CN102619690A - Vertical axis wind turbine capable of adjusting attack angle by using wind power - Google Patents
Vertical axis wind turbine capable of adjusting attack angle by using wind power Download PDFInfo
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- CN102619690A CN102619690A CN2012101278458A CN201210127845A CN102619690A CN 102619690 A CN102619690 A CN 102619690A CN 2012101278458 A CN2012101278458 A CN 2012101278458A CN 201210127845 A CN201210127845 A CN 201210127845A CN 102619690 A CN102619690 A CN 102619690A
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Abstract
The invention provides a vertical axis wind turbine capable of adjusting an attack angle by using wind power. The vertical axis wind turbine comprises blades and at least two frames, wherein each frame consists of a rotary main shaft, an upper cross beam, a lower cross beam, an inner side vertical rod and an outer side vertical rod; the upper cross beam and the lower cross beam are fixed on the rotary main shaft; the inner side vertical rod and the outer side vertical rod are fixed between the upper cross beam and the lower cross beam; elastic components are symmetrically arranged between the inner side vertical rod and the outer side vertical rod; the blades are arranged among the elastic components; and a blade oscillating shaft is fixed between the upper cross beam and the lower cross beam, and is arranged between a longitudinal center line of an orthographic projection surface of each blade and a head part of the blade. The vertical axis wind turbine fully uses the power of wind energy, can automatically adjust the blades to have the best angles at different positions in time, and has an outer frame structure with the highest structural strength, solves the practical problem of adjusting the attack angle of each blade in a very short time, and has a good practical use effect.
Description
Technical field
The present invention relates to a kind of vertical shaft (claiming vertical shaft again) formula wind energy conversion system, is that to carry out the horizontal rotation drive manner be the mechanical device of mechanical energy with wind energy transformation to a kind of blade with vertical shaft and vertical in form.
Background technique
Vertical axis windmill when running be because it is that upwind is rotated that half the blade is arranged, promptly exist " negative lift ", the problem of " negative thrust ", so the vertical-shaft wind engine efficiency of stator blade form is very low.
German's beginning of this century " A. Bates " has proposed the Wind Power Utilization theoretical (comprising the derivation mathematical formulae) of system; The theoretical Wind Power Utilization efficient of pointing out horizontal axis propeller type wind energy conversion system only is 0.593 (being the Wind Power Utilization efficiency factor) of total energy in the wind energy; The mechanical energy of adding reality is converted into the various losses of each link in the electric energy; In fact can only reach 70% actual changing effect; So the energy efficiency coefficient that in fact from wind energy, can obtain is merely 0.415; This is the theoretical efficiency of horizontal-shaft wind turbine, and A. Bates theory has been explained the characteristics and the efficient of Wind Power Utilization, and the wind energy conversion system (wind power generating set) of the modern horizontal axis propeller type of having promoted on a large scale is exactly to be based upon on " the A. Bates is theoretical " basis.
And the vertical axis windmill vertical axis windmill of " stator blade mode " especially; It is (against the wind) born that half the wind-exposuring area is arranged in revolution, not only can not produce effective wind energy, also will consume the half at least energy of the wind energy power that with the wind produces; With reference to " the A. Bates is theoretical "; The vertical-shaft wind engine efficiency of stationary blade is extremely low, has only 0.2075 (i.e. 0.415 ÷ 2=0.2075) in theory, therefore; The vertical axis windmill of stator blade form (vertical axis aerogenerator) do not obtain the great development, be exactly because efficient too low due to.
But; Vertical axis windmill is because also utilized resistance (thrust) energy of wind energy; The mode of the application wind energy of Here it is sailing boat; (but discovery also useless so far sums up the theory of lift and resistance vertical-shaft wind), so if the resistance problem that can solve the windward side blade with turn round in the lift and the thrust problem of each position, just can utilize the thrust effect and the lift effect of wind energy fully; Significantly improve the energy that vertical axis windmill obtains from wind, improve Wind Power Utilization efficient.Therefore; The problem of most critical is exactly that blade is in angle problem diverse location and wind direction; Can regulate this angle, just can significantly improve the Wind Power Utilization efficient of vertical axis windmill, the someone proposes also higher than horizontal-shaft wind turbine Wind Power Utilization efficient; Because theoretical calculation support useless can only have been said so empirical value.
Especially vertical axis windmill is on-stream need not aim at wind direction, is " calm to type " wind energy conversion system, even if the quick variation of wind direction also can continue utilize wind energy; This point is superior to conventional horizontal shaft propeller-type wind energy conversion system; Rotating speed is slower when moving simultaneously, and special " peace and quiet " do not have big noise, and that generally need not install again is too high; Therefore receive people's favor, at present both at home and abroad all at energetically research vertical axis windmill (containing wind-driven generator).
