CN103899484A - Brake device and method of wind turbine generator - Google Patents
Brake device and method of wind turbine generator Download PDFInfo
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- CN103899484A CN103899484A CN201410155484.7A CN201410155484A CN103899484A CN 103899484 A CN103899484 A CN 103899484A CN 201410155484 A CN201410155484 A CN 201410155484A CN 103899484 A CN103899484 A CN 103899484A
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- wind
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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
Abstract
The invention provides a brake device and method of a wind turbine generator. The brake device comprises an auxiliary device, a pressed handle and a brake lining, wherein the auxiliary device is arranged at the outer side of a bearing of the wind turbine generator and provided with a plurality of symmetrically distributed symmetrical air intervals, an inner slideway is arranged between the auxiliary device and the bearing, an outer slideway is arranged at the outer side of the auxiliary device, the pressed handle is arranged in one symmetrical air interval, is provided with a pressure connecting rod and enters the inner slideway or the outer slideway under the action of the pressure connecting rod, the brake lining is arranged on the pressed handle in a penetrating mode and is connected with a spring, and the other end of the spring is connected with a fixing device of the wind turbine generator. The flexible brake device and method resolve the existing brake problem generated when the wind turbine generator is in an emergency in the operating process, can achieve flexible braking of the wind turbine generator and prevent a fan shaft from being broken.
Description
Technical field
The present invention relates to wind power generation field, and be particularly related to a kind of wind-powered electricity generation unit braking device and brake method.
Background technique
Wind energy, as a kind of clean renewable energy sources, is more and more subject to the attention of countries in the world.Its amount of accumulateing is huge, and the wind energy in the whole world is about 2.74 × 10
9mW, wherein available wind energy is 2 × 10
7mW, than also large 10 times of the water energy total amounts that can develop on the earth.
THE WIND ENERGY RESOURCES IN CHINA is abundant, the wind energy content that can develop approximately 1,000,000,000 kW, wherein, land wind energy content approximately 2.53 hundred million kW(land liftoff 10m height material computations), wind energy content approximately 7.5 hundred million kW that sea can development and utilization, amount to 1,000,000,000 kW.And 2003 end of the year whole nations electric power approximately 5.67 hundred million kW that install.
Wind is one of energy not having public hazards.And it is inexhaustible.For lack of water, short bunker and ungetable offshore islands, pastoral area, grassland, mountain area and area, plateau, the wind-power electricity generation of suiting measures to local conditions to utilize, very applicable, be well worth doing.Wind-power electricity generation forms one upsurge just in the world, because wind-power electricity generation does not need to use fuel, also can not produce radiation or atmospheric pollution.
The kinetic energy of keeping watch is transformed into mechanical kinetic energy, then mechanical energy is converted into electric power kinetic energy, Here it is wind-power electricity generation.The principle of wind-power electricity generation, is to utilize wind-force to drive air vane rotation, then sees through booster engine by the speed lifting of rotation, impels generator generating.According to current windmill technology, be approximately the gentle breeze speed (degree of gentle breeze) of three meters per second, just can start generating.The needed device of wind-power electricity generation, is called wind-powered electricity generation unit.
Along with the utilization of wind-powered electricity generation new energy is more and more extensive, also more and more higher to the requirement of wind-powered electricity generation unit, protect also more and more stricter.Especially in the time there is the severe operating conditionss such as storm, just need wind-powered electricity generation unit emergency shutdown, in the time that paddle change system of wind turbines can not normally become oar, carry out Emergency braking with regard to the brake system that needs wind-powered electricity generation unit.Present brake system is all rigid brake substantially, only depends on friction to consume the kinetic energy of blower fan.And this is more dangerous, be easy to cause the situations such as the fracture of fan shaft.
Summary of the invention
The present invention proposes a kind of wind-powered electricity generation unit braking device and brake method, its object is to solve in current running of wind generating set brake problem in case of emergency, all brake system are all rigid brakes at present, be easy to cause the situations such as fan shaft fracture, the present invention proposes flexible braking device and method, to realize the gentleness brake of wind-powered electricity generation unit.
