Kabushiki Kaisha Yaskawa Denki

Yutaro Ihara

Katsutoshi Yamanaka

Takashi Kuboyama

Sadao Ishii

Tsuyoshi Higuchi

An electric power converter according to an embodiment includes a switching unit, a controller, and a second bidirectional switch. The switching unit includes a plurality of first bidirectional switches disposed between a DC power source and an AC load or between a DC load and an AC power source. The controller controls the switching unit to perform power conversion between DC power and AC power. When turning off the second bidirectional switch disposed on a path between one pole of the DC power source or the DC load and the switching unit, the controller turns on the first bidirectional switch connected between the other pole of the DC power source and the AC load or between the other pole of the DC load and the AC power source.

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Fukuoka, Japan

Yutaro Ihara