SU1372480A1 - Electric machine combined single-phase winding - Google Patents

Abstract

The invention relates to windings of electric machines of alternating current with two opposite-pole working magnetic fields in a common magnetic circuit. The purpose of the invention is to expand the field of application by obtaining the numbers of pairs of poles p, as well as improving the parameters for polarity P by improving the shape of the MDS curve and reducing losses in copper. Electric combined single-phase winding is made of twelve equally-displaced coils connected in series to parallel branches, the beginning and ends of which form clamps for polarity p, and the leads from the middle points of the branches form additional clamps for polarity p. Coils are included in three, branches with numbers 1,4,7,10 for the first branch, 2,3,5,6 for the second branch, 11, 12,8,9 for the third branch. These additional clamps are made from the middle points of the second and third branches. The groove pitch of the grooves is 2: -1, where Cj is the pole division for polarity p. 4 il. s (l

Description

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An image, a current, refers to the windings of an AC electric machine with two opposite-pole fields in a common magnetic circuit.

The purpose of the invention is to expand the field of application by obtaining P (as well as improving the parameters of the ring polarity Pj.

Fig. 1 shows a winding circuit of Fig. 2 — an integral MDS curve for p 2; FIGS. 3 and 4 are diagrams of EMF coils for 12 and, respectively.

The winding (figure 1) is made single-phase with a single layer in 24 slots of 12 coils (with numbers from 1 to 12)

Claims (2)

with a step along the grooves y, g De Formula of the invention - pole division for p 2. Coils are connected in series-according to three branches and have numbers 1, A, 7 and 10 in the first, 2,3,5 and 6 in the second and 11,12,9 and 8 in the third branch x. Their beginnings and ends form the clamps A and B dl, and the leads from the midpoints 25 of the second and third branches form additional clamps 01 and 02 dl. In Fig. 1, the upper row of arrows shows the direction of the current supplying terminals A and B (p, 12), and the lower row shows the direction of the current that supplies terminals 01 and 02 (Pt 2) for which the integral curve MDS is plotted .2). In FIGS. 3 and 4, the EMF vectors are assigned numbers of coils. From fig.Z for p, 12 it can be seen that the field with p, 12 does not induce an emf at terminals 01 and 02; from, 4 dl it is seen that the field c does not induce an emf at terminals A and B. Part of the coils (with numbers 1,4,7 and 10) is induced from the dl circuit, which improves para35 Electric combined single-phase winding with a polarity p, / p, is made of twelve evenly displaced coils connected in parallel branches in series, according to, the beginning and ends of which form clips for polarity p, and the outputs from their midpoints form additional clips for polarity p characterized in that, in order to expand the field of application by obtaining p ,, as well as improving the parameters for polarity Pj, the coils are included in three branches with numbers 1, 4, 7, 10 for the first branch, 2, 3, 5, 6 for the second branch, 11,12,8,9 dl the third branch, moreover, these additional clamps are made from the midpoints of the second and third branches, and the groove spacing of the coils is 1 where t is the pole division for polarity p. C winding meters for, improve the shape of the MDS curve (figure 2), reduce by 1/3 the loss in copper. Winding factors for - LO; for p 2 - K ,, 0.837. Compared to a winding for which pi / pt 12/3, the proposed winding has p, and improved parameters for PJ. It can be used in electro-machine devices with two opposite-pole magnetic fields in the magnetic circuit (single-machine frequency converters and phase numbers, controlled ferromagnetic reactors, etc.). Claim 0 0 O five Electric combined single-phase winding with a polarity p, / p, is made of twelve evenly displaced coils connected in parallel branches in series, according to, the beginning and ends of which form clips for polarity p, and the outputs from their midpoints form additional clips for polarity p, characterized in that, in order to expand the field of application by obtaining p ,, as well as improving the parameters for polarity Pj, the coils are included in three branches with numbers 1, 4, 7, 10 for the first branch, 2, 3, 5, 6 for the second branch, 11,12,8,9 dl the third branch, moreover, these additional clamps are made from the midpoints of the second and third branches, and the groove spacing of the coils is 1 where t is the pole division for polarity p. ig.2 / 7 10 2, f K 11/2 02 in 3 Fig.Z  Rygl