SU1211834A1 - Combined winding for electric machine - Google Patents

Description

one

The invention relates to coils of combined electric machines and can be used, for example, in single-machine frequency and phase converters, in non-contact AC machines with a combined driver, etc.

The purpose of the invention is to expand the field of application of the winding by obtaining the numbers of pairs of poles P. / P 9/2.

FIG. 1 shows the unfolded; scheme of the proposed winding; in fig. 2 - EMF diagram for pole position p, 9.

The winding (fig. 1) is made with pole polarity p, 1 three-phase single-layer in 54 slots of 27 distributed coils (with numbers from 1 to 27) with a step along the slots of 5 G, 15 where c, 54/18 3 is pole division for polarity p, 9. The winding is connected in three parallel stars (Fig. 2), the beginnings of which form three-phase clips C1, C2, Sz for polarity PJ 9, and the outputs from the zero points of the first and third stars form additional clips 01 and 02 for polarity p 2. B star phase coil: and connected in series according. In phase C, the coils numbered 1, 4, 16 are included in the first star, 7, 13, 19 - in the second star; 10, 22, 25 - in the third star in phase C2, coils 5, 17, 20 are included in the first star, 2, 14, 26 - in the second star, 8, 11, 23 - in the third star in phase NW, coils 3, 15 ,

18 in

211834J

the first star, 6, 21, 27 - in the second star, 9, 12, 24 - in the third star. The zero points of the first, second, and third stars are indicated in FIG. one

5 and 2 through 01, O, 02. The upper row of arrows in FIG. 1 shows the direction of the currents when powering the winding through the clips C1, C2, Sz by a three-phase current (p 9), and the lower p d - at

 power winding through the terminals 01 and 02 by direct current (PJ 2).

On the EMF diagram of the winding coils for polarity p 9 (Fig. 2), the Kat number S of the sheaths is assigned to the EMF vectors. From FIG. 2 that the field with a polarity of p 9 at the zero points of the stars does not induce an emf.

A field with a polarity of p 2 is created by feeding the winding through

20 clamps 01 and 02 direct current,

at the same time, the second star in all three phases does not flow around this current, as a result of which the winding parameters for polarity ρ2 are improved;

25, copper losses are reduced, the shape of the MDS curve is improved.

The proposed winding makes it possible to obtain Pj / Pg - 9/2 poles and

30 compared with the prototype winding has a wider range of applications. It can be used in electromachine and electromagnetic devices with two combined

; 15 magnetic fields to create a rotary field, its field with pole size p ,, 9 and a constant FIELD with pole size p 2. The winding factor ,,, the winding for p 9 is equal to K 1.0.

7

vnishi

Circulation 632

Order 648/58 Subscription

Branch PIP Patent, Uzhgorod, Projecto St. 5 4

Claims (1)

ELECTROMATIC COMBINED WINDING with the numbers of pole pairs p ^ / p _g , made up of twenty seven distributed coil groups and connected in three parallel three-phase stars, the beginnings of which form three-phase clamps for the pole p _f , the conclusions from their zero points form two additional clamps for the pole p _2, and a phase coil groups connected in series, the stars in accordance, characterized in that, in order to expand the application receipt by p / p ₂ - 9/2, included in the first phase coil groups numbered 1, 4, 16 prim th star, 7, 13, 19 - into the second star, 10, 22, 25 - into the third star, in the second phase groups 5, 17, 20 are included in the first star, 2, 14, 26 - into the second star, 8, 11 , 23 - in the third star, in the third phase groups 3, 15, 18 are included in the first star, 6, 21, 27 in the second star, 9, 12, 24 - in the third star, and these additional clips are made from the zero points of the first and of the third star, and the step of the coils is 5 where C is the pole division for the pole p ₍ . »25 27 1 2 3 4 5 g 1 g 9 10 V 12 ΰ Щ 15 16 П 18 19 20 21 21 23 24- ci а сз Fig.! >