| 摘要 |
FIELD: electric machinery industry. ^ SUBSTANCE: three-phase double-layered electric machine winding in z=66.c slots with 2=26.± poles with number of slots per pole and phase defined as q=z/3p=22/13 is comprised of .± coil groups numbered from 1G to 39G c and coil grouping as 2221221221221 sequence repeated 3.c times. At that, in the first grouping, 1G...13G, two-coil groups have coil slot pitches of ysi=3, 3.with numbers of turns of (l-x)wK, wK in the 1G group and wK, (l-x)wK in the 3G group, ysi=4, 2 with numbers of turns of (l-x)wK, (l+x)wK in the 2G group and (l-x)wK, wK in 5G, 6G, 8G, 9G, 11G, 12G groups, while one-coil groups, 4G, 7G, 10G, 13G, have s=3-(1+)wK turns, where ±=1, 2, 3, ...; 2wK is the number of turns in those slots that are completely filled with winding, and =0.47. This distribution of coils with different number of turns is repeated in every next grouping. ^ EFFECT: lowering of differential scattering factor sigmad of asymmetric t'=3-zone fractional-slot (q=22/13) lap winding of electric machinery. ^ 4 dwg |
