CN2874901Y - High power double feeding asynchronous wind power generator - Google Patents
High power double feeding asynchronous wind power generator Download PDFInfo
- Publication number
- CN2874901Y CN2874901Y CN 200620023764 CN200620023764U CN2874901Y CN 2874901 Y CN2874901 Y CN 2874901Y CN 200620023764 CN200620023764 CN 200620023764 CN 200620023764 U CN200620023764 U CN 200620023764U CN 2874901 Y CN2874901 Y CN 2874901Y
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- China
- Prior art keywords
- rotor
- doube
- driven generator
- asynchronous
- big power
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- Expired - Fee Related
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Abstract
The utility model relates to a large-power double-feed asynchronous wind generator, aiming to solve the problems of mismatch of conventional wound-type asynchronous generator with the large-power double-feed asynchronous wind generator and poor cooling structure of the motor. The large-power double-feed asynchronous wind generator comprises a pedestal, a stator, a rotor, interelectrode connection lines of the rotor, and star-connected zero line made of rigid flat copper bus, wherein the interelectrode connection line and star-connected zero line are tightly attached to rotor coils. Fixing stand and corresponding insulation layer are obviated so as to cut off the path between the rotation coils and the ground, thereby obviating creepage caused by contaminated insulating layer. A fixing base is fixed on the shaft of the rotor for reliably fixing and insulating three-phase cables of the rotor, and air-air cooling manner is adopted. The utility model has safe and reliable operation and wide application range.
Description
Technical field
The utility model relates to generator, is specially asynchronous big power and doube-feedback wind-driven generator.
Background technology
The development of Chinese large-sized wind turbine generator is started late, wind-driven generator power grade and technical merit with compared big gap abroad.750kW is main force's type of homemade wind turbine generator at present, and necessary electromotor is a squirrel cage induction motor.Because high-power wind-driven generator (as 1.5MW) is a double fed asynchronous machine, structurally has particularity.The part-structure of existing general Wound-rotor asynchronous generator is not suitable for asynchronous big power and doube-feedback wind-driven generator, be in particular in: 1, (as shown in Figure 1) general Wound-rotor asynchronous generator is in the motor-spin-coil end, steel support 1 is equipped with in the coil below, and coil interpolar line 2, star connecting to neutral line 3 are close to support and are fixed.Rely on insulating barrier 4 insulation between support and the coil.The long-time high-speed cruising of motor, support insulation is wearing and tearing easily, and after insulating barrier pollutes, and easily cause between coil and support creepagely, cause the shorted to earth fault.2, the inner nothing of the rotor three-phase cable axis of rotation is drawn regularly.This structure produces loosening, wearing and tearing because of huge centrifugal force makes cable easily when the motor high speed rotating, fracture flies out, and causes electrical fault.
At present, asynchronous big power and doube-feedback wind-driven generator adopts water-cooling structure, but water-cooling structure has certain limitation in the northern frore area use.
Summary of the invention
The utility model is not suitable for the deficiency that asynchronous big power and doube-feedback wind-driven generator and asynchronous big power and doube-feedback wind-driven generator exist at the part-structure of general Wound-rotor asynchronous generator on cooling structure, a kind of asynchronous big power and doube-feedback wind-driven generator with new structure is provided.
The utility model is to adopt following technical scheme to realize: asynchronous big power and doube-feedback wind-driven generator, comprise support, stator, rotor, line, star connecting to neutral line adopt the flat copper bus of rigidity and compression moulding between rotor pole, interpolar line, star connecting to neutral line are close to rotor coil, promptly according to line distance and mode, with the flat copper bus firmly around compression moulding, and with rotor coil welding, rely on the rigidity of copper busbar to make interpolar line, firm being connected and fixed of star connecting to neutral line.Interpolar line, star connecting to neutral line are close to rotor coil, do not re-use fixed support and corresponding insulation layer, have reduced the rotor coil likelihood of failure of short circuit over the ground, have avoided the damaged creepage phenomenon that causes that pollutes of insulating barrier.
In the rotating shaft of rotor, be mounted with three holders of making by insulating material and sponge; the rotor three-phase cable is carried out fixing reliably and insulation protection; avoid threephase cable to make the generation of faults such as cable wearing and tearing, fracture because of the centrifugal force long term, further guaranteed the permanent reliability service of motor.
Both sides, support top have fresh air inlet, the middle part has exhaust vent, have the radial ventilation hole on the stator and rotor iron core, and are fixed with hollow cooler at the support top.Like this, just form absolutely empty cooling structure.Described hollow cooler is existing known products, can buy from Jiangsu Zhaosheng Air Conditioner Co., Ltd. at least.This hollow cooler is fixed in the generator top, its bottom has the wind hole corresponding with the outlet and inlet hole site at support top, the air blast in cooler of the air blast of one side, cooling air enters motor internal by the fresh air inlet of hollow cooler both sides on support, in the time of cooling rotor end winding, axially enter rotor.Cooling air radially ventilation hole cools off rotor respectively by rotor core, stator core.The exhaust vent of hot-air on support that comes out from stator core enters the hollow cooler on motor top.Hot-air carries out becoming cooling air after the heat exchange in hollow cooler, enters motor internal once more.So circulation constitutes motor internal ventilation wind path.
