CN102064649B - Three-phase rare-earth permanent magnet fractional slot concentrated winding synchronous generator - Google Patents
Three-phase rare-earth permanent magnet fractional slot concentrated winding synchronous generator Download PDFInfo
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- CN102064649B CN102064649B CN 201010622256 CN201010622256A CN102064649B CN 102064649 B CN102064649 B CN 102064649B CN 201010622256 CN201010622256 CN 201010622256 CN 201010622256 A CN201010622256 A CN 201010622256A CN 102064649 B CN102064649 B CN 102064649B
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- stator
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- permanent magnet
- earth permanent
- phase
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- 238000004804 winding Methods 0.000 title claims abstract description 38
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 19
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 19
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000012141 concentrate Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The invention discloses a three-phase rare-earth permanent magnet fractional slot concentrated winding synchronous generator which is internally provided with a stator and externally provided with a rotor, wherein the stator is formed by the method that a fan-shaped stator piece unit of 120 degrees is used as a phase, three stator piece units are transversely spliced into a round stator piece, and a plurality of stator pieces are longitudinally superposed together and fixed on a stator iron core; a fractional slot concentrated winding method is used for the stator pieces, and in the method, the number Z of slots processed on the stator piece units conforms to a formula Z=2P+/-T, wherein 2P is a pole number, and T is the winding quantity on each phase; the concentrated parts of the slots are provided with windings, and coils are wound between adjacent slots of the same winding; and the windings are mutually connected by connecting lines. The three-phase rare-earth permanent magnet fractional slot concentrated winding synchronous generator has the advantages of light weight of a motor, small size, small running noise and good output stability.
Description
Technical field
The present invention relates to a kind of generator techniques, particularly a kind of three-phase rare-earth permanent magnet fractional slot is concentrated winding synchronous generator.
Background technology
World today's energy supply growing tension, can save the energy about 20% than traditional electrical excitation generator during rare earth permanent-magnetic generator band resistive load, can save the energy 50% during the band inductive load, but this huge advantage can not get fully playing owing to be subjected to the restriction of the factors such as the large and operational reliability of cost high voltage fluctuation is poor.
Applied rare earth permanent-magnetic generator adopts the separate slot winding mode more in the market, and it is not expensive very large but also voltage output is also very unstable that this sample loading mode not only expends a large amount of copper cash energy utilization rates, and impact is used normally.
Summary of the invention
To the objective of the invention is in order addressing the above problem, to have designed a kind of three-phase rare-earth permanent magnet fractional slot and concentrated winding synchronous generator.
Realize that above-mentioned purpose technical scheme of the present invention is, a kind of three-phase rare-earth permanent magnet fractional slot is concentrated winding synchronous generator, inside is that stator, outside are rotor, stator is that the stator piece unit of fan-like patterns with 120 degree is as a phase, the stator piece that is spliced into a circle of three stator piece unit transverses, a plurality of stator pieces vertically are superimposed to be fixed on the stator core and jointly consist of; Adopt fractional-slot to concentrate method of winding on the stator piece, the method is that the wire casing processed on the stator piece unit is counted Z and met relational expression Z=2P ± T, wherein 2P is number of poles, T is every winding quantity that goes up mutually, wire casing concentrates the place to be winding, coiling between the adjacent wire casing of same winding connects with connecting line between winding and the winding.
It is proper fraction that the groove of above-mentioned every extremely every phase is counted q, and namely q=Z/2MP is proper fraction, and wherein Z is the wire casing number, and M is the number of phases, and 2P is number of poles, and the stable phase of voltage improves greatly.
The material of above-mentioned rotor can be electrical pure iron, and at rotor high performance rare-earth permanent magnet is installed.
Particularly an end of rotor can connect power-equipment, drives its rotation, is fit to and multiple environment and power-equipment.
The present invention compared with prior art has following beneficial effect: (1) adopts fractional-slot to concentrate method of winding to save a large amount of copper cash; (2) because resistance is low, the conversion ratio of the energy has improved greatly; (3) Voltage-output is stable, and sinusoidal performance is splendid, and the aberration rate of potential waveform is less than 2%; (4) the applicable scope of the design of this generator is wide, not only can be applicable to small generator and can also be generalized to high-rating generator.(5) noise of this generator is little, stationarity good, overload capacity is large.
Description of drawings
Fig. 1 is the structural representation that three-phase rare-earth permanent magnet fractional slot of the present invention is concentrated winding synchronous generator;
Fig. 2 is the structure chart that the described three-phase rare-earth permanent magnet fractional slot of this Fig. 1 is concentrated the stator piece of winding synchronous generator;
Among the figure, 1, stator; 2, rotor; 3, stator piece unit; 4, stator piece; 5, stator core; 6, winding; 7, coil; 8, connecting line; 9, rare-earth permanent magnet.
