Patent ID: 9712079
Date: 2017-07-18
CPC Classifications: H02M

Claim:
1. An electric power converter comprising: a switching unit that 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; a controller configured to control the switching unit to perform power conversion between DC power and AC power; and a second bidirectional switch that is disposed on a path between one pole of the DC power source or one pole of the DC load and the switching unit to perform connection and interruption between the one pole of the DC power source or the one pole of the DC load and the switching unit, wherein the controller turns on one of the plurality of first bidirectional switches connected between another pole of the DC power source and the AC load or between another pole of the DC load and the AC power source when turning off the second bidirectional switch, wherein the switching unit includes: the plurality of first bidirectional switches are disposed to connect each of the first to third DC nodes and each of the AC nodes, and a reactor is provided between the first DC node and the second DC node.