CN102611230A - Improved direct drive generator stator centralized double-winding coil - Google Patents
Improved direct drive generator stator centralized double-winding coil Download PDFInfo
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- CN102611230A CN102611230A CN2012100835628A CN201210083562A CN102611230A CN 102611230 A CN102611230 A CN 102611230A CN 2012100835628 A CN2012100835628 A CN 2012100835628A CN 201210083562 A CN201210083562 A CN 201210083562A CN 102611230 A CN102611230 A CN 102611230A
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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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- Windings For Motors And Generators (AREA)
Abstract
The invention discloses an improved direct drive generator stator centralized double-winding coil which comprises two adjacent groups of coils. One group of the coil is provided with an incoming line free terminal, and the other group of the coil is provided with an outgoing line free terminal; the group of the coils provided with the incoming line free terminal comprises a plurality of turns which are coiled from the bottom layer to the surface layer in the clockwise direction from the incoming line free terminal; the outgoing line of the surface layer is bent for the width of a group of coil anticlockwise and then is served as an incoming line of the surface layer; the group of the coil provided with the outgoing line free terminal comprises a plurality of turns which are coiled from the surface layer to the bottom layer in the counter clockwise direction from the incoming line of the surface layer; and the outgoing line of the bottom layer is served as the incoming line free terminal. By changing the single-winding structure of the stator winding into a double-winding structure, adjacent windings are not required to be connected through a conducting wire, not only the work load of the connecting conducting wire is greatly reduced, but also no connector exists between the two coils, so that the operation reliability is improved.
Description
Technical field
What the present invention relates to that generator makes the field directly drives the generator unit stator winding, and especially a kind of improved generator unit stator that directly drives is concentrated the double winding coil.
Background technology
Direct-drive permanent magnet wind power generator, because of having omitted the relatively large step-up gear of fault and the advantage of epitrochanterian slip ring, in wind power generation, promoting gradually becomes leading products; Directly drive generator unit stator and can adopt distributed winding or concentrated winding construction, in fact since wind speed in continuous variation, so its frequency of sending and voltage are unsettled; Need to guarantee the stability of output frequency and voltage, satisfy the condition of online through behind the ac-dc-ac inverter; Yet frequency converter can be directed at the generation high-frequency impulse when work; This high-frequency impulse will be induced to stator coil, can make stator winding produce kelvin effect, and the current density of stator winding is improved; Thereby the raising electric machine temperature rise causes output of a generator not enough.Take stranded conductor to be woven into strand at present and turn to coil,, improve conductor efficiency to reduce kelvin effect.Owing to directly drive the variation of generator output voltage and frequency, in order to satisfy the requirement of being incorporated into the power networks, the novel direct drive wind-driven generator has elected that few groove is multipole, the generator of multi-parallel branch road as, and stator coil adopts concentrates the winding composition.
The external low voltage generator concentrated winding stator coil that adopts; Because its conductor cross-section is bigger, directly drive generator unit stator winding system by 600 to more than 700 very the transposition enamelled wire braiding of minor diameter be pressed into square, turn to multiturn multi-in-line circle again; So only be designed to unicoil; Each coil all need connect on request, and coil connectors is many like this, the wiring workload is big one times; And very easily causing defectives such as the missing of fine rule in the multiply winding, broken string or rosin joint, the inspection after the wiring simultaneously is difficulty very also.
Summary of the invention
The present invention is directed to above-mentioned technical problem, provide a kind of very big reduction coil to connect workload, increase work efficiency and the improved generator unit stator that directly drives of reliability is concentrated the double winding coil.
The present invention is for realizing above-mentioned purpose; Following technical scheme is provided: a kind of improved generator unit stator that directly drives is concentrated the double winding coil; It is characterized in that comprising two groups of adjacent coils, one group of coil is brought the line free end into, and another group coil is taken the line free end out of; Bringing the free-ended one group of coil of line into is made up of to some circles of surface layer coiling from bottom the inlet wire free end along clockwise direction; Its surface layer outlet counterclockwise behind one group of coil width of bending as the surface layer inlet wire of taking line free end coil out of, said take out of the free-ended coil of line by the surface layer inlet wire along counterclockwise forming to some circles of bottom coiling from surface layer, its bottom outlet is the outlet free end.
As further improvement of the present invention, coil is the coiling article after the braiding of more than 600 transposition enamelled wire is pressed into square.
As of the present invention preferred, two groups of adjacent coils constitute the angle of 2-5 degree, guarantee in two groups of easier embedding stator core slots of the huge shape coil of circle arranged side by side through this kind is preferred.
As further improvement of the present invention, inlet wire free end and outlet free end lay respectively at the bottom of two groups of coils and are arranged on the same side, thereby away from rotor, avoid and friction rotor, effectively prevent the generation of fault.
The present invention concentrates the double winding coil for the improved generator unit stator that directly drives, and through adjacent two coils being carried out continuous coiling, constitutes the double winding coil; Require two coil windings in the opposite direction in this double winding coil; Consistent in order to guarantee with the sense of current of same groove, and coil need change double-winding structure into through the simplex winding with stator winding by the requirement arrangement of electrical degree; Thereby making adjacent winding not need to carry out lead connects again; Not only greatly reduce the workload that connects lead, and owing to do not have joint between two coils, thereby reliability of operation improved.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the end view of Fig. 1.
