SU1224905A1 - Combined stator winding - Google Patents

Abstract

This invention relates to windings (VB) of electrical alternating current machines. The purpose of the invention is to expand the field of application by obtaining the number of pole pairs Pi / P2 9/6. Both are made of twenty seven distributed coil groups (CG) and are connected in three parallel three-phase stars, the beginnings of which form clamps for polarity PI, the leads from their zero points form two additional terminals for polarity P2. In the first phase, CGs with numbers 1, 10, 19 — in the first star, 7, 16, 25 — in the second star, 4, 13, 22 — in the third star are included, in the second phase, CG 2, 11, 20 - in the first star, 5, 14, 23 - in the second star, 8, 17, 25 - in the third star, in the third phase included KG 6, 15, 24 - in the first star, 3, 12, 21 - in the second star, 9, 18 , 27 - to the third star, and these additional clamps are made from the zero points of the first and third stars, and the coil pitch is 5m |, where T | - pole dates for polarity P |. The field with the polarity on the zero points of the stars does not induce an emf, therefore, ABOUT at the same time can be used to create a rotating MDS with a PJ of 9 N constant MDS with Pr 6. 6 Il. g O) 25 26 27 1 2 3 li 5 6 7 8 9 10 1} P / J Ik 15 W 17 18 19 2021 22. and С2 СЗ ю ю 4: СГ О с Fig 1

Description

The invention relates to the windings of a combined electric machine of alternating current and can be used, for example, in single-machine transducers of frequency and number of phases, etc.

The purpose of the invention is to expand the field of application of a winding by obtaining the numbers of pairs of poles H / f2 9 / 6H in FIG. 1 shows a diagram of the proposed winding; in fig. 2 is its EMF diagram for pole position.

The winding (fig. 1) is made in 54 slots of 27 coils (with numbers 1-27) with a groove slot and connected to three parallel three-phase stars (fig. 2), the beginnings of which form three-phase clips C1, C2, NW. for polarity and, from the zero points of the stars, conclusions 01, 02, 0 are made. Clips 01 and 02 from the zero points of the first and third stars form clips for polarity. The upper row of arrows in FIG. 1 shows the direction of the currents when the winding is powered through the clips C1, C2, Sz by the three-phase current, and the lower pd when the charge is supplied through the clips 01 and 02 by the direct current P2 6). in the phase stars, the coils are connected in series according to. In the C1 phase, the coils with numbers 1, 10, 19 are included in the first star. 7, 16, 25 - in the second star. 4, 13, 22 - in the third star; in phase C2, the coils 2, 11, 20 are included in the first star, 5, 14, 23 - in the second star, 8, 17.26 - in the third star; coils 6, 15, 24 are included in the first star, 3, 12, 21 - in the second star. 9, 18, 27 - in the third star.

The combined stator winding with the numbers of pole pairs Pi / P2, made of twenty-seven distributed coil groups and connected into three parallel three-phase stars, the beginnings of which form three-phase clamps for polarity PI, the conclusions from their zero points form two additional clamps for polarity RD, and in the star phases the coil groups are connected in series according to, characterized in that, in order to expand the field of application by obtaining Pi / P2 9/6, in the first phase the coil groups numbered 1, 10, 19 are included in the first star, 7,16, 25 - in the second star. 4, 13, 22 - in the third star, in the second phase included groups 2, 11, 20 in the first star. 5, 14, 23 - in the second star, 8, 17, 25 - in the third star, in the third phase, groups 6, 15, 24 are included in the first star, 3, 12, 21 - in the second star. 9, 18, 27 - in the third star, and these additional clamps. We performed

FIG. 2 EMF vectors are assigned numbers of coils, from which it is clear that the field with

polarity at the zero points of stars 35 from the zero points of the first and third stars, and leads to an emf. When powering additional pitch coils is 5t1, where n - pole

clamps 01 and 02 DC coil separation for Pb polarity

0

5 5

0

0

the second phase stars do not flow around this current, as a result of which the winding parameters for polarity P are improved (the losses in copper are reduced by 1/3, the shape of the MDS curve is improved).

Thus, the proposed winding is equivalent to two opposite-pole mutually inductively uncoupled windings: three-phase 2Pj 18-pole and 2Pr 2-pole for direct current. Compared with the known winding having PI / P 9/3, it has a wider range of application. For the winding, FIG. 1 Kobe 1.0-winding ratio for pole positions Pj 9.

Claims (1)

Invention Formula The combined stator winding with the numbers of pole pairs Pi / P2, made of twenty-seven distributed coil groups and connected into three parallel three-phase stars, the beginnings of which form three-phase clamps for polarity PI, the conclusions from their zero points form two additional clamps for polarity RD, and in the star phases the coil groups are connected in series according to, characterized in that, in order to expand the field of application by obtaining Pi / P2 9/6, in the first phase the coil groups numbered 1, 10, 19 are included in the first star, 7,16, 25 - in the second star. 4, 13, 22 - in the third star, in the second phase included groups 2, 11, 20 in the first star. 5, 14, 23 - in the second star, 8, 17, 25 - in the third star, in the third phase, groups 6, 15, 24 are included in the first star, 3, 12, 21 - in the second star. 9, 18, 27 - in the third star, and these additional clamps. We performed from the zero points of the first and third stars, and the step of the coils is 5t1, where n is pole , .D 1521 to 23 17 FIG g Compiled by A. Ketsaris Editor N. Gorvattehred I. VeresKorrektor M Order 1918/53 Circulation 631 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5 Branch PPP "Patent, Uzhgorod, st. Design,