| 摘要 |
PROBLEM TO BE SOLVED: To provide an AC power supplier, capable of suppressing an influence of high harmonic voltage to a load generated when an inverter is PWM driven, and an AC motor capable of reducing space high harmonics generated at drive control time by the inverter. SOLUTION: A device has a first/second inverter 2, 3 converting DC power into AC power supplied to a motor 5, first to third opening/closing switches 6 to 8 switching the first/second inverter 2, 3 to series connection between DC power positive/negative poles 21, 32 or to parallel connection relating to a battery, and a three-phase transformer 4 combining an output of the first/ second inverter 2, 3, connected in series or parallel by the first to third opening/ closing switches 6 to 8, supplied to the motor 5. |
