SU1403235A1 - Three-phase/four-phase combination electric machine winding - Google Patents

Abstract

The invention relates to the field of windings of brushless electric machines of alternating current of the combined type with two polarized magnetic fields in a common magnetic circuit. The purpose of the invention is to expand the field of application of the winding by obtaining the polarity p, / p 8/6, 16/6, 16/18. The winding is made of forty-eight evenly displaced coils and connected into four parallel three-phase stars, the beginnings of which form three-phase clamps C ,, Cj, Cj for polarity p, and the leads from their zero points form additional four-phase clamps for polarity p. In order to obtain p, / p 8/6 in each star, four coils with numbers in phase C are connected in series, for the first star, +1, -4, -f25, -8, where plus or minus means consonant or counter-switching of the coil in the star. For each subsequent star of phase C., the numbers of the coils alternate with respect to the previous star with an interval of six coils, for phases Ci and Cj the numbers of coils of the stars of each subsequent phase alternate with respect to the stars of the previous phase with an interval of eight coasters. The coil pitch in phases is equal to y „t, 4-1, where“ 1, is the pole division for polarity p. To get p, / p 16/6 numbers of coils + 1, +10, +25, +34, and y 3 hours,. To get p, / Pi 16/18 numbers of coils H-1, +4, +25, +28, and y ,. Зз.п. f-ly, 9 silt, 1 tab. i SP C

Description

4 О 00 1ЧЭ СО ate

The invention relates to windings of alternating-current electrical machines of the combined type with two opposite-pole magnetic fields in a common magnetic core.

The purpose of the invention is to expand the field of application of the winding by obtaining the polarity p, / Pr 8/6, 16/6, 16/18.

FIG. 1 shows a winding circuit with Pi / Pi 8/6; in fig. 2 and 3 are its EMF diagrams for polarities p, 8 and p 6, respectively; in fig. 4-6 is the same as in FIG. 1-3, but for winding with Pi / wg 16/6; in fig. 7-9 - the same for winding with p, / rg 16/18.

The winding (FIGS. 1, 4, 7) is made single-layer in 96 slots of forty-eight coils (with numbers from 1 to 48) with a step along the grooves y, for FIG. 1, UP 3, 9 for FIG. 4, y „fi 3 for FIG. 7, where C, is the pole division for polarity p ,. Omagh

connected in four parallel three-phase stars, the beginnings of which form m, 3-phase terminals. We C, C, C for polarity, p, and the outputs from their zero points are additional I; 4-phase clamps for polarity, A, B, C , D. In each star four coils with numbers in phase C are connected in series, for the first star + 1, K, +25. M, where K-4 and M-28 at 8/6, K +10 and M +34 at Pi / Pz 16/6, K +4 and A4 +28 at p, / rg 16/18, where the signs "plus or “minus” means consonant or counter inclusion of a coil in a star. For each subsequent star of the phase Ci, the numbers of the coils alternate with respect to the previous star with an interval of 6 coils; for phases Cj. and C coil numbers for the stars of each subsequent phase alternate with respect to the stars of the previous phase with an interval of 8 coils (see table):

R, / p, 8/6

C, 1, -4.25, -287, -10.31, -3413, -16.37, -4019, -22.43, -46

C 9, -12,33-3615, -18,39-42,21, -24,45, -4827, -30,3, -6

Cj17, -20,41-4423, -26,47, -229, -32.5, -835, -38.11, -l4

P, /Pj.16/6

C, 1,10,25,347,16,31,4013,22,37,4619,28,43,4

C, 9,18,33,4215,24,39,4821,30,45,627,36,3,12

Sz17,26,41,223,32,47,829,38,5,1435,44,11,20

P, / Pr 1b / 18

Ci1,4,25,28

7,10,31,3413,16,37,40 19,22,43,46

WITH,

9,12,33,3615,18,39,42 21,24,45,48 27,30,3,6

, 20,41,44 23,26,47,2 29,32,5,8

The upper row of arrows in FIG. I, 4, 7 shows the directions of the three-phase current when the winding is fed through C, C, Cj, and the lower pd shows the directions of the four-phase current when the winding is fed through A, B, C, D. In FIG. 2 and 3, 5 and 6, 8 and 9 EMF vectors are assigned coil numbers, from which it is clear that the field with plyness p, does not induce EMF and terminals A, B, C, D (Figs. 2, 5, 8), and the field with PJ pole does not induce EMF on terminals C ,, Cj, Cj (Figs. 3, 6, 9), i.e., 35, 38, 11, 14

pole terminals of the winding are electromagnetically independent and, therefore, equalizing currents in it do not flow. Winding factors are: For FIG. 1 - К, (, 0.966 and К „5, 0.906; for Fig. 4 - К„, 4 1.0 and 0.906; for Fig. 7 - Coy. 1.0 and K, (, 0.906.

In comparison with the known winding, the proposed winding has expanded values of the numbers of pole pairs. It can be used, for example, in single-machine conversions.

frequency and number of phase drivers, in contactless combined dual-power machines and other electromagnetic devices with two polarized magnetic fields combined in a common magnetic conductor.

Claims (4)

1. Three-phase-four-phase electromaschinknaya combined winding with polarity p, / PI, made of forty-eight evenly displaced coils and connected in four parallel three-phase stars, the beginnings of which form three-phase clamps C ,, Cr, Cz for polarity p ,, and conclusions from their zero points form additional four-phase clamps for polarity Pr, differing in that, in order to widen the field of application by obtaining polarity p, / Prr / 6m, where pit is the multiplicity of the numbers of pairs of poles p, and p,., each star includes a sequence four coils in phase C ,, and for each subsequent 481 23456789 W tU213 WIGP 18192Q21222SZ4252627282930313Z333 3S3637383e40i, U243a4S4647 -eight -32 Sz The number of coils alternating with the average star with an interval of six coils, and for phases Cj. and Cs numbers catuplec stars of each subsequent phase alternate relate. and - but the stars of the previous phase with an interval and eight rollers. 2. Wrapping according to claim 1, characterized with ri.-. that in order to obtain the polarity p,, pj 16/6, the number of coils of the first star ij a zy C,: +1, +10, +25, +34, and schach, the grooves of y 3 tt, where h, is the pole division for pole rate p ,. 3. The winding of claim 1, wherein that, in order to obtain the polarity p, / p. - 16/18, the number of coils nerzy zel..- F. gzy C: +1, +4, +2 5, +28. and with „,. 4. Wrapping according to claim 1, different from H. that, in order to obtain the polarity p, / pr - 8/6, the coil numbers of the first star of phase C: +1, -4, +25., -28, and y, f, + 1, where the sign is "+ or" - means consonant or counter-inclusion of the cutters in the star. -2.1 4J  J7 AT .l 2. -42 Phage.Z 4748123 S 6 7B9 10IHZi3f415f617iei9202122232425Z627Z8Za3031K33343S3637383940mZ434t4546 5  36 -6 FIG. 6 Fig.8 2 / Z 48 9 33 S