CN102185439A - Manufacturing method of insulation structure of 3 megawatt wind driven generator stator coil - Google Patents
Manufacturing method of insulation structure of 3 megawatt wind driven generator stator coil Download PDFInfo
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- CN102185439A CN102185439A CN 201110128511 CN201110128511A CN102185439A CN 102185439 A CN102185439 A CN 102185439A CN 201110128511 CN201110128511 CN 201110128511 CN 201110128511 A CN201110128511 A CN 201110128511A CN 102185439 A CN102185439 A CN 102185439A
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Abstract
A manufacturing method of an insulation structure of a 3 megawatt wind driven generator stator coil comprises the following steps: 1) half-lapped wrapping a corona-resistant polyimide film strip on a copper flat wire; 2) half-lapped wrapping a layer of single-side backed dry mica tape; 3) half-lapped wrapping a layer of corona-resistant polyimide film strip; 4) half-lapped wrapping a layer of single-side backed dry mica tape; 5) half-lapped wrapping a layer of corona-resistant polyimide film strip; 6) half-lapped wrapping a layer of polytetrafluoethylene strip; and 7) flat-wrapping a layer of alkali-free glass fiber strip. According to the insulation structure, the insulation thickness is thin, turn-to-turn insulation thickness is decreased from 0.40mm to 0.21mm, the thickness of insulation to ground is decreased from 1.84mm to 1.70mm, and the temperature class of insulation is increased from F level to 200 level, thus realizing a smaller and lighter insulation structure and increasing the power of the insulation structure having the same volume and weight as a motor. The price of the corona-resistant polyimide film strip is only one third of that of an imported corona-resistant polyimide film strip. The method can be widely applied to the stator coils of 3 megawatt double-fed and direct-drive wind driven generators, petroleum drilling electric machines and the stator coils of oil extraction electric machines, main-line locomotives and main train unit traction motors.
Description
Technical field
The invention belongs to 3 megawatt aerogenerator stator manufacturing technology fields, relate to a kind of manufacture method of insulation system of 3 megawatt aerogenerator stator coils of practicality.
Background technology
Wind-driven generator is a kind of novel clean energy resource, to the consumption that reduces non-renewable fossil energy with reduce carbon dioxide, sulfur dioxide etc. the pollution tool of environment is had very important significance, is the novel energy project that state key is greatly developed.
Because large-scale wind driven generator mostly is installed in China three northern areas of China and sea and coastal area.The three northern areas of China high-land, temperature is low, and day and night temperature is big, and dust storm is big; Sea and coastal area salt air corrosion are serious, and air humidity is big, general relative humidity 95%, and maximum 100%, such running environment is very big to the insulation breakdown effect of wind-driven generator.Simultaneously, the wind-driven generator of 3 megawatts all is installed on nearly hundred meters the high-altitude, and very difficulty is installed, the very difficulty of maintenance that breaks down, and expense is also very high, and the existence of these factors just requires the insulation of wind-driven generator more reliable.So when design wind-driven generator insulation system, will think better of the environmental suitability of generator, simultaneously, 3 megawatt aerogenerator stator voltages are 690V, low-voltage and high-current, the cross section of coil is bigger, moulding and rule difficulty are big, so when design wind-driven generator insulation system, consider the adaptability of coil manufacturing process.Wind-driven generator is installed in nearly hundred meters high-altitude, also can be subjected to the effect of lightning overvoltage, so when design wind-driven generator insulation system, consider that coil should have the ability of anti-corona.Wind-driven generator also will be subjected to the effect of mechanical force, electromagnetic force, vibrations when operation in addition, makes generator insulating be in the effect of alternate stress, quickens the aging of electrical machine insulation.So when design wind-driven generator insulation system, take into full account the comprehensive function influence that coil insulation is subjected to these factors.The heart that all motor coil is called motor in the field of business, coil insulation then are the hearts of motor heart, through statistics for many years, the fault that motor takes place more than 50% since the coil insulation damage cause.So the design of coil of stator of motor insulation system is very important.
Summary of the invention
At harsh operational environment of megawatt wind-driven generator and abominable condition of work, the object of the present invention is to provide a kind of manufacture method of insulation system of the 3 megawatt aerogenerator stator coils that can satisfy wind-driven generator environment for use and condition of work.
