of air resistance has certain difference, has certain pressure poor, and then reduces blade rotation resistance, mentions
High wind energy utilization.
As shown in Figure 1, be in vertical distribution between the blade of 200 top two sides of transmission case in the present embodiment under original state,
The wind-force of all directions can be efficiently used, improve wind energy utilization；And 200 two sides of transmission case are symmetrically set in the present embodiment
It is equipped with connection frame 210, as shown in figure 3,210 end of connection frame is provided with hollow installation spherical shell 220, and it is remote to install spherical shell 220
End from connection frame 210 opens up jagged 230, which extends to the hollow space of installation spherical shell 220, so that pacifying
It fills 220 end of spherical shell and forms opening, 210 inner hollow of connection frame and be internally provided with drive rod 240, the first vertical shaft 310 and the
Two vertical shafts 410 respectively correspond protrude into installation spherical shell 220 and with the engaged transmission of drive rod 240, the first vertical shaft 310 and the second vertical shaft
410 respectively with installation spherical shell 220 by rolling bearing cooperate, reduction because in the presence of processing and installation error air drag to vertical shaft
The influence of reliability.Hollow structure in the present embodiment realizes integrally-built light-weight design, and the setting of notch 230 is convenient for
The installation and removal of transmission gear.Specifically, the first vertical shaft 310 and 410 lower part of the second vertical shaft are equipped with bevel gear, drive rod
240 end is correspondingly provided with the bevel gear matched, and the first vertical shaft 310 and the second vertical shaft 410 pass through cone with drive rod 240 respectively
Gear engaged transmission；That is the first blade 320 is arranged in 310 top of the first vertical shaft and the second blade 330,310 lower part of the first vertical shaft are worn
The lower arcuate wall of installation spherical shell 220 is crossed, and the lower arcuate wall cooperation respectively by rolling bearing and installation spherical shell 220 is solid
Fixed, the first vertical shaft 310, which is located on the part of installation 220 hollow region of spherical shell, is provided with bevel gear, corresponding drive rod
The bevel gear of cooperation is provided on 240, the structure of the second vertical shaft 410 is same as above, and on the first vertical shaft 310 and the second vertical shaft 410
The speed ratio of bevel gear is 1:1 on bevel gear and drive rod 240.Corresponding transmission is provided in transmission case 200 and rack 100
Gear, the rotation of the rotation synchronous drive drive rod 240 of vertical shaft, the inner section that then drive rod 240 is located at transmission case 200 are also set
There is gear, which is meshed transmission with the gear in rack 100, the rotation of drive rod 240 successively can be passed to transmission
Case 200 and rack 100, and be ultimately transferred to generator unit and generate electricity.
Blade in the present embodiment forms shaft resistance type windmill, rotates under the pressure effect of wind, wind pressure depend on wind with
The relative velocity of blade.The speed for being illustrated in figure 6 any point on blade is calculated in the component of blade normal direction, and AB is one in Fig. 6
A blade, O are main shafts, and OC is half pivoted arm, and OC=R establishes S axis on blade AB, and direction BA, origin is C point, by partly making a connection
The characteristics of structure, knows that the intersection point H point for the circle that the straight line where blade and radius are OC is a fixed point.When pivoted arm OC is from horizontal position
It sets and turns over counterclockwiseWhen angle, blade AB is turned over from upright position is equidirectionalAngle, wind direction and the positive angle of conventional shaft Y-axis are
θ.If the angular speed of blade is ω, known by the characteristics of half-rotating mechanism, angular velocity vector Ω=2 ω of pivoted arm OC.Blade is plane motion,
Its instantaneous center of velocity is the other end P point of diameter where CO, and blade moving distance is s, and the speed V of any point D is in blade on blade
The component V of normal directionnAre as follows:
Therefore
Double sigmoid blade rotates stability with higher, under certain wind speed and certain load, leaf in the present embodiment
Piece is rotated with certain angular speed, increases revolving speed if there is certain interference, S0(S0It is exactly zone of positive pressure and negative pressuren zone on blade
Separation coordinate, S0Size decide the stress condition of blade, also determine the working condition of wind energy conversion system) can subtract therewith
Small, zone of positive pressure reduces and negative pressuren zone increases, and the driving moment of wind pressure declines immediately, generates the negative acceleration for main shaft, suppression
The trend of blade acceleration is made；Revolving speed is set to become smaller, whereas if there is certain interference, S0Can increase with it, negative pressuren zone reduce and
Zone of positive pressure increases, and the driving moment of wind pressure increases immediately, generates the positive acceleration for main shaft, it is suppressed that blade slowed down becomes
Gesture, therefore, the wind energy conversion system in the present embodiment have the self-stable characteristic of rotation, can break to avoid caused by wind energy conversion system overspeed rotation
It is bad.
