| 摘要 |
FIELD: stator windings of multipole synchronous and induction machines. SUBSTANCE: three-phase fractional-slot (q=6/7) double-layer stator winding with pole number 2p=14 in slots z=36 has C=36 coils placed at slot pitch yand numbered 1C through 36C; in each phase, they are connected in star or in delta. Novelty is that first phase incorporates coils numbered 1C, -3C, 6C, -8C, 11C, 16C, -19C, 21C, -24C, 26C, -29C, -34C; in two other phases, their numbers alternate with intervals of 12 and 24 coils; turn number is (1+k)wfor coils 1C and 2C, (1-x)wfor coils 3C, 4C, 5C, 6C; mentioned grouping of unequal-turns coils alternates every next six coils, where y; minus sign at coil number means differential connection of this coil in phase relative to coil without this sign; 2wis turn number per slot; parameter "x" is chosen within the range of 0,20≅ x≅ 0,30.. EFFECT: improved electromagnetic parameters of winding with fractional slots per pole per phase due to reduced differential dissipation. |
