CN202789331U - Megawatt direct-driven wind generating set - Google Patents
Megawatt direct-driven wind generating set Download PDFInfo
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- CN202789331U CN202789331U CN2012204823536U CN201220482353U CN202789331U CN 202789331 U CN202789331 U CN 202789331U CN 2012204823536 U CN2012204823536 U CN 2012204823536U CN 201220482353 U CN201220482353 U CN 201220482353U CN 202789331 U CN202789331 U CN 202789331U
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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
本实用新型公开了一种兆瓦级直驱型风力发电机组，包括机舱单元、风轮单元、发电机单元及塔筒单元，所述机舱单元与塔筒单元连接，所述发电机单元包括：动轴、定轴、前轴承、后轴承、转子和定子，其中：动轴通过前轴承及后轴承支撑在定轴前段外侧，转子套在动轴上并与动轴固定连接，定子套在定轴后段并与定轴固定连接，转子和定子之间留有气隙；所述发电机单元的动轴前端与风轮单元连接，定轴后端与机舱单元连接。本实用新型通过在发电机单元中，采用动轴加定轴的组合形式，动轴套于定轴外侧，并由前、后双轴承支撑，有效改善了动轴受力状态，是一种运行可靠、动轴受载更均匀、且发电机强度高的兆瓦级直驱型风力发电机组。
The utility model discloses a megawatt-level direct drive wind power generating set, which comprises a nacelle unit, a wind wheel unit, a generator unit and a tower unit, the nacelle unit is connected with the tower unit, and the generator unit includes: Moving shaft, fixed shaft, front bearing, rear bearing, rotor and stator, wherein: the moving shaft is supported on the outer side of the front section of the fixed shaft through the front bearing and the rear bearing, the rotor is sleeved on the moving shaft and fixedly connected with the moving shaft, and the stator is sleeved on the fixed shaft The rear part of the shaft is fixedly connected with the fixed shaft, and there is an air gap between the rotor and the stator; the front end of the moving shaft of the generator unit is connected with the wind wheel unit, and the rear end of the fixed shaft is connected with the nacelle unit. The utility model adopts the combined form of a moving shaft and a fixed shaft in the generator unit. The moving shaft is sleeved outside the fixed shaft and supported by front and rear double bearings, which effectively improves the force state of the moving shaft. It is a reliable megawatt-level direct-drive wind turbine with more uniform load on the moving shaft and high generator strength.
Description
Technical field
The utility model relates to technical field of wind power generation, relates to a kind of MW class wind turbine group, particularly, relates to a kind of megawatt-stage direct-drive type wind power generating set.
Background technique
Wind energy more and more is subject to countries in the world and payes attention to as a kind of clean reproducible energy.The Wind Energy In China reserves are very huge, distribution is wide general.Nearly ten years, the wind-power electricity generation of China progressively developed into the most competitive alternative energy source of conventional energy resource.
Wind-driven generator is to utilize wind energy to drive the wind wheel rotation, and wind wheel drives the magnetic line of force that produces on main shaft rotation and the cutting stator, thereby generation current generates electricity in coil winding.At present at home and abroad the wind power generating set on the market mainly is to be main by driving the generator generating after the speed-change gear box speedup, because the speed-change gear box complex structure is with high costs, and rate of fault is high, causes the wind power generating set Frequent Troubles, and it is unreliable to move.Along with the development of wind power technology, the direct-driving type wind power generation unit has appearred recent years.Direct-driving type wind-powered electricity generation unit directly drives the generating of generator shaft cutting magnetic line by wind wheel, and is connected to the grid by full power convertor, is the friendly type unit of a kind of electrical network.But because wind speed round is very low, cause the volume of direct-driving type generator very huge, this intensity to generator, manufacturability, motor radiating, maintenance and functional reliability etc. aspect has all proposed very high requirement.And mostly directly driving in the market generator is the single-bearing form, bearing is required height, and cost is higher, and main shaft (moving axis) stand under load is inhomogeneous.
The model utility content
Main purpose of the present utility model is to provide a kind of reliable, the moving axis stand under load is more even and generator intensity is high megawatt-stage direct-drive type wind power generating set.
