Abstract:
This paper aims to investigate iron losses in a
surface mounted permanent magnet motor. For this, an
overview of common iron loss models has been initially
presented. Then, three different loss models have been
applied for the computation of iron losses in the studied
machine. The reason of testing several loss models is to
discuss their advantages and disadvantages and to discuss
their applicability, stability and efficiency. To perform this
study, finite element method is used. Indeed, a considerable
attention has been paid to the dynamic modeling of the
rotating machine. Afterward, the employed models have
been incorporated into the finite element analysis. Finally,
the obtained results are compared and analyzed. Based on
the obtained results, on one hand, it is revealed that
traditional technique is fast and stable while the hysteresis
models necessitates a lot of time and requires an adequate
iterative procedure. On the other hand, it is shown that
traditional technique is simplistic unlike the hysteresis
models which are more general and accurate.
