The Mitigation of Eddy-Current Losses in Ferromagnetic Samples Produced by Laser Powder Bed Fusion

We study the use of topology optimization in design low-loss ferromagnetic core structures for additively manufactured electrical machines. The test case was a simple toroid with primary and secondary winding. A 2D axisymmetric finite element method model implemented toroid, optimized minimum losses maximum flux linkage. then modified additive manufacturing, samples were built via laser powder bed fusion. B-H characteristics measured several operation points. compared against an solid core, laminated evenly placed air gaps (i.e., grooves). results show that topology-optimized are on same level as considerably smaller than those which is considerable improvement to previous published works.