Time domain models for fixed-speed induction generators

This paper presents a comparison of time-domain dynamic models used for a fixed-speed induction generator. Two types of the models are developed on the basis of 5^th order equations and 3^rd order equations. The models are constructed and implemented using MATLAB/Simulink. Case studies are performed with particular consideration on three-phase fault responses and connecting of capacitors at the stator of the induction generator. It is found that the results obtained from 5^th order model give more satisfactory transient responses, and should be used as a representation for the induction generator in power system transient studies.