CN101915216A - Efficient matrix type wind power generator - Google Patents
Efficient matrix type wind power generator Download PDFInfo
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- CN101915216A CN101915216A CN2010102450870A CN201010245087A CN101915216A CN 101915216 A CN101915216 A CN 101915216A CN 2010102450870 A CN2010102450870 A CN 2010102450870A CN 201010245087 A CN201010245087 A CN 201010245087A CN 101915216 A CN101915216 A CN 101915216A
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Abstract
The traditional high-power wind power generator adopts a three-blade single turbine, is provided with huge blades, generates a great wind load in a strong wind state, is difficult to control and is unstable, especially the wind power generator easily causes off-line condition and failure at sea and can be damaged by typhoon. In the invention, a small-blade turbine is adopted, and the strong wind load can be completely prevented; and in order to improve the wind energy acquisition amount of the wind power generator, the wind power generator is installed in a three-dimensional matrix way by adopting a plurality of small-blade turbines. A plurality of turbine shafts are horizontally distributed on a wind power generator framework; a plurality of small-blade turbines are connected in series with each turbine shaft; the wind energy obtained by the wind power generator is the sum of the wind energy obtained by each small-blade turbine; and the obtained wind energy is three-dimensional, and the efficiency is improved by several times than the traditional wind power generator. The invention is particularly suitable for manufacturing a high-power typhoon resistant type wind power generator at sea, can prevent the damage of typhoon, greatly improve the power generating efficiency and reduce the manufacture and installation cost, has less maintenance cost and makes a great contribution for China to develop wind power at sea.
Description
Affiliated technical field:
The present invention relates to a kind of model wind generating device.Existing high-power wind-driven generator adopts three blade single turbines, and blade is very huge, and the high wind state produces very that strong wind carries, be easy to cause the unstable and damage of wind-powered electricity generation machine, particularly, be easy to suffer the damage of typhoon, and existing wind-powered electricity generation machine blade is long narrow as the sea turn motor, three blade blowing areas are very little, so it is very low that the wind energy of wind-powered electricity generation machine is obtained efficient, involve great expense, maintenance cost is very high, be unfavorable for popularizing of wind-powered electricity generation machine, also seriously hindered the development of wind-powered electricity generation industry.And this wind-powered electricity generation machine adopts numerous little fan blade turbine to form three-dimensional matrix type installation, on the wind-powered electricity generation machine numerous turbine shaft is installed, be in series with numerous little turbine on the turbine shaft again, the wind energy that the wind-powered electricity generation machine obtains is that numerous little turbine obtains the wind energy sum, and the wind energy that it obtained is three-dimensional; And existing wind-powered electricity generation machine can only obtain the wind energy of blade plane, and the blade blowing area is very little, and most of wind energy all can be wasted; Therefore, the efficient that wind-powered electricity generation machine of the present invention obtains wind energy will improve several times than existing wind-powered electricity generation machine, can significantly improve the generating capacity of wind-powered electricity generation machine.Because the small leaf turbine can avoid high wind to carry fully, it is finely dispersed that the wind that numerous little turbine is subjected to carries, and can significantly not improve the wind loading rating of wind-powered electricity generation machine to the wind-powered electricity generation machine destruction that impacts.This novel wind power machine not only is adapted at land and uses, significantly improve the generated energy of wind energy turbine set, be more suitable for developing Anti-Typhoon marine high-power wind-driven generator, thoroughly solve typhoon the destruction that the wind-powered electricity generation machine causes is threatened, for China's exploitation wind energy on the sea provides technical guarantee.This novel wind power mechanism work and installation cost are also lower, and maintenance cost also seldom.Be a kind of new and effective low cost wind power generator machine, have good use promotional value, will make huge contribution for the exploitation of China and world's wind energy resources.
Background technique:
Wind energy is to have the new energy that exploitation is worth most, wind energy be distribute the widest, nearest from us, take the free of contamination clean energy resource of most convenient, make good use of wind-powered electricity generation to reducing carbon emission, it is great to improve Significance for Environment.Wind energy also is the huge new energy of reserves, and wind energy is inexhaustible, and has minimum relatively development cost, so the development of wind-powered electricity generation should be as the emphasis of new energy development.
