| 摘要 |
PROBLEM TO BE SOLVED: To achieve a stable output of a symmetrical three-phase AC voltage and suppress a DC component superposed on a three-phase AC current.SOLUTION: The power conversion apparatus includes: a first capacitor C1 and a second capacitor C2 connected in series to both positive and negative ends of a DC power supply 110; a three-phase power supply section 120 that converts DC power of the DC power supply 110 into three-phase AC power and supplies the power to a load; a driving signal output section 140 that outputs a driving signal to the three-phase power supply section 120; and a pulse signal generation section 150 that outputs a pulse signal for setting a differential voltage at zero to the driving signal output section 140, using a differential voltage between a voltage of the first capacitor C1 and a voltage of the second capacitor C2, and a U-phase voltage, a U-phase current and a W-phase voltage output from the three-phase power supply section 120. |
