TURBO-GENERATOR MODEL WITH MAGNETIC SATURATION

Abstract

In this paper a mathematical model of turbo-generators is published. It is suitable for their large signal dynamical analysis. The equations are written in a d-q coordinate system fixed to the rotor. One stator and two rotor windings are used in both directions. The effects of iron saturation are approximately taken into account as regards the main field inductances only. The model includes the mechanical transient process as well. By adding to the eight-time-constant model of the generator the model of the excitation regulator, various transient processes can be simulated, among them some that would be undesirable to investigate experimentally due to safety considerations or to the danger of damages, e.g. a synchronization in an erroneous phase position.