There is abundant wind energy resources in China, China, begins to take shape through in recent years high speed development in 6 the ten million multikilowatt wind-powered electricity generation bases of building that have in " three Norths " (northwest, northeast, North China) area, but also outstanding the showing of the problem that exists, electric motor power is big, and generated energy is low; The stability that is incorporated into the power networks does not guarantee, causes the difficult problem that is incorporated into the power networks; Cost of investment is big, and the maintenance cost height causes poor-performed.China's wind-powered electricity generation industry needs to help, and needs subsidy, otherwise will be difficult to existence, is badly in need of technological break-through and technical guarantee.
There is very long shore line in China, and the offshore wind farm exploitation is quietly risen.The offshore wind farm technology always is the emphasis of external research and development, because Europe does not have the threat of typhoon, so, existing wind-powered electricity generation machine does not have Anti-Typhoon performance, but the variation of marine air-flow is very strong, destruction to the wind-powered electricity generation machine also can not be underestimated, and Europe has also suffered tremendous loss in the process of exploitation wind energy on the sea.These experience and lessons must cause our attention, and all there is the harassment of typhoon for several times coastal every year in China, and the climatic environment that the wind-powered electricity generation machine is faced is more abominable than Europe.But in the Anti-Typhoon technical important breakthrough that do not have all the time, blade technology and control technique do not have significant improvement yet, just adopt the reinforcement version of land breeze motor, and its Anti-Typhoon performance is troubling.2003 No. 13 typhoons " cuckoo ", 2006 No. 1 typhoon " pearl " and No. 8 typhoons " Sang Mei " have caused gulf, Shanwei Red sea wind energy turbine set respectively, and the blower fan of Nan'ao wind energy turbine set and Heding, Cangnan, Zhejiang mountain breeze electric field is seriously damaged.Though typhoon has caused very big threat to the exploitation of wind energy, but still can not stop that people develop the enthusiasm of offshore wind farm, there are abundant wind energy resources and wide smooth zone in the sea, thereby makes the Oversea wind power generation technology become nearest research and application focus.China's wind energy on the sea resource reserve is much larger than the land wind energy, and the highly available wind energy resources of reserves 10m surpasses 700,000,000 kW, and very near apart from power load center.If can access effective exploitation, will provide powerful guarantee to China's economic development, also make contributions for the target of energy-saving and emission-reduction.Offshore wind farm exploitation at present has two big difficult points, and the one, the stability of wind-powered electricity generation machine and Security do not ensure.The 2nd, it is very big that wind energy turbine set investment is built at the sea, and cost is very high.
Do simple the introduction with regard to present state-of-the-art wind generating technology below, main flow wind-powered electricity generation unit all adopts horizontal shaft type type three blade structures against the wind at present.Driftage technology, change slurry are the core technologies of present high-power generator group apart from the manufacturing technology of technology and big blade.The driftage technology is utilized wind direction testing apparatus, electric control device and mechanical transmission exactly, and control wind-driven generator along continuous straight runs rotates, and makes wind wheel all the time towards the direction of the wind comes from, to obtain maximum wind energy.Becoming slurry utilizes wind-force speed measurement device, electric control device and mechanical transmission control paddle along longitudinal axis rotation blade apart from technology exactly; the power absorption of control wind wheel; keep certain energy output; becoming slurry is that the unit starting performance is good apart from the advantage of regulating; output power is stable; set structure is stressed little, shuts down convenient and safe.Existing blade is to design with reference to the helicopter propeller arrangement, and purpose is in order to realize the function of speed governing and speed stabilizing, and the blade of high-power wind-driven generator is all very huge, and existing 2MW generator set blade reaches 60 meters, and weight reaches tens tons.Blade adopts high strength glass pricker dimension or high-strength carbon fibre to make, and has that liter resistance is high, dynamic characteristic is good, toughness is strong, use reliable, indeformable, in light weight, function admirable.Huge blade will guarantee can not fracture under the high wind speed of 50～60m/s, and too large deformation can not be arranged, so design difficulty and manufacture difficulty are all very big, cost is very high.But huge blade will produce huge wind and carry under the effect of high wind, and the stability and the Security of wind-powered electricity generation machine caused very big threat.
