Power conversion apparatus

A power conversion apparatus comprising:

• a plurality of power conversion units including at least a first power conversion unit having a plurality of semiconductor switching elements and converting AC power into DC power and a second power conversion unit having a plurality of semiconductor switching elements and converting DC power into AC power;
• a common bus bar;
• and
• a plurality of unit bus bars provided so as to correspond to the plurality of power conversion units respectively and connecting each DC side of the plurality of power conversion units to the common bus bar;
• wherein
• each of the power conversion units includes a casing having a first surface on which a first outer plate of a magnetic material is arranged, and the first outer plate is arranged in a vicinity of a corresponding unit bus bar and faces the corresponding unit bus bar with a gap so that an inductance value of the corresponding unit bus bar is increased to an inductance value capable of suppressing an inflow of a ripple current from another power conversion unit in the power conversion apparatus.