| 摘要 |
FIELD: electrical engineering. ^ SUBSTANCE: invention relates to electrical engineering and aims at reducing differential dissipation factor sigmad of the electric machine symmetric divided loop with m'=3-section furnished with 2p=16c poles in z=3(8b+7)c=69c, 93c, 117with 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=16c poles is made up of 3pc coil groups with the numbers from 1"" to 24""c 1) in slots z=69c with q=23/8 and the coil group 33333332, in the coil group 1""...8"" the coils feature the coil pitch over the slots ysi=6, 4, 2 c wc, wc, (1-x)wc turns in 1"", 7"", wc, (1+x)wc, (1-x)wc in 3"", 4"", 5"", ys=4 c (1-x)wc, (1+x)wc, wc in 2"", wc, (1+x)wc, (1-x)wc in 6"" and (1+x)wc in 8"" at x=0.56, 2) in z-93with slots with q=31/8 and the coil group 44444443, the first coil group 1""...8"", the coils feature the pitch over the slots ys=6 with (1-x)wc, wc, (1+x)wc, wc turns in 1"", 2"", (1-x)wc, wc, (1+x)wc, (1-x)wc in 3"", (1-x)wc, (1+x)wc, wc, (1-x)wc in 5 "", wc, (1+x)wc, wc, (1-x)wc in 6"", 7"", wc, (1+x)wc, wc in 8"" and ysi=9, 1, 5, 3 with (1-x)wc, wc, (1+x)wc, wc in 4"" at x=0.51, 3) in z=117c slots with q=39/8 and the coil group 55555554, the first coil group 1""...8"" have the coil pitch over the slots ysi=11, 9, 7, 5, 3 with wc, wc, wc, wc, (1-x)wc turns in 1"", 7"", wc, wc, (1+x)wc, wc, (1-x)wc in 3"", 4"", 5"", ysi=7 with (1-x)wc, wc, (1+x)wc, wc, wc in 2"", wc, wc, (1+x)wc, wc, (1-x)wc in 6"" and wc, (1+x)wc, (1+x)wc, wc in 8"" 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 |