For the resistance problem that solves the windward side with utilize the wind energy of blade at diverse location fully, it is movable at first to have adopted, promptly rotary rectilinear blade; Make blade can both produce " positive wind-force " (comprising resistance thrust and lift thrust) at the diverse location of revolution circumference; When the position of " positive windward side ", make resistance reduce to minimum, and do not produce the Driving force except that positive windward side, the blade of other position all produces positive Driving force; So just greatly improve than stator blade mode efficient; Not only utilize the lift effect of wind energy, also utilized the drag effect of wind energy, made total efficiency improve greatly; So adjusting blade timely, the different angles of attack is arranged in different positions is the main direction of movable vane chip vertical-shaft wind technical research.
But because the vertical shaft general type is that under the form of a main vertical shaft, blade promotes cross beam frame and rotates around main vertical shaft; Be circumferential and rotate, blade is in the wind to being different angle of attack positions (angle of blade and wind direction is the angle of attack) with following wind direction, as in the windward side; The head of blade is to the outside of circumferential, and afterbody is in the inside and half circumference in the windward side of circumferential, and the attack angle of blade position of each degree angle of circumference is all inequality; And it is just in time opposite on the leeward the time; Be afterbody to discoidal outside, head is to the state of discoidal inside, just each angle of circumference all is different angle of attack position.
For this reason; Much human has proposed the method for kinds of artificial intervention adjustment attack angle of blade; Propose and designed such as: machinery type, the motor adjustment is mode, the electronic speed-determination computer control mode, the computer mode processing microcomputer, utilize Computer Processing and use the magnetic force control mode; But these modes all have a lot of shortcomings, analyze as follows:
1, manual intervention can not be adjusted attack angle of blade timely to the optimum position:
Annotate: explanation of nouns: manual intervention (artificial intervention, artificial adjustment; Utilize the angle of attack of controllable energy adjustment blade); Refer to utilize multiple power plant through the artificial multiple mode of setting; Contain after various machinery types, electronic mode, the computing of electron detection microcomputer according to the angle of attack mode of calculating good data adjusting vane, make it to be in optimal position, all belong to the manual intervention scope.
The rotating speed of vertical axis windmill is slower; Per minute generally is 60 right sides of turning left, and analyzes according to 60 commentaries on classics/per minutes, and turn around each second; I.e. one 360 ° circumference; Angle of attack revolving blade each degree angle of circumference in 360 ° circumference when turning around all is different, all needs adjustment, because rotate i.e. 360 angles of circumference of a circle second; Should in 1/360 second time, will adjust the blade of this position, that is to say optimum position under the wind speed state that in 0.0027 second, will adjust at that time (1 second ÷ 360=0.0027 second).
And the position of each attack angle of blade all is different under different wind, all need recomputate parameter and adjust, but will (quantitative range of blade has 2,3,4,5,6,8,12,16 with a lot of blades in the so short time ... N blade) adjust to the optimum state; Many covers just need be set according to the quantity of blade regulate actuator; In the extremely short time, each blade all is adjusted to best ideal position, but this is a difficulty very, be exactly because the time too short; Only 0.0027 second; In the so short time, need calculating parameter, draw and carry out data and blade is adjusted, also require to adjust to the most correct position, such requirement condition through actuator; With present technical merit is impossible reach, and is difficult to carry out being actually thus.
If we lower the requirement; In per 10 degree angles of circumference, adjust (like Fig. 1); Even if per 10 degree circumference angular adjustment once (10 times of precise decreasing) also need to accomplish in 0.027 second, if can not in the so short time, adjust, the efficient of vertical axis windmill just can be not high so; Thereby the efficient of whole wind machine is significantly descended, and the angle of attack position of adjustment and the big more efficient of the error of ideal angle of attack position are low more.
Reach in the so short time; At any time wind speed, wind direction according to changing are adjusted to ideal position, are that mechanical type, electrodynamic type, Computer Processing formula or the like all are difficult to accomplish, and are correct even if analyze theoretically; But because it is too short in fact to adjust the time that allows; Known technology does not reach this kind requirement at present, so this type of mode is unpractical, in practical operation, is difficult to carry out.
Explain: (Fig. 1); This is the theoretical position figure of a blade when rotating a week (360 °) in a second; Also be known theoretical position, if can will obtain the highest Wind Power Utilization efficient according to the angle of attack of this standard each blade of adjustment promptly and accurately.
2, manual intervention mode need consume a large amount of energy; When especially wind speed is big; The blast of blade is also very big, and rotor blade is difficulty very, needs to consume the angle of attack that blade could adjusted and keep to a large amount of energy; Even if when wind speed is low, also need consumes energy continuously; Because blade all is the conversion at any time different angle of attack in the circumference range of 360 degree, thus the power consumpiton of adjustment attack angle of blade exist always and can not interrupt, blowing-out only, when shutting down without the energy.
