| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the occurrence of a relatively low harmonic voltage, particularly problematic in specific harmonics. <P>SOLUTION: A motor includes a stator 8 constituted of a substantially annular stator core 15 with slots at a substantially constant interval and a stator winding 16 attached to the stator core 15, and includes a rotor 7 rotatably provided to the inside of the stator core 15. The stator winding 16 is constituted of two or more sets of three-phase windings, and each set of three-phase windings is connected separately to a different power supply controller and is driven by power supplied from the power supply controller. When the number of sets of three-phase winding is n, the phase difference between the sets is substantially (60/n)° in an electric angle, and when the number of pulses of the voltage waveform supplied from an inverter is m, the number of pulses m is defined as m≥2n-1. <P>COPYRIGHT: (C)2010,JPO&INPIT |
