CN202391653U - Wind turbine generator system - Google Patents
Wind turbine generator system Download PDFInfo
- Publication number
- CN202391653U CN202391653U CN2011204622710U CN201120462271U CN202391653U CN 202391653 U CN202391653 U CN 202391653U CN 2011204622710 U CN2011204622710 U CN 2011204622710U CN 201120462271 U CN201120462271 U CN 201120462271U CN 202391653 U CN202391653 U CN 202391653U
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- wind
- drag
- line
- pylon
- electricity generation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a wind turbine generator system, which belongs to horizontal axis wind turbines for wind power generation and comprises a tower, stay cables, engine room assembly parts and a wind rotor. The wind turbine generator system is characterized in that the connection points of the stay cables on the top layer and the tower are located on an upper portion of the tower; stay cables on the upper layer on the same side of the wind rotor can work in two states: 1, being located at a position away from a swept range of blades during power generation process; 2, when the wind turbine generator system is shut down due to over-speed of the wind, stay cables on the upper layer are located in the swept range of the blades, passing through the two blades and tensions the tower tightly. By the aid of the stay cables, pressure to the tower can be greatly reduced, so that the wind turbine generator system is light and convenient to transport, cost of the wind turbine generator system can be reduced, and further the cost for per kilowatt can be reduced.
Description
Technical field
The utility model relates to a kind of horizontal axis wind-driven generator group with wind-power electricity generation.Generate electricity by way of merging two or more grid systems unit and the dispersion wind-driven generator that generates electricity and to use on the spot that wind power generating set can be divided into by the way of output that institute's electricity can be connected to the grid; In the ordinary course of things; The former selects large-scale and medium-sized wind power generating set for use, and the latter often selects small-sized wind power generator for use.A kind of wind power generating set of the utility model belongs to large-scale and medium-sized wind power generating set.Can be divided into two kinds of horizontal axis and vertical axis aerogenerator groups again by the structure wind power generating set, the utility model belongs to the horizontal axis wind-driven generator group.Be divided into again by pylon structure two kinds of drag-line and no drag-lines are arranged, the utility model belongs to has the wind-powered electricity generation of drag-line unit.
Background technique
The big-and-middle-sized wind power generating set of horizontal axis comprises the cabin of being made up of transmission device, electricity generating device, yaw system, mainframe and cabin shell; Support the cabin up to tens meters in addition up to a hundred meters pylon; Some pylon is equipped with an end and is connected with pylon; The other end and the drag-line that the drag-line basis is connected by the wind wheel that blade and wheel hub are formed, have variable propeller pitch device also are housed in a kind of wind wheel.
The wind wheel of horizontal shaft wind-power unit is around the axis rotation of level, and the wind wheel plane of rotation roughly inflow direction with wind is vertical.Each blade of wind wheel inswept scope in rotation is enclosed sweeping demeanour.
The pylon of horizontal shaft wind-power unit not only will bear blast, also will bear the whole sound load in the wind-powered electricity generation unit running process simultaneously.The structure of pylon has forms such as steel cylinder, concrete and truss, and the large-scale wind electricity unit adopts the steel cylinder pylon more at present.Along with the increase steel cylinder diameter of wind-powered electricity generation unit capacity can reach several meters even tens meters, transportation is difficulty very, and some can not transport only not in the land.For convenient transportation, some steel cylinder pylon need be assembled segmentation of tower tube even burst manufacturing to the scene again; Solved transportable problem like this; But but reduced the strength and stiffness of steel cylinder, thereby increased weight and cost, field erected in addition workload is big too.In order to reduce the moment of flexure of horizontal axis and mainframe, wind wheel can not lean out the long distance of pylon.For blade does not bump pylon, pylon should be made isodiametric cylindrical up and down as far as possible., be necessary the enlarged lower part diameter really, so the shape of the longitudinal plane of the actual pylon that adopts generally all is two waists near parallel trapezoidal because the moment of flexure that the bottom of pylon receives is maximum.The advantage of the pylon of shape is can use linear leaf and do not bump pylon like this, helps improving generated energy.But its shortcoming is the intensity for the root that increases pylon, needs to increase the diameter of whole pylon, has so also just increased cost.If do not increase tower diameter, have the problem of strut buckling.Blow down for fear of unstability with by strong wind; Can adopt drag-line to reinforce,, need shorten fan blade on the one hand for fan blade does not bump drag-line; Need reduce the tie point between drag-line and the pylon on the other hand; Promptly can only be in the pylon stage casing stay guy, obviously such structure can make pylon increase greatly, so be suitable for use on the small-sized wind power generator.Though adopted above-mentioned various measure, pylon is still happened occasionally by the accident that strong wind blows down.Owing to have above-mentioned problem, on the at present large-scale wind power generating set, have to adopt more and more the concrete pylon.This pylon makes engineering work load, transport volume increase undoubtedly.