Technical scheme of the present invention realizes in the following manner: the manufacture method of 3 megawatt aerogenerator stator coil insulation structures may further comprise the steps: 1) half-stack package corona-resistant polyimide film band on the copper strap wire; 2) half-stack package one deck single face reinforcement low resin mica tape; 3) half-stack package one deck corona-resistant polyimide film band; 4) half-stack package one deck single face reinforcement low resin mica tape; 5) half-stack package one deck corona-resistant polyimide film band; 6) half-stack package one deck teflin tape; 7) flat bag one deck alkali-free glass fibre band; It is characterized in that:
1), half-stack package corona-resistant polyimide film band on the copper strap wire: at the outside of stator coil corona-resistant polyimide film-F46 laminated film sintering copper flat wire half-stack package one deck 0.025mm corona-resistant polyimide film band;
2), half-stack package one deck single face reinforcement low resin mica tape: half-stack package one deck 0.11mm corona-resistant polyimide film single face reinforcement low resin mica tape on step 1);
3) half-stack package one deck 0.025mm corona-resistant polyimide film band, half-stack package one deck corona-resistant polyimide film band: in step 2);
4), half-stack package one deck single face reinforcement low resin mica tape: at the homemade corona-resistant polyimide film single face of step 3) half-stack package one deck 0.11mm reinforcement low resin mica tape;
5), half-stack package one deck corona-resistant polyimide film band: the homemade corona-resistant polyimide film band of half-stack package one deck 0.025mm on step 4);
6), half-stack package one deck teflin tape: the teflin tape that half-stack package one deck 0.05mm activation processing is crossed on step 5);
7), flat bag one deck alkali-free glass fibre band: the flat bag of step 6) outermost one deck 0.1mm electrician with alkali-free glass fibre band ET100.
The present invention, insulation thickness is thin, and turn-to-turn insulation thickness reduces to 0.21mm by 0.40mm, and insulation against ground thickness reduces to 1.70mm by 1.84mm, the thermal endurance class of insulation is brought up to 200 grades by the F level, realizes miniaturization and or keeps the same volume and weight of motor just can increase the power of motor.Price of the present invention has only 1/3rd of import corona-resistant polyimide film band, and is applied widely.The present invention can be used on the stator coil of stator coil, oil drilling motor and oil recovery motor, main-line locomotive, motor train unit traction motor of the double-fed and direct-driving type wind power generation machine of 3 megawatts.
Description of drawings
Fig. 1 is the schematic diagram of the embodiment of the invention 1.
Numerical chracter is described as follows among the figure:
(a+0.21) be the thickness after the copper strap wire insulation;
(b+0.21) be the width after the copper strap wire insulation;
(b+0.21)+1.70 be the width after the coil insulation;
6 (b+0.21)+1.70 are the height after the coil insulation;
6 constitute for coil has the film sintered copper strap wire of 6 circles;
1.70 be coil insulation against ground thickness.
Embodiment
Embodiment 1:
The manufacture method of 3 megawatt aerogenerator stator coil insulation structures may further comprise the steps:
Know by Fig. 1, at the homemade corona-resistant polyimide film band 2 of the outside of the homemade corona-resistant polyimide film of stator coil-F46 laminated film sintering copper flat wire 1 half-stack package one deck 0.025mm, the homemade corona-resistant polyimide film single face of half-stack package one deck 0.11mm reinforcement low resin mica tape 3 thereon again; The homemade corona-resistant polyimide film band 2 of half-stack package one deck 0.025mm thereon again; The homemade corona-resistant polyimide film single face of half-stack package one deck 0.11mm reinforcement low resin mica tape 3 thereon again; The homemade corona-resistant polyimide film band 2 of half-stack package one deck 0.025mm thereon again; The teflin tape 4 crossed of half-stack package one deck 0.05mm activation processing thereon again; The flat bag of outermost one deck 0.1mm electrician is with alkali-free glass fibre band ET1005.
3 megawatt aerogenerator stator coil insulation structures of the present invention can satisfy the comprehensive function of above these factors, and higher margin of safety is arranged after vacuum pressure impregnation.The turn-to-turn insulation of stator coil is selected for use has the very insulation of high electrical property and mechanical performance, the homemade corona-resistant polyimide film that again have the very high anti-corona ability-F46 laminated film sintered electromagnetic wire of insulation thermal endurance class up to 200 grades itself, not in additional other insulation.
The insulation against ground of coil adopts homemade corona-resistant polyimide film and homemade corona-resistant polyimide film single face reinforcement low resin mica tape to replace wrapped to coil.For resisting in salt air corrosion and the running environment other chemical substances to the erosion of coil insulation, the teflin tape of the activated processing of half-stack package one deck again in coil outside, the present invention, insulation thickness is thin, and the 0.70mm when being insulated as the coil electromagnetism line by mica tape reduces to 0.21mm; The margin of safety that the 1.84mm that the insulation against ground thickness of coil has full mica tape to be is reduced to 1.70mm. coil electric intensity is more than 10 times.The present invention adopts the polytetrafluoroethylene film band half-stack package of activated processing in the outside of insulation against ground, and moisture proof effectively, anti salt spray corrosion and other chemical substances are to the erosion of insulation, to improve the reliability of operation and the useful life of motor.
