FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and aims at reducing differential dissipation factor σd of the electric machine symmetric divided loop with m'=3-section furnished with 2p=16·c poles in z=3(8·b+7)·c=69·c, 93·c, 117·with slots at b=2, 3, 4 and the number of slots per a pole or phase q=z/3p=23/8, 31/8, 39/8. The proposed winding at 2p=16·c poles is made up of 3p·c coil groups with the numbers from 1"Г" to 24"Г"·c 1) in slots z=69c with q=23/8 and the coil group 33333332, in the coil group 1"Г"...8"Г" the coils feature the coil pitch over the slots ysi=6, 4, 2 c wc, wc, (1-x)wc turns in 1"Г", 7"Г", wc, (1+x)wc, (1-x)wc in 3"Г", 4"Г", 5"Г", ys=4 c (1-x)wc, (1+x)wc, wc in 2"Г", wc, (1+x)wc, (1-x)wc in 6"Г" and (1+x)wc in 8"Г" at x=0.56, 2) in z-93·with slots with q=31/8 and the coil group 44444443, the first coil group 1"Г"...8"Г", the coils feature the pitch over the slots ys=6 with (1-x)wc, wc, (1+x)wc, wc turns in 1"Г", 2"Г", (1-x)wc, wc, (1+x)wc, (1-x)wc in 3"Г", (1-x)wc, (1+x)wc, wc, (1-x)wc in 5 "Г", wc, (1+x)wc, wc, (1-x)wc in 6"Г", 7"Г", wc, (1+x)wc, wc in 8"Г" and ysi=9, 1, 5, 3 with (1-x)wc, wc, (1+x)wc, wc in 4"Г" at x=0.51, 3) in z=117c slots with q=39/8 and the coil group 55555554, the first coil group 1"Г"...8"Г" have the coil pitch over the slots ysi=11, 9, 7, 5, 3 with wc, wc, wc, wc, (1-x)wc turns in 1"Г", 7"Г", wc, wc, (1+x)wc, wc, (1-x)wc in 3"Г", 4"Г", 5"Г", ysi=7 with (1-x)wc, wc, (1+x)wc, wc, wc in 2"Г", wc, wc, (1+x)wc, wc, (1-x)wc in 6"Г" and wc, (1+x)wc, (1+x)wc, wc in 8"Г" at x=0.55. The aforesaid distributions of coils with unequal number of turns are repeated in every following group, where c=1, 2, 3...; 2wc is a number of slots filled completely with the winding.
EFFECT: reducing winding differential dissipation factor.
3 cl, 10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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