| 摘要 |
In relation to a three-phase power converter that is formed with three clusters, each of which is a serial body including one or a plurality of unit cells, a circuit system and control method used by the three-phase power converter to output negative-phase sequence currents are provided. In a power converter that has a delta-connected cascade multi-level converter (CMC) linked to a power supply system, the CMC being formed by delta-connecting series circuit, each of which is formed with a reactor and a cluster, the cluster being a serial body formed with one or a plurality of unit cells, a positive-phase sequence reactive current and a negative-phase sequence current caused by an unbalanced load linked to the power supply system are substantially offset by a positive-phase sequence reactive current and a negative-phase sequence current that are simultaneously output by the power converter. |