The model utility content
Thereby the purpose of the utility model provides a kind of capacity that can use linear leaf to increase the wind-powered electricity generation unit, can overcome the problem that pylon is toppled in strong wind, can make a kind of wind-powered electricity generation unit that whole wind power generator group is in light weight, intensity is high.In order to address the above problem; A kind of wind-powered electricity generation unit of the utility model comprises pylon; Drag-line; Cabin assembly part and wind wheel is characterized in that in its drag-line that one deck drag-line topmost is connected the top of pylon, and the quick tension device of the drag-line of tension cable fast is housed on the drag-line of upper strata when running into high wind.Aforesaid a kind of wind-powered electricity generation unit is characterized in that the driftage position-limit mechanism that prevents blade collision drag-line being installed in that leeward is housed in the wind-powered electricity generation unit of wind wheel.
Aforesaid a kind of wind-powered electricity generation unit; It is characterized in that on drag-line, being provided with the horizontal device that draws of the adjustable drag-line of pulling force, the horizontal device that draws of drag-line is made up of drag-line and oil cylinder, and the horizontal end of device that draws of drag-line is connected with drag-line; The other end is connected with an end of oil cylinder, and the other end of oil cylinder is connected with pylon.
Just can obtain useful effect after adopting such structure from following two aspects.
1. can use linear leaf to increase generated energy.
2. can adopt the drag-line that is fixed on pylon top, laterally hold pylon, prevent to be blown down, even drag-line becomes 60 degree angles still can accomplish easily with vertical line, so increased the ability of resisting blast by strong wind with wide-angle.Obviously can also alleviate pylon weight effectively.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the plan view of first kind of mode of execution of a kind of wind-powered electricity generation unit of the utility model.
Fig. 2 is the plan view of second kind of mode of execution of a kind of wind-powered electricity generation unit of the utility model.
Fig. 3 is the plan view of the third mode of execution of a kind of wind-powered electricity generation unit of the utility model.
Fig. 4 is the enlarged view at I place among Fig. 1.
Fig. 5 is equipped with the horizontal plan view that draws the wind-powered electricity generation unit of device of drag-line.
Embodiment
In conjunction with Fig. 1, if anti-down fore stay 4 and anti-down backstay 8 are not installed, structure so shown in Figure 1 is exactly the widest a kind of upwind wind-powered electricity generation unit of present using scope.Comprising being installed in blade 7 on the wheel hub and the wind wheel of forming 1, cabin assembly 2 assembles pylon 3 by three joint steel cylinders.The lower end of pylon 3 is fixed on the basis, makes pylon form the structure of an overhang.In the power generation process, wind is on the high wind wheel 1 of tens meters even rice up to a hundred, and obviously to be added in the pylon root all be very big with the moment of flexure that is added on the basis to wind-force.In order to bear this moment of flexure; People have taked a lot of measures; For example make down the thick thin shape that to pylon; Especially when adopting the pylon of truss structure, the pylon bottom can be done slightlyer, does to such an extent that too slightly can run into the restriction of this factor of blade but this measure has but received the pylon bottom.People also adopted the measure that reduces pylon root moment of flexure with drag-line in addition, but for blade does not bump drag-line, the tie point of drag-line and pylon can only be located at below the pylon middle part, so the effect that can play is limited.Just because of above-mentioned reason, present wind-powered electricity generation unit can only guarantee normal power generation under not too big wind speed, and the generation outage and take shelter from the wind with driftage and the method that becomes the slurry distance of when wind speed is big, having to.Though adopted above-mentioned various measure, when a gale is blowing, people can only see helplessly that still expensive pylon and power generating equipment are blown down by strong wind, feel simply helpless.The utility model has been set up one deck drag-line in the top of pylon; Three of the minimum needs of this layer drag-line are generally four or five, for the ease of distinguishing; Here call anti-down fore stay 4 to the upper strata drag-line that is in the same side with wind wheel 1 temporarily, remaining upper strata drag-line is called anti-down backstay 8.Because wind wheel 1 is the variation of box haul and rotating around pylon, so so-called anti-down fore stay 4 can change mutually with anti-down backstay 8.In a kind of wind-powered electricity generation unit of the utility model of first kind of mode of execution normal power generation, anti-down fore stay 4 all is the position that is in along the vertical below of pylon with anti-down backstay 8, and purpose is to prevent that blade from running into anti-down fore stay 4.When wind speed transfinited, at first blower fan shut down, and regulated to become to starch and take shelter from the wind apart from device and yaw device, and the demeanour of sweeping that sees through blade 7 to anti-down fore stay 4 is then enclosed, and promptly between two blades, passes, and is stretched between rope linkage coupling 11 and the drag-line basis 6.Because anti-down fore stay 4 is connected the top of pylon 3; The drag-line basis 6 of anti-down fore stay 4 is to the distance between the tower foundation 9; So anti-down moment is big; Be the power of wind effect on wind wheel 1 directly by anti-down fore stay 4 balances, scraped to such an extent that fracture so can prevent pylon effectively by strong wind from the pylon root.Certainly in order to adapt to the variation of wind direction, anti-down backstay 8 is also answered tensioning.Knowing from above-mentioned, though the utility model can not make the wind speed range of normal power generation increase, is tangible at the beneficial effect aspect protection wind-powered electricity generation unit and the personal security.
