| 摘要 |
FIELD: electric machine industry. ^ SUBSTANCE: three-phase double-layer electric machine winding in z=90.c grooves: 1) at 2p=22.c poles with number of grooves per pole and phase q=z/3p=30/11 made of 3p.c coil groups with numbers from 1G to 33G.c and grouping of coils by row 33323332332, which is repeated 3 c times: in the first grouping 1G...11G three-coil groups have steps of coils by grooves ygi=6, 4,1 with numbers of turns (1-x)wc, (1+x)wc, (1-x)wc, and double-coil - yg=5, 3 c (1+x)wc, (1+x)wc turns at value of x=0.40; 2) at 2p=26.c poles with number of grooves per pole and phase q=z/3p=30/13 made of 3p.c coil groups with numbers from 1G to 39G.c and grouping of coils by row 3223223223222, which is repeated 3 c times: in the first grouping 1G...13G three-coil groups have steps of coils by grooves ygi=5, 3, 1 with number of turns (1-x)wc, wc, (1-x)wc, and double-coil - y'gi=4, 2 with (1+x) wc, wc turns in 2G, 3G, 5G, 6G, 8G, 9G and (3+x)wc, (3-x)wc turns in 12G, y'gi=3, 3 with (1+x)wc, wc turns in 11 G and wc, (1+x)wc turns in 13G at value of x=0.36, where c=1, 2, 3,...; 2wc - number of grooves turns, which are completely filled with winding. Specified distribution of coils with unequal number of turns are repeated in every subsequent grouping. ^ EFFECT: reduction of differential scattering coefficient sigmas% for symmetric m'=3-zone electric machine fractional (q=30//11 and q=30/13) loop winding. ^ 2 cl, 8 dwg |