Stabilized (steady-state) speed is also kept when unloaded in the present embodiment, the S in stable rotation0< 0 is not in, once there is S0
< 0 the case where (i.e. wind energy conversion system revolving speed is larger,U refers to generator voltage), wind energy conversion system meeting automatic retarding, until
Until, S at this time0=0.On the other hand, if there is S0> 0 the case where (i.e. wind energy conversion system revolving speed is smaller,When), wind energy conversion system
It can automatically speed up, untilUntil, also there is S at this time0=0.In S0When=0, the zero load without any damping loss is ideal
Wind energy conversion system can remain a constant speed rotation, therefore under certain wind speed, stabilized (steady-state) speed when ideal wind energy conversion system zero load
To sum up, under certain wind speed, maximum (top) speed, will occur in when wind energy conversion system zero loadAnd this revolving speed is stable.
Output revolving speed in the present embodiment through the analytical calculation wind energy conversion system in 50-80rpm (wind speed is 2 meter per seconds) can be protected
The output rated power for demonstrate,proving generator unit is 0.5KW/h, and the selection (by taking 0.5KW and 100w as an example) of generator unit is optional
Rare earth permanent magnet 500W generator or 100W micro permanent magnet electricity generator are selected, there is ultralow staring torque, compact-sized, small in size, again
Amount is light, the features such as running smoothly, is high-efficient, is easy to install, just safeguarding.
Wind energy conversion system in the present embodiment when twayblade is placed in the flow field that wind speed is Vw, and wind energy conversion system transforms wind energy into machinery
Can, according to following wind energy utilization calculation formula and parameter, the wind energy utilization η practical proof that can calculate the wind energy conversion system exists
Between 30%-80%, being obviously improved 6 percent points than traditional, wherein M moree1For blade output torque, Vw refers to wind speed, ρ
Refer to atmospheric density, Sw refers to blade in the projected area for dividing vertical velocity direction.
Wind energy conversion system frictional resistance moment is smaller in the present embodiment, and threshold wind velocity is small, and vane stress is more uniform, structure it is simple and
Long service life, and generator unit may be mounted at pylon low side side it is convenient to install and maintain, it is at low cost high-efficient, and this
The steering engine for adjusting blade angle is additionally provided in embodiment on the bottom of rack 100, steering engine can adjust blade and locate always
In direction windward, start convenient for wind energy conversion system, improves wind energy utilization；Wind energy conversion system in the present embodiment may be also used in street lamp, family
It is widely used with, power plant etc..
The wind generator system threshold wind velocity of the present embodiment is small, under gentle breeze (wind scale 1, wind speed 1-1.5m/s)
Normal starting running, and the setting of steering engine, can control blade initial position, and the moment keeps the blade of side being parallel to fuselage
While it is vertical with wind direction so that sensitivity is higher；The rotational angular velocity of blade is directly proportional to wind speed, and energy fast and stable is stablized
Property is preferable；It adopts and is bolted connection between blade and vertical shaft, it is easy to disassemble, so that when wind speed is too strong, it can fast quick-detach guarantor
Protecting system；Wind energy conversion system uses the rotation of the Wei Sifu effect realization blade of half-rotating mechanism, blade crosspiece on the access of air-flow, gas
Rear biggish pressure difference forms resistance to stream in front of the blade, pushes blade rotation.
Surface pressure distribution of the blade under different wind speed and boundary condition calculates respectively such as Fig. 7-Figure 10 in the present embodiment
It is shown, it can be analyzed according to the calculated result under different wind speed and boundary condition, blade is calculated according to pressure-plotting
Spin velocity, the revolving speed of transmission case 200 is obtained, so that the input speed of generator unit is calculated, according to input speed
Select the model of generator.
A kind of wind power generation method of the present embodiment, as shown in figure 11, using wind generator system as described above, according to
Following steps generate electricity:
Step 1: pneumatic equipment bladess crosspiece is on current path, air-flow in front of the blade after pressure difference form resistance, push
Blade rotation；
Step 2: blade rotation is by gear drive to transmission case 200, transmission case 200 is by gear drive to rack
100；
Step 3: rack 100, by gear drive to generator unit, generator unit generates electricity, transforms wind energy into
For electric energy.
