Synchronous generator model taking into account the non-uniform saturation of the pole shoes

For the evaluation of modern electric power systems with regard to their behavior, weight, and reliability a novel modeling and simulation tools have been developed. The paper presents circuit model of synchronous generator taking into account both the non-sinusoidal distribution of the stator and rotor winding, and non-uniform saturation of the pole shoes. This model is suitable for simulation of both salient and no-salient pole generators. Winding function approach is used to define the self and mutual inductance which has enabled to take into account the non-sinusoidal distribution of stator and rotor windings. The equivalent airgap length distribution function is used to model the shape of the salient pole rotor and non-uniform saturation of the pole shoe. Simulation and experimental tests were carried out to validate this modeling method. The developed model can be used to analyze an autonomous power systems, in which a single generator has a significant impact on the power quality.