Embodiment
For ease of the understanding of technical solution of the present invention, be introduced below in conjunction with concrete execution mode.As Fig. 1 and shown in, fixed installation rare-earth permanent magnet 9 produces magnetic field on the rotor 2, stator 1 is fixed motionless by stator core 5 when rotor rotates, by electromagnetic induction principle as can be known, be in coil 7 on the stator in the rotor field and move cutting magnetic induction line with respect to magnetic field and produce electromotive force, near and generation current.
As shown in Figure 2, stator piece 4 is stator piece unit 3 horizontal being spliced into by the fan-like pattern of 3 120 degree, and a stator piece unit just is a phase.The wire casing of processing on the stator piece unit is counted Z and is met relational expression Z=2P ± T, and wherein 2P is number of poles, and T is every winding quantity that goes up mutually, and wire casing concentrates the place to be winding 6, and coiling between the adjacent wire casing of same winding connects with connecting line 8 between winding and the winding.
Technique scheme has only embodied the optimal technical scheme of technical solution of the present invention, and some changes that those skilled in the art may make some part have wherein all embodied the principle that this practicality invented, and belong within protection scope of the present invention.
Claims (4)
1. a three-phase rare-earth permanent magnet fractional slot is concentrated winding synchronous generator, inside is that stator (1), outside are rotor (2), it is characterized in that, with the stator piece unit (3) of fan-like patterns of 120 degree as a phase, the stator piece that is spliced into a circle (4) of three stator piece unit transverses, a plurality of stator pieces vertically are superimposed and are fixed on the upper common stator that consists of of stator core (5); Adopt fractional-slot to concentrate method of winding on the stator piece, the method is that the wire casing processed on the stator piece unit is counted Z and met relational expression Z=2P
+T, wherein 2P is number of poles, and T is every winding quantity that goes up mutually, and wire casing concentrates the place to be winding (6), and coiling (7) between the adjacent wire casing of same winding connects with connecting line (8) between winding and the winding.
2. three-phase rare-earth permanent magnet fractional slot according to claim 1 is concentrated winding synchronous generator, it is characterized in that it is proper fraction that the groove of every extremely every phase is counted q, and namely q=Z/2MP is proper fraction, and wherein Z is the wire casing number, and M is the number of phases, and 2P is number of poles.
3. three-phase rare-earth permanent magnet fractional slot according to claim 1 is concentrated winding synchronous generator, it is characterized in that the material of rotor is electrical pure iron, and rare-earth permanent magnet (9) is installed on the rotor.
4. three-phase rare-earth permanent magnet fractional slot according to claim 1 is concentrated winding synchronous generator, it is characterized in that, an end of rotor connects power-equipment, drives its rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010622256 CN102064649B (en) | 2010-12-27 | 2010-12-27 | Three-phase rare-earth permanent magnet fractional slot concentrated winding synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010622256 CN102064649B (en) | 2010-12-27 | 2010-12-27 | Three-phase rare-earth permanent magnet fractional slot concentrated winding synchronous generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102064649A CN102064649A (en) | 2011-05-18 |
| CN102064649B true CN102064649B (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010622256 Expired - Fee Related CN102064649B (en) | 2010-12-27 | 2010-12-27 | Three-phase rare-earth permanent magnet fractional slot concentrated winding synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102064649B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101689774A (en) * | 2007-06-25 | 2010-03-31 | 罗伯特.博世有限公司 | synchronous motor having 12 stator teeth and 10 rotor poles |
| CN101154836B (en) * | 2006-09-28 | 2010-12-08 | 株式会社日立制作所 | Rotating electrical machine and alternating-current generator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6759780B2 (en) * | 2001-05-08 | 2004-07-06 | Delphi Technologies, Inc. | Fractional-slot winding motor |
| US7652404B2 (en) * | 2007-05-31 | 2010-01-26 | General Electric Company | Synchronous reluctance machine |
-
2010
- 2010-12-27 CN CN 201010622256 patent/CN102064649B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154836B (en) * | 2006-09-28 | 2010-12-08 | 株式会社日立制作所 | Rotating electrical machine and alternating-current generator |
| CN101689774A (en) * | 2007-06-25 | 2010-03-31 | 罗伯特.博世有限公司 | synchronous motor having 12 stator teeth and 10 rotor poles |
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| Publication number | Publication date |
|---|---|
| CN102064649A (en) | 2011-05-18 |
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