CN102878012A - Device of starting and accelerating on weak wind and decelerating on strong wind for wind driven generator - Google Patents
Device of starting and accelerating on weak wind and decelerating on strong wind for wind driven generator Download PDFInfo
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- CN102878012A CN102878012A CN2012103658502A CN201210365850A CN102878012A CN 102878012 A CN102878012 A CN 102878012A CN 2012103658502 A CN2012103658502 A CN 2012103658502A CN 201210365850 A CN201210365850 A CN 201210365850A CN 102878012 A CN102878012 A CN 102878012A
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- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a device of starting and accelerating on weak wind and decelerating on strong wind for a wind driven generator. The device is characterized in that two increment plates (201 and 202) are connected to a casing of the generator behind blades (1) by symmetrically centering on a generator shaft through a hinge (9), and plate-abutting springs (1101 and 1102) are disposed between the increment plates and the casing respectively. Normally, tension of the plate-abutting springs enables the increment plates to be flat, wind flowing through the blades spreads out radially along the walls of the plates, and accordingly windward area of the blades is increased and generator speed is increased. In addition, when the increment plates are under the action of strong wind, the plate-abutting springs (1101 and 1102) enable the plates to change from being flat to tilting back, and accordingly wind incremental action disappears, blade speed is reduced and operation safety of the wind driven generator is guaranteed. The device in the mechanical structure is low in manufacturing and maintenance cost, high in stability and high in safety coefficient.
Description
Technical field
What the present invention relates to is wind-driven generator, especially a kind of weak wind startup, speed-raising and strong wind speed reducer that is applied on the wind-driven generator.
Background technique
Wind-power electricity generation is never exhausted pollution-free renewable and clean energy resource, attractes attention in the whole world.Available wind energy is 2 * 107mw on the earth, is 3 times of the energy summation that obtains of the annual coal combustion in the whole world, is 10 times that the water that can develop can total amount.Therefore, the relevant research and development of wind-driven generator are one of each national key projects.
The China territory is vast, and the shore line is long, and wind resource is abundant, the having a high potential of Wind Power Utilization, and the developed installation total capacity of land and wind energy on the sea reaches 7～1,200,000,000 kw even more than 2,500,000,000 kw.Therefore, wind-powered electricity generation has rich resource base, is the important component part of Chinese future energy resource structure.
Wind-power electricity generation is to utilize the wind-force effect, make the air vane rotation and drive the process that generator amature rotates generation current, namely the kinetic energy with wind is transformed into mechanical energy, again mechanical energy is converted into electric energy, therefore, wind speed is critical problem to wind-power electricity generation, and wind speed is too little, does not promote the fan blade rotation, can't generate electricity, slightly bigger wind speed, fan blade rotating speed are too low again, and generated energy is minimum; Yet wind-force is too large, and the too fast stall phenomenon that easily produces again of wind speed is destroyed generator.The present windmill technology of China can only be at wind speed 3m/s---could generate electricity between the 20m/s, but generated energy is quite faint, well below electric motor power.We know, the transfer power=rotating speed of wind-driven generator * torque, and visible wind speed is higher, and generated energy is larger.Therefore, how allowing fan blade obtain higher rotating speed in weak wind, is to improve the emphasis research topic that effectively does work at full capacity in the generator electric motor power.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of weak wind startup, speed-raising and strong wind speed reducer of wind-driven generator, can start the fan blade rotation when weak wind, improves the fan blade rotating speed, increasing electricity output.
For realizing described purpose, the technical solution used in the present invention is: the electric generator casing behind fan blade is installed the increment plate.Specifically after a while on the electric generator casing of position, centered by the generator arbor, symmetrically with chain connection two block incremental plates, also be provided with the follow block spring between increment plate and the casing at fan blade.
In the structure that technique scheme provides, when continuing to be subject to stopping of increment plate to the wind of generator rear motion behind the fan blade of flowing through, under the flattened state wooden partition of increment plate be radial to around diffusion.Because the increment plate is nearer apart from fan blade, this wind to diffusion all around will be the radial fan blade that acts on, until arrive the interior fan blade leaf body of whole increment board diameter scope, increase wind and acted on lifting surface area on the fan blade, formed a large amount of effective wind rates, improved generator speed, realized that the weak wind of the present invention starts the technical purpose of speed-raising.
With chain connection, also has a follow block spring between increment plate and the casing between increment plate and the casing.The follow block spring is against on the increment plate under normal circumstances; spring tension has ensured the flattened state of increment plate; when wind-force excessive; when surpassing the spring tension that arranges; spring is compressed; abdicated sweptback space length for the increment plate, the increment plate is just receded by under normal circumstances vertical flattened state and forms angle, has widened the distance of increment plate and fan blade; allow wind pass through fast; wind-force is larger, and the power that the increment plate leans on backward is larger, and angle is also larger; removed the speed-raising effect of increment plate; discharged the energy of wind, therefore, the follow block spring has in fact played the technique effect of strong wind protection.
