CN104895748B - Wind-driven generator and Anti-Typhoon method thereof - Google Patents
Wind-driven generator and Anti-Typhoon method thereof Download PDFInfo
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- CN104895748B CN104895748B CN201510224047.0A CN201510224047A CN104895748B CN 104895748 B CN104895748 B CN 104895748B CN 201510224047 A CN201510224047 A CN 201510224047A CN 104895748 B CN104895748 B CN 104895748B
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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 invention discloses a kind of wind-driven generator and Anti-Typhoon method thereof, wind-driven generator comprises tower cylinder and is fixed on two blades of described tower cylinder upper end, rotating drive mechanism drive described blade and described tower cylinder perpendicular or parallel, the sidewall that tower cylinder is corresponding with described blade is provided with telescopic mechanical arm, the front end of described mechanical arm is provided with clamping part, after mechanical arm stretches out, and when described blade is in parallel with tower cylinder, described clamping part can clamp described blade.When typhoon is attacked, rotated by rotating drive mechanism rotation blade, make it be in the state parallel with tower cylinder, then mechanical arm is stretched out, make clamping part clamp blade, blade of holding with a firm grip makes the top of blade and tower cylinder become one structure, blade institute by wind conducts to tower barrel base through mechanical arm, and make blade and tower cylinder top strengthen anti-typhoon capacity each other, wind blows away from tower cylinder both sides, alleviate tower cylinder top wind-force further, thus strengthen the wind loading rating of wind-driven generator top and entirety.
Description
Technical field
The present invention relates to technical field of wind power generation, particularly relate to a kind of wind-driven generator and Anti-Typhoon method thereof.
Background technique
At present, wind-power electricity generation has become fastest-rising renewable and clean energy resource, especially offshore wind farm wind speed is high, wind-force is stablized, becalm interference less, generated energy is large, following Wind Power Generation turns to sea to be inexorable trend by land.
To develop the pioneer Europe North Sea relatively right up and down environment different from offshore wind farm, and China's offshore wind farm all faces typhoon every year to be threatened.Typhoons " Sang Mei " in 2006 and 2014 Super Typhoon " Wei Maxun " Cangnan County, Zhejiang Province wind energy turbine set, Wenchang, hainan wind energy turbine set and Xuwen, Zhanjiang warrier's wind energy turbine set multiple stage blower fan pole are collapsed, cause significant investment to lose.
At present, in order to resist the loss that typhoon causes offshore wind farm, the measure mainly taked has following two schemes:
(1) thicken blower fan tower barrel wall thickness and strengthen fan blade and the tower cylinder strength of materials, this measure will increase blower fan cost and blower foundation builds difficulty, adds the investment of large-engineering entirety.
(2) adopt guiding control technique, make blower fan head and blade ridge reduce windward side towards typhoon, this measure need provide reliable Positioning Power from outside, has potential safety hazard when marine wind field electric network from collapsing.
Visible, all there is certain limitation in above-mentioned two schemes, is not easy to popularize application in an all-round way.
Summary of the invention
Based on this, the invention provides a kind of wind-driven generator and Anti-Typhoon method thereof, it can overcome the defect of prior art, and typhoon can be avoided to damage wind-driven generator, and it is reliable and stable, and cost is low, little investment.
Its technological scheme is as follows:
A kind of wind-driven generator, it comprises tower cylinder and is fixed on two blades of described tower cylinder upper end, also comprise the rotating drive mechanism be connected with described blade, described rotating drive mechanism drive described blade and described tower cylinder perpendicular or parallel, the sidewall that described tower cylinder is corresponding with described blade is provided with telescopic mechanical arm, and the front end of described mechanical arm is provided with clamping part, after described mechanical arm stretches out, and when described blade is in parallel with tower cylinder, described clamping part can clamp described blade.
Below further technological scheme is described:
Wherein in an embodiment, described tower cylinder is hollow-core construction, and its sidewall is provided with opening, and described opening is provided with can the Sealing of folding, and described mechanical arm to be fixed in described tower cylinder by elastic mechanism and corresponding with described opening.
Wherein in an embodiment, described mechanical arm is provided with strain gauge, and described strain gauge and control gear are electrically connected.
