Magnetic Performance of Eddy Current Suppressing Structures in Additive Manufacturing

Additively manufactured soft-magnetic components are inherently bulky leading to significant eddy current losses when applied to electrical machines. Prior works have addressed this issue by implementing structures based on the Hilbert space-filling curve which include eddy current suppressing gaps,...

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Bibliographic Details
Published in:	Actuators 2024-03, Vol.13 (3), p.94
Main Authors:	Klein, Carsten, May, Christopher, Nienhaus, Matthias
Format:	Article
Language:	eng
Subjects:	3D printing Additive manufacturing Current loss eddy current losses Eddy currents Electrical equipment and supplies Electrical machinery Electromagnetism fill factor Finite element method finite-element Hilbert curve Hilbert space Magnetic fields Optimization soft-magnetic components
Online Access:	Get full text
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Summary:	Additively manufactured soft-magnetic components are inherently bulky leading to significant eddy current losses when applied to electrical machines. Prior works have addressed this issue by implementing structures based on the Hilbert space-filling curve which include eddy current suppressing gaps, thereby reducing the fill factor of the soft-magnetic component. The present research aims at investigating a number of space-filling curves in addition to sheets in order to find the optimal eddy current suppressing structure from an electromagnetic point of view. By means of both analysis and finite-element simulation, it was shown that sheets are superior at minimizing eddy current losses while space-filling curves excel at maximizing the fill factor.
ISSN:	2076-0825 2076-0825