Physical parameters identification of synchronous generators by a dynamic state estimator

This paper presents a novel dynamic state estimation methodology for the estimation of the parameters of a synchronous generator. The synchronous generator model is a physically based model, that is, the model is in terms of the actual self and mutual inductances of the generator windings as a function of rotor position. No transformations are applied or model reduction techniques. The dynamic state estimation uses measurements of terminal voltages and currents of phases A, B, C of stator windings and field winding, along with the mechanical shaft speed. The proposed approach is applied to a 18 kV, 825 MVA synchronous generator. The results are validated by numerical experiments.