Wherein in an embodiment, described tower cylinder comprises tower cylinder and lower tower cylinder, described lower tower cylinder has dug receiving cavity downwards from its top, described upper tower cylinder part extend in described receiving cavity, and the lifting mechanism be provided with in described receiving cavity for vertically moving described upper tower cylinder, described upper tower cylinder after lifting is removably fixedly connected with described lower tower cylinder, the described upper tower cylinder after moving down and described lower tower cylinder part socket.
Wherein in an embodiment, be provided with multiple first positioning hole near top place inside described lower tower cylinder, the outer wall of described upper tower cylinder is provided with multiple flexible positioning pieces that can coordinate with described first positioning hole.
Wherein in an embodiment, be also provided with multiple second positioning hole near middle part and/or bottom place inside described lower tower cylinder, described second positioning hole can coordinate with described flexible positioning piece.
Wherein in an embodiment, the elastic component that described flexible positioning piece comprises detent ball and is fixedly connected with described detent ball, described detent ball can coordinate with described first positioning hole or the second positioning hole.
A kind of Anti-Typhoon method of wind-driven generator, it comprises the steps:
(1) receive typhoon alarm command, wind-driven generator stops generating;
(2) to make it rotate to be parallel with tower cylinder for rotating drive mechanism drive vane;
(3) mechanical arm stretches out, and to be held with a firm grip blade by clamping part.
Wherein in an embodiment, step (3) also comprises strain gauge and detects mechanical arm to the stress of holding with a firm grip of blade, and continuous reconditioner mechanical arm is to the degree of holding with a firm grip of blade, until the stress of holding with a firm grip detected meets preset requirement.
Wherein in an embodiment, it also comprises:
Step (4) receives typhoon END instruction, and mechanical arm unclamps blade and recovers initial position, sends mechanical arm signal in place;
Step (5) receives mechanical arm signal in place, wind-driven generator normal power generation.
Beneficial effect of the present invention is:
Above-mentioned wind-driven generator and Anti-Typhoon method thereof are when typhoon is attacked, rotated by rotating drive mechanism rotation blade, it is made to be in the state parallel with tower cylinder, again mechanical arm is stretched out, clamping part is made to clamp blade, blade of holding with a firm grip makes the top of blade and tower cylinder become one structure, blade institute by wind conducts to tower barrel base through mechanical arm, blade and tower cylinder top is made to strengthen anti-typhoon capacity each other, and the ridge streamlined structure of blade makes the wind comes from from tower cylinder both sides and blows away, alleviate tower cylinder top wind-force further, thus strengthen the wind loading rating of wind-driven generator top and entirety.
Accompanying drawing explanation
Fig. 1 is the structural representation one of the wind-driven generator described in the embodiment of the present invention;
Fig. 2 is the sectional view of A-A line in Fig. 1;
Fig. 3 is the structural representation two of the wind-driven generator described in the embodiment of the present invention;
Fig. 4 is the structural representation three of the wind-driven generator described in the embodiment of the present invention;
Fig. 5 is the sectional view of B-B line in Fig. 4;
Fig. 6 is the structural representation one of the tower cylinder of wind-driven generator described in the embodiment of the present invention;
Fig. 7 is the structural representation two of the tower cylinder of wind-driven generator described in the embodiment of the present invention.
Description of reference numerals:
10, tower cylinder, 12, upper tower cylinder, 122, flexible positioning piece, 22, lower tower cylinder, 220 receiving cavities, 222, lifting mechanism, the 224, first positioning hole, the 226, second positioning hole, 228, opening, 229, Sealing, 32, blade, 34, mechanical arm, 342, clamping part, 346, elastic mechanism.
Embodiment
Below embodiments of the invention are described in detail:
As shown in Figures 1 and 3, a kind of wind-driven generator, it comprises tower cylinder 10 and is fixed on two blades 32 of described tower cylinder 10 upper end, also comprise the rotating drive mechanism be connected with described blade 32, described rotating drive mechanism drives described blade 32 perpendicular or parallel with described tower cylinder 10, the sidewall that described tower cylinder 10 is corresponding with described blade 32 is provided with telescopic mechanical arm 34, the front end of described mechanical arm 34 is provided with clamping part 342, after described mechanical arm 34 stretches out, and when described blade 32 is in parallel with tower cylinder 10, described clamping part 342 can clamp described blade 32.
Described wind-driven generator is when typhoon is attacked, rotated by rotating drive mechanism rotation blade 32, it is made to be in the state parallel with tower cylinder 10, again mechanical arm 34 is stretched out, the clamping part 342 of mechanical arm 34 front end is made to clamp blade 32, blade 32 of holding with a firm grip makes the top of blade 32 and tower cylinder 10 become one structure, blade 32 by wind conduct to tower cylinder 10 basis through mechanical arm 34, blade 32 and tower cylinder 10 top is made to strengthen anti-typhoon capacity each other, and the ridge streamlined structure of blade makes the wind comes from from tower cylinder 10 both sides and blows away, alleviate tower cylinder top wind-force further, thus strengthen the wind loading rating of wind-driven generator top and entirety.
As shown in Figures 2 and 3, described tower cylinder 10 is hollow-core construction, and its sidewall is provided with opening 228, and described opening 228 place is provided with can the Sealing 229 of folding, and described mechanical arm 34 to be fixed in described tower cylinder 10 by elastic mechanism 346 and corresponding with described opening 228.When mechanical arm 34 does not use, described elastic mechanism 346 is in contraction state, and mechanical arm 34 is accommodated in described tower cylinder 10 by described opening 228 by whole, is closed again, do not affect the outward appearance of tower cylinder in outside by described Sealing 229.
As shown in figures 2 and 5, the mating shapes of the side that the shape of described clamping part 342 is relative with described tower cylinder 10 with described blade 32.As shown in Figure 5, which illustrating described blade 32 is streamlined structure, and its side relative with described mechanical arm 34 is provided with protuberance, then described clamping part 342 is provided with the recess relative with described protuberance.
Described mechanical arm 34 arranges strain gauge, described strain gauge can detect mechanical arm 34 and to hold with a firm grip the grip force of blade 32, can this information be sent to supervisory system, and the grip force of reconditioner mechanical arm 34 pairs of blades 32, when the grip force detected meets preset requirement, namely produce leaf position and be positioned to function signal, guarantee that blade 32 can stand to locate the test of typhoon.
As shown in FIG. 6 and 7, described tower cylinder 10 comprises tower cylinder 12 and lower tower cylinder 22, described lower tower cylinder 22 top has dug receiving cavity 220 downwards, described upper tower 12 part extend in described receiving cavity 220, and the lifting mechanism 222 be provided with in described receiving cavity 220 for vertically moving described upper tower cylinder 12, described upper tower cylinder 12 after lifting is removably fixedly connected with described lower tower cylinder 22, the described upper tower cylinder 12 after moving down and described lower tower cylinder 22 part socket.
As shown in Figure 3, the preferred described lower tower cylinder 22 of the present embodiment is hollow-core construction, described receiving cavity 220 is formed to make its inside at the top borehole of described lower tower cylinder 22, and the size of its opening is not less than the size of the cross section of described upper tower cylinder 12 bottom the widest position, thus make described upper tower cylinder 12 can be partially accommodated in described receiving cavity 220, i.e. described upper tower cylinder 12 and described lower tower cylinder 22 part socket.Described opening 228 is located on described upper tower cylinder 12.The shape of described receiving cavity 220 and the shape of described upper tower cylinder 12 adapt.When upper tower cylinder 12 part is nested in described lower tower cylinder 22, make described upper tower cylinder 12 and described lower tower cylinder 22 no-float, structural stability and attractive in appearance.When described upper tower cylinder 12 and described lower tower cylinder 22 are cylindrical, namely the diameter of described receiving cavity 220 is greater than the diameter of described upper tower cylinder 12.
The length of described upper tower cylinder 12 is longer than the length of described lower tower cylinder 22.When upper tower cylinder 12 is embedded in lower tower cylinder 22, upper tower cylinder 12 part exceeds described lower tower cylinder 22, and when upper tower cylinder 12 moves, lifting mechanism 222 does not need to move past high height, guarantees the stability of its structure.Described lifting mechanism 222 is preferably hydraulic cylinder.
