| 摘要 |
PURPOSE:To reduce the absolute value of the inductance of a stator in each phase by winding a stator coil for forming a rotary magnetic field in a distributed winding and distributing the coils of the respective phases over the specific electric angle, thereby reducing the variation in the inductance of the stator in each phase. CONSTITUTION:In a stator coil of 2-pole 3-phase 12-slot synchronous motor for a servo motor, 1 phase is formed of 8 of 12 slot, and U, V and W phases are formed from the outermost periphery inwardly. In each phase, the coil is connected in the sequence of the numbers 1-1'-2-2'-3-3'-4-4', and the distribution of the coils between the U phase and the V phase and between the V phase and the W phase is formed with 2/3pi electric angle. In this manner, the variation in the value of the inductance in each phase of the stator can be reduced, thereby reducting the absolute value of the inductance. |
