CN103701239A - Stator winding for megawatt medium-voltage heavy-current generator - Google Patents
Stator winding for megawatt medium-voltage heavy-current generator Download PDFInfo
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- CN103701239A CN103701239A CN201310691014.8A CN201310691014A CN103701239A CN 103701239 A CN103701239 A CN 103701239A CN 201310691014 A CN201310691014 A CN 201310691014A CN 103701239 A CN103701239 A CN 103701239A
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- winding
- generator
- stator winding
- stator
- current generator
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Abstract
The invention discloses a stator winding for a megawatt medium-voltage heavy-current generator. The stator winding is a random winding; a lapped wire of the random winding is a type 4 polyimide film glass fiber lapped composite wire. According to the stator winding, soldering points of coils can be reduced, the reliability of products is improved, and the price of the random winding is lower than the price of a stretching formed winding, so that the manufacturing cost can be reduced. Meanwhile, the space occupied by the end part can be effectively reduced, so that the structure of the generator is more compact. In the aspect of insulating property, the random winding is the type 4 polyimide film glass fiber lapped composite wire, and the insulating property can meet the requirement of the generator. In the aspect of heat dissipation, the heat dissipation of a stator core part of the random winding is higher than the heat dissipation of the stretching formed winding, so that the temperature rise of the generator is reduced, the reliability is improved, and the service life of the generator is prolonged.
Description
Technical field
The present invention relates to a kind of stator winding, relate in particular to and in a kind of MW class, press large current generator stator winding.
Background technology
In common MW class, press in large current generator, stator coil generally can adopt drawing and forming winding construction.Drawing and forming winding construction rule is comparatively easy, but the pad of winding is more, higher to welding process requirement.The physical dimension of drawing and forming winding coil requires comparatively strict.Adopt the electric machine temperature rise of drawing and forming winding construction higher, therefore higher to ventilation and heat structural requirement.The price of drawing and forming winding construction is higher.End takes up room larger.
Summary of the invention
For addressing the above problem, the present invention is under the performance prerequisite of assurance generator, and the factors such as the Welding Problems of consideration generator and economy, to pressing the stator winding of large current generator to adopt loose embedding winding construction in MW class.
The present invention adopts following technical scheme:
In MW class, press a large current generator stator winding, described stator winding adopts loose embedding winding, and the lapped wire of described loose embedding winding adopts 4 type imines film glass filament winding cladding zygonemas.
Beneficial effect: the present invention can reduce the pad of coil, the reliability of raising product, loose winding price is low with respect to the price of drawing and forming winding, can reduce manufacturing cost.The end (C and D size in Fig. 2) of loose winding is short with respect to the end (A and B size in Fig. 1) of drawing and forming winding, can effectively reduce end and take up room, and makes the structure of generator compacter.
From the viewpoint of insulation property, loose winding adopts 4 type imines film glass filament winding cladding zygonemas, and insulation property can reach the requirement of generator.From the viewpoint of heat radiation, the heat radiation of the stator core of loose winding part is better than the heat radiation of drawing and forming winding relatively, thereby reduces the temperature rise of generator, improves unfailing performance, extends generator useful life.
Accompanying drawing explanation
Fig. 1 is drawing and forming coil schematic diagram;
Fig. 2 is the loose winding coil schematic diagram in the present invention.
Embodiment
In prior art, stator coil generally can adopt drawing and forming winding construction, in a kind of MW class of the present invention, press large current generator stator winding, described stator winding adopts loose embedding winding, and the lapped wire of described loose embedding winding adopts 4 type imines film glass filament winding cladding zygonemas.
Beneficial effect: the present invention can reduce the pad of coil, the reliability of raising product, loose embedding winding price is low with respect to the price of drawing and forming winding, can reduce manufacturing cost.The end (C and D size in Fig. 2) of loose embedding winding is short with respect to the end (A and B size in Fig. 1) of drawing and forming winding, can effectively reduce end and take up room, and makes the structure of generator compacter.
From the viewpoint of insulation property, loose embedding winding adopts 4 type imines film glass filament winding cladding zygonemas, and insulation property can reach the requirement of generator.From the viewpoint of heat radiation, the heat radiation of the stator core of loose winding part is better than the heat radiation of drawing and forming winding relatively, thereby reduces the temperature rise of generator, improves unfailing performance, extends generator useful life.
Claims (1)
1. in MW class, press a large current generator stator winding, it is characterized in that: described stator winding adopts loose embedding winding, the lapped wire of described loose embedding winding adopts 4 type imines film glass filament winding cladding zygonemas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691014.8A CN103701239A (en) | 2013-12-12 | 2013-12-12 | Stator winding for megawatt medium-voltage heavy-current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691014.8A CN103701239A (en) | 2013-12-12 | 2013-12-12 | Stator winding for megawatt medium-voltage heavy-current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103701239A true CN103701239A (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310691014.8A Pending CN103701239A (en) | 2013-12-12 | 2013-12-12 | Stator winding for megawatt medium-voltage heavy-current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103701239A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101528822A (en) * | 2006-07-05 | 2009-09-09 | 新加坡科技研究局 | Porous polymeric articles |
| CN101814779A (en) * | 2010-04-30 | 2010-08-25 | 江西泰豪特种电机有限公司 | Double-fed aerogenerator stator |
| CN101894613A (en) * | 2010-06-13 | 2010-11-24 | 江苏豪威富电气股份有限公司 | Electromagnetic wire for wind driven generator |
-
2013
- 2013-12-12 CN CN201310691014.8A patent/CN103701239A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101528822A (en) * | 2006-07-05 | 2009-09-09 | 新加坡科技研究局 | Porous polymeric articles |
| CN101814779A (en) * | 2010-04-30 | 2010-08-25 | 江西泰豪特种电机有限公司 | Double-fed aerogenerator stator |
| CN101894613A (en) * | 2010-06-13 | 2010-11-24 | 江苏豪威富电气股份有限公司 | Electromagnetic wire for wind driven generator |
Non-Patent Citations (1)
| Title |
|---|
| 刘木清: "《3.6MW海上双馈风力发电机设计研究》", 《中国优秀硕士学位论文全文数据库信息科技II辑》, 15 July 2013 (2013-07-15), pages 042 - 97 * |
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Application publication date: 20140402 |