Embodiment
A kind of improved generator unit stator that directly drives is concentrated the double winding coil; Comprise adjacent two groups of coils (3,4); One group of coil 3 is brought line free end 1 into; Another group coil 4 is taken line free end 2 out of; Bring one group of coil of line free end 1 into and form to some circles of surface layer coiling from bottom along clockwise direction by inlet wire free end 1, its surface layer outlet counterclockwise behind one group of coil width of bending as the surface layer inlet wire of taking line free end coil 4 out of, the said coil 4 of taking line free end 2 out of by the surface layer inlet wire along counterclockwise forming to some circles of bottom coiling from surface layer; Its bottom outlet is an outlet free end 2; Inlet wire free end 1 lays respectively at the bottom of two groups of coils (3,4) and is arranged on the same side with outlet free end 2, and coil is the coiling article after the braiding of more than 600 transposition enamelled wire is pressed into square, and adjacent two groups of coils (3,4) constitute the angle of 2-5 degree.
Claims (4)
1. the improved generator unit stator that directly drives is concentrated the double winding coil; It is characterized in that comprising two groups of adjacent coils; One group of coil is brought the line free end into; Another group coil is taken the line free end out of, bring the free-ended one group of coil of line into and form to some circles of surface layer coiling from bottom along clockwise direction by the inlet wire free end, its surface layer outlet counterclockwise behind one group of coil width of bending conduct take the surface layer inlet wire of line free end coil out of; The said free-ended coil of line of taking out of is made up of to some circles of bottom coiling from surface layer along counter clockwise direction the surface layer inlet wire, and its bottom outlet is the outlet free end.
2. a kind of improved generator unit stator that directly drives according to claim 1 is concentrated the double winding coil, it is characterized in that coil is the coiling article after the braiding of more than 600 transposition enamelled wire is pressed into square.
3. a kind of improved generator unit stator that directly drives according to claim 1 is concentrated the double winding coil, it is characterized in that two groups of adjacent coils constitute the angle of 2-5 degree.
4. a kind of improved generator unit stator that directly drives according to claim 1 is concentrated the double winding coil, it is characterized in that inlet wire free end and outlet free end lay respectively at the bottom of two groups of coils and be arranged on the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100835628A CN102611230A (en) | 2012-03-27 | 2012-03-27 | Improved direct drive generator stator centralized double-winding coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100835628A CN102611230A (en) | 2012-03-27 | 2012-03-27 | Improved direct drive generator stator centralized double-winding coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102611230A true CN102611230A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100835628A Pending CN102611230A (en) | 2012-03-27 | 2012-03-27 | Improved direct drive generator stator centralized double-winding coil |
Country Status (1)
| Country | Link |
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| CN (1) | CN102611230A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393259Y (en) * | 1999-11-11 | 2000-08-23 | 华戈扬 | Double-phase driven double-winding dc. brushless electric motor |
| CN1771652A (en) * | 2003-04-10 | 2006-05-10 | 三元有限公司 | Linear electric generator with accelerating elements |
| CN201038981Y (en) * | 2007-05-18 | 2008-03-19 | 冯春国 | Stator coil structure of cylinder drive oil line motor |
| CN101394124A (en) * | 2008-11-05 | 2009-03-25 | 美的集团有限公司 | Outer rotor permanent magnet synchronous motor for ceiling fan |
| CN101447724A (en) * | 2008-12-16 | 2009-06-03 | 美的集团有限公司 | Single-phase double-winding directional running permanent magnet synchronous motor |
| CN102290890A (en) * | 2011-08-23 | 2011-12-21 | 山东大学 | Novel double-salient permanent magnet direct-drive wind driven generator |
| CN202094723U (en) * | 2010-09-30 | 2011-12-28 | 泰豪科技股份有限公司 | Fractional-slot double winding structure of servo permanent-magnet synchronous motor |
| CN202535177U (en) * | 2012-03-27 | 2012-11-14 | 国电联合动力技术(宜兴)有限公司 | Improved direct drive generator stator concentrated double winding coils |
-
2012
- 2012-03-27 CN CN2012100835628A patent/CN102611230A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393259Y (en) * | 1999-11-11 | 2000-08-23 | 华戈扬 | Double-phase driven double-winding dc. brushless electric motor |
| CN1771652A (en) * | 2003-04-10 | 2006-05-10 | 三元有限公司 | Linear electric generator with accelerating elements |
| CN201038981Y (en) * | 2007-05-18 | 2008-03-19 | 冯春国 | Stator coil structure of cylinder drive oil line motor |
| CN101394124A (en) * | 2008-11-05 | 2009-03-25 | 美的集团有限公司 | Outer rotor permanent magnet synchronous motor for ceiling fan |
| CN101447724A (en) * | 2008-12-16 | 2009-06-03 | 美的集团有限公司 | Single-phase double-winding directional running permanent magnet synchronous motor |
| CN202094723U (en) * | 2010-09-30 | 2011-12-28 | 泰豪科技股份有限公司 | Fractional-slot double winding structure of servo permanent-magnet synchronous motor |
| CN102290890A (en) * | 2011-08-23 | 2011-12-21 | 山东大学 | Novel double-salient permanent magnet direct-drive wind driven generator |
| CN202535177U (en) * | 2012-03-27 | 2012-11-14 | 国电联合动力技术(宜兴)有限公司 | Improved direct drive generator stator concentrated double winding coils |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |