Field-circuit coupled system simulation of a PMSM servo drive and comparison with measurements

While analytical descriptions of the electrical machine perform very well with respect to computational time giving acceptable results when compared to measurements, one may sacrifice the low computational effort in order to obtain more accurate results by including a Finite Element Analysis of the electrical machine. With this approach it is possible to study effects such as saturation and mutual influences in combination with the power electronics and the control. In this paper such a field-circuit coupled simulation of a PMSM servo drive is performed and the results are discussed. Furthermore, the different components are introduced and explained.