SU1444905A1 - Combined single five-phase electric machine winding - Google Patents

Abstract

The invention relates to windings of electrical machines of alternating current, in the general magnetic core of which two opposite-pole magnetic fields are arranged. The purpose of the invention is to expand the field of application of the winding by obtaining the polarity Pj / Pj 10/4. The winding is made of uniformly displaced coils and connected in parallel branches, the beginnings and ends of which form single-phase clamps for polarity Pj, and the leads from their middle points form additional clamps for polarity p. The winding contains twenty coils connected in series in five branches with the numbers 1.11, -6, -16 v. the first branch, where the minus sign means the counter turn on the coil in the branch. For Each subsequent coil number alternates with respect to the previous branch with an interval of two coils and their spacing along the grooves is equal to pole division for polarity p. These additional clamps are made in sequence: A, B, C, D, E from the midpoints of all five branches and in the phase-shift EMF diagram form the sequence A-D-B-E-C in a clockwise direction. 6 Il. I (L

Description

four

 About SP

e.E

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

The aim of the invention is to expand the field of application of the winding by obtaining the polarity p,

The invention is illustrated in Figure 5, where:

Fig 1 shows a winding circuit with P, / RE. 10/4 | FIGS. 2 and 3 show its EMF diagrams for a voltage of 10 (FIG. 2) and p 4 (FIG. 3); in FIGS. 4-6, the same. FIG. 1-3, but for a winding with 10/8. .

The winding (FIGS. And 4) is made single-layer in 40 slots of twenty coils (with numbers from 1 to 20) with a groove along the grooves. for fig, 1 and y „C, -S-1 3 for fig 4), where f, and S are pole divisions for poles p and p. It is connected in five branches with single-phase clamps OJ-02 for polarity pj 0 and additional five-phase clamps A ,, for polarity Рй, In the first branch, coils with numbers J, 1J, -6, -16 are connected in series (the minus sign means a counter switching on the coil in the branch), and for each subsequent branch, the coil numbers alternate with respect to the previous branch with the interval of the single-phase current direction when powering the winding through OJ-02 (p {10), and the lower pd shows the directional current A, B, C, D, E; In FIGS. 2,3,5 and 6, the EMF vectors are attributed to nis ra, displacements nnyh-on angles (in el.grad,) for p. 10- (360/20) for p 4- (360/20) 4 CH350 / 5), which ensures the alternation of phases in the ADBEC sequence clockwise (Fig. 3), for PJ 8- (360/20) 8 (360/5) 2®, which ensures phase rotation in the sequence

AB-C-D-E counterclockwise. The polar field p JO does not induce an emf at clamps A, B, C, D, E (see also 5), and a field with p 4 or 8 does not eleven emf at clamps 01-02 (see fig.3 or 6) i.e. winding clamps of different voltages are electromagnetically independent and, therefore, equalizing currents in it do not flow. The windings have winding factors for the winding of FIG. 1 - K ,, 0.707

LTD

and Kgg 1.0, for the winding of FIG. 4 - Cob, about 0.707 and 0.951.

The proposed winding is different from the known winding by the expanded values of the number of pole pairs and the number of phases for polarity p. It can be used in various types of combined electric machines with two opposite-pole magnetic fields in a common magnetic circuit, for example, in single-machine frequency and number of phase converters, in non-contact dual-feed machines, etc.

Claims (1)

Invention Formula Electromachine single-phase ty-phase combined winding with a pole, made of evenly spaced coils and connected in five parallel branches, the beginnings and ends of which form single-phase clamps for polarity p. , and the conclusions from their midpoints form additional clamps for a pole-mountable Tire, differing from the fact that, in order to expand the region of application by obtaining p, / P2 JO / 4, the winding contains twenty coils, with the coils connected in series in the first branch with numbers f 1.11, -6, -16j and for each subsequent branch, the number of coils alternate with respect to the previous branch with an interval of two coils and their step along the slots is equal to the pole division for polarity. 20 1 g 3 456 7 8 d iO and P 1S 1 fS 16 17i8 i9 P X r g X eleven Oi . 2 1 V 9 S 11 JZ 13 r rs 16 17 18 IS ZO 1 11 A -IB -6 01 og FIG. five Editor E. Kopcha Compiled by A. Ketsaris Tehred A. Kravchuk I 1   t i 1 I i n j P, W PIOf / f eight 02 Phases. i i 11A -6 -i6 3 -li 8-8 - 18 5 -fS S-U-2O    . i 02 7 i and -f2 -i 9 19B -fV -t / F1 / g4 6 Proofreader V.Romanenko