POWER CONVERSION DEVICE

摘要

A power conversion device (3) that directly converts polyphase AC power to AC power. A conversion circuit has a plurality of switching elements (311, 313, 315, 312, 314, 316) that are connected to the phases (R, S, T) of the aforementioned polyphase AC and can switch the flow of current between two directions. At least three capacitors (821-826) are connected between the phases of the conversion circuit. Said three capacitors are laid out at the respective vertices of a triangle (400) in a plane parallel to the plane containing the abovementioned switching elements. This makes it possible to reduce the wiring distance between the capacitors and the switching elements.