Abstract
This paper assesses the electromagnetic (EM) and thermal behaviors of a triple redundant, 3x3-phase, permanent magnet assisted synchronous reluctance machine (PMASynRM) under short circuit (SC) involving a few strands across a number of turns. Directly coupled EM-thermal simulation based on 2D transient EM and 3D thermal model with aid of a scripting file is adopted for analyzing thermal behavior under the most severe inter-strand SC fault. The results provide a better understanding of more realistic SC behaviors in machines with stranded winding. It is shown that EM-thermal coupled simulations are necessary to access the machine thermal behavior under the fault conditions.
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