A power conversion device includes a first inverter connected to first ends of m (m is an integer equal to two or more) coil groups, a second inverter connected to second ends of the m coil groups, m−1 separation relay circuits connected between two adjacent coil groups of the m coil groups, m−1 first neutral point relay circuits provided between two adjacent coil groups of the first inverter side of each of the m−1 separation relay circuits, and m−1 second neutral point relay circuits provided between two adjacent coils of the second inverter side of each of the m−1 separation relay circuits.