Described two block incremental plates integral body under flattened state is circular, square or polygonal, and the plate face can be plane or corrugated surface.
Described increment plate is that 15-30cm is good apart from the crow flight distance of fan blade, too far can slacken return air and contact with the effective of fan blade, and certain potential safety hazard is too closely then arranged.
[0012] in the strong wind situation, because the increment plate after tilting has weakened positive angle of facining the wind, the wind-force that is subject to will reduce naturally, therefore, limit the outer rim of increment plate has a bend forward or turns up is used for increasing the pocket power to wind, forms the tension force that enough recoils resist spring, add big blade and the direct angle of increment plate, further discharge wind energy.
Compared with prior art, increment plate provided by the invention can stop the wind that continues behind the fan blade of flowing through to the motion of generator rear, force it to be radial to diffusion all around along wooden partition, then act on fan blade, until arrive the interior fan blade leaf body of whole increment board diameter scope, increase wind and acted on lifting surface area on the fan blade, formed a large amount of effective wind rates, improved generator speed.Simultaneously, follow block spring behind the increment plate has guaranteed when the increment plate is subject to the active force of high wind, automatically change into the heeling condition of leaning on backward from flattened state, the wind-force incremental contribution disappears, and the fan blade rotating speed slows down, and has ensured the safe operation of wind-driven generator, the invention belongs to mechanical structure, manufacturing and maintenance cost are low, and stability is strong, and safety coefficient is high.
The present invention will be further described below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the increment of the present invention composition that hardens
Fig. 2 is follow block spring fitting position view
Embodiment
As shown in Figure 1, at fan blade 1 front end of the electric generator casing at about 15～30cm place after a while, the symmetrical two block incremental plates 201 and 202 of installing centered by the generator arbor, this increment plate is movably connected on the electric generator casing by hinge 9.Structural drawing has clearly illustrated when the wind of three fan blades, 1 rear continuation to generator rear motion of flowing through is subject to increment plate 201,202 stop, along the lower attitude of flattened state (annotate: flattened state is the working state of increment plate under weak air quantity and non-dangerous air quantity weather conditions)) wooden partition of lower increment plate be radial to around diffusion.Because increment plate 201,202 nearer apart from fan blade 1, this wind to diffusion all around will be the radial fan blade that acts on, until arrive the interior fan blade leaf body of whole increment board diameter scope, increase wind and acted on lifting surface area on the fan blade, formed a large amount of effective wind rates, improved generator speed, realized that the weak wind of the present invention starts the technical purpose of speed-raising.
As shown by the downward arrows, in the strong wind situation, because the increment plate after tilting has weakened positive angle of facining the wind, the wind-force that is subject to will reduce naturally, therefore, and on the limit 12 that the outer rim of increment plate has a bend forward or turns up, be used for increasing the pocket power to wind, form the tension force that enough recoils resist spring, add big blade and the direct angle of increment plate, further discharge wind energy.
As shown in Figure 2, also be provided with follow block spring 1101 and 1102 between increment plate and the casing.When air quantity excessive, the power on the increment plate of acting on is when being supported on follow block spring 1101 between increment plate and the casing and 1102 support tension force, the increment plate namely levels off the exhibition state and by the rotation that the connects hinge 9 formation angle that recedes, has just removed the incremental contribution under the flattened state.Wind-force is larger, and the power that the increment plate leans on backward is larger, and the angle that increment plate and fan blade form is also just larger, is beneficial to wind and passes through fast, has evaded because strong wind stall causes the too fast machine breakdown that causes of generator speed, has ensured the safe operation of wind-driven generator.Along with weakening gradually of strong wind air quantity, weak to less than the setting tension force of tension spring 1101 and 1102 time, spring will back into flattened state again with the increment plate, continues the normal working that its increases fan blade effective wind rate.
Claims (5)
1. weak wind startup, speed-raising and the strong wind speed reducer on the wind-driven generator, comprise electric generator casing and fan blade (1), it is characterized in that: at fan blade (1) after a while on the electric generator casing of position, centered by the generator arbor, connect two block incremental plates (201,202) with hinge (9) symmetrically, also be respectively arranged with follow block spring (1101,1102) between increment plate and the casing.
2. weak wind startup, speed-raising and the strong wind speed reducer on the wind-driven generator according to claim 1 is characterized in that: the limit (12) that the outer rim of described increment plate has a bend forward or turns up.