We calculate this problem that illustrates by simple quantification.Under the high wind speed state, along with wind speed increases, the aerodynamic quality of blade can be more and more stronger, not only can not play the effect of stabilized (steady-state) speed, bring threat on the contrary stable the and safety of wind-powered electricity generation machine, we are that example describes with 1.5MW wind-powered electricity generation machine, design wind speed is 13m/s, the energy that produces is 1.5MW, can be exchanged into 152958kgfm/s, and the wind of accounting on blade carries and can reach hundred tons.If the mean wind velocity of 12 grades of typhoons is 34m/s, and the energy of wind and respective relationships are three cubed relations, the wind that produces at typhoon state lower blade carries and will reach more than the kiloton so, and this numerical value is quite surprising.We know that the control system of wind-powered electricity generation machine has offloading functions, but all there is hysteresis quality in any control system, in time complete discharge.It is very serious that high wind carries the destruction that the wind-powered electricity generation machine is caused, and particularly mechanical system often causes the damage of speed change gear, bearing, main shaft, causes very high maintenance cost.It also is the basic reason that causes coastal wind-powered electricity generation machine instability, Security to ensure that high wind carries.For stability and the Security that improves the wind-powered electricity generation machine, now the wind-powered electricity generation machine to variable speed directly the mode of driving develop, saved speed change gear, avoided the damage of speed change gear, but the hysteresis quality that the high wind of blade carries with control system exists still, this mode of curing the symptoms, not the disease has just solved the position that fault takes place, can not solve root problem, blade high wind carries the inrush current that causes still can influence the stability that is incorporated into the power networks, and it also is that the wind-powered electricity generation machine is unaffordable that powerful wind carries, and still can damage.
Below the control system of wind-powered electricity generation machine is analyzed, it is to cause the external cause that the wind-powered electricity generation machine is unstable and destroy that the high wind of blade carries, and then the hysteresis quality of control system is the internal cause of formation problem.The control gear of existing wind-powered electricity generation machine mainly contains yaw device and becomes the slurry moment device and constitutes, we know that natural wind direction and wind speed all are change at random at any time, though our controlling device can be according to wind direction and wind speed adjustment, but on speed, lag behind all the time, can not satisfy the steadily needs of generating of wind-powered electricity generation machine fully.Such as being 90 ° of variations at the occurring in nature wind direction is recurrent, if 1 °/second of the speed of response of yaw device and change slurry moment device, 90 ° of adjustment times that just need 90 seconds, in so long adjustment process, the suffered wind-force angle of wind wheel blade is diverse, and just the suffered wind-force of blade changes, must cause the instability of wind speed round, thereby have influence on the stable of wind-powered electricity generation machine output power, will cause the wind-powered electricity generation machine to separate net when serious, cause the instability of electrical network.The hysteresis quality of this adjusting is under the weather conditions of strong storm, tend to cause serious consequence, be in along the slurry position at the higher wind velocity condition lower blade, if 90 ° of variations take place in wind direction, will make blade be in the state of large size wind-engaging fully, vane stress is increased suddenly, the powerful wind that blade is subjected to carries and will cause huge impact to speed change gear by transmission shaft, huge wind carries also and can impact to yaw device, causes the damage of yaw device, and blade also might be lost bad.