To achieve these goals, the utility model adopts following technological scheme:
A kind of megawatt-stage direct-drive type wind power generating set, comprise cabin unit, wind wheel unit, generator unit and tower cylinder unit, described cabin unit is connected with tower cylinder unit, described generator unit comprises: moving axis, dead axle, fore bearing, rear bearing, rotor and stator, wherein: moving axis is supported on the dead axle leading portion outside by fore bearing and rear bearing, rotor is enclosed within on the moving axis and with moving axis and is fixedly connected with, and stator sleeve is fixedly connected with at the dead axle back segment and with dead axle, leaves air gap between rotor and the stator; The moving axis front end of described generator unit is connected with the wind wheel unit, and the dead axle rear end is connected with cabin unit.
Further, described stator comprises stator support, be installed in the iron core on the stator support and be fixed in winding on the iron core, and described rotor comprises rotor field spider and be installed in magnet on the rotor field spider that described magnet is multiple permanent magnet body or multistage excitation body.
Further, described dead axle comprises two sections of front dead axle and rear dead axles, and described front dead axle and rear dead axle are fastenedly connected by the bolt group.
Further, described dead axle leading portion is taper, and accordingly, described moving axis is taper.
Further, described fore bearing is roller bearing, and described rear bearing is double-row conical bearing.
Further, described generator unit also comprises brake system, and described brake system comprises and is fixed on the braking clamp on the dead axle and is fixed on brake disc on the moving axis, the corresponding setting with brake disc of described braking clamp.
Further, described generator unit also comprises constituent, and described constituent comprises the cooling pipe that is arranged between stator support and the iron core, and the water tank that is communicated with cooling pipe.
Further, described cabin unit comprises: mainframe, engine room cover, yaw system, weather station, control system, wherein: described mainframe is connected with tower cylinder unit by yaw system, and described mainframe also is connected by the interface of bolt with the dead axle rear end of generator unit; Described engine room cover is connected with tower cylinder unit, and described mainframe and set-up of control system are in engine room cover, and the weather station is connected to the engine room cover outside, and control system is connected respectively with weather station and yaw system.
Further, described wind wheel unit comprises wheel hub and is arranged on many pieces of blades on the wheel hub, and described every piece of blade is provided with independently pitch-controlled system, and described pitch-controlled system is connected with control system; And described wheel hub is connected by the interface of bolt with the moving axis front end of generator unit.
Further, also be covered with air guide sleeve in the wheel hub outside of described wind wheel unit, the engine room cover of described air guide sleeve and cabin unit links into an integrated entity.
The utility model is owing to adopt above technological scheme, and it has following beneficial effect:
1, in generator unit, adopt moving axis to add the combining form of dead axle, moving axis is placed in the dead axle outside, and is supported by forward and backward duplex bearing, has effectively improved the moving axis stress, makes stand under load more reasonable, has improved electric generator structure intensity and reliability.
2, in generator unit, adopted (multistage number of pole-pairs) multistage magnet rotor, generator can reach rated power under the slow-speed of revolution.Generator can directly link to each other with wind wheel, has therefore saved the gear-box in traditional wind power equipment, has alleviated blower fan volume and weight, has removed cost and the maintenance program of gear-box from, has reduced the unit cost.Can also reduce simultaneously noise, reduce blower fan overall failure rate, and simplify blower fan structure.
3, in generator unit, adopt the dead axle of segmentation, can solve the long problem of dead axle length.
4, in generator unit, adopt brake system, can when need to shutting down or keep in repair, blower fan can in time brake.
5, in generator unit, adopt the type of cooling of water-cooled, cooling is reliable, and efficient is high, can effectively reduce the generator operation temperature, and good heat dissipation effect guarantees that generator normally moves.
6, blower fan adopts engine room cover that integral body is sealed, and sealing is reliable, can prevent effectively that dust storm, rainwater etc. from entering, and has improved blower fan security level and blower fan reliability.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the overall structure schematic representation of the utility model megawatt-stage direct-drive type wind power generating set;
Fig. 2 is the structural representation of generator unit among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of megawatt-stage direct-drive type wind power generating set of the present utility model comprises generator unit, cabin unit, wind wheel unit and tower cylinder unit 9.
