| 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+1)c=51c, 75c, 99c slots at b = 2, 3, 4 with the number of slots per a pole and phase q=z/3p=17/8, 25/8, 33/8. The invention novelty consists in the following. The three-phase double layer electric machine winding at 2p=16 c poles is made up of 3pc coil groups with the numbers from 1"" to 24""c, i.e. 1) in z=51c slots with q=17/8 and the group 32222222, the first group 1""...8"" coils feature the pitch over the slots ys=3 with the number of turns (1-x)wc, wc, (1-x)wc in 1"", (1+x)wc, (1-x)wc in 2"", 3"", 4"", (1-x)wc, (1+x)wc in 6"", 7"", 8"" and y'si= 4, 2 c (1+x)wc, (1-x)wc turns in 5"" at x=0.43; 2) in z=75c slots with q=25/8 and the group 43333333, i.e the coils of the first group 1""...8"" feature the pitch over slots ys=5 with the number of turns (1-x)wc, wc, wc, (1-x)wc in 1"", wc, (1+x)wc, (1-x)wc in 2"", (1-x)wc, (1+x)wc, wc in 8"" and y si =7, 5, 3 c (1-x)wc, (1+x)wc, wc turns in 3"", 4"", 5"", 6"", 7"" at x=0.54; 3) in z=99c slots with q=33/8 and the group 54444444: in the first group 1""...8"", the coils feature the pitch over the slots ys=6 with (1-x)wc, wc, wc, wc, (1-x)wc turns in 1"", wc, (1+x)wc, wc, (1-x)wc in 2"", 3"", 4"", (1-x)wc, wc, (1+x)wc, wc in 6"", 7"", 8"", ysi=9, 7, 5, 3 with wc, (1+x)wc, wc, (1-x)wc 5"" at x=0.46. The aforesaid distributions of coils with unequal number of turns are repeated in every following group, where c=1, 2, 3...; 2wc is the number of lots turns filled completely with the winding. ^ EFFECT: reducing winding differential dissipation factor. ^ 3 cl, 10 dwg |