The operating air velocity of import wind-powered electricity generation unit reaches 50～60m/s theoretically, and the wind speed of 12 grades of hurricanes on average is 34m/s, that is to say that the wind-powered electricity generation unit can move in any violent storm, and intensity also has more than needed.But the fact is cruel, 2003 No. 13 typhoons " cuckoo ", and 2006 No. 1 typhoon " pearl " and No. 8 typhoons " Sang Mei " have caused gulf, Shanwei Red sea wind energy turbine set respectively, and the blower fan of Nan'ao wind energy turbine set and Heding, Cangnan, Zhejiang mountain breeze electric field is seriously damaged.On wind-powered electricity generation unit electronic control, when blower fan is in the blast state, can regulates wind wheel blade automatically and unload automatically, make blade parallel with wind direction, blade is subjected to wind action power minimum like this, has also just resisted the destruction of wind.But the wind-powered electricity generation machine is damaged in typhoon, illustrates that the high wind of wind-powered electricity generation machine blade carries the serious consequence that is caused with the control system hysteresis quality.
So we will solve Anti-Typhoon problem, just must solve the hysteresis quality problem that high wind carries problem and control system.And the high wind of existing blade carries and can't change, and huge blade has determined the characteristic that high wind carries, and only depends on improvement can't change high wind and carries characteristic.What we should make now is exactly thoroughly to change blade structure, thoroughly changes the structure of wind-powered electricity generation machine, and the collapsing force that the high wind of blade that only changes carries could guarantee stablizing and safety of wind-powered electricity generation machine, could solve the Anti-Typhoon problem of wind-powered electricity generation machine.The hysteresis quality problem that also has control system, the sensitiveer problem that just can change hysteresis that control system is changed? answer is negated.The people who does wind-powered electricity generation research is very familiar to wind vane, and the variation of occurring in nature wind direction is very fast, and the wind-powered electricity generation machine is very huge, can not finish adjustment process in the short time.Say it on the contrary; be exactly that we have accomplished very sensitive; yaw device and change slurry moment device do not stop to carry out adjustment work in typhoon, overload operation for a long time can cause the heating of control gear; heating will cause the control gear autostop; variable propeller pitch device is being undertaken the offloading functions of blade, if quit work, blade will be subjected to the effect that powerful wind carries; and the wind-powered electricity generation machine caused intense impact, cause the damage of wind-powered electricity generation machine.If do not shut down, control gear will heating burnout, causes the blade Control Failure, loses offloading functions, finally still makes the wind-powered electricity generation machine suffer impact failure.So under the situation that wind speed and direction alters a great deal, any control system all is to the constraint of wind generator and restriction, best bet is to let nature take its course, automatically adjust wind direction by wind-force, such adjustment is just the most accurate, the most steady, and the wind-force that is subjected to also can be minimum.
Also having wind-powered electricity generation machine generating efficiency low also is to need improved place, existing blade designs with reference to the helicopter propeller arrangement, has good aerodynamic quality, be not that wind promotes wind wheel blade, but the draught head generation lift that leave dual sides forms is crossed in wind, and under low wind conditions, the lift that blade produces is very little, there is not lift just as air speed is low, so existing wind-powered electricity generation machine breeze wind poor-performing.We utilize data to further specify the relation of Blade Properties and wind energy utilization, we analyze service data, when wind speed during less than 6m/s, power coefficient is little, a little less than the aerodynamic quality, when wind speed during in the 8m/s left and right sides, it is big that power coefficient becomes, the aerodynamic quality that blade is described plays a role, when wind speed was above greater than 10m/s, power coefficient constantly reduced, and just the variable propeller pitch device of blade begins action, along with increasing of wind speed, feather is in the aerodynamic quality that constantly reduces blade.Just can draw such conclusion according to above analysis: when hanging down wind speed, the aerodynamic quality effect of blade is little, when high wind speed, we are the effect of limit air power performance again, that is to say our well-designed blade, in fact the not too big effect of performance with good aerodynamic quality.
Summary of the invention:
To existing wind-driven generator existing Problems Analysis, we can recognize clearly that it is to cause the main cause of the unstable and serious damage of wind-powered electricity generation machine that the high wind of blade carries hysteresis quality with control system from above, wind-powered electricity generation machine power generation performance is low also is need improved.The present invention passes through to change blade structure, changes wind-powered electricity generation machine structure, the stability of raising wind-powered electricity generation machine, the Anti-Typhoon ability that improves, raising generating efficiency, reduction wind-powered electricity generation machine cost.