The utility model provides reasonable structural design for asynchronous big power and doube-feedback wind-driven generator, and has provided the air cooling structure, makes this asynchronous big power and doube-feedback wind-driven generator operation safer, reliable, and the scope of application is more extensive.The power of this asynchronous big power and doube-feedback wind-driven generator can reach 1.5MW, is the high-power absolutely empty cooling double-fed asynchronous wind generator of domestic first platform.Changed the present situation of the double-fed absolutely empty cold wind power generator dependence on import of MW class, for this blank has been filled up by country.
Description of drawings
Fig. 1 is existing general Wound-rotor asynchronous generator amature end support structure schematic diagram.
Fig. 2 is the rotor terminal structure schematic diagram of asynchronous big power and doube-feedback wind-driven generator described in the utility model;
Fig. 3 is the overall structure schematic diagram of asynchronous big power and doube-feedback wind-driven generator described in the utility model;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is a support top surface structure schematic diagram;
Fig. 6 is the structural representation of rotor;
Among the figure: 1-support, 2-interpolar line, 3-star connecting to neutral line, 4-insulating barrier, 5-support, 6-stator, 7-rotor, 8-holder, 9-band, 10-fresh air inlet, 11-exhaust vent, 12-ventilation hole, 13-hollow cooler.
Embodiment
Asynchronous big power and doube-feedback wind-driven generator, comprise support 5, stator 6, rotor 7, line 2, star connecting to neutral line 3 adopt the flat copper bus of rigidity and compression moulding between rotor pole, interpolar line, star connecting to neutral line are close to rotor coil, promptly according to line distance and mode, with the flat copper bus firmly around compression moulding, and with rotor coil welding, rely on the rigidity of copper busbar to make interpolar line, firm being connected and fixed of star connecting to neutral line.In the rotating shaft of rotor 7, be mounted with three holders of making by insulating material and sponge 8, the rotor three-phase cable is carried out fixing reliably and insulation protection.The rotor surface bag is tied with band 9, makes the rotor increase bear the ability of centrifugal force.These measures have reduced the rotor short trouble, have guaranteed that motor moves more for a long time reliably.Both sides, support 5 top have fresh air inlet 10, the middle part has exhaust vent 11, have radial ventilation hole 12 (being 11 rows in this concrete enforcement) on the stator and rotor iron core, and are fixed with hollow cooler 13 at the support top.Like this, just form absolutely empty cooling structure.
Claims (5)
1, a kind of asynchronous big power and doube-feedback wind-driven generator, comprise support (5), stator (6), rotor (7), it is characterized by: line between rotor pole (2), star connecting to neutral line (3) adopt the flat copper bus of rigidity and compression moulding, and interpolar line, star connecting to neutral line are close to rotor coil.
2, asynchronous big power and doube-feedback wind-driven generator as claimed in claim 1 is characterized by: be mounted with three holders of being made by insulating material and sponge (8) in the rotating shaft of rotor (7).
3, asynchronous big power and doube-feedback wind-driven generator as claimed in claim 1 or 2, it is characterized by: support (5) both sides, top have fresh air inlet (10), the middle part has exhaust vent (11), have radial ventilation hole (12) on the stator and rotor iron core, and be fixed with hollow cooler (13) at the support top.
4, asynchronous big power and doube-feedback wind-driven generator as claimed in claim 1 or 2 is characterized by: the rotor surface bag is tied with band (9).
5, asynchronous big power and doube-feedback wind-driven generator as claimed in claim 3 is characterized by: the rotor surface bag is tied with band (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620023764 CN2874901Y (en) | 2006-03-14 | 2006-03-14 | High power double feeding asynchronous wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620023764 CN2874901Y (en) | 2006-03-14 | 2006-03-14 | High power double feeding asynchronous wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874901Y true CN2874901Y (en) | 2007-02-28 |
Family
ID=37781490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620023764 Expired - Fee Related CN2874901Y (en) | 2006-03-14 | 2006-03-14 | High power double feeding asynchronous wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874901Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364211C (en) * | 2006-03-14 | 2008-01-23 | 中国北车集团永济电机厂 | Asynchronous big power and doube-feedback wind-driven generator |
| CN102497052A (en) * | 2011-11-29 | 2012-06-13 | 中电电机股份有限公司 | Peripheral pipe distribution machine base structure of air-air cooling motor |
-
2006
- 2006-03-14 CN CN 200620023764 patent/CN2874901Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364211C (en) * | 2006-03-14 | 2008-01-23 | 中国北车集团永济电机厂 | Asynchronous big power and doube-feedback wind-driven generator |
| CN102497052A (en) * | 2011-11-29 | 2012-06-13 | 中电电机股份有限公司 | Peripheral pipe distribution machine base structure of air-air cooling motor |
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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: YONGJI NEW SPEED ELECTRIC MOTOR CO. Free format text: FORMER OWNER: YONGJI MOTOR FACTORY, CHINESE BEICHE GROUP Effective date: 20081031 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081031 Address after: No. 18, motor street, Yongji, Shanxi Province: 044500 Patentee after: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. Address before: No. 18, motor street, Yongji, Shanxi Province: 044500 Patentee before: CNR Yongji Electric Machine Factory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 Termination date: 20110314 |