POWER CONVERSION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a power conversion apparatus configured to convert an AC voltage into an optional AC voltage by using a plurality of single-phase converters and capable of uniformly controlling voltages of capacitors of the respective single-phase converters.SOLUTION: In the power conversion apparatus for performing power conversion between three-phase AC input voltages and three-phase AC output voltages, cell converters 30x each including a capacitor C1, a converter for converting an AC voltage into a DC voltage and an inverter for converting a DC voltage into an AC voltage are arranged in respective phases, and converter control means 611 for controlling the converter of each phase is provided with power balance control means 612. The power balance control means 612 includes reverse phase component current common calculation means 613 for calculating reverse phase component current command values Idn*, Iqn* to be superposed to current command values so that voltages of the capacitors C1 of respective phases become uniform.