In order to achieve the above object, the present invention proposes a kind of wind-powered electricity generation unit braking device, comprising:
Auxiliary device, is arranged at described wind-powered electricity generation unit bearing outside, and described auxiliary device is provided with multiple symmetrical symmetrical air gaps, between described auxiliary device and described bearing, is provided with inner slide, and described auxiliary device arranged outside has external slideway;
Be subject to pressure handle, be arranged in described one of them symmetrical air gap, described in be subject to be provided with on pressure handle pressure connecting rod, described in be subject to pressure handle to enter described inner slide or external slideway under the effect of described pressure connecting rod;
Brake tile, is subject on pressure handle described in being arranged in, and wherein, on described brake tile, is connected with spring, and the described spring the other end is connected in the fixing device of described wind-powered electricity generation unit.
The quantity of the symmetrical air gap further, arranging on described auxiliary device is 4.
Further, described pressure connecting rod is positioned at being subject on pressure handle of described brake tile one side.
Further, described pressure connecting rod is positioned at being subject on pressure handle of described brake tile both sides.
In order to achieve the above object, the present invention also proposes a kind of wind-powered electricity generation unit brake method, comprises the following steps:
In the time that wind-powered electricity generation unit normally moves, described braking device is failure to actuate, described in be subject in the symmetrical air gap of pressure handle in auxiliary device;
In the time that described braking device carries out brake operation, described pressure connecting rod is exerted pressure to the described pressure handle that is subject to, describedly declined by pressure handle to enter and be subject to pressure handle inner slide, make described brake tile with bearing close contact, described spring is elongated under bearing rotates, shaft strength strengthens, thereby reduces wind-powered electricity generation generating unit speed;
Before entering into next symmetrical air gap, the power on described pressure connecting rod is cancelled, and pressure connecting rod rises, and entered by pressure handle and is subject to pressure handle inner slide, and then enter and be subject to pressure handle external slideway, under the effect of spring force, gets back to auxiliary device air gap position;
Follow described pressure connecting rod again to exerted pressure by pressure handle, brake tile is pressed down again, enters next deceleration bout, and after the deceleration bout along with one or many, the rotating speed of wind-powered electricity generation unit is more and more slower, until wind-powered electricity generation generating unit speed reduces to 0, brake process finishes.
Wind-powered electricity generation unit braking device and brake method that the present invention proposes, adopt pressure connecting rod to exert pressure and be subject to pressure handle, the flexible braking system that brake tile and spring coordinate, the multiple deceleration bouts that utilize braking device repeatedly to pass in and out symmetrical air gap reduce wind-powered electricity generation generating unit speed, solve brake problem in case of emergency in current running of wind generating set, all brake system are all rigid brakes at present, be easy to cause the situations such as fan shaft fracture, the present invention proposes flexible braking device and method, to realize the gentleness brake of wind-powered electricity generation unit.
Accompanying drawing explanation
Figure 1 shows that the wind-powered electricity generation unit brake device structure schematic diagram of preferred embodiment of the present invention.
Figure 2 shows that the auxiliary device side view of preferred embodiment of the present invention.
Embodiment
Provide the specific embodiment of the present invention below in conjunction with accompanying drawing, but the invention is not restricted to following mode of execution.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only for convenient, the object of the aid illustration embodiment of the present invention lucidly.
Please refer to Fig. 1 and Fig. 2, Figure 1 shows that the wind-powered electricity generation unit brake device structure schematic diagram of preferred embodiment of the present invention, Figure 2 shows that the auxiliary device side view of preferred embodiment of the present invention.The present invention proposes a kind of wind-powered electricity generation unit braking device, comprise: auxiliary device 200, be arranged at described wind-powered electricity generation unit bearing 100 outsides, described auxiliary device 200 is provided with multiple symmetrical symmetrical air gaps 210, between described auxiliary device 200 and described bearing 100, be provided with inner slide 220, described auxiliary device 200 arranged outside have external slideway 230; Be subject to pressure handle 300, be arranged in described one of them symmetrical air gap 210, described in be subject to be provided with on pressure handle 300 pressure connecting rod 400, described in be subject to pressure handle 300 to enter described inner slide 220 or external slideway 230 under described pressure connecting rod 400 effects; Brake tile 500, is subject to described in being arranged on pressure handle 300, wherein, on described brake tile 500, is connected with spring 600, and described spring 600 the other ends are connected in the fixing device of described wind-powered electricity generation unit.
