Approach of saturated induction machine modeling by means of HG-diagram

This work presents a new approach of saturated induction machine modeling based on the H-G diagram describing the variation of saturation state inside the machine. Only three parameters are instantaneously determined by a plotted H-G diagram for each saturation point. The simulation results obtained by this new approach are compared to the conventional induction machine modeling with and without the cross-saturation effect. The results of the comparison shows that the proposed method has clear advantages with its simplicity and accuracy especially when the IM is at normal working conditions or during the starting up phase