CN201486773U - Megawatt direct-drive inner-rotor permanent magnet wind turbine generator system - Google Patents
Megawatt direct-drive inner-rotor permanent magnet wind turbine generator system Download PDFInfo
- Publication number
- CN201486773U CN201486773U CN2009202244575U CN200920224457U CN201486773U CN 201486773 U CN201486773 U CN 201486773U CN 2009202244575 U CN2009202244575 U CN 2009202244575U CN 200920224457 U CN200920224457 U CN 200920224457U CN 201486773 U CN201486773 U CN 201486773U
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- moving axis
- rotor
- dead axle
- end cover
- axis
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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 utility model discloses a megawatt direct-drive inner-rotor permanent magnet wind turbine generator system. The system comprises wind wheels, a variable pitch propeller system, a magneto generator, an engine room frame and a yawing system, wherein the magneto generator comprises a housing, a stator, a front end cover, a rotor, a rear end cover and a rotor rotary support mechanism; the rotor rotary support mechanism comprises a moving axis, bearings I, a fixed axis and bearings II; the moving axis and the fixed axis are hollow axes; the moving axis is sleeved outside the fixed axis; the bearings I are arranged at one end of the moving axis and one end of the fixed axis, and the bearings II are arranged at the other ends thereof; the rotor is fixed on the moving axis; the moving axis is connected with the wind wheels; and the fixed axis is connected with the engine room frame. The hollow fixed axis can provide a passage from the engine room frame to the hub for equipment maintenance personnel to ensure personnel safety; the demand on carrying capacity of the bearing is low; and the generator bears an end cover on one side and the fixed axis, and is connected with the engine room frame, thereby achieving the purpose that the end cover bears the load of the generator stator, and the fixed axis bears the load of the rotor and the wind wheels.
Description
Technical field
The utility model relates to a kind of wind power generating set, particularly a kind of megawatt-stage direct-drive internal rotor permanent-magnetic wind power generating set.
Background technique
In wind power generating set, adopt wind wheel directly to drive electric generator structure and be called the direct-driving type wind power generation unit, but the New Product that the direct-driving type wind power generation unit is a development in recent years to get up, its advantage is to reduce step-up gear and drivetrain components, improve the reliability and the generating efficiency of wind power generating set, reduce the wind power generating set noise.Adopt full power convertor between generator and the electrical network.Be fit to the electric network fault service requirement.
At home and abroad have on the market at present and directly drive the external rotor wind driven electric generator group, have direct-drive internal rotor to adopt single shaft to hold wind power generating set, have and directly drive duplex bearing solid shaft wind power generating set.
More than various direct-driving type wind power generation units all have different levels shortcomings.As directly driving the external rotor wind driven electric generator group, to seal badly, dust storm mosquito etc. enters generator inside easily, causes damage to generating, need be passed through from the generator outside to wheel hub by cabin, and is very dangerous.Single shaft holds the generator set of supporting structure for another example, needs a bearing to carry axial force and two kinds of moments of radial force simultaneously, and bearing requires high, and bearing is made processing difficulties, cost height.Duplex bearing solid shaft wind power generating set back shaft is fixed on the front and rear cover, and rear end cover is fixed on the support again, makes rear end cover will bear casing, stator, rotor, front cover, rotor supports axle and is fixed on epitrochanterian impeller and the weight of himself.The load that rear end cover bears is too big.Duplex bearing supports real mandrel and directly drives generator and exist ventilation and heat bad for another example, need be passed through through the generator outside by cabin to wheel hub, has potential safety hazard.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of load distribution evenly, the bearing load carrying capacity of rear end cover and support rotor is required the megawatt-stage direct-drive internal rotor permanent-magnetic wind power generating set low, that Safety performance is high.
In order to solve the problems of the technologies described above, the utility model comprises wind wheel, becomes slurry apart from system, permanent magnet generator, cabin support and yaw system, permanent magnet generator comprises casing, stator, front cover, rotor, rear end cover and rotor rotary support mechanism, described rotor rotary support mechanism comprises moving axis, bearing I, dead axle and bearing I I, moving axis and dead axle are hollow shaft, outside the moving axis cover dead axle, end between moving axis and the dead axle is established bearing I, the other end is established bearing I I, rotor is fixed on the moving axis, moving axis is connected with wind wheel, and dead axle is connected with the cabin support.
In order to be convenient under the prerequisite that the attendant passes through, make center of gravity to the skew of cabin support, described moving axis and dead axle are the taper hollow shaft, the big end and the cabin support of dead axle fix.
For the ease of fixing of rear end cover, dead axle and cabin support, and make load distribution more even, described dead axle is provided with and is in the outer retaining platform of rear end cover, and rear end cover, retaining platform and cabin support are connected in series fixing by link successively.
For the ease of the permanent magnet generator internal heat dissipating, described casing is provided with radiating fin, and rear end cover is provided with radiation fan.
