A power conversion device comprising: a pulse width modulating means for converting three-phase voltage commands to a PWM pulse by comparing the voltage commands with a triangular wave carrier signal; a power converter for converting between a DC voltage and a three-phase AC voltage by driving a switching element according to the PWM pulse; a current detecting means for detecting a pulsed current flowing through a DC bus conductor of a main circuit in the power converter; and a voltage command correcting means adapted for correcting voltage commands for a maximum phase and a minimum phase so that two line voltages between the maximum phase and an intermediate phase and between the intermediate phase and the minimum phase are each equal to or larger than a predetermined value, the maximum phase being a phase having the largest value when momentary values of the three-phase voltage commands are arranged in descending order, the intermediate phase being a phase having the second largest value, the minimum phase being a phase having the third largest value; wherein the voltage command correcting means is further adapted for correcting also the voltage command for the intermediate phase under a predetermined condition, wherein the voltage command correcting means is adapted to operate as follows: when the voltage command value for the maximum phase and the minimum phase is corrected, a correction amount for a side on which the absolute value of a voltage correction value is larger is set to a reduced correction amount, and the intermediate phase is corrected by a remainder of the correction amount. a pulse width modulating means for converting three-phase voltage commands to a PWM pulse by comparing the voltage commands with a triangular wave carrier signal; a power converter for converting between a DC voltage and a three-phase AC voltage by driving a switching element according to the PWM pulse; a current detecting means for detecting a pulsed current flowing through a DC bus conductor of a main circuit in the power converter; and a voltage command correcting means adapted for correcting voltage commands for a maximum phase and a minimum phase so that two line voltages between the maximum phase and an intermediate phase and between the intermediate phase and the minimum phase are each equal to or larger than a predetermined value, the maximum phase being a phase having the largest value when momentary values of the three-phase voltage commands are arranged in descending order, the intermediate phase being a phase having the second largest value, the minimum phase being a phase having the third largest value; wherein the voltage command correcting means is further adapted for correcting also the voltage command for the intermediate phase under a predetermined condition, wherein the voltage command correcting means is adapted to operate as follows: when the voltage command value for the maximum phase and the minimum phase is corrected, a correction amount for a side on which the absolute value of a voltage correction value is larger is set to a reduced correction amount, and the intermediate phase is corrected by a remainder of the correction amount.