The invention belongs to a kind of horizontal shaft type type wind-driven generator with the wind, turbine is positioned at the rear of generator, maximum characteristics are exactly that the wind-powered electricity generation chain-drive section adopts the shaped as frame skeleton, generator is installed in the place ahead of skeleton, the rear of skeleton is horizontally installed with numerous turbine shaft, these turbine shafts are arranged in parallel, turbine shaft is longer, be in series with a plurality of turbines on each turbine shaft, no matter, still see from the side, all be arranged with a plurality of fan blade turbines from the front of wind-powered electricity generation machine, turbine just looks like to have formed a turbine matrix on the wind-powered electricity generation machine, so be called matrix type wind power generator.Can connect a generator on each turbine shaft of this wind-driven generator, also can pass through gear or belt parallel connection by several turbine shafts, connect a generator then, can reduce wind-powered electricity generation machine cost like this.Turbine shaft is fixed on the shaped as frame skeleton, and the shaped as frame skeleton is installed on the cylindrical stent again.The shaped as frame skeleton can rotate on support, support plays the effect of rotating shaft, when the matrix turbine body is subjected to wind-force, under the tension of support, the matrix turbine body is positioned at the rear of support all the time, so just play the effect of adjusting wind direction, the front that can guarantee the blade turbine body obtains maximal wind-energy all the time towards the direction of the wind comes to guarantee the wind-powered electricity generation machine.This matrix type wind power generator has good Anti-Typhoon performance, and overcome existing single turbine wind-powered electricity generation machine wind energy and obtained inefficient shortcoming, there is not expensive large-scale blade, do not have expensive complicated yaw system yet and become slurry square system, can significantly reduce wind-powered electricity generation mechanism and cause this, reduce rate of fault, reduce maintenance cost, significant to popularizing of wind-powered electricity generation machine, this wind-powered electricity generation machine not only is fit to land, be more suitable for using, will make huge contribution for China develops offshore wind farm as marine Anti-Typhoon type wind-powered electricity generation machine.
The first, adopt small-sized blade turbine series connection, improve rated wind velocity, reduce the blade cost
Along with the large-scale wind electricity unit is developed to MW class by multikilowatt, the length of blade is also more and more longer, the strong rigidity of the blade of these overlength super larges can require very high, so cost and with high costs, only the cost of blade just accounts for more than 20% of whole unit cost, and the manufacturing process of blade is very complicated, requires also very high, main equipment and large mold investment are all very big, and the cost of great number is unfavorable for the popularization of wind-powered electricity generation machine very much.Surface analysis as can be known in the past, it is to cause the unstable and strong destructive arch-criminal of wind-powered electricity generation machine that the huge wind that large-scale blade brings carries, had a strong impact on the normal use of wind-powered electricity generation machine, bringing the great number maintenance cost also is that the wind-powered electricity generation industry is unaffordable, particularly coastal wind-powered electricity generation chance is subjected to the serious damage of typhoon, and the loss that causes is huge.In order to guarantee the stable and safety of wind-powered electricity generation machine, must improve from structure.Adopting small-sized blade turbine is the most effectual way that improves Anti-Typhoon performance, and small-sized blade turbine has again and obtains the low shortcoming of wind energy efficiency, and in order to overcome this shortcoming, we can adopt the method that increases blade turbine quantity to improve wind energy and obtain efficient.Adopt several small leaf turbines to connect, each small leaf turbine can obtain wind energy, and it is exactly each turbine for wind energy sum that this turbine group obtains wind energy, can significantly improve the wind energy of blade turbine group like this and obtain efficient.In order more to obtain wind energy, can adopt the horizontal and vertical array of numerous little turbine group, the arrangement of little turbine group can be a rectangle, also can be triangle or polygonal, the blowing area of wind-powered electricity generation machine is each little turbine group wind sweeping area sum, the blowing area of wind-powered electricity generation machine can be significantly improved like this, the wind energy amount of obtaining can be significantly improved.Small-sized blade is easy to manufacture, and is in light weight, and cost is low, and quality guarantees easily, can significantly reduce the blade manufacture cost, and is significant to popularizing of wind-powered electricity generation machine.When running into typhoon, because small leaf turbine blowing area is very little, institute's wind-engaging carries also very little, can guarantee that blade can not damage in typhoon, the wind-powered electricity generation machine has numerous small leaf turbine, and their suffered wind-force is finely dispersed, can be to the wind-powered electricity generation machine destruction that impacts, can significantly improve the Anti-Typhoon ability of wind-powered electricity generation machine, significantly reduce maintenance cost.
