Power conversion device

Abstract

An object is to suppress size increase and cost increase in a power conversion device that includes three or more single-phase inverters. A power conversion device includes: three or more single-phase inverters which convert DC power to AC power; and a control unit which controls the single-phase inverters. The three or more single-phase inverters are connected in series. Where absolute values of output voltages of the single-phase inverters are defined as voltage absolute values, the three or more single-phase inverters include at least two first common single-phase inverters which output first common voltages having the same voltage absolute value, and at least one single-phase inverter which outputs voltage having a smaller voltage absolute value than that of the first common voltages.

Dependencies are inferred from the claim text.