CN1314186C - Proper faction groove sinusoidal winding of equidistant synchronous generator - Google Patents
Proper faction groove sinusoidal winding of equidistant synchronous generator Download PDFInfo
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- CN1314186C CN1314186C CNB01128496XA CN01128496A CN1314186C CN 1314186 C CN1314186 C CN 1314186C CN B01128496X A CNB01128496X A CN B01128496XA CN 01128496 A CN01128496 A CN 01128496A CN 1314186 C CN1314186 C CN 1314186C
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- winding
- phase
- generator
- synchronous generator
- equidistant
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Abstract
The present invention discloses an equidistant sine winding with proper fraction slots for a synchronous generator. When the slot number q of each phase of each pole of the winding is less than one, the winding can be continuously wound to form a double lapping type winding by symmetrically provided coils with different turn ratios and identical pitches of the winding. The technology of the present invention is simpler than that of a concentric type sine winding with unequal turns; the height of the waveform of the phase voltage of a generator has sinusoidal performance, and the content of harmonic waves is lower than that of harmonic waves of the concentric type double-layer sine winding with unequal turns and low harmonic wave magnetic potential; the content of harmonic waves is very low, so the present invention is easily made into a precise high-grade intermediate frequency AC power supply, so the requirement of equipment with a high electric property requirement can be met. Because q is less than one, the generator has small volume and light weight; moreover, because the equidistant sine winding with proper fraction slots for a synchronous generator enables the height of the waveform of the voltage of the intermediate frequency generator to have sinusoidal performance, the waveform distortion rates of a line voltage and the phase voltage are both less than 1%; the electrical property is excellent, which can reach the leading level in China and the international advanced level.
Description
Technical field
The present invention relates to a kind of power-supply device, especially a kind of winding of equidistant synchronous generator.
Background technology
General multipole synchronous generator factor receptor is long-pending to be limit, and every extremely every phase groove is counted q and usually got mark.And in intermediate frequency generator often q also may get mark less than 1.For example every extremely every phase groove is counted q=3/4 just less than 1, is proper faction groove.Q=3/4 proper faction groove winding is the double-deck short distance winding of equal-turn type by traditional structure, and the irregularity of wave form that this winding can't accomplish to make its line voltage and phase voltage is all less than 2% level.And line voltage and phase voltage waveform aberration rate are the specification requirements of high-quality sine-wave power less than 2% all, become a domestic industry difficult problem for a long time, thereby present situation is that particularly high-quality intermediate frequency generator power supply often needs import.
Summary of the invention
The object of the present invention is to provide a kind of winding of equidistant synchronous generator, the structure of this winding can overcome above-mentioned defective, and can make the irregularity of wave form of line voltage and phase voltage equal＜1%.
Technical scheme of the present invention is: a kind of winding of equidistant synchronous generator, every extremely every phase groove of this winding is counted q=3/4, is the proper fraction less than 1.These winding generator number of stator slots 36 grooves, number of poles is 16 utmost points, the number of phases is 3 phases, rotating speed 3000r/min, the generating voltage frequency is 400Hz.Every extremely every phase groove is counted q=3/4, and this stator winding is made of the harmonious wave winding of main winding.Main winding is a kind of equidistant formula and do not wait the winding of circle.Main winding is pressed Fig. 1 and is arranged, wherein A phase B phase C phase winding is respectively composed in parallel by 26 circle windings.Each 6 circle all is to connect under connecting middle non junction.Wherein the A phase winding is from left to right promptly from A
1-X
1-A
2-X
2The number of turn of every circle was respectively 3: 3: 3: 3: 2: 2 and 3: 3: 3: 3: 2: 2, the B phase winding was from left to right promptly from B
1-Y
1-B
2-Y
2The number of turn of every circle was respectively 3: 3: 2: 2: 3: 3 and 3: 3: 2: 2: 3: 3, the C phase winding from left to right was C
1-Z
1-C
2-Z
2The number of turn of every circle was respectively 3: 2: 3: 3: 3: 2 and 3: 2: 3: 3: 3: 2, the position of the shared groove of each phase coil as shown in Figure 1, this regulation has guaranteed 120 ° of three-phase A, B, C mutual deviations, has formed symmetrical three-phase alternating current winding.So-called positive chorded winding be the line voltage of generator and phase voltage waveform aberration rate all less than 2% o'clock, the level that requires that reaches sine wave generator is promptly thought in affiliated field.This motor windings can guarantee among this level.Because the pitch of the every circle of its three phase winding is 3, promptly as the span of A phase, the 1st to enclose be the 6th groove to the 9 grooves, i.e. 6-9, and all the other are 8-11,10-13 ... or the like, promptly pitch is 3, and B phase, C analogize mutually.This has clearly show from Fig. 1.