The preferred embodiment according to the present invention, the quantity of the symmetrical air gap 210 arranging on described auxiliary device 200 is 4, not necessarily four of the symmetrical air gaps 210 in auxiliary device 200, but must be symmetrical.Described pressure connecting rod 400 is positioned at being subject on pressure handle 300 of described brake tile 500 1 sides, another preferred embodiment according to the present invention, and described pressure connecting rod 400 also can be arranged at being subject on pressure handle 300 of described brake tile 500 both sides simultaneously.Each group wind-powered electricity generation unit braking device all comprises spring 600, brake tile 500, pressure connecting rod 400, is subject to pressure handle 300, auxiliary device 200 etc.Wind-powered electricity generation unit can have one group or organize braking device more, preferably will be arranged symmetrically with, and improves braking efficiency.
The present invention also proposes a kind of wind-powered electricity generation unit brake method, comprises the following steps:
In the time that wind-powered electricity generation unit normally moves, described braking device is failure to actuate, described in be subject in the symmetrical air gap 210 of pressure handle 300 in auxiliary device 200;
In the time that described braking device carries out brake operation, brake system provides instruction, described pressure connecting rod 400 is exerted pressure to the described pressure handle 300 that is subject to, describedly be subject to pressure handle 300 to decline to entering to be subject to pressure handle inner slide 220, make described brake tile 500 with bearing 100 close contacts, described spring 600 is elongated under bearing 100 rotates, the stressed increasing of bearing 100, thereby reduce wind-powered electricity generation generating unit speed, spring 600 one end are fixed on blower fan, the other end is connected on brake tile 500, so the size of frictional force just equals the spring force of spring 600, and spring 600 is along with the rotation of fan shaft 100 is elongated gradually, spring force is also along with increasing gradually, the rotating speed of blower fan will be more and more slower,
Before entering into next symmetrical air gap 210, power on described pressure connecting rod 400 is cancelled, pressure connecting rod 400 rises, entered by pressure handle 300 and be subject to pressure handle inner slide 220, and then enter and be subject to pressure handle external slideway 230, under the effect of spring force, get back to air gap 210 positions of auxiliary device 200;
Follow described pressure connecting rod 400 again to exerted pressure by pressure handle 300, brake tile 500 is pressed down again, enters next deceleration bout, after deceleration bout along with one or many, the rotating speed of wind-powered electricity generation unit is more and more slower, until wind-powered electricity generation generating unit speed reduces to 0, brake process finishes.
In sum, wind-powered electricity generation unit braking device and brake method that the present invention proposes, adopt pressure connecting rod to exert pressure and be subject to pressure handle, the flexible braking system that brake tile and spring coordinate, the multiple deceleration bouts that utilize braking device repeatedly to pass in and out symmetrical air gap reduce wind-powered electricity generation generating unit speed, solve brake problem in case of emergency in current running of wind generating set, all brake system are all rigid brakes at present, be easy to cause the situations such as fan shaft fracture, the present invention proposes flexible braking device and method, to realize the gentleness brake of wind-powered electricity generation unit.
Although the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on claims person of defining.
Claims (5)
1. a wind-powered electricity generation unit braking device, is characterized in that, comprising:
Auxiliary device, is arranged at described wind-powered electricity generation unit bearing outside, and described auxiliary device is provided with multiple symmetrical symmetrical air gaps, between described auxiliary device and described bearing, is provided with inner slide, and described auxiliary device arranged outside has external slideway;
Be subject to pressure handle, be arranged in described one of them symmetrical air gap, described in be subject to be provided with on pressure handle pressure connecting rod, described in be subject to pressure handle to enter described inner slide or external slideway under the effect of described pressure connecting rod;
Brake tile, is subject on pressure handle described in being arranged in, and wherein, on described brake tile, is connected with spring, and the described spring the other end is connected in the fixing device of described wind-powered electricity generation unit.
2. wind-powered electricity generation unit braking device according to claim 1, is characterized in that, the quantity of the symmetrical air gap arranging on described auxiliary device is 4.
3. wind-powered electricity generation unit braking device according to claim 1, is characterized in that, described pressure connecting rod is positioned at being subject on pressure handle of described brake tile one side.