As shown in Figure 2, in above-mentioned wind power generating set, generator unit comprises: moving axis 207, dead axle, fore bearing 208, rear bearing 209, stator and rotor, and wherein: dead axle comprises 202 two sections of front dead axle 201 and rear dead axles, front dead axle 201 is fastenedly connected by the bolt group with rear dead axle 202.Stator comprises stator support 205, be installed in the iron core on the stator support 205 and be fixed in winding 203 on the iron core, and rotor comprises rotor field spider 206 and be installed in magnet 211 on the rotor field spider 206 that magnet 211 is multiple permanent magnet body or multistage excitation body.Generator unit stator is used for being connected with electrical network by full power convertor.
In above-mentioned generator unit, moving axis 207 is supported on front dead axle 201 outsides by fore bearing 208 and rear bearing 209, rotor is enclosed within on the moving axis 207 and with moving axis 207 by rotor field spider 206 and is fixedly connected with, stator is enclosed within on the rear dead axle 202 and with rear dead axle 202 by stator support 205 and is fixedly connected with, and leaves air gap between rotor and the stator.
In above-mentioned generator unit, dead axle leading portion (front dead axle 201) is taper, and accordingly, moving axis 207 is taper.
In above-mentioned generator unit, front and back bearings combination pairing pattern can make up according to the stand under load situation, and preferably, fore bearing 208 is roller bearing, and rear bearing 209 is double-row conical bearing.
In above-mentioned generator unit, also comprise protection end cap 204, protection end cap 204 is located at the iron core rear side, and protection end cap 204 is connected with rotor field spider 206 rear ends.Protection end cap 204 is for the protection of the generator unit stator part.
In above-mentioned generator unit, also comprise brake system 210, brake system 210 comprises and is fixed on the braking clamp on the dead axle and is fixed on brake disc on the moving axis 207, the corresponding setting with brake disc of braking clamp.
In above-mentioned generator unit, also comprise constituent, constituent comprises the cooling pipe 213 that is arranged between stator support 205 and the iron core, and the water tank 212 that is communicated with cooling pipe 213.
As shown in Figure 1, in above-mentioned wind power generating set, cabin unit comprises: mainframe 3, engine room cover 1, yaw system 8, weather station 2, control system 10, wherein: mainframe 3 is connected with tower cylinder unit 9 by yaw system 8, and mainframe 3 also connecing of the dead axle rear end by bolt and generator unit 215 be connected (as shown in Figure 2); Engine room cover 1 is connected with tower cylinder unit 9, and mainframe 3 and control system 10 are arranged in the engine room cover 1, and weather station 2 is connected to engine room cover 1 outside, and control system 10 is connected respectively with weather station 2 and yaw system 8.3 pairs of units of mainframe are played a supporting role.Yaw system 8 can drive cabin box haul deflection by driftage bearing and yaw motor.But weather station 2 measuring wind wind directions, and signal passed to control system 10, control system 10 can be controlled yaw system 8 according to meteorologic signal.
As shown in Figure 1, in above-mentioned wind power generating set, the wind wheel unit comprises wheel hub 5 and is arranged on many pieces of blades 4 on the wheel hub 5, and every piece of blade 4 is provided with independently pitch-controlled system 6, and pitch-controlled system 6 is connected with control system 10; And connecing of moving axis 207 front ends of wheel hub 5 by bolt and generator unit 214 is connected (as shown in Figure 2).Wherein, pitch-controlled system 6 is controlled power of fan by control blade slurry elongation.
As shown in Figure 1, also be covered with air guide sleeve 7 in wheel hub 5 outsides of wind wheel unit, air guide sleeve 7 links into an integrated entity with the engine room cover 1 of cabin unit.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technological scheme that previous embodiment is put down in writing, and perhaps part technical characteristics wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a megawatt-stage direct-drive type wind power generating set comprises cabin unit, wind wheel unit, generator unit and tower cylinder unit, and described cabin unit is connected with tower cylinder unit, it is characterized in that:
Described generator unit comprises: moving axis, dead axle, fore bearing, rear bearing, rotor and stator, wherein: moving axis is supported on the dead axle leading portion outside by fore bearing and rear bearing, rotor is enclosed within on the moving axis and with moving axis and is fixedly connected with, stator sleeve is fixedly connected with at the dead axle back segment and with dead axle, leaves air gap between rotor and the stator;
The moving axis front end of described generator unit is connected with the wind wheel unit, and the dead axle rear end is connected with cabin unit.