These energy generally all are to utilize electric power; Move also to have through electronic mode and utilize the mechanical energy of wind energy conversion system itself to convert mechanical force adjustment into; Using mechanical energy also is to consume energy that a large amount of wind energy conversion systems produces; Moreover when wind speed was lower than certain value range, the mechanical forces of generation was very little, the angle of attack of unable adjustment blade.
Do accounts in front and back one or gross output significantly descends, and gross output deducts the used up power of adjustment leaf position, and final gained is very few, loses more than gain.
So the energy that the manual intervention mode consumes is too many; If used up amount of energy is during greatly to the numerical value of a lit range; When promptly having surpassed the total energy that this wind energy conversion system produced; Just lost yet and set up the meaning of this wind energy conversion system, so the manual intervention mode is not a kind of mode that can solve practical problem.
3, in addition; Manual intervention mode complex structure, regulating mechanism artis many especially (comprising gear, tooth bar, guide groove, slide block, position-limit mechanism etc.); These devices receive in harsh nature under the environmetal impact of cold and hot cold and heat, dust storm sleet, corrosive wear, also can not normal safe long-time running, need a large amount of maintenance work supports; Because above-mentioned reason, so cost is not low, it is complicated to make, operation difficulty, management are difficult for, maintenance difficult, be difficult to promote.
4, when making miniature, small wind turbine by this way because regulating mechanism is complicated, accurate, installing space is especially little, also is the problem of more difficult solution process aspect.
Mode with manual intervention; No matter be that the mode that mechanical type, electrodynamic type, magnetic type, electronic control type, microcomputer processing controlling type are adjusted the vertical axis windmill angle of attack is incomplete, undesirable, as can't to accomplish vertical axis windmill peak efficiency operation, can not reduce cost with safe long-time running.The structural type of making a general survey of present multiple vertical axis windmill (vertical axis aerogenerator) is one or two supports, is the bosom that " H " type is supported on blade, and this type of strut is stressed greatly, very easily damages.
Summary of the invention
The purpose of this invention is to provide a kind of vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack, to solve the problem that can not adjust the angle of attack, inefficiency automatically that existing vertical axis windmill exists.
For realizing above-mentioned purpose, the present invention adopts following technological scheme:
A kind of vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack; Comprise blade, framework, said framework is at least 2, and said framework is made up of rotary main shaft, upper beam, bottom end rail, inboard vertical rod and outside vertical rod; Said upper beam and bottom end rail are fixed on the rotary main shaft; Said inboard vertical rod and outside vertical rod are fixed between upper beam and the bottom end rail, are arranged with elastic component between said inboard vertical rod and the outside vertical rod, are provided with blade between the said elastic component; Said blade oscillating axle is fixed between upper beam and the bottom end rail, and said blade oscillating axle is located between the vertical center line and leaf head of blade frontal plane of projection.
The ratio of the distance of said blade oscillating axle and blade afterbody and the distance of blade oscillating axle and leaf head is between 5.2:4.8～8.8:1.2 five equilibrium.
The distance of said blade oscillating axle and blade afterbody and blade oscillating axle are 5.5:4.5,6:4 or 6.5:3.5 with the ratio of the distance of leaf head.
Said framework is " mouth " shape.
Organic and inorganic, elastic material forms said elastic component by metal, nonmetal, rubber, plastics, plastic cement, Cowhells, elastic composite etc.
The profile of said elastic component is " I " shape, " * " shape, " C " shape, " D " shape, " B " shape, " O " shape or serpentine, and the centre is square, cross.
Distance is 1 to 5 times of width of blade between said inboard vertical rod and the vertical rod of the said outside.
The present invention has the following advantages:
1, framework of the present invention is for being outer support frame; Inboard vertical rod, outside vertical rod and axis form " river " glyph framework; Blade installation is in the centre of this " river " word framework; The upper beam and the bottom end rail of inboard vertical rod, outside vertical rod and framework form one group of firm frame structure, have reached the strongest project organization, can use minimum material to produce the maximum parts of intensity;
2, elastic component plays the effect of support, buffering and adjustment to blade, when blade from the upwind of windward side be transformed into leeward to the location point of following wind direction the time, blade has a quick rollover states that angle is very big in extremely short time the inside; Impact to swirl gear is big especially, and the vertical axis windmill that some have designed the slat belt blade is exactly because this king-sized impact force does not solve; So operation normally safely; Will be in the extremely short time by impact failure, and this structure among the present invention is to utilize the characteristics of elastic material, makes blade not produce rigid impact strength fast in the upset; The process of whole upset is flexible continuous stress; Promptly realized quick upset, kept the steady running under the state that does not have to impact again, made blade and the unit can long-life safe operation.Whole unit only has blade axis (blade rotation) and is connected overall beam frame on the column that (vane group is around the column rotation; Be called revolution again) be the parts that rotate; There are not any rotatable parts in addition again, different vertical axis windmill and wind-driven generator with other;
3, the middle axle position of blade of the present invention is " biasing "; See that from the direction of blade windward side orthographic projection the blowing area on shaft centre line both sides is different in the blade, and very big difference (utilizing the pressure difference of wind) is arranged; Can produce very big deflecting torque when being moved by wind; Can rotate to the big one side of blowing area automatically, and can be not out of hand under the support of frame type flexible blade support buffer structure, at will disorderly change; Can deflect into best position automatically; The angle of deflection was big when wind-force was big, and the angle of wind-force hour deflection is little, was one and adapted to automatically the attack angle of blade position and attitude of different wind speed and be (can in 0.0027 second rapid adjustment to best angle) of continuous fast automatic adjustment.
The efficient that the invention solves long-term puzzlement vertical axis windmill is not high, complex structure, manufacturing difficulty, operation difficulty, a difficult problem that cost is too high; Wind energy conversion system of the present invention does not need in several ways artificial; Consume additional power is gone to adjusting vane angle of attack position again, makes full use of the strength of wind energy self, in time makes each blade automatically on different positions; Adjust to best angle; And be the external frame structural type of high structural strength, make the Wind Power Utilization efficient of vertical axis windmill reach the highest, it is simple in structure, intensity is big, cost is low, fault is few; Solved blade and adjusted the practical challenges of the angle of attack in the short time, had good practical effect at the utmost point.
Below in conjunction with accompanying drawing the present invention is further specified.
Description of drawings
Fig. 1 is the theoretical position figure of blade when rotating a week (360 °) in a second;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the structural representation of the framework of one embodiment of the present invention;
Fig. 4 is the plan view of Fig. 3;
Fig. 5 is the schematic representation of blade when calm;
Fig. 6 is the schematic representation of blade with the wind the time;
Schematic representation when Fig. 7 is the blade contrary wind;
Fig. 8 is the schematic representation (the medial and lateral vertical rod is not drawn) of blade oscillating axle mounting point;
Fig. 9 is the schematic representation of elastic component profile for " I " shape;
Figure 10 is the schematic representation of elastic component profile for " * " shape;
Figure 11 is the schematic representation of elastic component profile for " C " shape;
Figure 12 is the schematic representation of elastic component profile for " D " shape;
Figure 13 is the schematic representation of elastic component profile for " B " shape;
Figure 14 is the schematic representation of elastic component profile for " O " shape;
Figure 15 is that the elastic component profile is the schematic representation of serpentine.
Embodiment
Embodiment 1
Like Fig. 2,3, shown in 4; A kind of vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack of the present invention comprises blade 8, framework, and framework is 6; Framework is made up of rotary main shaft 2, upper beam 3, bottom end rail 4, inboard vertical rod 5 and outside vertical rod 6; Upper beam 3 is fixed on the rotary main shaft 2 with bottom end rail 4, and inboard vertical rod 5 and outside vertical rod 6 are fixed between upper beam 3 and the bottom end rail 4, are arranged with elastic component 7 between inboard vertical rod 5 and the outside vertical rod 6; Be provided with blade 8 between the elastic component 7, blade oscillating axle 9 is fixed between upper beam 3 and the bottom end rail 4.
As shown in Figure 8, blade oscillating axle 9 is located between the vertical center line and leaf head of blade frontal plane of projection.
See the cross section of blade from blade tip, leaf head is A, and the blade afterbody is C, and blade oscillating axle 9 is B, and the distance of blade oscillating axle 9 and blade afterbody is BC, and blade oscillating axle 9 is AB with the distance of leaf head, and BC:AB is 5.5:4.5.
Organic and inorganic, elastic material forms elastic component 7 by metal, nonmetal, rubber, plastics, plastic cement, Cowhells, elastic composite etc.
Distance is 5 times of width of blade 8 between inboard vertical rod 5 and the said outside vertical rod 6.
As shown in Figure 3, framework 1 is " mouth " shape.As shown in Figure 9, the profile of elastic component 7 is " I " shape, and the centre is square, cross.
The distance of blade oscillating axle 9 and blade afterbody is BC, and blade oscillating axle 9 is AB with the distance of leaf head, and BC:AB is 6:4.
Distance is 3 times of width of blade 8 between inboard vertical rod 5 and the said outside vertical rod 6.
Shown in figure 10, the profile of the elastic component 7 of present embodiment is " * " shape.
Other are with embodiment 1.
The distance of blade oscillating axle 9 and blade afterbody is BC, and blade oscillating axle 9 is AB with the distance of leaf head, and BC:AB is 6.5:3.5.
Shown in figure 11, the profile of the elastic component 7 of present embodiment is " C " shape.
Distance is 1 times of width of blade 8 between inboard vertical rod 5 and the said outside vertical rod 6.
Other are with embodiment 1.
The distance of blade oscillating axle 9 and blade afterbody is BC, and blade oscillating axle 9 is AB with the distance of leaf head, and BC:AB is 5.2:4.8.
Shown in figure 12, the profile of the elastic component 7 of present embodiment is " D " shape.
Other are with embodiment 1.
The distance of blade oscillating axle 9 and blade afterbody is BC, and blade oscillating axle 9 is AB with the distance of leaf head, and BC:AB is 8.8:1.2.
Shown in figure 13, the profile of the elastic component 7 of present embodiment is " B " shape.
Other are with embodiment 1.
Shown in figure 14, the profile of the elastic component 7 of present embodiment is " O " shape.
Other are with embodiment 1.
Embodiment 6
Shown in figure 15, the profile of the elastic component 7 of present embodiment is a serpentine.
Other are with embodiment 1.
It is of the present invention that to utilize the size of " blade deflection moment " that wind-force produces be can carry out wide range according to the wind regime of different regions to regulate; The method of regulating is exactly that different " axle position in the blade biasing " is set, and the position design method and the scope of its axis are following:
See the cross section of blade from blade tip, leaf head is A, and the blade afterbody is C; Blade oscillating axle 9 is B; The distance of blade oscillating axle 9 and blade afterbody is BC, and blade oscillating axle 9 is AB with the distance of leaf head, and BC:AB is between 5.2:4.8～8.8:1.2 five equilibrium.
The optimum position scope is three kinds, i.e. 5.5:4.5; 6:4; 6.5:3.5 6.5:3.5 can be adopted in low wind speed area in the position that can adopt 5.5:4.5 in the high wind speed area, very wide in a word regulation range can adapt to multiple wind speed area needs.
For example: the maximum five equilibrium of axis is: apart from blade tail end 8.8 five equilibriums; Apart from the blade head end is 1.2 five equilibriums, and by that analogy, middle axle position begins from 5.2 branches such as grade apart from the blade tail end; Up to till 8.8 five equilibriums of blade tail end, very wide regulation range can adapt to different regional wind regime characteristics.
Whole unit only has blade oscillating axle (blade rotation) and is connected overall beam frame on the column that (vane group is around the column rotation in the wind energy conversion system of this patent manufacturing; Be called revolution again) be the parts that rotate; There are not any rotatable parts in addition again; The most succinct structural design is greatly the most tangible characteristics of this patent, different vertical axis windmill and wind-driven generator with other.
The cross section shape of the blade of indication comprises plate shaped and " aircraft aerofoil profile " two kinds in this patent; " " two-sided symmetry streamlined " blade of " NAKA-2412 " type in the aircraft aerofoil profile scope; the manufacturing of this kind blade processing has certain degree of difficulty; but efficient is higher, and the lower slightly but easy processing of plate shaped blade efficiency can significantly reduce the manufacture cost of wind energy conversion system; respectively have characteristics all can adopt according to actual needs, can adopt above-mentioned a kind of or two kinds in the practicality according to different environmental conditions.The front projection geometric shape of blade is: square, circular, triangle and polygonal.
Adjustment axis mounting point is fit to the wind regime of different regions, adopts lift and resistance (thrust) complex method, reach blade fast automatic adjustment, promptly realized the simple and practical again safety of the highest Wind Power Utilization efficient, the cost spy is low.
Experiment effect:
1, " 100 watts of (miniature) self-regulated attack angle of blade vertical axis windmills ":
Blade dimensions: high 0.8 meter, wide 0.25 meter
Solid of rotation diameter: 1.6 meters;
Blade quantity: 5;
Vane airfoil profile: NAKA-2412 shape;
Start wind speed: ≧ 3.5m/s;
Work wind speed: 3.5-20m/s;
Rated speed scope: 60-120 commentaries on classics/per minute;
Auxiliary generator: 1 of permanent magnet low-speed alternator, 300 watts of power;
Output power: output is 30 watts during 4.5m/s; Output is 80 watts during the 6m/s wind speed; Output is 100 watts during the 10m/s wind speed; Output is 200 watts during the 15m/s wind speed; Output is 300 watts during the 20m/s wind speed.
Shut down wind speed: shut down by the electromagnetic brake self-actuating brake during greater than 20m/s, other establishes 1 cover manual brake system, can brake at any time;
Anti-strong wind performance: greater than 20m/s the time, when electromagnetic brake system can change greater than 120 according to rotating speed, brake automatically; Brake back wind energy conversion system no longer rotates, and blade also need not specially be protected, and (when comprising typhoon) can be according to weather forecast when above when wind speed reaches 25m/s; Shift to an earlier date 1-2 days whole blades are pulled down, because very near apart from ground, blade distance from bottom ground has only 0.3-0.5 rice high; So the dismounting blade is very convenient, only get final product wind speed and the typhoon of Di Kang ≧ 25m/s with firm framework;
Applicable scope: the illumination in the family, the corridor lamp of stair, street lamp, garden lamp etc.; Only 200 yuan of wind energy conversion systems itself; Supporting storage battery and inverter cost at 1000 yuan with interior (if the common lead acid accumulator adopts lithium-ions battery, price is in 4000 yuan).
