| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a controller of a parallel multiplex power conversion device that continues to stably operate even when receiving a disturbance such as an AC power system accident. <P>SOLUTION: The controller of the parallel multiplex power conversion device is provided with a plurality of power converters each having one end connected to a bus of an AC power system through a transformer, and has a capacitor in a DC circuit at the other end of the power converters. The controller of the parallel multiplex power conversion device includes a current detection part which detects a composite current flowing to the bus and a branch current flowing to each power converter; a signal selection part which selects the composite current when the AC power system is normal or the branch current when the AC power system is in a disturbance state; and a current control part which controls a current command signal using output of the signal selection part as a current feedback signal. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