Claims (1)
1), half-stack package corona-resistant polyimide film band on the copper strap wire 1. the manufacture method of 3 megawatt aerogenerator stator coil insulation structures may further comprise the steps:; 2), half-stack package one deck single face reinforcement low resin mica tape; 3), half-stack package one deck corona-resistant polyimide film band; 4), half-stack package one deck single face reinforcement low resin mica tape; 5), half-stack package one deck corona-resistant polyimide film band; 6), half-stack package one deck teflin tape; 7), flat bag one deck alkali-free glass fibre band; It is characterized in that:
1), half-stack package corona-resistant polyimide film band on the copper strap wire, at the outside of stator coil corona-resistant polyimide film-F46 laminated film sintering copper flat wire half-stack package one deck 0.025mm corona-resistant polyimide film band;
2), half-stack package one deck single face reinforcement low resin mica tape, half-stack package one deck 0.11mm corona-resistant polyimide film single face reinforcement low resin mica tape on step 1);
3), half-stack package one deck corona-resistant polyimide film band, in step 2) half-stack package one deck 0.025mm corona-resistant polyimide film band;
4), half-stack package one deck single face reinforcement low resin mica tape, at the homemade corona-resistant polyimide film single face of step 3) half-stack package one deck 0.11mm reinforcement low resin mica tape;
5), half-stack package one deck corona-resistant polyimide film band, the homemade corona-resistant polyimide film band of half-stack package one deck 0.025mm on step 4);
6), half-stack package one deck teflin tape, the teflin tape that half-stack package one deck 0.05mm activation processing is crossed on step 5);
7), flat bag one deck alkali-free glass fibre band, the flat bag of step 6) outermost one deck 0.1mm electrician with alkali-free glass fibre band ET100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110128511A CN102185439B (en) | 2011-05-18 | 2011-05-18 | Manufacturing method of insulation structure of 3 megawatt wind driven generator stator coil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110128511A CN102185439B (en) | 2011-05-18 | 2011-05-18 | Manufacturing method of insulation structure of 3 megawatt wind driven generator stator coil |
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| CN102185439A true CN102185439A (en) | 2011-09-14 |
| CN102185439B CN102185439B (en) | 2012-10-03 |
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| CN201110128511A Expired - Fee Related CN102185439B (en) | 2011-05-18 | 2011-05-18 | Manufacturing method of insulation structure of 3 megawatt wind driven generator stator coil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117629A (en) * | 2013-03-20 | 2013-05-22 | 株洲南车机电科技有限公司 | Producing method and structure of insulation structure of long primary linear motor for urban rail vehicle |
| CN106329784A (en) * | 2016-08-31 | 2017-01-11 | 江苏申港电磁线有限公司 | 2.5MW direct-driven wind turbine generator inner stator coil and manufacturing method thereof |
| CN108832746A (en) * | 2018-09-05 | 2018-11-16 | 中国长江动力集团有限公司 | Turn-to-turn insulation single-turn circular coil and rotor windings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833354A (en) * | 1988-06-13 | 1989-05-23 | Trw Inc. | Oil-filled submergible electric pump motor with unvarnished stator structure |
| CN101383198A (en) * | 2008-10-20 | 2009-03-11 | 株洲时代新材料科技股份有限公司 | Polyimide film sintered powder mica bend coated flat copper cord and manufacturing process thereof |
| CN201230238Y (en) * | 2008-06-27 | 2009-04-29 | 江苏申港电磁线有限公司 | Stator winding wire for one-time molding three layers of thin film package wind power generator |
| CN102034569A (en) * | 2009-09-30 | 2011-04-27 | 江苏迅达电磁线有限公司 | Mica tape covered film clad flat copper wire and processing technology thereof |
-
2011
- 2011-05-18 CN CN201110128511A patent/CN102185439B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833354A (en) * | 1988-06-13 | 1989-05-23 | Trw Inc. | Oil-filled submergible electric pump motor with unvarnished stator structure |
| CN201230238Y (en) * | 2008-06-27 | 2009-04-29 | 江苏申港电磁线有限公司 | Stator winding wire for one-time molding three layers of thin film package wind power generator |
| CN101383198A (en) * | 2008-10-20 | 2009-03-11 | 株洲时代新材料科技股份有限公司 | Polyimide film sintered powder mica bend coated flat copper cord and manufacturing process thereof |
| CN102034569A (en) * | 2009-09-30 | 2011-04-27 | 江苏迅达电磁线有限公司 | Mica tape covered film clad flat copper wire and processing technology thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117629A (en) * | 2013-03-20 | 2013-05-22 | 株洲南车机电科技有限公司 | Producing method and structure of insulation structure of long primary linear motor for urban rail vehicle |
| CN103117629B (en) * | 2013-03-20 | 2015-07-08 | 株洲南车机电科技有限公司 | Producing method and structure of insulation structure of long primary linear motor for urban rail vehicle |
| CN106329784A (en) * | 2016-08-31 | 2017-01-11 | 江苏申港电磁线有限公司 | 2.5MW direct-driven wind turbine generator inner stator coil and manufacturing method thereof |
| CN106329784B (en) * | 2016-08-31 | 2019-08-20 | 江苏申港电磁线有限公司 | 2.5MW direct wind-driven generator inner stator coil and its manufacturing method |
| CN108832746A (en) * | 2018-09-05 | 2018-11-16 | 中国长江动力集团有限公司 | Turn-to-turn insulation single-turn circular coil and rotor windings |
| CN108832746B (en) * | 2018-09-05 | 2024-01-26 | 中国长江动力集团有限公司 | Inter-turn insulating single-turn coil and rotor winding |
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| Publication number | Publication date |
|---|---|
| CN102185439B (en) | 2012-10-03 |
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Granted publication date: 20121003 Termination date: 20160518 |