Embodiment 2
A kind of wind generator system of the present embodiment, basic structure is with embodiment 1, further, the present embodiment middle period
Piece further includes back blades, specifically, 310 two sides of the first vertical shaft is provided with the first accessory lobes 340 and the second accessory lobes 350, first is secondary
Leaf 340 and the second accessory lobes 350 are that arc shaped blade and the two in 310 two sides of the first vertical shaft form centrosymmetric S-shaped structure, and
Arc-shaped recess section of the arc-shaped recess direction of one accessory lobes 340 with the first blade 320 close to the first vertical shaft 310 is oppositely arranged, and second
Arc-shaped recess section of the arc-shaped recess direction of accessory lobes 350 with the second blade 330 close to the first vertical shaft 310 is oppositely arranged, i.e., such as Fig. 2
Shown in middle orientation, the S-shaped blade of the first blade 320 protrudes to the right close to the segmental arc of the first vertical shaft 310, the second blade
330 S-shaped blade protrudes to the left close to the segmental arc of the first vertical shaft 310, and correspondingly, the first accessory lobes 340 are to the left
The segmental arc of protrusion, the second accessory lobes 350 are the segmental arcs protruded to the right；And first accessory lobes 340 gradually to close to the first blade 320
Direction extend outwardly, the length that extends outwardly (the linear width distance i.e. between both ends) of the first accessory lobes 340 is the first blade 320
The 1/5-1/3 for the length that extends outwardly, the second accessory lobes 350 gradually extend outwardly to the direction close to the second blade 330, the second accessory lobes
350 length that extends outwardly is that the second blade 330 extends outwardly the 1/5-1/3 of length, the first accessory lobes 340 and the second accessory lobes 350
Curvature be not more than the first blade 320 and the second blade 330 segmental arc curvature.
Similarly, the two sides of the second vertical shaft 410 are provided with third accessory lobes 440 and the 4th accessory lobes 450,440 He of third accessory lobes
4th accessory lobes 450 are that arc shaped blade and the two in 410 two sides of the second vertical shaft form centrosymmetric S-shaped structure, third accessory lobes
Arc-shaped recess section of the 440 arc-shaped recess direction with third blade 420 close to the second vertical shaft 410 is oppositely arranged, the 4th accessory lobes 450
Arc-shaped recess section of the arc-shaped recess direction with quaterfoil 430 close to the second vertical shaft 410 be oppositely arranged, third accessory lobes 440 by
Gradually extend outwardly to the direction close to third blade 420, the 4th accessory lobes 450 are gradually outside to the direction close to quaterfoil 430
Extend, the length that extends outwardly of third accessory lobes 440 is that third blade 420 extends outwardly the 1/5-1/3 of length, the 4th accessory lobes 450
The length that extends outwardly be that quaterfoil 430 extends outwardly the 1/5-1/3 of length, the song of third accessory lobes 440 and the 4th accessory lobes 450
Rate is not more than the segmental arc curvature of third blade 420 and quaterfoil 430.The present embodiment is facilitated by setting accessory lobes structure
Wind energy utilization is further increased, accessory lobes and the formation of close blade arc section gradually taper up region, helps to store air-flow shape
At vortex, aeolian thrust is improved, keeps blade rotation more longlasting, and accessory lobes setting facilitates multidirectional promotion blade rotation, wind direction turns
Also balance and stability rotation is able to maintain when change, wind energy utilization is higher.
The speed ratio of bevel gear on bevel gear and drive rod 240 in the present embodiment on the first vertical shaft 310 and the second vertical shaft 410
It is 1:2.
Embodiment 3
A kind of wind generator system of the present embodiment, basic structure is with embodiment 2, further, the present embodiment middle period
Piece further includes Qie Ye, and specifically, the first blade 320 is provided with first far from a lateral edge short transverse of the first vertical shaft 310 and cuts leaf
360, the second blade 330 is provided with second far from a lateral edge short transverse of the first vertical shaft 310 and cuts leaf 370, first cut leaf 360 to
Tilt and extend close to the direction of the first accessory lobes 340, and with the opposed, inwardly directed contraction of the first accessory lobes 340, and first cuts leaf 360 along separate
The direction thickness of first blade 320 is gradually reduced, and first to cut the top of leaf 360 downward along the direction far from the first blade 320
Inclination extends, and the first bottom end for cutting leaf 360 tilts extension along the direction far from the first blade 320 upwards；Similarly, second leaf is cut
370 tilt extension to the direction close to the second accessory lobes 350, and cut 370 edge of leaf with the opposed, inwardly directed contraction of the second accessory lobes 350, second
Direction thickness far from the second blade 330 is gradually reduced, and second cuts the top of leaf 370 along the direction far from the second blade 330
Extension is tilted down, the second bottom end for cutting leaf 370 tilts extension along the direction direction far from the second blade 330 upwards.