2. megawatt-stage direct-drive type wind power generating set according to claim 1, it is characterized in that, described stator comprises stator support, be installed in the iron core on the stator support and be fixed in winding on the iron core, described rotor comprises rotor field spider and is installed in magnet on the rotor field spider that described magnet is multiple permanent magnet body or multistage excitation body.
3. megawatt-stage direct-drive type wind power generating set according to claim 1 is characterized in that, described dead axle comprises two sections of front dead axle and rear dead axles, and described front dead axle and rear dead axle are fastenedly connected by the bolt group.
4. megawatt-stage direct-drive type wind power generating set according to claim 1 is characterized in that, described dead axle leading portion is taper, and accordingly, described moving axis is taper.
5. megawatt-stage direct-drive type wind power generating set according to claim 1 is characterized in that, described fore bearing is roller bearing, and described rear bearing is double-row conical bearing.
6. megawatt-stage direct-drive type wind power generating set according to claim 1, it is characterized in that, described generator unit also comprises brake system, and described brake system comprises and is fixed on the braking clamp on the dead axle and is fixed on brake disc on the moving axis, the corresponding setting with brake disc of described braking clamp.
7. megawatt-stage direct-drive type wind power generating set according to claim 2, it is characterized in that, described generator unit also comprises constituent, and described constituent comprises the cooling pipe that is arranged between stator support and the iron core, and the water tank that is communicated with cooling pipe.
8. each described megawatt-stage direct-drive type wind power generating set according to claim 1-7 is characterized in that described cabin unit comprises: mainframe, engine room cover, yaw system, weather station, control system, wherein:
Described mainframe is connected with tower cylinder unit by yaw system, and described mainframe also is connected by the interface of bolt with the dead axle rear end of generator unit;
Described engine room cover is connected with tower cylinder unit, and described mainframe and set-up of control system are in engine room cover, and the weather station is connected to the engine room cover outside, and control system is connected respectively with weather station and yaw system.
9. megawatt-stage direct-drive type wind power generating set according to claim 8, it is characterized in that, described wind wheel unit comprises wheel hub and is arranged on many pieces of blades on the wheel hub, and described every piece of blade is provided with independently pitch-controlled system, and described pitch-controlled system is connected with control system;
And described wheel hub is connected by the interface of bolt with the moving axis front end of generator unit.
10. megawatt-stage direct-drive type wind power generating set according to claim 9 is characterized in that, also is covered with air guide sleeve in the wheel hub outside of described wind wheel unit, and the engine room cover of described air guide sleeve and cabin unit links into an integrated entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204823536U CN202789331U (en) | 2012-09-19 | 2012-09-19 | Megawatt direct-driven wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204823536U CN202789331U (en) | 2012-09-19 | 2012-09-19 | Megawatt direct-driven wind generating set |
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| Publication Number | Publication Date |
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| CN202789331U true CN202789331U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012204823536U Expired - Fee Related CN202789331U (en) | 2012-09-19 | 2012-09-19 | Megawatt direct-driven wind generating set |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989601A (en) * | 2015-07-27 | 2015-10-21 | 北京三力新能科技有限公司 | Main bearing assembly of wind generating set |