The beneficial effects of the utility model are: wind wheel of the present utility model directly is connected with moving axis, makes wind wheel catch the kinetic energy direct driving rotor of wind, and the rotor rotation makes generator be converted into electric energy to kinetic energy.Hollow dead axle can provide the device maintenance personnel by the passage of cabin support to wheel hub, guarantees personal safety.Moving axis is by two bearings, and bearing load carrying capacity requires low, and generator carries a side end cap and is connected with the cabin support simultaneously with dead axle, reaches end cap and bears generator unit stator load, and dead axle is born the purpose of rotor and wind wheel load.The utlity model has advantage simple in structure, that wind energy utilization good, generating efficiency is high, simple science is made up in stable and reliable operation, complete machine.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of part 4 and part 7 among Fig. 1;
Among the figure: 1, wind wheel, 2, become slurry, 3, moving axis, 4, permanent magnet generator apart from system, 5, radiating fin, 6, radiation fan, 7, the cabin support, 8, yaw system, 9, bolt I, 10, bolt II, 11, casing, 12, bolt III, 13, stator, 14, front cover, 15, rotor, 16, seal ring, 17, bearing I, 18, dead axle, 19, bearing I I, 20, rear end cover.
Embodiment
A kind of specific embodiment as shown in Figure 1, it comprises wind wheel 1, becomes slurry apart from system 2, permanent magnet generator 4, cabin support 7 and yaw system 8.
As shown in Figure 2, permanent magnet generator 4 comprises casing 11, stator 13, front cover 14, rotor 15, rear end cover 20 and rotor rotary support mechanism, front cover 14 is fixed on the front end of casing 11 by bolt III 12, and rear end cover 20 is fixed on the rear end of casing 11 by bolt III 12.Casing 11 is provided with radiating fin 5, and rear end cover 20 is provided with radiation fan 6.Stator 13 and rotor 15 are arranged in the casing 11.The rotor rotary support mechanism comprises moving axis 3, bearing I 17, dead axle 18 and bearing I I 19, moving axis 3 and dead axle 18 are the taper hollow shaft, moving axis 3 and dead axle 18 are inserted in the casing 11, moving axis 3 is enclosed within outside the dead axle 18, end between moving axis 3 and the dead axle 18 is established bearing I 17, the other end is established bearing I I 19, rotor 15 is fixed on the moving axis 3, and moving axis 3 is connected with wind wheel 1 by bolt II 10, is provided with seal ring 16 between moving axis 3 and the front cover 14.Dead axle 18 is in rear end cover 20 outer ends the retaining platform, and rear end cover 20, retaining platform and cabin support 7 are connected in series fixing successively by bolt I 9.
Claims (4)
1. megawatt-stage direct-drive internal rotor permanent-magnetic wind power generating set, comprise wind wheel (1), become slurry apart from system (2), permanent magnet generator (4), cabin support (7) and yaw system (8), permanent magnet generator (4) comprises casing (11), stator (13), front cover (14), rotor (15), rear end cover (20) and rotor rotary support mechanism, it is characterized in that: described rotor rotary support mechanism comprises moving axis (3), bearing I (17), dead axle (18) and bearing I I (19), moving axis (3) and dead axle (18) are hollow shaft, outside moving axis (3) the cover dead axle (18), end between moving axis (3) and the dead axle (18) is established bearing I (17), the other end is established bearing I I (19), rotor (15) is fixed on the moving axis (3), moving axis (3) is connected with wind wheel (1), and dead axle (18) is connected with cabin support (7).
2. megawatt-stage direct-drive internal rotor permanent-magnetic wind power generating set according to claim 1 is characterized in that: described moving axis (3) and dead axle (18) are the taper hollow shaft, and the big end of dead axle (18) and cabin support (7) fix.
3. megawatt-stage direct-drive internal rotor permanent-magnetic wind power generating set according to claim 1 and 2, it is characterized in that: described dead axle (18) is provided with and is in the outer retaining platform of rear end cover (20), and rear end cover (20), retaining platform and cabin support (7) are connected in series fixing by link successively.
4. megawatt-stage direct-drive internal rotor permanent-magnetic wind power generating set according to claim 3 is characterized in that: described casing (11) is provided with radiating fin (5), and rear end cover (20) is provided with radiation fan (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202244575U CN201486773U (en) | 2009-08-28 | 2009-08-28 | Megawatt direct-drive inner-rotor permanent magnet wind turbine generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202244575U CN201486773U (en) | 2009-08-28 | 2009-08-28 | Megawatt direct-drive inner-rotor permanent magnet wind turbine generator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486773U true CN201486773U (en) | 2010-05-26 |
Family
ID=42425650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202244575U Expired - Fee Related CN201486773U (en) | 2009-08-28 | 2009-08-28 | Megawatt direct-drive inner-rotor permanent magnet wind turbine generator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769374A (en) * | 2012-05-22 | 2012-11-07 | 国电联合动力技术有限公司 | Direct drive type wind turbine generator system |
| CN110486237A (en) * | 2019-09-04 | 2019-11-22 | 东方电气集团东方电机有限公司 | A kind of megawatt-level low-speed direct wind-driven generator shafting device |
-
2009
- 2009-08-28 CN CN2009202244575U patent/CN201486773U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769374A (en) * | 2012-05-22 | 2012-11-07 | 国电联合动力技术有限公司 | Direct drive type wind turbine generator system |
| CN110486237A (en) * | 2019-09-04 | 2019-11-22 | 东方电气集团东方电机有限公司 | A kind of megawatt-level low-speed direct wind-driven generator shafting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20140828 |
|
| EXPY | Termination of patent right or utility model |