The second, improve the blade turbine rotating speed, increase blade turbine quantity, improve wind energy utilization
The rotating speed of generator is generally all higher, and is excessive for avoiding gear-box, just wishes that the fan blade turbine has high as far as possible rotating speed, and width of blade, the number of blade and rotating speed are inversely proportional to.In order to improve the rotating speed of blade turbine, each blade turbine adopts two blade structures, and the small leaf profile guarantees the turbine stress balance, guarantees that turbine has high rotational speed.But width of blade reduces, number of blade minimizing can reduce the wind energy amount of obtaining, so still adopt the method for numerous small leaf turbine series connection to improve the wind energy efficiency of turbine group.Turbine shaft is longer, each turbine shaft is installed the quantity of turbine more than two, should turbine as much as possible be installed according to the intensity of axle, in order to reduce the influence of front turbine airflow disturbance to the back turbine, separate certain distance between each turbine, and the leaf position of adjacent turbine radially staggers, can improve the efficient that each turbine obtains wind energy like this, the quantity of turbine and density can not be too big, generally about 5-10, quantity can cause the back turbine to obtain wind energy very little too much, increases cost on the contrary.The series connection of a plurality of turbines can significantly improve the wind energy amount of obtaining of turbine wind sweeping area, and the low contradiction of the wind energy amount of obtaining is readily solved.So promptly improve secondary speed, improved the amount of obtaining of wind energy again.Can adopt the miniature gear case or save gear-box, this has positive role to improving transmission efficiency, and can reduce cost.The series connection of numerous turbine, higher turbine blade-tip speed ratio, it is highly beneficial that the raising wind energy is obtained efficient, and simplified transmission device, can significantly improve the efficient of obtaining of wind energy.
Three, utilize structural feature, realization wind-powered electricity generation machine is adjusted the windward side voluntarily under the wind-force effect
The hysteresis quality of existing wind-powered electricity generation machine control system also is the basic reason that causes coastal wind-powered electricity generation machine to damage in typhoon.Under the situation that wind speed and direction alters a great deal, any control system all is that best bet is to let nature take its course to the constraint and the restriction of device, adjusts wind direction automatically by wind-force, and such adjustment is just the most accurate, the most appropriate, and the wind-force that is subjected to also can be minimum.
The present invention has saved yaw device fully and has become the slurry moment device, and the adjustment wind direction of wind-powered electricity generation machine is to finish by the wind-force effect, can not have hysteresis quality, also can not have fault, and makes structure obtain simplifying, and cost is reduced.The wind-powered electricity generation machine adopts cylindrical stent, promptly play supporting role, also play the rotating shaft effect, the shaped as frame skeleton that is used for fixing generator and turbine shaft is installed on the support, the center line of shaped as frame skeleton and the center line of cylindrical stent coincide, and can freely rotate, generator is installed in the place ahead of shaped as frame skeleton, turbine shaft and turbine are installed in the rear of shaped as frame skeleton, the quantity of turbine shaft is more, when turbine shaft is installed, presses shaped as frame frame center line symmetry according to quantity and installs, it can be rectangle that the installation of turbine shaft is arranged, and also can be triangle or polygonal.Turbine shaft is longer, and the quantity of each turbine shaft installation turbine is more, and turbine forms a long strip matrix at the rear of cylindrical stent, and the center that turbine institute wind-engaging carries is the center of matrix just.When wind when the front blows, the center line of support overlaps on wind direction with the matrix type turbine wind center of carrying, the pulling force of support has been offset wind and has been carried power, the stressed maintenance balance of matrix type turbine.When change of the wind, wind blows from the side of matrix type turbine, the direction that matrix type turbine institute wind-engaging carries power does not overlap with the support direction of pull, wind carries power and produces deflecting torque, promoting the matrix type turbine body rotates around support shaft, the direction of carrying power up to wind is identical with the direction of support pulling force, again reach stress balance, so just guaranteed that the matrix type turbine body is consistent with wind direction all the time, just guaranteed that also turbine body each turbine is all the time towards the direction of wind, thereby obtain maximal wind-energy, so just realized that blower fan regulates the requirement of windward side automatically.