2, " 2 kilowatts of (small-sized) self-regulated attack angle of blade vertical axis windmills ":
Blade dimensions: high 1.5 meters, wide 0.45 meter
Solid of rotation diameter: 3 meters;
Blade quantity: 5;
Vane airfoil profile: NAKA-2412 shape;
Start wind speed: ≧ 3.5m/s;
Work wind speed: 3.5-20m/s;
Rated speed scope: 60-100 commentaries on classics/per minute;
Auxiliary generator: 1 of permanent magnet low-speed alternator, 3 kilowatts of power;
Output power: output is 280 watts during 4.5m/s; Output is 420 watts during the 6m/s wind speed; Output is 1 kilowatt during the 10m/s wind speed; Output is 1.8 kilowatts during the 15m/s wind speed; Output 2.6-3 kw of power during the 20m/s wind speed;
Shut down wind speed: shut down by the self-actuating brake of electromagnetism (centrifugal force) brake system during greater than 20m/s, other establishes 1 cover manual brake system, can brake at any time;
Anti-strong wind performance: greater than 20m/s the time, when electromagnetic brake system can change greater than 120 according to rotating speed, brake automatically; Brake back wind energy conversion system no longer rotates, and blade also need not specially be protected, and (when comprising typhoon) can be according to weather forecast when above when wind speed reaches 25m/s; Shift to an earlier date 1-2 days whole blades are pulled down, because very near apart from ground, blade distance from bottom ground has only 0.3-0.5 rice high; So the dismounting blade is very convenient, only can resist wind speed and the typhoon of 25m/s with firm framework;
Applicable scope: highway lamp, expressway street lamp, family's cooking use etc.; Only 1000 yuan of wind energy conversion systems itself; Supporting storage battery and inverter cost 10000 yuan with interior (common lead acid accumulator) if adopt lithium-ions battery, price is in 30000 yuan.
3, " 50 kilowatts of (medium-sized) self-regulated attack angle of blade grid type vertical axis aerogenerator groups ":
Blade dimensions: high 8 meters, wide 3.5 meters;
Solid of rotation diameter: 15 meters;
Blade quantity: 6;
Vane airfoil profile: NAKA-2412 shape;
Start wind speed: ≧ 3m/s;
Work wind speed: 3-20m/s;
Rated speed scope: 30-60 commentaries on classics/per minute;
Auxiliary generator: 10 in alternating current asynchronous generator, 7 kilowatts of every power, 70 kilowatts of gross outputs can reach overload and exerting oneself 150% in 30-60 minute, promptly can allow gross output to reach 105 kilowatts of active power in short-term.
And net mode: this machine adopts " the induction generator automatic self synchronizing is incorporated into the power networks " mode; Be specially: 10 inferior being incorporated into the power networks of induction generator component; Be not to be that disposable whole generator input is incorporated into the power networks; But according to the size of wind speed; The height of wind energy conversion system rotating speed, through " PCL " automatic controller pre-set parameter, according to these 10 generators of rotating speed control of at that time wind speed and wind energy conversion system respectively, gradation input progressively or withdraw from electrical network and reach the wind conditions high efficiency smooth that makes full use of at that time and do not have the working state that impact is incorporated into the power networks;
Output power: 14 kilowatts (2 generators) of output during 4.5m/s; 21 kilowatts (3 generators) of output during the 6m/s wind speed; 42 kilowatts (6 generators) of output during the 10m/s wind speed; 56 kilowatts (8 generators) of output during the 15m/s wind speed; Total active power of output 80-105 kilowatt (10 generators) during the 20m/s wind speed, the above-mentioned active power that is to electrical network output;
Shut down wind speed: shut down by the electromagnetic brake self-actuating brake during greater than 20m/s, other establishes 1 cover manual brake system, can brake at any time;
Anti-strong wind performance: the time greater than 20m/s; " PLC " automatic controller can brake according to wind speed and speed conditions automatically; Brake back wind energy conversion system no longer rotates; This machine blade is the telescopic type blade, can blade height be reduced to 1/4 of length through hydraulic mechanism, and has " self-locking " device Anti-Typhoonly to damage.Can shift to an earlier date several hours operation hydraulic systems and reduce length of blade according to weather forecast, it's the typhoon phase is past margin of safety.
50 kilowatts of scopes of power range; The low wind speed unit that use on the seashore; Cost is low, Anti-Typhoon; Invest ten thousand yuan of 30-100 for every, annual according to 4000 hours minimum 200,000 degree electricity of surfing the Net of actual power amount calculating (the coastal available wind energy time is 5000-6000 hour), every degree is electric can to get 120,000 yuan of 2.5-3 cost-recoverings according to 0.6 yuan of calculating.
