ELECTRIC POWER CONVERSION DEVICE

To provide an electric power conversion device which can reduce a loss at the time of a power supply to a bi-direction.SOLUTION: In an electric power conversion device which can supply a power to a bi-direction, a control part makes a chopper circuit that is operated at the time of supplying a power of a first direction and a chopper circuit that is operated at the time of supplying the power of a second direction be different, and makes the number of chopper circuits that is operated at the time of supplying the power of the first direction and the number of chopper circuits that is operated at the time of supplying the power of the second direction be different, in the case where a power supply amount of the first direction and a power supply amount of the second direction are different.SELECTED DRAWING: Figure 2 【課題】双方向の電力供給時の損失を低減することが出来る電力変換装置を提供することを目的とする。【解決手段】双方向への電力供給が可能な電力変換装置であって、第一の方向の電力供給量と第二の方向の電力供給量とが異なる場合に、制御部は、第一の方向の電力供給時に動作させるチョッパ回路と第二の方向の電力供給時に動作させるチョッパ回路を異ならせるとともに第一の方向の電力供給時に動作させるチョッパ回路の数と第二の方向の電力供給時に動作させるチョッパ回路の数とを異ならせる。【選択図】図２