As shown in FIG. 6 and 7, be provided with multiple first positioning hole 224 near top place inside described lower tower cylinder 22, the outer wall of described upper tower cylinder 12 is provided with multiple flexible positioning pieces 122 that can coordinate with described first positioning hole 224.When described upper tower cylinder 12 moves return to normal level time, namely when described flexible positioning piece 122 is relative with described first positioning hole 224, described flexible positioning piece 122 is stuck in described first positioning hole 224 after can eject, can coordinating simultaneously by multiple flexible positioning piece 122 and the first positioning hole 224, by upper tower cylinder 12 and the fixation of lower tower cylinder 22, the mode that traditional bolt coordinates can be replaced.The setting position of described first positioning hole 224 and the setting position of described flexible positioning piece 122 can as required, and in selection, tower cylinder 12 and lower tower cylinder 22 coordinates the degree of depth.
In like manner, be also provided with multiple second positioning hole 226 near middle part and/or bottom place inside described lower tower cylinder 22, described second positioning hole 226 can coordinate with described flexible positioning piece 122.When described upper tower cylinder 12 part extend in described lower tower cylinder 22, described positioning elastic part 122 move down until relative with described second positioning hole 226 time, positioning elastic part 122 can snap in described second positioning hole 226, and what make that tower cylinder 12 and lower tower cylinder 22 can be firm is fixedly connected with.
Preferred multiple described first positioning hole 224 is located in same level, and the quantity of described flexible positioning piece 122 is equal with described first positioning hole 224, realizes the one_to_one corresponding of flexible positioning piece 122 and the first positioning hole 224.Correspondingly, preferably described second positioning hole 226 is equal with the quantity of described first positioning hole 224, and is located on same vertical curve, upper and lower one_to_one corresponding, flexible positioning piece 122 when relevant position, can be coordinated with the first positioning hole 224 and the second positioning hole 226 on same vertical curve respectively.Preferably the quantity of described first positioning hole 224, second positioning hole 226 and described elastic mechanism 346 is 4-6.
A kind of Anti-Typhoon method of wind-driven generator, it comprises the steps:
(1) receive typhoon alarm command, wind-driven generator stops generating;
(2) to make it rotate to be parallel with tower cylinder 10 for rotating drive mechanism drive vane 32;
(3) mechanical arm 34 stretches out, and to be held with a firm grip blade 32 by clamping part 342.
Wherein in an embodiment, step (3) also comprises the stress of holding with a firm grip that strain gauge detects mechanical arm 34 pairs of blades 32, and the degree of holding with a firm grip of continuous reconditioner mechanical arm 34 pairs of blades, the hold stress of the mechanical arm that strain gauge detects to blade also can change thereupon, and constantly adjustment is until the stress of holding with a firm grip detected meets preset requirement.Namely preset requirement described herein is experimentally obtain, and makes the value of the power of the blade 32 of holding with a firm grip that mechanical arm 34 can be firm, guarantees that blade 32 is not damaged by typhoon.
Wherein in an embodiment, it also comprises:
Step (4) receives typhoon END instruction, and mechanical arm 34 unclamps blade 32 and recovers initial position, sends mechanical arm signal in place;
Step (5) receives mechanical arm signal in place, wind-driven generator normal power generation.
After typhoon terminates, described wind-power electricity generation chance is subject to typhoon instruction, and according to step (4) and step (5) work, control gear according to the typhoon END instruction releaser mechanical arm received to the action of blade 32, now, initial position is returned to as required again by rotary drive mechanism drive vane 32, thus the work of wind-driven generator normal power generation.
In another embodiment, described tower cylinder 10 comprises tower cylinder 12 and lower tower cylinder 22, in step (3), also described upper tower cylinder 12 to be driven to sink by described lifting mechanism 222, flexible positioning piece 122 can depart from described first positioning hole 224, upper tower cylinder 12 socket after sinking enters in described lower tower cylinder 22, newly being coordinated with described second positioning hole 226 to cutting 122 more afterwards, being fixed upper tower cylinder 12 with the position of lower tower cylinder 22 by elasticity.And after typhoon terminates, contrary with above-mentioned steps, make it return to normal level by tower cylinder 12 on lifting mechanism 222 again lifting.
Each technical characteristics of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristics in above-described embodiment is not all described, but, as long as the combination of these technical characteristicss does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a wind-driven generator, it comprises tower cylinder and is fixed on two blades of described tower cylinder upper end, it is characterized in that, also comprise the rotating drive mechanism be connected with described blade, described rotating drive mechanism drive described blade and described tower cylinder perpendicular or parallel, the sidewall that described tower cylinder is corresponding with described blade is provided with telescopic mechanical arm, the front end of described mechanical arm is provided with clamping part, after described mechanical arm stretches out, and when described blade is in parallel with tower cylinder, described clamping part can clamp described blade.
