CN2737050Y - Fractional slot fractional turn three-phase lap winding - Google Patents
Fractional slot fractional turn three-phase lap winding Download PDFInfo
- Publication number
- CN2737050Y CN2737050Y CN 200420111165 CN200420111165U CN2737050Y CN 2737050 Y CN2737050 Y CN 2737050Y CN 200420111165 CN200420111165 CN 200420111165 CN 200420111165 U CN200420111165 U CN 200420111165U CN 2737050 Y CN2737050 Y CN 2737050Y
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- Prior art keywords
- winding
- phase
- fractional
- power generator
- utility
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a fractional slot fractional turn three-phase lap winding. The utility model is characterized in that the lap winding is adopted in the three-phase alternating current winding being fraction of the number of slots of each pole and each phase; the winding is in equidistant type, but the average number of turns is fraction. The utility model brings convenience for the optimization of winding, and makes full use of the potential of the electric machine, having the advantages of good voltage waveform of the power generator, small transient voltage regulation rate, small magnetomotive harmonic wave, small electric potential harmonic wave and easy control of the phase voltage waveform deviation rate of the power generator within 2%, and being an effective approach for improving the existing intermediate frequency power generator and designing the new product of the intermediate frequency power generator of high performance.
Description
Technical field
The utility model relates to a kind of intermediate frequency generator three phase windings, particularly a kind of fractional-slot fractional turns three-phase winding that changes.
Background technology
Often number of poles is many for intermediate frequency generator or intermediate frequency motor, and the groove number is few, and every extremely every phase groove number generally is a mark, is not wait the equidistant design difficulty of circle big for the positive chorded winding of fractional-slot concentric type, and the number of turn is not easy to adjust, and technology realizes pretty troublesome.
Summary of the invention
The purpose of this utility model is exactly, and a kind of fractional-slot fractional turns three-phase winding that changes is provided, and adjusts for design and process implementing brings very big facility.
The utility model is achieved like this is in the three-phase alternating current winding of mark at every extremely every phase groove number, adopts the lap winding type winding, and this winding is equidistant formula, but mean turn is a mark.
The utility model is convenient to the optimization of winding, make the good voltage waveform of generator, the transient voltage regulation is little, the potentiality of motor have been made full use of, make the harmonics of magnetic force little simultaneously, the electromotive force harmonic wave is little, and the voltage-form distortion rate of generator is controlled in 2% easily, is to existing intermediate frequency generator improvement in performance and design high-performance intermediate frequency generator new product effective means.
Description of drawings
Fig. 1 is a layout plan of the present utility model.
Embodiment
As shown in Figure 1, A, B, C are three-phase symmetric windings, 120 ° of electrical degrees of mutual deviation, and number of turn assignment order three-phase all is identical, also is that B phase, C phase number of turn assignment order are with the identical ordering of A.Wherein A is arranged as 1-4 mutually, and 13-16,17-20,18-21,25-28,37-40,41-2,42-3 be totally 8 circles, and every circle number of turn is 4 circles, and 2-5,7-10,12-15,26-29,31-34,36-39 be totally 6 circles, and every circle number of turn is 5 circles.The B mutually 120 ° of electrical degrees of A that lag behind mutually, the C mutually 120 ° of electrical degrees of B that lag behind mutually, A, B, C three are in 120 ° of electrical degrees, constitute the three-phase symmetrical system, and 6 go out wire size is that the 1st groove is A, the 8th groove is B, the 15th groove is C, and the 27th groove is Y, and the 34th groove is Z, the 41st groove is X, and number of turn wiring rule B phase, C are mutually the same with A.This winding that changes is implemented in double frequency/frequency conversion, intermediate frequency three-phase 10KW brushless electric machine, and the result makes the former transient voltage regulation that waits the circle motor that is designed to 5 circles reduce by 20%.The line voltage of output voltage and phase voltage waveform distortion are solved this binomial important performance indexes of intermediate frequency generator and technical barrier all less than 2%.
Claims (1)
1, a kind of fractional-slot fractional turns three-phase winding that changes is characterized in that at every utmost point, every phase groove number be in the three-phase alternating current winding of mark, adopts the lap winding type winding, and winding is equidistant formula, but mean turn is a mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420111165 CN2737050Y (en) | 2004-10-26 | 2004-10-26 | Fractional slot fractional turn three-phase lap winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420111165 CN2737050Y (en) | 2004-10-26 | 2004-10-26 | Fractional slot fractional turn three-phase lap winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2737050Y true CN2737050Y (en) | 2005-10-26 |
Family
ID=35307776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420111165 Expired - Fee Related CN2737050Y (en) | 2004-10-26 | 2004-10-26 | Fractional slot fractional turn three-phase lap winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2737050Y (en) |
-
2004
- 2004-10-26 CN CN 200420111165 patent/CN2737050Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |