CN208581105U - A kind of doubly-fed wind turbine New Insulation Structure - Google Patents
A kind of doubly-fed wind turbine New Insulation Structure Download PDFInfo
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- CN208581105U CN208581105U CN201821226613.7U CN201821226613U CN208581105U CN 208581105 U CN208581105 U CN 208581105U CN 201821226613 U CN201821226613 U CN 201821226613U CN 208581105 U CN208581105 U CN 208581105U
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Abstract
A kind of doubly-fed wind turbine New Insulation Structure mainly includes stator coil and rotor coil；The stator coil uses single glass fibre packet Kapton copper flat wire wrapped, the wrapped polyimides glass cloth reinforcement low resin mica tape of stator coil internal layer, the wrapped alkali-free glass silk ribbon of stator coil outer layer, the wrapped glass cloth reinforcement low resin mica tape of rotor coil internal layer, the wrapped polyimides glass cloth reinforcement low resin mica tape of rotor coil outer layer, the resistance to environmental aging of this insulation system, mechanical resistant aging, resistant to partial discharges aging.
Description
Technical field
It is novel absolutely that the utility model relates to doubly-fed wind turbine field of accessories more particularly to a kind of doubly-fed wind turbine
Edge structure.
Background technique
Wind-power electricity generation increasingly has been favored by people because of high-efficiency cleaning.The wherein most critical portion as wind-power electricity generation equipment
The development of part, wind-driven generator is particularly critical, and the reliability and service life of motor operation depend primarily on setting for insulation system
The application of meter and its material.
There are two types of patterns for the insulation system of doubly-fed wind turbine, and one is be main resistance to corona-resistant polyimide film
Corona material, supplemented by combined mica, this structure has the advantages that mechanical strength is higher, thickness is thin, the disadvantage is that thermal coefficient is low,
Heating conduction is poor, higher cost；Another insulation system is with mica for main Inverter fed motor material, and this insulation system is compared with the former
It is high, at low cost to have the advantages that thermal coefficient, but it is thicker to insulate, but with the improvement of insulating materials manufacturing process, mica tape
Thickness be gradually thinned.
Doubly-fed wind turbine operation covers the various work condition environments such as salt fog, humidity, the temperature difference, vibration, sand and dust, thunder and lightning,
Need to bear erosion and injury of the various environmental factors to its insulation system.Double-fed wind power generator rotor insulation system needs are held
Except by above-mentioned environmental factor, under the action of the factors such as the voltage build-up rate du/dt of frequency converter and circuit, rotor-end voltage wave
There are spikes in shape, will lead to partial discharge inception voltage's reduction, accelerate insulation ag(e)ing, shorten insulation life.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of resistance to environmental aging, resistance to
Mechanical aging, a kind of doubly-fed wind turbine New Insulation Structure of resistant to partial discharges aging.
To realize the utility model the following technical schemes are provided: a kind of doubly-fed wind turbine New Insulation Structure, mainly
Including stator coil and rotor coil；The stator coil uses single glass fibre packet Kapton copper flat wire wrapped, described
The wrapped polyimides glass cloth reinforcement low resin mica tape of stator coil internal layer, as the major insulation of stator coil, the stator line
The wrapped alkali-free glass silk ribbon of outer layer is enclosed, as the protective layer of stator coil, stator slot is equipped in the stator slot of the stator coil
Insulating layer；The wrapped polyimides glass cloth reinforcement low resin mica tape of rotor coil internal layer, as rotor slot armer I,
The wrapped polyimides glass cloth reinforcement low resin mica tape of rotor coil outer layer, as rotor slot armer II, described turn
Rotor slot insulation layer is equipped in the rotor slot of subcoil.
Preferably, at least one layer of polyimides glass cloth reinforcement low resin mica tape half lap is wrapped in the list of the stator coil
On the outside of glass fiber packet Kapton copper flat wire wrapped.
Preferably, at least one layer of polyimides glass cloth reinforcement low resin mica tape half lap is wrapped in the rotor coil
Layer, at least two layers of polyimide glass cloth reinforcement low resin mica tape half lap is wrapped in the rotor coil outer layer.
Preferably, the stator groove insulation layer and rotor slot insulation layer are 6650 insulating papers, the number of plies is at least one layer.
The usefulness of the utility model: first, vacuum pressure impregnation makes doubly-fed wind turbine more excellent performance, structure
More reliable property runs more stable, long service life；Second, glass cloth reinforcement low resin mica tape has excellent corona-resistance property,
It can not only resist Corona Corrosion in rotor coil internal layer, can also improve the part of rotor by reducing space-charge accumulation
Discharge inception voltage；Polyimides glass cloth reinforcement low resin mica tape has excellent electrical property, mechanical performance and humidity resistance,
It betters meet the various environmental working conditions of double feedback electric engine in stator and rotor coil outer layer.
Detailed description of the invention
Fig. 1 is stator coil structure schematic diagram.
