CN101197518A - Aerogenerator with movable stator - Google Patents
Aerogenerator with movable stator Download PDFInfo
- Publication number
- CN101197518A CN101197518A CNA2007101916918A CN200710191691A CN101197518A CN 101197518 A CN101197518 A CN 101197518A CN A2007101916918 A CNA2007101916918 A CN A2007101916918A CN 200710191691 A CN200710191691 A CN 200710191691A CN 101197518 A CN101197518 A CN 101197518A
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- wind
- generator
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- slide plate
- wind speed
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- 230000001105 regulatory effect Effects 0.000 abstract description 8
- 238000004804 winding Methods 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention discloses a wind turbine generator with movable stator, and belongs to wind turbine generator. The invention comprises a bench (1), a wind wheel (2), a low speed axle (3), a gear box (4), a high speed axle(5), a generator rotor (6), a generator stator (7), a slide rail (8), a slide vane (9), a connecting rod (10), a slide vane regulator (11) and a wind speed sensor (12). The generator stator and the slide vane are fixed, with position in the slide rail regulated by the slide vane regulator according to the wind speed signals detected by the wind speed sensor. Part of the stator winding coils participate the rotary cutting of the generator rotor when the wind speed is normal; when wind speed increases to the high wind speed condition, the position of the generator stator is regulated through the connecting rod and the slide vane by the slide vane regulator to increase the number of stator winding coils which participate the rotary cutting of the generator rotor, and thereby increasing generation power, and maintaining a low level of the wind wheel rotation speed. The invention has the advantages of high utilization efficiency of wind energy, excellent regulation capacity and good security.
Description
Technical field
The present invention relates to a kind of wind-driven generator of movable stator, belong to technical field of wind power generator.
Background technology
As wind power generation the most ripe in the renewable energy technologies, for reply a large amount of use that traditional fossil fuel energy brought compel natural environment, social crisis at the tip of the brow, be a practicable solution.In worldwide, wind power generation is also developing just rapidly constantly, in in the past more than 20 year, the separate unit maximum power of wind-driven generator is by original tens kilowatts of by now 2500 kilowatts, just the target towards 5000 kilowatts in unit strides forward, adopt the wind energy turbine set power of many set grid-connection generatings can reach hundreds thousand of kilowatts, become the important component part in the energy supply chain, and no longer be the dispensable additional energy.China is vast in territory, and wind energy resources is very abundant, and along with continuous progress in science and technology, the economy of wind power generation is constantly improved, in addition China the important component part of regenerative resource as China's energy strategy, wind power generation has enormous and latent market.
Coastal waters and highlands be because throughout the year wind-force is big, can utilize more than the wind power generation hour, becomes to reach the main region that following wind energy turbine set is built from now on.In order to be implemented in the efficient operation of wind-driven generator under the high wind speed environment, need the necessary adjusting measure of configuration in wind powered generator system, to guarantee that generator can utilize wind power generation to greatest extent.Usually adopt the method for variable pitch to realize that wind power generation power with the adjusting that wind speed changes, has obtained higher Wind Power Utilization efficient at present.Yet the ubiquitous problem of said method is a complex structure, regulating power is limited, add the restriction of factors such as being subjected to material, manufacturing technology and control method, the generator blade will have to carry out stall-adjusted under the high wind speed environment, even generator quits work, this has just wasted a large amount of efficient wind energies.Very be necessary to develop the Wind Power Utilization technology that wind speed is wide, efficient is high that is suitable for for this reason.
Summary of the invention
Purpose of the present invention is intended at above-mentioned the deficiencies in the prior art, provides and is suitable for that wind speed is wide, regulating power is strong, safe, can be under the high wind speed condition wind-driven generator of the movable stator of efficiency operation.
It comprises stand, wind wheel, slow-speed shaft, gear box, high speed shaft, generator amature, generator unit stator, the cabin lid, wherein wind wheel is connected in the input of slow-speed shaft, the output of slow-speed shaft is connected in the input that is fixed on the gear box on the stand, the output of gear box is connected in the input of high speed shaft, the output of high speed shaft is connected in generator amature, generator amature places in the generator unit stator, the cabin lid places on the stand, with gear box, generator amature, generator unit stator covers, it is characterized in that, also comprise slide rail, slide plate, connecting rod, the slide plate adjuster, wind speed sensing instrument, wherein slide rail places on the stand, the slide plate that is used for the regulator generator position of stator that is fixed on the generator unit stator places slide rail, slide plate is connected in the output of slide plate adjuster by connecting rod, and the input of slide plate adjuster links to each other with wind speed sensing instrument, and the slide plate adjuster is fixed on and places on the stand in the lid of cabin.
Operation principle of the present invention is, generator unit stator and slide plate are fixed, and the position in slide rail is regulated according to the wind velocity signal that wind speed sensing instrument records by the slide plate adjuster.Under normal wind speed, slide plate is in a certain position of slide rail, and the partial stator winding coil participates in the rotation cutting of generator amature; When wind speed increases to the high wind speed condition; wind speed sensing instrument conveys to the slide plate adjuster with signal; the slide plate adjuster is by connecting rod and slide plate regulator generator position of stator; the stator winding coil number that participates in generator amature rotation cutting is increased; thereby increase generated output; and the brake torque increase that stator field and rotor field interaction are produced, make wind speed round maintain reduced levels, protection wind wheel trouble free service.
Compare with the traditional wind of present employing, have outstanding advantages such as Wind Power Utilization efficient height, regulating power is strong, fail safe is good, can satisfy the requirement of wind-driven generator efficiency operation under the high wind speed condition, wind energy is changed into electric energy as much as possible, thereby the increase energy output has improved wind power generation efficient.
Description of drawings
Fig. 1 is the wind-driven generator schematic diagram of movable stator.
Label title among Fig. 1: 1, stand, 2, wind wheel, 3, slow-speed shaft, 4, gear box, 5, high speed shaft, 6, generator amature, 7, generator unit stator, 8, slide rail, 9, slide plate, 10, connecting rod, 11, the slide plate adjuster, 12, wind speed sensing instrument, 13, the cabin lid
Embodiment
According to shown in Figure 1, the wind-driven generator of movable stator of the present invention, comprise stand 1, wind wheel 2, slow-speed shaft 3, gear box 4, high speed shaft 5, generator amature 6, generator unit stator 7, cabin lid 13, wherein wind wheel 2 is connected in the input of slow-speed shaft 3, the output of slow-speed shaft 3 is connected in the input of the gear box 4 that is fixed on the stand 1, the output of gear box 4 is connected in the input of high speed shaft 5, the output of high speed shaft 5 is connected in generator amature 6, generator amature 6 places in the generator unit stator 7, cabin lid 13 places on the stand 1, with gear box, generator amature, generator unit stator covers, it is characterized in that, also comprise slide rail 8, slide plate 9, connecting rod 10, slide plate adjuster 11, wind speed sensing instrument 12, wherein slide rail 8 places on the stand 1, the slide plate 9 that is used for regulator generator stator 7 positions that is fixed on the generator unit stator 7 places slide rail 8, slide plate 9 is connected in the output of slide plate adjuster 11 by connecting rod 10, the input of slide plate adjuster 11 links to each other with wind speed sensing instrument 12, and slide plate adjuster 11 is fixed on and places on the stand 1 in the cabin lid 13.