Since this etc. the feature of pitch, so the present invention is called a kind of winding of equidistant synchronous generator again.
Because inventing per 6 circles, this forms one, every can be only on a winding former that comprises 6 core rods coiled continuously, per 6 circles again can be continuously down in the stator slot of Fig. 1 behind the coiled, non junction in the middle of 6 circles, this technology is called and connects around connecting technology down, and this technology is simple in affiliated field, but because of non junction, so the reliability height, quality is good.Should also be noted that from Fig. 1 every phase winding parallel branch counts a=2, the switching mouth situation of each coil, and every on line circle simultaneously go out labeling head A
1, X
1It is A that this generator is connected into the external power supply of Y-O pattern
1With A
2And draw after connecing and be designated as A phase, B
1With B
2And draw after connecing and be designated as B phase, C
1With C
2And draw after connecing and be designated as the C phase, and X
1, X
2, Y
1, Y
2, Z
1, Z
2Draw after all connecting together and be designated as O.Form A, B, C, O three phase and four wire circuit system.
From the layout of Fig. 1, also determined the conductor number of the motor windings in every groove.
The invention has the advantages that:
1) realized that every extremely every phase groove counts q=3/4 proper faction groove sinusoidal winding, it is simple in structure, the technology tradition.This new construction makes its generator line voltage and phase voltage waveform aberration rate all can be less than 2% level.Thereby can make the high-quality intermediate frequency power supply.And the double-deck short distance winding of traditional equal-turn type can't reach this level.Do not wait the humorous wave winding of circle concentric type low phase belt during well-known q=3/4, because of leakage reactance does not have Practical significance too greatly.So this new construction winding has been broken through the double-deck short distance winding of equal-turn type and has not been waited the tradition of circle concentric type winding.Reached purpose of the present invention.
2), but still be two layer winding though the present invention's three phase windings are by equidistant and do not wait circle to constitute, consistent with the technology of traditional two layer winding.Implement easily economical rationality.
During 3) owing to q=3/4, adopt the present invention can make intermediate frequency generator line voltage, phase voltage waveform all highly sinusoidal, the electric property excellence.
Description of drawings
Fig. 1 is the three-phase winding coil turn ratio distribution of equidistant synchronous generator winding of the present invention and arranges schematic diagram in stator slot;
Fig. 2 is the humorous wave winding of stator of the equidistant synchronous generator winding of the present invention position view that rolls off the production line.
Embodiment
A kind of equidistant synchronous generator winding, embodiment 30KW, a phase voltage 115V, 400Hz, three-phase four-wire system, 3000r/min intermediate frequency brushless generator, the usefulness of aircraft energizer is made in AC and DC hybrid power supply.Its stator core external diameter Φ 300mm, several 36 grooves of groove, number of poles 16 utmost points, every extremely every phase q=3/4 rolls off the production line as shown in Figure 1, and subscript 2 is every circle 2 circles, and subscript 3 is every circle 3 circles, and parallel branch is counted a=2.It is such that above-mentioned coil is formed, and every phase winding is made up of two kinds of coil turns, and the turn ratio is 2: 3, and its groove span is 1-4, and promptly slot pitch is 3, constitutes jointless company around connecting time three-phase symmetric double winding that changes, and this is a kind of two layer winding.