Similarly, third blade 420 far from a lateral edge short transverse of the second vertical shaft 410 is provided with third in the present embodiment
Leaf 460 is cut, quaterfoil 430 is provided with the 4th far from a lateral edge short transverse of the second vertical shaft 410 and cuts leaf 470, and third cuts leaf
460 tilt to the direction close to third accessory lobes 440 and extend, and with the opposed, inwardly directed contraction of third accessory lobes 440, and third cuts leaf 460
It is gradually reduced along the direction thickness far from third blade 420, and third cuts the top of leaf 460 along the side far from third blade 420
Extend to tilting down, the bottom end that third cuts leaf 460 tilts extension along the direction far from third blade 420 upwards；4th cuts leaf
470 tilt to the direction close to the 4th accessory lobes 450 and extend, and with the opposed, inwardly directed contraction of the 4th accessory lobes 450, and the 4th cuts leaf 470
It is gradually reduced along the direction thickness far from quaterfoil 430, and the 4th cuts the top of leaf 470 along the side far from quaterfoil 430
Extend to tilting down, the 4th bottom end for cutting leaf 470 tilts extension along the direction far from quaterfoil 430 upwards.The present embodiment
By the way that thickness gradually thin Qie Ye is arranged in blade two sides, leading edge slender lobule is formed in blade two sides, easily incision air-flow, make running resistance
It is smaller, kinetic energy conversion is improved, wind energy utilization efficiency is higher, and Qie Ye and corresponding accessory lobes match, and forms phase in blade two sides
To the region of contraction, be conducive to be further formed air-flow vortex, promote blade rotation, improve wind energy utilization.In the present embodiment
First blade 320, the second blade 330, third blade 420 and quaterfoil 430 also respectively along far from vertical shaft direction thickness by
Gradual change is thin, is gradual change type thin wing structure, and when rotation can preferably cut air-flow, reduce resistance, improves wind energy utilization.
The speed ratio of bevel gear on bevel gear and drive rod 240 in the present embodiment on the first vertical shaft 310 and the second vertical shaft 410
It is 1:2.5.
Embodiment 4
A kind of wind generator system of the present embodiment, basic structure is with embodiment 3, further, the present embodiment middle period
On piece also uniform intervals offer through-hole 500, as shown in figure 4, specifically, blade uniform intervals on the segmental arc of vertical shaft are set
It is equipped with through-hole 500, i.e. the first blade 320 and the second blade 330 open up through-hole on the segmental arc close to the first vertical shaft 310
500；Third blade 420 and quaterfoil 430 open up through-hole 500 on the segmental arc close to the second vertical shaft 410.The present embodiment
The aperture size of the middle thickness direction through-hole 500 along blade is gradual change, and specifically, uniform intervals are arranged two kinds on every blade
Reversed gradual change hole, along the aperture of the same thickness direction through-hole 500 of blade is tapered or flaring, i.e. along height side on every blade
To multiple row through-hole 500 is offered, the aperture gradual change direction of the through-hole 500 of adjacent column is opposite, the gradual change type design of through-hole 500
Enable air-flow by when there is width to be accelerated to narrow, increase energy-flux density, realize negative-pressure ejecting, further enhance kinetic energy turn
Change, improves wind energy utilization, and through-hole 500 is provided in the blade arc section of accessory lobes, and it is more preferable to match effect with accessory lobes；
The reversed through-hole 500 of multiple row is designed then to be able to achieve and be utilized to the equilibrium of the wind flow of all directions.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (8)
1. a kind of wind generator system, it is characterised in that: including rack (100), generator unit and blade, rack (100)
Side is provided with generator unit, and passes through Helical gear Transmission between rack (100) and generator unit；Above rack (100)
It is provided with transmission case (200), two sides are provided with blade above transmission case (200), pass through cone between blade and transmission case (200)
Gear drive, the blade of every side include that two panels is centrosymmetric the S-shaped blade of distribution；
Blade includes the first vertical shaft (310) and the second vertical shaft (410) for being set to transmission case (200) two sides, the first vertical shaft (310)
Two sides be respectively equipped with the first blade (320) and the second blade (330), and the first blade (320) and the second blade (330) are around
One vertical shaft (310) is centrosymmetric distribution；The two sides of second vertical shaft (410) are respectively equipped with third blade (420) and quaterfoil
(430), and third blade (420) and quaterfoil (430) are centrosymmetric distribution around the second vertical shaft (410)；First blade
(320), the section of the second blade (330), third blade (420) and quaterfoil (430) is S-shaped；
Blade uniform intervals on the segmental arc of vertical shaft are provided with through-hole (500), the first blade (320) and the second blade
(330) through-hole (500) are opened up on the segmental arc close to the first vertical shaft (310)；Third blade (420) and quaterfoil
(430) through-hole (500) are opened up on the segmental arc close to the second vertical shaft (410)；Along the thickness direction through-hole (500) of blade
Aperture size is gradual change, and two kinds of reversed gradual change holes are arranged in uniform intervals on every blade, along the same thickness direction of blade
The aperture of through-hole (500) is tapered or flaring, offers multiple row through-hole (500) on every blade along short transverse, adjacent column it is logical
The aperture gradual change direction in hole (500) is opposite.
2. a kind of wind generator system according to claim 1, it is characterised in that: the leaf of two sides above transmission case (200)
It is in vertical distribution between piece.
3. a kind of wind generator system according to claim 1, it is characterised in that: transmission case (200) two sides are symmetrical arranged
Have connection frame (210), connection frame (210) end is provided with hollow installation spherical shell (220), and connection frame (210) is internally provided with
Drive rod (240), the first vertical shaft (310) and the second vertical shaft (410) respectively correspond protrude into installation spherical shell (220) in and and drive rod
(240) engaged transmission, the first vertical shaft (310) and the second vertical shaft (410) are matched with installation spherical shell (220) by rolling bearing respectively
It closes.
4. a kind of wind generator system according to claim 3, it is characterised in that: installation spherical shell (220) is far from connection frame
(210) end opens up jagged (230), which extends to the hollow space of installation spherical shell (220).
5. a kind of wind generator system according to claim 3, it is characterised in that: the first vertical shaft (310) and the second vertical shaft
(410) lower part is equipped with bevel gear, and the end of drive rod (240) is correspondingly provided with the bevel gear matched, the first vertical shaft (310) and
Second vertical shaft (410) passes through bevel gear engaged transmission with drive rod (240) respectively.
6. a kind of wind generator system according to claim 5, it is characterised in that: the first vertical shaft (310) and the second vertical shaft
(410) speed ratio of bevel gear is 1:(1-2.5 on the bevel gear and drive rod (240) on).
7. a kind of wind generator system according to claim 6, it is characterised in that: the first vertical shaft (310) and the second vertical shaft
(410) speed ratio of bevel gear is 1:1 on the bevel gear and drive rod (240) on.
8. a kind of wind generator system according to claim 1-7, it is characterised in that: rack is also set on (100)
It is equipped with the steering engine for controlling blade initial position.
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| CN201810784298.8A CN108953064B (en) | 2018-07-17 | 2018-07-17 | A kind of wind generator system |
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| CN201810784298.8A CN108953064B (en) | 2018-07-17 | 2018-07-17 | A kind of wind generator system |
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| CN109882360A (en) * | 2019-04-28 | 2019-06-14 | 易事特智能化系统集成有限公司 | A kind of combined type wind driven generator group |
| CN111441904A (en) * | 2020-05-13 | 2020-07-24 | 吴俊杰 | Double-vertical-shaft wind power generation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59190482A (en) * | 1983-04-13 | 1984-10-29 | Isamu Terado | Device for generating motive power by twin windmill |
| DE4026575A1 (en) * | 1990-08-22 | 1992-02-27 | Abraham Hans Peter | Wind-powered energy plant - has axial wind turbine coupled to generator drive via plate wheel |
| CN201250756Y (en) * | 2008-09-18 | 2009-06-03 | 张延民 | Dual-vertical-shaft mutual-compensation windmill |
| KR101230489B1 (en) * | 2009-07-28 | 2013-02-06 | 주식회사 남테크 | Blade of wind power generator |
| CN103161671A (en) * | 2011-12-12 | 2013-06-19 | 苏郁夫 | Vertical type wind power generation device |
| CN102889180A (en) * | 2012-09-26 | 2013-01-23 | 东华理工大学 | Vertical-axis multi-impeller wind power generator unit |
| CN203348004U (en) * | 2013-07-09 | 2013-12-18 | 东华理工大学 | Vertical-shaft multiple-impeller wind driven generator set |
| CN204226104U (en) * | 2014-08-27 | 2015-03-25 | 华东理工大学 | Small-sized hybrid vertical axis wind energy collecting device |
| CN105804933B (en) * | 2016-05-18 | 2018-07-03 | 桂林电子科技大学 | A kind of double rotating vane upright shaft wind motors |
| CZ307925B6 (en) * | 2017-02-15 | 2019-08-28 | Ladislav Pejša | Non-volumetric fluid machine |
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