In conjunction with Fig. 2, second kind of mode of execution of a kind of wind-powered electricity generation unit of the utility model is a kind of down wind direction formula wind-powered electricity generation unit, and it is different with first kind of mode of execution for this point.Can know that from first kind of mode of execution anti-down fore stay 4 is in the direction of the wind comes from, could tensioning when having only the wind wheel stall, and play the effect of balance wind-force, so the wind speed range that first kind of mode of execution can generate electricity is with prior art is identical at present.Second kind of mode of execution in contrast; What be in the direction of the wind comes from is anti-down backstay 8; It is in the back side of wind wheel 1, does not influence the rotation of wind wheel 1 after its tensioning, will be provided with driftage limit stoper 22 certainly; Driftage limit stoper 22 is that the restriction wind wheel forwards the device of a side of the anti-down drag-line that is tensioned to, prevents that blade from running into anti-down backstay 8.Still can continue generating when wind speed is big like this, promptly first beneficial effect of second kind of mode of execution is the wind speed range that has increased normal power generation, can be multiple electric, and can improve power grid quality in existing wind-powered electricity generation unit generation outage continued generating.Since anti-down fore stay 4 and anti-down backstay 8 can reduce the moment of flexure of pylon 3 roots greatly, also just allow to reduce greatly the bending resistant section coefficient of pylon so certainly, thereby weight reduction reduces cost.Can also solve the problem of transportation superelevation through the way that reduces tower diameter.These also are the beneficial effects of second kind of mode of execution.For fear of pylon 3 unstabilitys and increase tower frame strength; Increase lower floor's drag-line 5 in second kind of mode of execution, gone up drag-line 12, upward prevented unstability drag-line 13 and following anti-unstability drag-line 14; For blade 7 is not run into drag-line 12; Blade 7 has adopted the structure of outward inclining, and these structures also can be used in first kind of mode of execution.
In conjunction with Fig. 3, the third mode of execution and preceding two kinds similar.Because this mode of execution is upwind wind-powered electricity generation unit, anti-down fore stay 4 has only after the wind-powered electricity generation unit stops operating and just can come into operation, so before anti-down fore stay 4 came into operation, pylon 3 all need have enough strength and stiffness with tower foundation 9.Strengthen drag-line 22 and the lower floor's drag-line 5 that prevents the pylon unstability so increased in the third mode of execution, and tower foundation 9 has been deepened.Since the basis is darker, increase the length of pylon pipe nipple so when adopting the jack-block erection tower, done a deep hole that can hold a part of pylon on the tower foundation 9, so can make pylon pipe nipple lengthening, reduce the number of ports of pylon.So also just can reduce the maintenance load of pylon 3.
In conjunction with Fig. 4 and Fig. 1, Fig. 2; The tensioning method of anti-down fore stay 4 and anti-down backstay 8 has multiple in aforementioned three kinds of mode of executions; Hinging structure can be adopted in its two ends, in order to operate tensioning methods such as also can adopting winch traction, chain sling tension and oil cylinder tensioning rapidly.Fig. 4 is a kind of schematic representation with the cam mechanism tensioning.Guide rail 15 and curved guide rail 16 comprising being connected with basis 6 also comprise the slide block 17 that is connected with anti-down fore stay 4 lower ends, and slide block 17 can slide along guide rail 15 and curved guide rail 16.During the wind-powered electricity generation unit generation, do not run into anti-down fore stay 4 for blade 7, anti-down fore stay 4 is in relaxed state, and its epimere is sagging along pylon 3, and the slide block 17 of lower end is in guide rail 15, and from the nearer place of pylon.When finding that wind speed will transfinite, wind wheel 1 stops operating.Along with slide block 17 is moved to the left, anti-down fore stay 4 is straightened quickly, and when slide block 17 moved in the curved guide rail 16, because of the slide block pressure angle increases, the speed that is straightened slowed down, but this moment near becoming straight line, and certain self-lock ability is arranged.Fixing slide block then.This is the working state of anti-down fore stay 4.Certainly this cam mechanism also can be used in the upper end of anti-down fore stay 4, can also be used for anti-down backstay 8 and other drag-line.The control mode of this cam mechanism also has multiple, can control manually, also can the wind direction sensor acquisition to signal pass to driftage limit stoper 22 and promote the power plant that slide block 17 moves, control the tensioning of drag-line automatically.