3. weak wind startup, speed-raising and the strong wind speed reducer on the wind-driven generator according to claim 1 is characterized in that: increment plate (201,202) entire combination under flattened state is circular, square or polygonal.
4. weak wind startup, speed-raising and the strong wind speed reducer on the wind-driven generator according to claim 5, it is characterized in that: the plate face of increment plate (201,202) is plane or corrugated surface.
5. weak wind startup, speed-raising and the strong wind speed reducer on the wind-driven generator according to claim 1, it is characterized in that: increment plate (201,202) is 15-30cm apart from the crow flight distance of fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365850.2A CN102878012B (en) | 2012-09-14 | 2012-09-14 | Weak wind on wind-driven generator starts, raises speed and strong wind speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365850.2A CN102878012B (en) | 2012-09-14 | 2012-09-14 | Weak wind on wind-driven generator starts, raises speed and strong wind speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102878012A true CN102878012A (en) | 2013-01-16 |
| CN102878012B CN102878012B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210365850.2A Active CN102878012B (en) | 2012-09-14 | 2012-09-14 | Weak wind on wind-driven generator starts, raises speed and strong wind speed reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905951A (en) * | 2017-10-30 | 2018-04-13 | 燕山大学 | The adaptive wind-driven generator of plurality of pendulums paddle mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178518A (en) * | 1990-05-14 | 1993-01-12 | Carter Sr J Warne | Free-yaw, free-pitch wind-driven electric generator apparatus |
| CN2353919Y (en) * | 1997-06-09 | 1999-12-15 | 荆化 | Magnetic-assisted wind-driven rotary-wheel generating station |
| CN1295192A (en) * | 2000-12-21 | 2001-05-16 | 卢子清 | Ultra-low speed wind-driven generator |
| JP2001263219A (en) * | 2000-03-14 | 2001-09-26 | Yoshio Kinoshita | Forced wind power generator |
| CN203009157U (en) * | 2012-09-14 | 2013-06-19 | 安徽华科风电新能源科技有限公司 | Weak wind starting, speed-up and strong wind speed-reducing device on wind driven generator |
-
2012
- 2012-09-14 CN CN201210365850.2A patent/CN102878012B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178518A (en) * | 1990-05-14 | 1993-01-12 | Carter Sr J Warne | Free-yaw, free-pitch wind-driven electric generator apparatus |
| CN2353919Y (en) * | 1997-06-09 | 1999-12-15 | 荆化 | Magnetic-assisted wind-driven rotary-wheel generating station |
| JP2001263219A (en) * | 2000-03-14 | 2001-09-26 | Yoshio Kinoshita | Forced wind power generator |
| CN1295192A (en) * | 2000-12-21 | 2001-05-16 | 卢子清 | Ultra-low speed wind-driven generator |
| CN203009157U (en) * | 2012-09-14 | 2013-06-19 | 安徽华科风电新能源科技有限公司 | Weak wind starting, speed-up and strong wind speed-reducing device on wind driven generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905951A (en) * | 2017-10-30 | 2018-04-13 | 燕山大学 | The adaptive wind-driven generator of plurality of pendulums paddle mechanism |
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| Publication number | Publication date |
|---|---|
| CN102878012B (en) | 2015-08-19 |
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Owner name: LU'AN DOUBLE CHARGE TECHNOLOGY TRANSFER SERVICE CO Free format text: FORMER OWNER: ANHUI HUAKE WIND POWER NEW ENERGY TECHNOLOGY CO., LTD. Effective date: 20150623 |
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Inventor after: The inventor has waived the right to be mentioned Inventor before: Wang Haibo Inventor before: Wang Ling Inventor before: Wang Hongsheng |
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Effective date of registration: 20150623 Address after: 237000 Anhui Province, Lu'an city science and Technology Innovation Center Room 501 (the intersection of three road and Gaocheng Road) Applicant after: LIUAN SHUANGSHOU TECHNOLOGY TRANSFER SERVICE CO., LTD. Address before: 237000 Anhui Province, Lu'an city science and Technology Innovation Center (the 501 intersection of three road and Gaocheng Road) Applicant before: Anhui Huake Wind Power New Energy Technology Co., Ltd. |
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Effective date of registration: 20191127 Address after: 050000 No. 107 Tower North Road, Yuhua District, Hebei, Shijiazhuang Patentee after: China Electrical Construction Group Hebei Engineering Co., Ltd. Address before: 237000 Anhui Province, Lu'an city science and Technology Innovation Center Room 501 (the intersection of three road and Gaocheng Road) Patentee before: LIUAN SHUANGSHOU TECHNOLOGY TRANSFER SERVICE CO., LTD. |
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