| 摘要 |
PROBLEM TO BE SOLVED: To provide an inverter device which enables the accurate correction of DC components by improving dispersion in detection of DC component values.SOLUTION: The inverter device includes an inverter main circuit 7, a DC component detecting circuit 11 which is connected to the output side of the inverter main circuit 7 and detects the DC components of the output current of the inverter main circuit 7, and an inverter main circuit control circuit 8 which receives the input of the DC components of the output currents and corrects the DC components of the inverter main circuit 7 based on the DC components of the output currents. The inverter main control circuit 8 has a recorder 9 which is connected to the DC component detecting circuit 11 and stores the output currents of the inverter main circuit 7 as a DC offset voltage value when the inverter main circuit 7 is in a nonoperation state, a comparator 10 which is connected to the recorder 9 and compares the DC component value of the output current of the inverter main circuit 7 on the basis of the DC offset voltage value, and a corrector 16 which is connected to the comparator 10 and corrects the DC components of the inverter main circuit 7. |