In conjunction with Fig. 5, in aforementioned three kinds of mode of executions, in order to reduce the amount of pylon, in anti-down fore stay 4, anti-down backstay 8 and other drag-line, the horizontal device that draws of drag-line can be installed because of being swung by wind.The horizontal drag-line 18 that draws device to comprise an end to be connected of drag-line among Fig. 5, be connected the oil cylinder 20 that the other end is connected with pylon 3 with drag-line 18 for pulley 19, an end of drag-line 18 guiding with anti-down fore stay 4.On the oil cylinder 20 damping member can also be installed.When oil cylinder 20 shrank, anti-down fore stay 4 meeting quilts are stretch bending slightly.Anti-down fore stay 4 can be stretching by pylon when pylon 3 is swung to the right, and the oil in the pressurized chamber of oil cylinder 20 can be extruded at this moment, absorbs energy, reduces the amplitude of fluctuation of pylon.Certainly drag-line 18 also can replace with connecting rod, if be installed in connecting rod and oil cylinder 20 on same the straight line this moment, can also save pulley 19, and oil cylinder 20 also can be connected with pylon 3 through drag-line.
Claims (3)
1. a kind of wind-powered electricity generation unit that belongs to horizontal axis wind-driven generator that is used for wind-power electricity generation; Comprise pylon; Drag-line; Cabin assembly part and wind wheel is characterized in that in its drag-line that one deck drag-line topmost is connected the top of pylon, and the quick tension device of the drag-line of tension cable fast is housed on the drag-line of upper strata when running into high wind.
2. a kind of wind-powered electricity generation unit as claimed in claim 1 is characterized in that the driftage position-limit mechanism that prevents blade collision drag-line being installed in that leeward is housed in the wind-powered electricity generation unit of wind wheel.
3. a kind of wind-powered electricity generation unit as claimed in claim 1; It is characterized in that on drag-line, being provided with the horizontal device that draws of the adjustable drag-line of pulling force, the horizontal device that draws of drag-line is made up of drag-line and oil cylinder, and the horizontal end of device that draws of drag-line is connected with drag-line; The other end is connected with an end of oil cylinder, and the other end of oil cylinder is connected with pylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204622710U CN202391653U (en) | 2011-11-21 | 2011-11-21 | Wind turbine generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204622710U CN202391653U (en) | 2011-11-21 | 2011-11-21 | Wind turbine generator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391653U true CN202391653U (en) | 2012-08-22 |
Family
ID=46666583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204622710U Expired - Fee Related CN202391653U (en) | 2011-11-21 | 2011-11-21 | Wind turbine generator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391653U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870295A (en) * | 2017-02-24 | 2017-06-20 | 西北工业大学 | A kind of Anti-Typhoon inexpensive tower control system |
| CN107084097A (en) * | 2017-06-05 | 2017-08-22 | 西北工业大学 | The Anti-Typhoon inexpensive tower control system of upwind |
| CN107630790A (en) * | 2017-09-12 | 2018-01-26 | 西北工业大学 | A kind of Anti-Typhoon passive unloading system of offshore wind farm |
| CN107905946A (en) * | 2017-10-23 | 2018-04-13 | 西北工业大学 | A kind of passive load reduction control system of Anti-Typhoon master of offshore wind farm |
-
2011
- 2011-11-21 CN CN2011204622710U patent/CN202391653U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870295A (en) * | 2017-02-24 | 2017-06-20 | 西北工业大学 | A kind of Anti-Typhoon inexpensive tower control system |
| CN107084097A (en) * | 2017-06-05 | 2017-08-22 | 西北工业大学 | The Anti-Typhoon inexpensive tower control system of upwind |
| CN107630790A (en) * | 2017-09-12 | 2018-01-26 | 西北工业大学 | A kind of Anti-Typhoon passive unloading system of offshore wind farm |
| CN107905946A (en) * | 2017-10-23 | 2018-04-13 | 西北工业大学 | A kind of passive load reduction control system of Anti-Typhoon master of offshore wind farm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20161121 |