SU1422308A1 - M1/m2-phase combination winding for dynamoelectric machine - Google Patents

Abstract

The invention relates to coils of alternating-type electrical electrical AC circuits with two opposite-pole magnetic fields in a common magnetic conductor. The purpose of the invention is to expand the field of application of the winding by obtaining the numbers of phases 4/5 and the numbers of pairs of poles p ,. The winding is made of uniformly displaced coils and connected in t parallel t, phase stars, the beginnings of which form t, phase clamps for polarity p, and the leads from their zero points form additional t, phase clamps for polarity p. To get 5/4 with m, the winding is made of forty coils with m, 4-phase clips C1, C2, C3, C4 and in each star two coils with phase numbers C1 for the first star 1 and 2 are connected in series. For each subsequent the stars of this phase the numbers of the coils alternate with respect to the previous star with an interval of eight coils. For phases C2-C4, the numbers of the coils of the stars of each subsequent phase alternate with respect to the stars of the previous phase with an interval of ten coils. The groove pitch of the grooves is, + 1, where is the pole division for polarity p. 9 ip., 1 tab. S (l

Description

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The invention relates to the windings of electric machines of alternating current with two opposite-pole magnetic fields combined in a common mini-conductor.

The purpose of the invention is to deplete the field of application by obtaining m, and p, / p2.5 / 4.

Figure 1 shows the scheme of the winding about with P (on (jMr.2 and 3 - diagrams

EMF for polarity p, 5 and, respectively; FIGS. 5 and 6 are the same as in FIG. 1, but for the winding in the second embodiment; in Fig.7-9 - the same, as in Fig.1-3, but for the winding with p "/ p, .- 5/8.

20

25

thirty

Winding (Fig.1,4 and 7) is made single-layer in 80 grooves of forty coils (with numbers from 1 to 40)

and connected in t, 5-parallel m 4t

phase stars, the beginnings of which form

 t, "4-phase terminals C-SZ for pole-.

 Carry p, 5, and the conclusions from their zero points form additional phase Phase clamps A, B, C, D, E for a pole. In each star, two coils are connected in series, having +1 and K. numbers in the Cdl phase of the first star.

For each subsequent star of the C1 phase. the number of coils alternated with respect to the previous star of phase C1; the numbers of the coils alternate with respect to the previous one with an interval of eight coils. For phases C2-C4, the numbers of the coils of the stars of each subsequent phase alternate with respect to the stars of the previous phase with an interval of ten coils and their step along the slots is y. The values of the steps Up of the winding coefficients for the poles p, and p (, and KoSpj) the values of K are listed in the table.

In Figures 1, 4, and 7, the upper row of arrows indicates the directions of the four-phase current when the winding is fed through C 1-C4, and the lower row shows the directions of the four-phase current when the winding is fed through A, B, C, D , E. On the EMF diagrams d EMF vectors are assigned the numbers of the coils, whence it is clear that the field with pole- ness does not induce EMF at terminals A, B, C, D, E (Fig.2.5 and 8), and field with

magnetically independent and, therefore, equalizing currents in it do not flow. The phase alternation in the EMF diagram for pole polarity depends on the angle (in eLo deg.) Of the coil shift (360 / / 40) Pj and form a sequence clockwise or counterclockwise (Fig. 3, 9 and 9 and the table) where the minus sign is before The number K means the counter turn on the coil with this number.

The winding is symmetrical for each pole and has a high 15 values of winding coefficients (see table).

In comparison with the known, the proposed winding has extended values of the numbers of phases and pairs of poles. It can be used in various types of combined AC electric machines with two opposite-pole magnetic fields in a common magnetic core: single-machine frequency converters and phase numbers, non-contact dual-feed machines, etc.

Claims (1)

Invention Formula Electric combined m, / mj-phase winding with a polarity p, / p, made of uniformly displaced coils and connected in t parallel-35 t-phase stars, the beginnings of which form t-phase clamps for polarity p, and the output from their zero points form additional W-phase clamps for polarity p, o t l and 40 that, in order to expand the field of application by obtaining t, and p (, the winding is made of forty coils with ha 4-phase clips C1, C2, N3, C4 and in each star two coils with numbers in the C1 phase for the first star 1 and 2, and for each subsequent star of this phase, the coil numbers alternate with respect to the previous star with an interval of eight coils, and for the C2-C4 phases, the numbers of the star coils for each subsequent phase alternate with the stars of the Previous phase with intervals of p4 does not induce depolarity DS on its za- with five coils and their pitch along the slots equal zhimah C1 - C4 (. Figs 3,6 and 9), i.e., where t, clamps had polar winding electric pole pitch for p polarity, magnetically independent and, therefore, equalizing currents in it do not flow. The phase alternation in the EMF diagram for pole polarity depends on the angle (in eLo deg.) Of the coil shift (360 / / 40) Pj and form a sequence clockwise or counterclockwise (Fig. 3, 9 and 9 and the table) where the minus sign is before The number K means the counter turn on the coil with this number. The winding is symmetrical for each pole and has high values of winding coefficients (see table). In comparison with the known, the proposed winding has extended values of the numbers of phases and pairs of poles. It can be used in various types of combined AC electric machines with two opposite-pole magnetic fields in a common magnetic core: single-machine frequency converters and phase numbers, non-contact dual-feed machines, etc. thirty Invention Formula Electric combined m, / mj-phase winding with pole size p, / p, made of uniformly displaced coils and connected into t parallel t-phase stars, the beginnings of which form t-phase clamps for polarity p, and the output from them zero points form additional w-phase clamps for polarity p, o t l and so that, in order to expand the field of application by obtaining t, and p (, the winding is made of forty coils with a hectare 4-phase clips C1, C2, C3, C4 and in each star two coils with numbers in phase C1 are connected in series for the first star 1 and 2, and for each subsequent star of this phase, the coil numbers alternate with respect to the previous star with an interval of eight coils, and for the C2-C4 phases, the numbers of the coils of stars of each subsequent phase alternate with respect to the stars of the Previous phase with intervals of dex step grooves are equally - pole division with coils and them where t, for p polarity, t, 0.906 0.939 +2 -A-B-C-D-E (counterclockwise) s;, + 0.906 0.988 -6 A-B-C-D-E (counterclockwise) , 0.906 0.891 -6. A-D-B-E-C (by clockwise)  0.906 0.809 +16 A-D-B-E-C (counterclockwise)  0.906 0.951 +16 A-B-C-D-E (by clockwise) Z / OPZ 1 5 6 1 S 3 0 P2i 8 3Z02122232 i25 S 7 S2nOJlJ2JU i556} 7J8 C Cr (rj 41 I f / if in fae. WITH/ 5 L7 BUT 11r.2 9ag. J 5W J Z5 f5S783 nf5} 6 7} 8 S 02 2Z2:} 2 i2525272829J03; .JEdl} iJ5J65738 a V / V / -v  / f  f ae f 7/5 23 -J2 ag.5 0 g 2 J S 6 7 S 9W n2fJJtf5J6J7J8J9JO l fJ a. Rig 7 Pi 7Z6 -W f) ig.6 PrS Pr - 8 71 fi i (Si 7 15 2 .eight ag.Z