4. wind-powered electricity generation unit braking device according to claim 1, is characterized in that, described pressure connecting rod is positioned at being subject on pressure handle of described brake tile both sides.
5. right to use requires a brake method for the wind-powered electricity generation unit braking device described in 1, it is characterized in that, comprises the following steps:
In the time that wind-powered electricity generation unit normally moves, described braking device is failure to actuate, described in be subject in the symmetrical air gap of pressure handle in auxiliary device;
In the time that described braking device carries out brake operation, described pressure connecting rod is exerted pressure to the described pressure handle that is subject to, describedly declined by pressure handle to enter and be subject to pressure handle inner slide, make described brake tile with bearing close contact, described spring is elongated under bearing rotates, shaft strength strengthens, thereby reduces wind-powered electricity generation generating unit speed;
Before entering into next symmetrical air gap, the power on described pressure connecting rod is cancelled, and pressure connecting rod rises, and entered by pressure handle and is subject to pressure handle inner slide, and then enter and be subject to pressure handle external slideway, under the effect of spring force, gets back to auxiliary device air gap position;
Follow described pressure connecting rod again to exerted pressure by pressure handle, brake tile is pressed down again, enters next deceleration bout, and after the deceleration bout along with one or many, the rotating speed of wind-powered electricity generation unit is more and more slower, until wind-powered electricity generation generating unit speed reduces to 0, brake process finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155484.7A CN103899484B (en) | 2014-04-17 | 2014-04-17 | A kind of Wind turbines brake gear and brake method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155484.7A CN103899484B (en) | 2014-04-17 | 2014-04-17 | A kind of Wind turbines brake gear and brake method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899484A true CN103899484A (en) | 2014-07-02 |
| CN103899484B CN103899484B (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410155484.7A Expired - Fee Related CN103899484B (en) | 2014-04-17 | 2014-04-17 | A kind of Wind turbines brake gear and brake method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869635A (en) * | 2019-11-29 | 2021-06-01 | 燕成祥 | Cleaning robot with fan brake device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401705Y (en) * | 1999-09-16 | 2000-10-18 | 康继航 | Pitch variable speed regulator for wind electricity generator |
| CN101660503A (en) * | 2008-08-29 | 2010-03-03 | 江苏苏亚机电制造有限公司 | Flexible braking system of wind generating set |
| DE102009026131B3 (en) * | 2009-07-07 | 2011-02-10 | Emb Systems Ag | Braking assembly of wind turbine power plant, includes guide component fitting into recess such that floating brake yoke slides upon it |
| EP1959131B1 (en) * | 2007-01-10 | 2012-07-11 | Nordex Energy GmbH | Wind turbine with a hydraulically actuated rotor brake |
| CN203835623U (en) * | 2014-04-17 | 2014-09-17 | 上海电机学院 | Wind turbine braking device |
-
2014
- 2014-04-17 CN CN201410155484.7A patent/CN103899484B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401705Y (en) * | 1999-09-16 | 2000-10-18 | 康继航 | Pitch variable speed regulator for wind electricity generator |
| EP1959131B1 (en) * | 2007-01-10 | 2012-07-11 | Nordex Energy GmbH | Wind turbine with a hydraulically actuated rotor brake |
| CN101660503A (en) * | 2008-08-29 | 2010-03-03 | 江苏苏亚机电制造有限公司 | Flexible braking system of wind generating set |
| DE102009026131B3 (en) * | 2009-07-07 | 2011-02-10 | Emb Systems Ag | Braking assembly of wind turbine power plant, includes guide component fitting into recess such that floating brake yoke slides upon it |
| CN203835623U (en) * | 2014-04-17 | 2014-09-17 | 上海电机学院 | Wind turbine braking device |
Non-Patent Citations (1)
| Title |
|---|
| 徐晓光: "风力发电机组刹车系统关键技术研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》, 15 September 2012 (2012-09-15), pages 042 - 27 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869635A (en) * | 2019-11-29 | 2021-06-01 | 燕成祥 | Cleaning robot with fan brake device |
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| CN103899484B (en) | 2017-03-08 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Inventor after: Li Yixin Inventor after: Zhang Yanchi Inventor before: Li Yixin |
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| COR | Change of bibliographic data | ||
| 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: 20170308 Termination date: 20200417 |