| 摘要 |
A power module 3 that converts a dc voltage into a three-phase ac voltage, current sensors 1 and 2 that detect the ac side current of the power module 3, a shunt resistor 7 and an amplifier 6 that detect a dc side current of the power module 3, and a control section 11A that controls the power module 3 by pulse-width modulation using a spatial vector modulation method on the basis of the ac side current detected by the current sensors 1 and 2 and the dc side current detected by the shunt resistor and the amplifier are provided. The control section corrects the amplitude and the offset of the ac side current detected by the current sensors on the basis of current components, corresponding to current components of prescribed phases of the ac side current, of the dc side current detected by the shunt resistor and the amplifier. |
