| 摘要 |
PROBLEM TO BE SOLVED: To effectively inhibit an AC content contained in a DC that flows in a filter reactor 2. SOLUTION: A voltage Ecf1 of a filter capacitor is detected, a d-axis voltage compensation value dvd, a q-axis voltage compensation value dvq, a q-axis voltage compensation value diq, and a frequency compensation value dω1 are calculated based on the amount of AC in Ecf1 for adding to a d-axis voltage command, a q-axis voltage command, a q-axis current, and a frequency command, and the DC in a power transducer is controlled, thus canceling the amount of AC contained in the DC, and effectively inhibiting the amount of AC. |
