Dynamic Magnetic Modeling With Magnetization, Hysteresis, Eddy, and Displacement Currents
Year: 2026
Type: article
Abstract: Accurate modeling of magnetic behavior under diverse excitation conditions remain a longstanding challenge. To address this need, the MagNet challenge 2 was established as a benchmark problem to evaluate advanced modeling approaches for magnetic materials. We address the challenge using a physics-informed model, which features a small number of parameters and high interpretability. The magnetic flux density$B$and field strength$H$are mapped to displacement and force in the mechanical domain. Correspondingly, the nonlinear aspects of magnetic materials, such as saturation, pinning force, and eddy current, are captured via mechanical components, like springs, sliders, and dampers, respectively. There is one more type of components that seems not being reported previously. It is significant in capturing high-frequency (HF) phenomena and is thus meaningful for HF power electronics. In the mechanical domain, it can be interpreted as inertia. Two possible physical roots are provided and both of them relate to displacement current. The methods of prediction, parameter identification, and testing are reported. Last but not least, the proposed framework is readily vectorial and has potential for future integration into finite element analysis and circuit simulation tools.
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,645
OpenAlex ID: W7168221783