Polowa metoda wyznaczania parametrów i charakterystyk maszyny synchronicznej

The paper presents field methods for determining electromagnetic parameters (inductances, resistances and time constants) of a synchronous generator mathematical model containing one equivalent damper circuit in each rotor axis. The magnetostatic and the electromagnetic harmonic field distributions calculated by the finite element method were used. Nonlinear characteristics of machine inductances were presented which illustrate the saturation effect. Particular attention were drawn to the problems of determining subtransient time constants of the generator.