| 摘要 |
PURPOSE:To eliminate rise of a DC voltage of an inverter side over a rated value even at the time of power reverse supply operation by regulating operating power command values of poles and controlling the DC voltage of the inverter side to a predetermined value or lower. CONSTITUTION:In a controller of a dipole or more AC/DC converter in which a predetermined pole of one terminal is operated by a power converter, the other pole is operated by an inverter, and a neutral line is commonly used, operation power command values of the poles are regulated to limit a DC current of the inverter side to a predetermined value or less. For example, if power varying range at the time of power reverse supply operation is instructed, for example, by + or -P% by an operator, current values in which a DC voltage of an INV of a reverse supply side does not exceeds a voltage of a REC side is calculated for P1, P2 poles by current command value determining circuit 20 of each pole, delivered to P1 and P2 pole limiters 21, 22, and operated with the poles in coincidence with the current command values. |