2. wind-driven generator according to claim 1, it is characterized in that, described tower cylinder is hollow-core construction, and its sidewall is provided with opening, described opening is provided with can the Sealing of folding, and described mechanical arm to be fixed in described tower cylinder by elastic mechanism and corresponding with described opening.
3. wind-driven generator according to claim 1, is characterized in that, described mechanical arm is provided with strain gauge, and described strain gauge and control gear are electrically connected.
4. the wind-driven generator according to claims 1 to 3 any one, it is characterized in that, described tower cylinder comprises tower cylinder and lower tower cylinder, described lower tower cylinder has dug receiving cavity downwards from its top, described upper tower cylinder part extend in described receiving cavity, and the lifting mechanism be provided with in described receiving cavity for vertically moving described upper tower cylinder, the described upper tower cylinder after lifting is removably fixedly connected with described lower tower cylinder, the described upper tower cylinder after moving down and described lower tower cylinder part socket.
5. wind-driven generator according to claim 4, is characterized in that, be provided with multiple first positioning hole near top place inside described lower tower cylinder, the outer wall of described upper tower cylinder is provided with multiple flexible positioning pieces that can coordinate with described first positioning hole.
6. according to asking wind-driven generator according to claim 5, it is characterized in that, be also provided with multiple second positioning hole near middle part and/or bottom place inside described lower tower cylinder, described second positioning hole can coordinate with described flexible positioning piece.
7. wind-driven generator according to claim 6, is characterized in that, the elastic component that described flexible positioning piece comprises detent ball and is fixedly connected with described detent ball, and described detent ball can coordinate with described first positioning hole or the second positioning hole.
8. the Anti-Typhoon method of wind-driven generator, it is characterized in that, it comprises the steps:
(1) receive typhoon alarm command, wind-driven generator stops generating;
(2) to make it rotate to be parallel with tower cylinder for rotating drive mechanism drive vane;
(3) mechanical arm stretches out, and to be held with a firm grip blade by clamping part.
9. the Anti-Typhoon method of wind-driven generator according to claim 8, it is characterized in that, step (3) also comprises strain gauge and detects mechanical arm to the stress of holding with a firm grip of blade, and continuous reconditioner mechanical arm is to the degree of holding with a firm grip of blade, until the stress of holding with a firm grip detected meets preset requirement.
10. the Anti-Typhoon method of wind-driven generator according to claim 8, it is characterized in that, it also comprises:
Step (4) receives typhoon END instruction, and mechanical arm unclamps blade and recovers initial position, sends mechanical arm signal in place;
Step (5) receives mechanical arm signal in place, wind-driven generator normal power generation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510224047.0A CN104895748B (en) | 2015-05-05 | 2015-05-05 | Wind-driven generator and Anti-Typhoon method thereof |
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| CN201510224047.0A CN104895748B (en) | 2015-05-05 | 2015-05-05 | Wind-driven generator and Anti-Typhoon method thereof |
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| CN104895748B true CN104895748B (en) | 2016-03-16 |
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| CN107084097A (en) * | 2017-06-05 | 2017-08-22 | 西北工业大学 | The Anti-Typhoon inexpensive tower control system of upwind |
| CN110645152A (en) * | 2019-11-14 | 2020-01-03 | 南京航空航天大学 | Wind turbine tower system with strong wind resistance function |
| CN112253407B (en) * | 2020-11-12 | 2021-07-02 | 上海电气风电集团股份有限公司 | Typhoon-resistant device of wind driven generator |
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| JP2006017094A (en) * | 2004-07-01 | 2006-01-19 | Loopwing Kk | Wind force prime mover braking method |
| CN101832237A (en) * | 2010-06-04 | 2010-09-15 | 西安交通大学 | Pylon structure of wind power generator |
| CN103122828B (en) * | 2011-11-21 | 2015-11-25 | 李泽宇 | A kind of Wind turbines |
| CN104295449B (en) * | 2014-09-23 | 2015-07-15 | 丁健威 | Wind power generation device with rear-mounted blades |
| CN204663758U (en) * | 2015-05-05 | 2015-09-23 | 中国能源建设集团广东省电力设计研究院有限公司 | Wind-driven generator |
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