| CN105298754A (en) * | 2015-11-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN106150918A (en) * | 2016-08-26 | 2016-11-23 | 刘泉 | A kind of direct-drive aerogenerator group |
| CN106321364A (en) * | 2016-11-08 | 2017-01-11 | 常州神力电机股份有限公司 | Wind driven generation unit with hub and generator outer rotor combined structure |
| CN106438206A (en) * | 2016-11-08 | 2017-02-22 | 常州神力电机股份有限公司 | Parallel type direct-driven wind power generator with hub and power generator outer rotor combined |
| CN106640531A (en) * | 2016-11-24 | 2017-05-10 | 重集团大连设计研究院有限公司 | Megawatt-grade draught fan with direct drive structure |
| CN108386318A (en) * | 2018-04-28 | 2018-08-10 | 新疆金风科技股份有限公司 | Wind power generating set |
| CN109469582A (en) * | 2017-09-07 | 2019-03-15 | 新疆金风科技股份有限公司 | Wind turbine pitch drive mechanism, pitch method and wind turbine |
| CN109469591A (en) * | 2017-09-07 | 2019-03-15 | 新疆金风科技股份有限公司 | Wind turbine transmission mechanism, transmission method and wind turbine |
| CN109787386A (en) * | 2019-03-05 | 2019-05-21 | 石河子大学 | An air-liquid double-cooled permanent magnet wind generator |
| CN110195685A (en) * | 2019-05-27 | 2019-09-03 | 上海电气风电集团有限公司 | Brake system and outer rotor type direct drive wind power generating set |
| WO2022021535A1 (en) * | 2020-07-31 | 2022-02-03 | 新疆金风科技股份有限公司 | Supporting device of shafting bearing, and wind generating set |
| CN119393285A (en) * | 2025-01-02 | 2025-02-07 | 东方电气集团东方电机有限公司 | Main shaft system of wind driven generator |
-
2012
- 2012-09-19 CN CN2012204823536U patent/CN202789331U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989601A (en) * | 2015-07-27 | 2015-10-21 | 北京三力新能科技有限公司 | Main bearing assembly of wind generating set |
| CN105298754A (en) * | 2015-11-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN105298754B (en) * | 2015-11-13 | 2019-02-15 | 北京金风科创风电设备有限公司 | Wind turbines and wind turbines |
| CN106150918A (en) * | 2016-08-26 | 2016-11-23 | 刘泉 | A kind of direct-drive aerogenerator group |
| CN106150918B (en) * | 2016-08-26 | 2021-11-02 | 刘泉 | Direct-drive wind generating set |
| CN106321364A (en) * | 2016-11-08 | 2017-01-11 | 常州神力电机股份有限公司 | Wind driven generation unit with hub and generator outer rotor combined structure |
| CN106438206A (en) * | 2016-11-08 | 2017-02-22 | 常州神力电机股份有限公司 | Parallel type direct-driven wind power generator with hub and power generator outer rotor combined |
| CN106640531A (en) * | 2016-11-24 | 2017-05-10 | 重集团大连设计研究院有限公司 | Megawatt-grade draught fan with direct drive structure |
| CN109469582A (en) * | 2017-09-07 | 2019-03-15 | 新疆金风科技股份有限公司 | Wind turbine pitch drive mechanism, pitch method and wind turbine |
| CN109469591A (en) * | 2017-09-07 | 2019-03-15 | 新疆金风科技股份有限公司 | Wind turbine transmission mechanism, transmission method and wind turbine |
| CN109469591B (en) * | 2017-09-07 | 2020-05-19 | 新疆金风科技股份有限公司 | Wind turbine transmission mechanism, transmission method and wind turbine |
| CN108386318A (en) * | 2018-04-28 | 2018-08-10 | 新疆金风科技股份有限公司 | Wind power generating set |
| CN108386318B (en) * | 2018-04-28 | 2024-02-06 | 金风科技股份有限公司 | Wind Turbine |
| CN109787386A (en) * | 2019-03-05 | 2019-05-21 | 石河子大学 | An air-liquid double-cooled permanent magnet wind generator |
| CN110195685A (en) * | 2019-05-27 | 2019-09-03 | 上海电气风电集团有限公司 | Brake system and outer rotor type direct drive wind power generating set |
| WO2022021535A1 (en) * | 2020-07-31 | 2022-02-03 | 新疆金风科技股份有限公司 | Supporting device of shafting bearing, and wind generating set |
| CN119393285A (en) * | 2025-01-02 | 2025-02-07 | 东方电气集团东方电机有限公司 | Main shaft system of wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WEIHAI YINHE CHANGZHENG WIND POWER GENERATING EQUI Effective date: 20130425 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130425 Address after: 536000 building, information center building, Yinhe Software Park, Tibet Road, the Guangxi Zhuang Autonomous Region, Beihai, four Patentee after: Guangxi Galaxy Wind Power Generation Co.,Ltd. Patentee after: WEIHAI YINHE CHANGZHENG WIND POWER EQUIPMENT CO., LTD. Address before: 536000 building, information center building, Yinhe Software Park, Tibet Road, the Guangxi Zhuang Autonomous Region, Beihai, four Patentee before: Guangxi Galaxy Wind Power Generation Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |