Mathematical Model of an Asynchronous Generator Taking the Iron Losses into Account

摘要

A mathematical model of a three-phase asynchronous generator that takes the iron losses into account is developed. The iron losses are represented in the form of electrical losses in a special resistor. This resistor is connected to a supplementary (fictitious) stator winding. The effect of magnetic core saturation is taken into account using coefficients inverse to the static and dynamic inductances. Computer programs written in the MS Fortran PowerStation 4.0 environment are presented. Calculated voltage waveforms during a self-excitation process are shown. The external characteristics of the generator are given.