During wind-driven generator work, wind wheel rotates under wind drive, and its rotating speed reaches gear box by slow-speed shaft and carries out speedup, and the high speed shaft of process speedup connects with generator amature, drives rotor high-speed rotation and cutting magnetic line and produces energy of position.Because the wind wheel blade length is up to tens meters, the linear velocity of blade outer rim is very big, too high rotating speed not only can cause the mechanical energy loss that is converted by wind energy in a large number, cause that generating efficiency reduces greatly, simultaneously also can bring out a large amount of additional stresses, bring potential threat for the blade security of operation, based on the reason of efficient and safety, work in the scope that the rotating speed of wind wheel should be certain.For the high wind speed environment, in order to guarantee the safety of equipment, traditional wind-driven generator carries out stall-adjusted usually, thereby has wasted a large amount of efficient wind energies.Can efficiency operation when the high wind speed in order to ensure wind-driven generator, with more wind energy transformation is electric energy, can establish slide rail on wind power generation machine frame upper berth, and slide plate is set on slide rail, slide plate and generator unit stator are fixed, link to each other with the slide plate adjuster by connecting rod, generator unit stator and the slide plate position in slide rail is regulated according to the wind velocity signal that wind speed sensing instrument records by the slide plate adjuster.Under normal wind speed, slide plate is in a certain position of slide rail, and the partial stator winding coil participates in the rotation cutting of generator amature; When wind speed increases to the high wind speed condition; wind speed sensing instrument conveys to the slide plate adjuster with signal; the slide plate adjuster is by connecting rod and slide plate regulator generator position of stator; the stator winding coil number that participates in generator amature rotation cutting is increased; thereby increase generated output; and the brake torque increase that stator field and rotor field interaction are produced, make wind wheel maintain lower rotating speed, protection wind wheel trouble free service.
Compare with the traditional wind of present employing, although the wind-driven generator of movable stator has increased the slide plate adjuster With the expense of slide rail, and the required energy consumption of working, but it have the wind energy utilization efficiency height, regulating power is strong, security good Deng outstanding advantages, can satisfy the requirement of wind-driven generator efficiency operation under the high wind speed condition, wind energy is turned to as much as possible Change into electric energy, improved wind power generation efficiency.
Claims (1)
1. the wind-driven generator of a movable stator, comprise stand (1), wind wheel (2), slow-speed shaft (3), gear box (4), high speed shaft (5), generator amature (6), generator unit stator (7), cabin lid (13), wherein wind wheel (2) is connected in the input of slow-speed shaft (3), the output of slow-speed shaft (3) is connected in the input of the gear box (4) that is fixed on the stand (1), the output of gear box (4) is connected in the input of high speed shaft (5), the output of high speed shaft (5) is connected in generator amature (6), generator amature (6) places in the generator unit stator (7), cabin lid (13) places on the stand (1), with gear box (4), generator amature (6), generator unit stator (7) covers, it is characterized in that, also comprise slide rail (8), slide plate (9), connecting rod (10), slide plate adjuster (11), wind speed sensing instrument (12), wherein slide rail (8) places on the stand (1), the slide plate (9) that is used for regulator generator stator (7) position that is fixed on the generator unit stator (7) places slide rail (8), slide plate (9) is connected in the output of slide plate adjuster (11) by connecting rod (10), the input of slide plate adjuster (11) links to each other with wind speed sensing instrument (12), and slide plate adjuster (11) is fixed on and places on the stand (1) in the cabin lid (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101916918A CN101197518A (en) | 2007-12-14 | 2007-12-14 | Aerogenerator with movable stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101916918A CN101197518A (en) | 2007-12-14 | 2007-12-14 | Aerogenerator with movable stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101197518A true CN101197518A (en) | 2008-06-11 |
Family
ID=39547725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101916918A Pending CN101197518A (en) | 2007-12-14 | 2007-12-14 | Aerogenerator with movable stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101197518A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103430429A (en) * | 2011-01-05 | 2013-12-04 | 维斯塔斯风力系统有限公司 | Wind turbine generator with movable stator subunits |
| CN103441584A (en) * | 2013-08-06 | 2013-12-11 | 沈阳理工大学 | Three-phase asynchronous motor with movable stator |
-
2007
- 2007-12-14 CN CNA2007101916918A patent/CN101197518A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103430429A (en) * | 2011-01-05 | 2013-12-04 | 维斯塔斯风力系统有限公司 | Wind turbine generator with movable stator subunits |
| CN103430429B (en) * | 2011-01-05 | 2016-03-30 | 维斯塔斯风力系统有限公司 | There is the wind wheel generator of movable stator subelement |
| CN103441584A (en) * | 2013-08-06 | 2013-12-11 | 沈阳理工大学 | Three-phase asynchronous motor with movable stator |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080611 |