A generator system includes a permanent magnet synchronous generator, a high-frequency matrix converter, a center-tapped high-frequency transformer and a full-bridge converter. An output port of the permanent magnet synchronous generator is connected to a three-phase input of the high-frequency matrix converter. Positive and negative output poles of the high-frequency matrix converter are connected to a primary side of the center-tapped high-frequency transformer, The primary side of the high-frequency transformer is connected to a center tap and then connected to the middle pole of the center-tapped high-frequency matrix converter, and the secondary side of the center-tapped high-frequency transformer is connected to the midpoint of the bridge arms of the full-bridge converter. A midpoint of the input bridge arm of the full-bridge converter is connected to the secondary side of the center-tapped high-frequency transformer, and an output side of the full-bridge converter is connected with a DC load.