POWER CONVERSION DEVICE

摘要

A power conversion device (3) that directly converts polyphase AC power to AC power is disclosed. A conversion circuit has a plurality of first switching elements (311, 313, 315) and a plurality of second switching elements (312, 314, 316) that are connected to the phases (R, S, T) of the polyphase AC and can switch the flow of current between two directions. The power conversion device is also provided with the following: input lines (R, S, T) connected to the input terminals of the switching elements; and output lines (P, N) connected to the output terminals of the switching elements. The output terminals of the first switching elements are laid out in a single line, as are the output terminals of the second switching elements. Also, the line formed by the output terminals of the first switching elements is parallel to the line formed by the output terminals of the second switching elements. The abovementioned output lines are located vertically below than the abovementioned input lines.