Abstract
A new approach to face the problem of dynamic hysteresis and assess extra losses in soft magnetic materials is investigated. Thanks to a spatial averaging technique and a variational principle, a dedicated formulation is derived. It takes into account microscopic magnetization mechanisms and domain wall motion-induced Joule losses. Implementation within the finite element method is discussed, and calculations are carried out for a 2-D geometry. The model provides first-order low-pass filtering properties.
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