| 摘要 |
FIELD: electric machine industry. ^ SUBSTANCE: three-phase double-layer electric machine winding in z=93.c grooves: 1) at 2p=22.c poles with number of grooves per pole and phase q=z/3p=31/11 made of 3p.c coil groups with numbers from 1G to 33G c and grouping of coils by row 33333233332, which is repeated 3.c times: in the first grouping 1G...11G three-coil groups have steps of coils by grooves ygi=6, 4, 2 with wc, wc, (1-x)wc turns in 1G, 5G, 7G, 10G and wc, (1+x)wc, (1-x)wc in 3G, ygi=4, 4, 4 with (1-x)wc, (1+x)wc, wc in 2G, 8G and wc, (1+x)wc, (1-x)wc in 4G, 9G, and double-coil - y'gi=5, 3 with (1+x)wc, (1+x)wc turns at value of x=0.52 and number of 2wc turns of every groove; 2) at 2p=26.c poles with number of grooves per pole and phase q=z/3p=31/13 made of 3p.c coil groups with numbers from 1G to 39G.c and grouping of coils by row 3232232322322, which is repeated 3 c times: in the first grouping 1G...13G three-coil groups have steps of coils by grooves ygi=6, 4, 2 with (1-x)wc, wc, (1-x)wc turns, and double-coil - y'gi=5, 3 with wc, (1+x)wc turns at value of x=0.38, where c=1, 2, 3,...; 2wc - number of grooves turns that are completely filled with winding. ^ EFFECT: reduction of differential scattering coefficient sigmas for symmetric m'=3-zone electric machine fractional (q=31/11 and q=31/13) loop winding. ^ 8 dwg |
