Matrix converter with active damping for LC grid filter

摘要

A power conversion apparatus (1) includes a power converter (10), an LC filter (11), and a controller (20). The power converter (1) is disposed between an AC power source (2) and a load (3). The LC filter (11) is disposed between the AC power source (2) and the power converter (10). The controller (20) controls the power converter (10) to perform power conversion control between the AC power source (2) and the load (3). The controller (20) includes a command generator (31), an oscillation component acquirer (32), a regulator (33), and an actuator (35). The command generator (31) generates an input current command (I' O_rst ) including a command of an input current of the power converter. The oscillation component acquirer (31) acquires an oscillation component (ˆ†I C ) of a current flowing through a capacitor of the LC filter (11). The regulator (33) regulates the input current command based on the oscillation component acquired by the oscillation component acquirer (32). The actuator (35) controls the power converter (10) based on the input current command (I' O_rst ) regulated by the regulator (33).