Three phase machine, apparatus and method for supplying a electrical network

A DC power source (10,12) is connected to an inverter circuit with transistors (T1-4), diodes (D1-4) and a capacitor (C1). It feeds three-phase AC to slip-rings (8) connected to the rotor (6) of the three-phase generator (2). The three-phase current (Is) from the stator (16) of the generator is connected to a three-phase electrical power network (4) via a rectifier (20) and a converter circuit (24) with a DC link.