Journal of Electrical Engineering : Volume 19 / 2019 - Edition : 1

Iron Loss Computation of a Permanent Magnet Motor: FEA-Based Comparative Study Between Different Models

Authors:
Mel Hajer
Ali Mansouri
Trabelsi Hafedh
Domain:
electrical machines and drives
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.
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