Description of drawings:
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is four matrix type wind power generator plan views of the present invention.
Fig. 2 is that four matrix type wind power generator A of the present invention are to view.
Fig. 3 is the suffered wind-force schematic representation of wind-powered electricity generation machine matrix type turbine body.
Among the figure 1, generator, 2, the shaped as frame skeleton, 3, the blade turbine axle, 4, blade turbine, 5, connecting rod, 6, support.
Fig. 1 and Fig. 2 can show main structure of the present invention intuitively, (2) mainly work to be connected and fixed generator (1) and turbine shaft (3) for the shaped as frame skeleton among the figure, shaped as frame skeleton (2) is connected on the support (6), shaped as frame frame center line overlaps with the carriage center line, and can freely rotate on support.Turbine shaft (3) is positioned at the rear of generator, by bearing fixing on framework, and link to each other with motor shaft, there are 5 small leaf turbines (4) to be fixed on the turbine shaft among this figure, blade turbine (4) is 2 blade structures, the position of blade is radially staggered 45 ° between each turbine, Fig. 2 is a front view, can reduce the influence between the turbine like this, improve the wind energy of each turbine and obtain efficient, turbine rotates under the blowing of wind, drives turbine shaft and generator and rotates, and it is that each turbine obtains the wind energy sum that each turbine group obtains wind energy.(5) are square frame shape connecting rods among Fig. 1, guarantee that the distance between the turbine shaft is constant, guarantee can not collide between the turbine.Fig. 3 is the suffered wind-force schematic representation of wind-powered electricity generation machine matrix type turbine body, the principle of wind-powered electricity generation machine adjustment wind direction is described, the N point carries the center for the wind of matrix type turbine body among the figure, work as change of the wind, wind blows from the side, the suffered wind-force of matrix type turbine body is F, the axial tension of support is L, it is M with joint efforts, and the M that makes a concerted effort produces moment of torsion, drives 0 rotation around the support axle center of matrix type turbine body, when carriage center 0 and wind carry center N and overlap, wind carries power F and axial tension L cancels out each other, and it is stable that the matrix type turbine body keeps, and has so just realized adjusting the effect of wind direction.
Claims (1)
1. this wind generating unit is made of critical pieces such as generator, support, fan blade turbines, belong to formula wind generating unit with the wind, the fan blade turbine is positioned at the generator rear, unlike the prior art be, existing wind-driven generator adopts three blade single turbines, and this wind generating unit adopts numerous little fan blade turbine to form three-dimensional matrix type installation.Its structural feature is that the wind-powered electricity generation chain-drive section adopts skeletal structure, skeleton links to each other with support, and can rotate around support shaft, generator and fan blade turbine are installed on the skeleton, maximum characteristics are to be horizontally installed with plural fan blade turbine shaft on the skeleton, turbine shaft is arranged in parallel, the arrangement of numerous turbine shaft can be a rectangle, also can be triangle or polygonal, pressing the shaft axis symmetry of support installs, the plural fan blade turbine that has been installed in series on each fan blade turbine shaft, numerous fan blade turbine is arranged at the rear of wind-powered electricity generation machine, no matter from the front of wind-powered electricity generation machine, still see from the side, all be arranged with plural fan blade turbine, matrix type describes that the fan blade turbine is a lot, so be called matrix type wind power generator.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106979128A (en) * | 2016-01-15 | 2017-07-25 | 吴德礼 | A kind of pair of car combined type orients wind power generation plant |
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Application publication date: 20101215 |