The position Fig. 2 rotor coil structural schematic diagram.
In figure: 1 being stator coil winding, 2 be stator coil major insulation, 3 be stator coil protective layer, 4 be that rotor copper is female
Line, 5 be rotor slot armer I, 6 are rotor slot armers II.
Specific embodiment
A kind of doubly-fed wind turbine New Insulation Structure mainly includes rotor coil and stator coil；The stator line
Circle uses single glass fibre packet Kapton copper flat wire wrapped, as stator coil winding 1, the stator coil winding 1
External wrapped polyimides glass cloth reinforcement low resin mica tape, as stator coil major insulation 2, the stator coil major insulation 2
The wrapped alkali-free glass silk ribbon in outside is equipped with stator groove insulation as stator coil protective layer 3 in the stator slot of the stator coil
Layer；The rotor coil uses soft copper bar, and as rotor copper busbar 4, the wrapped polyamides in the outside of the rotor coil copper busbar 4 is sub-
Amine glass cloth reinforcement low resin mica tape, as rotor slot armer I 5, the I 5 wrapped polyamides in outside of rotor slot armer
Imines glass cloth reinforcement low resin mica tape is equipped with rotor as rotor slot armer II 6 in the rotor slot of the rotor coil
Layer slot insulator, at least one layer polyimides glass cloth reinforcement low resin mica tape half lap are wrapped in the stator coil winding 1
Outside, at least one layer of polyimides glass cloth reinforcement low resin mica tape half lap are wrapped in the outside of the rotor coil copper busbar 4, until
Few two layers of polyimide glass cloth reinforcement low resin mica tape half lap is wrapped in the outside of the rotor slot armer I 5, the stator
Layer slot insulator and rotor slot insulation layer are 6650 insulating papers, and the number of plies is at least one layer.
It is novel absolutely that the utility model is not limited to a kind of doubly-fed wind turbine involved in above-mentioned specific embodiment
Edge structure, those skilled in the art can also make a variety of variations accordingly, but any be equal with the utility model or similar
As change and should all cover in the range of the utility model claims.
Claims (4)
1. a kind of doubly-fed wind turbine New Insulation Structure, it is characterised in that: mainly include stator coil and rotor coil；Institute
Stator coil is stated using single glass fibre packet Kapton copper flat wire wrapped, the wrapped polyimide glass of stator coil internal layer
Glass cloth reinforcement low resin mica tape, as stator coil major insulation, the wrapped alkali-free glass silk ribbon of stator coil outer layer, as fixed
Subcoil protective layer, the stator slot of the stator coil is interior to be equipped with stator groove insulation layer；
The wrapped polyimides glass cloth reinforcement low resin mica tape of rotor coil internal layer, it is described as rotor slot armer I
The wrapped polyimides glass cloth reinforcement low resin mica tape of rotor coil outer layer, as rotor slot armer II, the rotor line
Rotor slot insulation layer is equipped in the rotor slot of circle.
2. a kind of doubly-fed wind turbine New Insulation Structure according to claim 1, it is characterised in that: at least one layer is poly-
Acid imide glass cloth reinforcement low resin mica tape half lap is wrapped in the single glass fibre packet Kapton of the stator coil around copper-clad
On the outside of flat wire.
3. a kind of doubly-fed wind turbine New Insulation Structure according to claim 1, it is characterised in that: at least one layer is poly-
Acid imide glass cloth reinforcement low resin mica tape half lap is wrapped in the rotor coil internal layer, at least reinforcement of two layers of polyimide glass cloth
Low resin mica tape half lap is wrapped in the rotor coil outer layer.
4. a kind of doubly-fed wind turbine New Insulation Structure according to claim 1, it is characterised in that: the stator slot
Insulating layer and rotor slot insulation layer are 6650 insulating papers, and the number of plies is at least one layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821226613.7U CN208581105U (en) | 2018-08-01 | 2018-08-01 | A kind of doubly-fed wind turbine New Insulation Structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821226613.7U CN208581105U (en) | 2018-08-01 | 2018-08-01 | A kind of doubly-fed wind turbine New Insulation Structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208581105U true CN208581105U (en) | 2019-03-05 |
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ID=65511632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821226613.7U Active CN208581105U (en) | 2018-08-01 | 2018-08-01 | A kind of doubly-fed wind turbine New Insulation Structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN208581105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018923A (en) * | 2019-05-29 | 2020-12-01 | 大银微系统股份有限公司 | Coil insulation structure of rotating electric machine |
-
2018
- 2018-08-01 CN CN201821226613.7U patent/CN208581105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018923A (en) * | 2019-05-29 | 2020-12-01 | 大银微系统股份有限公司 | Coil insulation structure of rotating electric machine |
| CN112018923B (en) * | 2019-05-29 | 2022-03-15 | 大银微系统股份有限公司 | Coil insulation structure of rotating electric machine |
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