4, " 200 kilowatts of (large-scale) self-regulated attack angle of blade grid type vertical axis aerogenerator groups ":
Blade dimensions: high 12 meters, wide 5.5 meters;
Solid of rotation diameter: 30 meters;
Blade quantity: 6;
Vane airfoil profile: NAKA-2412 shape;
Start wind speed: ≧ 3m/s;
Work wind speed: 3-20m/s;
Rated speed scope: 30-60 commentaries on classics/per minute;
Auxiliary generator: 10 in alternating current asynchronous generator, 20 kilowatts of every power, 200 kilowatts of gross outputs can reach overload and exerting oneself 150% in 30-60 minute, promptly can allow gross output to reach 225 kilowatts of active power.
And net mode: this machine adopts " the induction generator automatic self synchronizing is incorporated into the power networks " mode; Be specially: 10 inferior being incorporated into the power networks of induction generator component; Be not to be that disposable whole generator input is incorporated into the power networks, but according to the size of wind speed, the height of wind energy conversion system rotating speed; Through " PCL " automatic controller pre-set parameter, according to these 10 generators of rotating speed control of at that time wind speed and wind energy conversion system respectively, gradation input progressively or withdraw from electrical network and reach the wind conditions that makes full use of at that time and efficiently put down
Steady nothing is impacted the working state that is incorporated into the power networks;
Output power: output is 50 kilowatts during 4.5m/s; Output is 100 kilowatts during the 6m/s wind speed; Output is 150 kilowatts during the 10m/s wind speed; Output is 180 kilowatts during the 15m/s wind speed; Export total active power of 200-225 kilowatt during the 20m/s wind speed, the above-mentioned active power that is to electrical network output;
Shut down wind speed: shut down by the electromagnetic brake self-actuating brake during greater than 20m/s, other establishes 1 cover manual brake system, can brake at any time;
Anti-strong wind performance: the time greater than 20m/s; " PLC " automatic controller can brake according to wind speed and speed conditions automatically; Brake back wind energy conversion system no longer rotates; This machine blade is the telescopic type blade, can blade height be reduced to 1/4 of length through hydraulic mechanism, and has " self-locking " device Anti-Typhoonly to damage.Can shift to an earlier date several hours operation hydraulic systems and reduce length of blade according to weather forecast, it's the typhoon phase is past margin of safety.
Explain: 200 kilowatts of scopes of power range; The low wind speed unit that use on the seashore; Cost is low, Anti-Typhoon, invests 1,500,000 yuan for every, and per hour specified generated energy is 200 kilowatts of active power electric energy; Annual according to 4000 hours minimum 800,000 degree electricity of surfing the Net of actual power amount calculating (the coastal available wind energy time is 5000-6000 hour), every degree electricity can get 480,000 yuan of 3-4 cost-recoverings according to 0.6 yuan of calculating.
5,10 (50) megawatt rail mounted vertical shaft wind power generator apparatus:
Tracks: elliptical perimeter track, long 3000 meters;
Blade dimensions: high 10 meters, wide 3.5 meters;
The generating vehicle: 300, each 5-10 kilowatt (4-5 level wind, wind speed 5-8m/s) that generate electricity; Each generator car are installed 1-3 sheet blade; Use the invention technology contents of this patent, the wind-engaging " angle of attack " of adjusting blade automatically efficiently produces Driving force, makes the generating vehicle along circular (comprising ellipse, irregular cycle) orbital motion; Also we can say, is exactly the vehicle group that a row wind-force promotes.
Vehicle one is walked, and wheel shaft rotates, and draws power from the wheel shaft of this vehicle; Drive is placed in the Ac that the generator on this vehicle sends; Through settling three-phase rectifier rectification onboard is the direct current of 690V (or electric pressure standard of confirming voluntarily), (is the mode of present high speed electric train, " antikinesis " mode of a kind of electric train just through the pantograph mode; Be that the wind car is walked, generating is seen off).Below vehicle, be provided with dc bus output after, through direct current ac converter transformer, be reverse into parallelly connected networking with electrical network behind the threephase AC.
Total output: 5000-6000 hour 3-5 level wind (wind speed 4-8m/s) is arranged on the seashore of China's southeastern coast every year, and the specified generated energy of native system in this wind speed range is the 10-50 megawatt, and 1-5 ten thousand degree electric energy promptly per hour generate electricity; According to per hour 10,000 degree electricity calculating; Annual 5000 hours 5,000 ten thousand degree that can generate electricity, every degree electricity can be taken in 3,000 ten thousand yuan every year according to 0.6 yuan of calculating; Drop into 100,000,000 yuan, be recoverable to investment in 3.5 years.
