| Abstract |
A synchronous machine with two three phase armature winding systems, fed by two converters, is investigated by simulations and measurements. In order to analyse the commutation and the additional losses, produced in the rotor by the harmonics of the armature currents, a model is derived, that regards the coupling of the two armature systems and represents the rotor in a wide frequency range correctly. With standstill response tests the model is identified for a 4MVA synchronous machine with solid iron rotor and complete damper winding. For the given machine numerical calculations are made and compared with results obtained experimentally. |
