Modeling of Saturation in Salient Pole Synchronous Machines

The design of high performance motors must take into account not only the steady state but also practically inevitable dynamic state. In such conditions an accurate predetermination of the parameters and constructive solution by modeling and simulation of the dynamic state, becomes a mandatory step. In this aim, in the present paper an enhanced mathematical model of the synchronous machine is briefly presented. We proposed to consider especially the effects of the magnetic saturation, with preservation of the fundamental harmonic of the magnetic field, and saliency. The model assumptions are specified and it is shown that they ensure and improved representation of the main field saturation and saliency. The enhanced model proves to be useful and versatile and is recommended for the analysis of complex dynamical processes when a high accuracy is required. The qualitative and quantitative results show an important number of valuable information in the design stage of the synchronous machine.