If above-mentioned motor parallel props up way a=2 (according to different electric pressures during phase voltage 230V, a=1), when being used as the midfrequent AC power supply, phase voltage 115V, be three-phase four-wire system, the irregularity of wave form of line voltage, phase voltage is all less than 1%, and the mains ripple when being used as rectifier power source and being rectified into direct current is little, meets the requirement of the GJB GJB572 of People's Republic of China (PRC) aircraft energizer supplied character fully.
Claims (1)
1. the winding of an equidistant synchronous generator, the every extremely every phase groove number of this winding is 3/4, it is characterized in that: this winding has two kinds of number of turn coils, its turns ratio is 2/3, and the pitch of its coil is all identical, all be 3, by this turn ratio 2/3 and pitch is that 3 coil is formed three-phase symmetry two layer winding, number of stator slots is 36 grooves, and number of poles is 16 utmost points, and the number of phases is 3 phases, every extremely every phase groove number is 3/4 o'clock, the design feature of this winding is that every phase winding all is made up of two 6 turn coil, non junction in the middle of this 6 turn coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01128496XA CN1314186C (en) | 2001-09-25 | 2001-09-25 | Proper faction groove sinusoidal winding of equidistant synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01128496XA CN1314186C (en) | 2001-09-25 | 2001-09-25 | Proper faction groove sinusoidal winding of equidistant synchronous generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1409461A CN1409461A (en) | 2003-04-09 |
| CN1314186C true CN1314186C (en) | 2007-05-02 |
Family
ID=4668346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01128496XA Expired - Lifetime CN1314186C (en) | 2001-09-25 | 2001-09-25 | Proper faction groove sinusoidal winding of equidistant synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1314186C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944812A (en) * | 2010-09-30 | 2011-01-12 | 泰豪科技股份有限公司 | Duplex winding structure with fractional slots of servo permanent magnet synchronous motor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262151B (en) * | 2005-08-31 | 2010-06-23 | 北京中科三环高技术股份有限公司 | Score slot coil unit for low-speed high torque permanent magnetic brushless electromotor |
| CN100405704C (en) * | 2005-08-31 | 2008-07-23 | 北京中科三环高技术股份有限公司 | Fractional slot winding for slow-run large torque moment permanent-magnet brushless motor |
| CN102522843B (en) * | 2011-11-25 | 2013-10-09 | 福建鑫旺电机集团有限公司 | Arrangement method for number of distribution slots in single-phase, three-phase motor fractional-slot windings |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07143697A (en) * | 1993-11-17 | 1995-06-02 | Toshiba Corp | Three-phase armature winding |
| JPH10112948A (en) * | 1996-10-03 | 1998-04-28 | Toshiba Corp | Bipolar armature winding of rotating electric machine and its manufacture |
| DE19853966A1 (en) * | 1998-11-23 | 2000-05-31 | Siemens Ag | Electrical machine stator winding e.g. for six-pole servomotor |
-
2001
- 2001-09-25 CN CNB01128496XA patent/CN1314186C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07143697A (en) * | 1993-11-17 | 1995-06-02 | Toshiba Corp | Three-phase armature winding |
| JPH10112948A (en) * | 1996-10-03 | 1998-04-28 | Toshiba Corp | Bipolar armature winding of rotating electric machine and its manufacture |
| DE19853966A1 (en) * | 1998-11-23 | 2000-05-31 | Siemens Ag | Electrical machine stator winding e.g. for six-pole servomotor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944812A (en) * | 2010-09-30 | 2011-01-12 | 泰豪科技股份有限公司 | Duplex winding structure with fractional slots of servo permanent magnet synchronous motor |
| CN101944812B (en) * | 2010-09-30 | 2012-03-14 | 泰豪科技股份有限公司 | Duplex winding structure with fractional slots of servo permanent magnet synchronous motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1409461A (en) | 2003-04-09 |
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Granted publication date: 20070502 |