Electric energy conversion device, electric energy conversion equipment and electric energy conversion method

The invention discloses an electric energy conversion device, electric energy conversion equipment and an electric energy conversion method. The device comprises a first coil, a second coil and a magnetic core, the first coil and the second coil are wound on different magnetic columns of the magnetic core to form a common-mode inductor, the magnetic core least comprises one magnetic column with agap, and the first coil and the second coil can form a differential-mode inductor through the magnetic column with the gap. The first coil and the second coil are wound on different magnetic columns of the magnetic core to form the common-mode inductor; the magnetic core comprises the magnetic column with the gap, and the magnetic column is used for forming the differential-mode inductor, i.e., the first coil and the second coil generate magnetic flux leakage through the air gap to form the differential-mode inductor; and the device with the common-mode inductor and the differential-mode inductor which are formed thro