Reactors (6a) to (6d) and current sensors (7a) to (7a) are connected to the input terminals and the output terminals of the switching power supplies (3a) and (3b), respectively, which share a DC voltage source (4) and are connected in parallel. 7d), the voltage output periods of both switching power supplies (3a) and (3b) are shifted from each other by a half cycle (T / 2), and the currents (IL1) to (IL4) at the input terminals and the output terminals are Since the control circuit (8) for controlling each detected current value to match each current command value is provided, an extra shunt that can flow between the switching power supplies can be suppressed by using a common DC voltage source, and an inclination can be obtained. A power conversion device capable of suppressing current ripple flowing in the magnetic field coil (5) is obtained. 直流電圧源（４）を共通とし互いに並列接続されたスイッチング電源（３ａ）、（３ｂ）の、各入力端、各出力端にそれぞれリアクトル（６ａ）～（６ｄ）と電流センサ（７ａ）～（７ｄ）とを備え、両スイッチング電源（３ａ）、（３ｂ）の電圧出力期間を互いに半周期（Ｔ／２）ずらすとともに、各入力端、各出力端の電流（ＩＬ１）～（ＩＬ４）に関し、各電流検出値が各電流指令値に一致するよう制御する制御回路（８）を備えたので、直流電圧源を共通とすることでスイッチング電源間に流れ得る余分な分流を抑制し、かつ、傾斜磁場コイル（５）に流れる電流リプルを抑制することが可能となる電力変換装置が得られる。
