Power conversion device

A power conversion device in which a plurality of cell converters that perform power conversion are connected in series, each cell converter comprising:

• a switching element;
• a capacitor;
• a main circuit conductor connecting the switching element and the capacitor to each other;
• two external terminals connected to other ones of the cell converters;
• a bypass portion disposed between the two external terminals and subjected to bypass connection;
• a first conductor portion connecting one of the two external terminals and each of the main circuit conductor and the bypass portion to each other;
• and
• a second conductor portion connecting another one of the two external terminals and each of the main circuit conductor and the bypass portion to each other, wherein
• the first and second conductor portions are each formed in a bent shape between the main circuit conductor and the bypass portion so as to, with respect to a first direction which is a direction of a path from the main circuit conductor to the bypass portion, have a portion that extends in a second direction intersecting with the first direction,
• a first portion, of the first conductor portion, that extends in the second direction and a second portion, of the second conductor portion, that extends in the second direction are disposed so as to at least partially overlap with each other in a third direction that intersects with the first and second directions, and
• when current flows from the capacitor to the bypass portion, currents in a same direction flow in the first portion and the second portion.