Numerical modelling of an unbalanced short shunt induction generator usingfinite element method

This paper presents a model based on the 2D finite element method (FEM) whi ch can be used to study a self-excited induction generator in unbalanced mo des. In the proposed model, we take into account the magnetic non linearity of the iron by introducing a B(H) curve which is identified experimentally from magnetic materials. On the other hand, effects such as end windings a nd the short circuit ring are also taken into account using analytical expr essions. The coupling between electrical circuit and FE equations is introd uced After validating the model in steady and transient modes, zee will dis cuss the choice of the different capacitances and give simulated results of a specific unbalanced case.