Claims (7)
1. vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack; Comprise blade; It is characterized in that: also comprise framework; Said framework is at least 2; Said framework is made up of rotary main shaft (2), upper beam (3), bottom end rail (4), inboard vertical rod (5) and outside vertical rod (6), and said upper beam (3) and bottom end rail (4) are fixed on the rotary main shaft (2), and said inboard vertical rod (5) and outside vertical rod (6) are fixed between upper beam (3) and the bottom end rail (4); Be arranged with elastic component (7) between said inboard vertical rod (5) and the outside vertical rod (6); Be provided with blade (8) between the said elastic component (7), said blade oscillating axle (9) is fixed between upper beam (3) and the bottom end rail (4), and said blade oscillating axle (9) is located between the vertical center line and leaf head of blade frontal plane of projection.
2. a kind of vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack as claimed in claim 1, it is characterized in that: the ratio of the distance of the distance of said blade oscillating axle (9) and blade afterbody and blade oscillating axle (9) and leaf head is between 5.2:4.8～8.8:1.2 five equilibrium.
3. a kind of vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack as claimed in claim 2 is characterized in that: the distance of said blade oscillating axle (9) and blade afterbody and blade oscillating axle (9) are 5.5:4.5,6:4 or 6.5:3.5 with the ratio of the distance of leaf head.
4. a kind of vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack as claimed in claim 1 is characterized in that: said framework (1) is " mouth " shape.
5. a kind of vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack as claimed in claim 1 is characterized in that: organic and inorganic, elastic material forms said elastic component (7) by metal, nonmetal, rubber, plastics, plastic cement, Cowhells, elastic composite etc.
6. a kind of vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack as claimed in claim 5; It is characterized in that: the profile of said elastic component (7) is " I " shape, " * " shape, " C " shape, " D " shape, " B " shape, " O " shape or serpentine, and the centre is square, cross.
7. like the arbitrary described a kind of vertical axis windmill that utilizes the wind-force self-energy to regulate the angle of attack of claim 1 to 6, it is characterized in that: distance is 1 to 5 times of width of blade (8) between said inboard vertical rod (5) and the said outside vertical rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101278458A CN102619690A (en) | 2012-04-27 | 2012-04-27 | Vertical axis wind turbine capable of adjusting attack angle by using wind power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101278458A CN102619690A (en) | 2012-04-27 | 2012-04-27 | Vertical axis wind turbine capable of adjusting attack angle by using wind power |
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| Publication Number | Publication Date |
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| CN102619690A true CN102619690A (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101278458A Pending CN102619690A (en) | 2012-04-27 | 2012-04-27 | Vertical axis wind turbine capable of adjusting attack angle by using wind power |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150827A (en) * | 2015-04-28 | 2016-11-23 | 李治中 | Magnetic suspension control becomes oar high efficiency fluid engine |
| CN109931215A (en) * | 2019-04-26 | 2019-06-25 | 东北大学 | A kind of sail cloth formula vertical-axis wind turbine with permanent magnetism limit function |
| CN113137340A (en) * | 2021-05-12 | 2021-07-20 | 郑州亨特利电子科技有限公司 | Squirrel-cage wind-driven generator |
| CN109973295B (en) * | 2019-04-26 | 2023-11-28 | 东北大学 | Flexible swing type air guide sleeve applicable to vertical axis wind turbine |
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| US6688842B2 (en) * | 2002-06-24 | 2004-02-10 | Bruce E. Boatner | Vertical axis wind engine |
| DK200501595A (en) * | 2004-11-15 | 2006-05-16 | Shih Chi-Kuang | Windmill with vertical shaft |
| CN202531354U (en) * | 2012-05-12 | 2012-11-14 | 厦门锐思达机电科技有限公司 | Vertical axis wind power generation device capable of automatically adjusting attack angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688842B2 (en) * | 2002-06-24 | 2004-02-10 | Bruce E. Boatner | Vertical axis wind engine |
| DK200501595A (en) * | 2004-11-15 | 2006-05-16 | Shih Chi-Kuang | Windmill with vertical shaft |
| CN202531354U (en) * | 2012-05-12 | 2012-11-14 | 厦门锐思达机电科技有限公司 | Vertical axis wind power generation device capable of automatically adjusting attack angle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150827A (en) * | 2015-04-28 | 2016-11-23 | 李治中 | Magnetic suspension control becomes oar high efficiency fluid engine |
| CN106150827B (en) * | 2015-04-28 | 2018-07-17 | 李治中 | Magnetic suspension control variable pitch high efficiency fluid engine |
| CN109931215A (en) * | 2019-04-26 | 2019-06-25 | 东北大学 | A kind of sail cloth formula vertical-axis wind turbine with permanent magnetism limit function |
| CN109973295B (en) * | 2019-04-26 | 2023-11-28 | 东北大学 | Flexible swing type air guide sleeve applicable to vertical axis wind turbine |
| CN109931215B (en) * | 2019-04-26 | 2023-11-28 | 东北大学 | Sailwing type vertical axis wind turbine with permanent magnet limiting function |
| CN113137340A (en) * | 2021-05-12 | 2021-07-20 | 郑州亨特利电子科技有限公司 | Squirrel-cage wind-driven generator |
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Application publication date: 20120801 |