SU1408500A1 - Three-phase combination stator winding - Google Patents

Abstract

The invention relates to windings of electric machines of the combined type with two opposite-pole fields in a common magnetic core and can be used, for example, in single-machine frequency and number of phase converters, etc. The purpose of the invention is to expand the scope of application of obtaining P, / Pj 10/6, The three-phase aligned winding with the numbers of pairs of poles P- / PJ is made of thirty spatially uniformly distributed coils and connected into two parallel three-phase stars, the zeros of which form two additional terminals for poles Styles p, and the beginning form three-phase clamps for polarity p In the first phase, coils with numbers 1, -4, 7, 19, -22 are connected in series in one branch, -16, -28, 25, 13, -10 in another branch, and the end of the first and the beginning of the sixteenth coils are connected together. For the other two phases, the coil numbers alternate with respect to the first phase at intervals of ten and twenty coils. Additional clamps are made from the ends of coils 7 and 25 in the first phase, 17 and 5 in the second phase, 27 and 15 in the third phase, and the groove pitch of the coils is equal to pole delamination for polarity p .. The minus sign in front of the spool number means its opposite in the branch phase. Phases allow connection to a star or to a triangle 2 Il. oh is (l

Description

X

 L

sch

2-3if

9 03

06 15

fas. 2

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

The purpose of the invention is to expand the field of application by obtaining P:, / P, J 5/6.

FIG. 1 shows a diagram of a winding | i; in fig. 2 - winding diagram for polarity p, 5o

The winding (fig. 1) is made one-way in 60 grooves out of thirty coils (with numbers from 1 to 30) with a pitch of U 0 0 60/12 5c. It is connected in phases in two parallel matches, the beginnings of which Modes C1 Cf, C2-C5, SZ-Sb (Fig „2) with a polarity of 5 p. In the first phase, coils with isomers 1, -4, 7, 19, -22 are connected in series into one В | etv, -16, - 28, 25, 3, -10 to another branch, with the end of coil 1 and the beginning of coil 16 connected together. For reuh other phases, performed identically with the first, the numbers of coils alternate with respect to the first phase with intervals of ten and two adtsya coils Additional clips are made from: onts coils: 7 and 25 in the C1-C4 phase | clips 01-04), 17 and 5 in the C2-C5 phase clips 02-05), 27 and 15 in the third aza (clips 03-06 ), I The upper row of arrows in figo 1 designates the directions of the currents at the power supply of the winding through the clips C1, C2, NW (the phases are connected in a star) to three-phase itbiM current (p, 5), and the lower p at powering the winding through additional clamps 01-04, 02-05, 03-06 using a current (p 2 6). The phases of the winding can be joined in a triangle. From the EMF shtagram winding for polarity

JO f 2 3 J 6 7 8 9 W Sh2 13 1 15 J6 17 G8 19 20 2122 23 2 25 26 2728 29,

KXXXXKX f f f

 (where the EMF vectors are assigned the numbers of the coils in Fig. 2) it can be seen that the field with this polarity does not induce an EMF at additional terminals. The presence of equalizing compounds in the phases improves the winding parameters for polarity p - the SSS curve is improved, copper losses are reduced (by 1/5).

Claims (1)

Invention Formula Three-phase stator aligned winding with the numbers of pole pairs p / ш complete from thirty spatially displaced coils and connected in phases to two parallel branches of the beginning and ends, which form three-phase clamps for polarity R., and the outputs from their midpoints form additional clamps for polarity PJ characterized in that in order to expand the field of application by obtaining P, / P 5/6 and expanding the functionality by connecting the phases into a star or a triangle, in the first phase coils are connected in series with U 7 9, -22 in one branch, with numbers -16, -28, 25, 13, -10 into another branch, with the end of the first and the beginning of the sixteenth coils connected together and the numbers of the coils of the other two phases alternate with respect to the first phase in ten and in twenty coils, and these additional clamps are made from the ends of coils 7 and 25 in the first phase, 17 and 5 in the second phase, 27 and 15 in the third phase, and the groove pitch of the coils equals the pole division for polarity p, where the minus sign in front of the number of the katzgshki means its counter inclusion in the branches Pi- 5 P2-6