An AC generator comprises a rotor and a stator having a three-phase
winding. A three-phase inverter is connected to the three-phase winding.
Here, the three-phase winding comprises at least two independent
three-phase windings. Switching elements for respective phases of the
three-phase inverter are connected in parallel by the number of the
independent three-phase windings, and in-phase windings are individually
connected to their parallel switching elements.