135330 20260217205535.0 doi 10.1109/TMAG.2024.3395924 sideral 138618 ART-2024-138618 eng Carretero, Claudio Universidad de Zaragoza (orcid)0000-0001-7901-9174 Normalized nonlinear impedance boundary condition in anhysteretic magnetic material for eddy current problems 2024 Access copy available to the general public Unrestricted Numerical simulations of induction heating systems often assume that the properties of the induction load are linear. Thus, its electrical behavior is described by an equivalent impedance which exhibits frequency dispersion but remains independent of the excitation level. Although deriving such solutions is computationally complex, the use of the impedance boundary condition (IBC) provides high-quality results for linear media. This boundary condition replaces the effects of media with rapidly varying fields by a ratio between their tangential components at the surface. However, in typical induction loads, magnetic saturation of the material causes phenomena of dependence of the properties on the current level. The precise formulation of such an IBC can only be performed considering linear media. This paper proposes calculating a nonlinear excitation level-dependent IBC numerically, considering the saturation dependence of the magnetic properties given by a Langevin function BH-loop. A normalized form of the nonlinear IBC will be obtained from the equation governing this type of behavior, thereby reducing the computational cost of the solution. The usefulness of the proposed nonlinear IBC will be validated by comparing it with results obtained from conventional time domain simulations of a typical induction heating system. info:eu-repo/grantAgreement/EUR/AEI/CPP2021-008938 info:eu-repo/grantAgreement/EUR/AEI/TED2021-129274B-I00 info:eu-repo/grantAgreement/ES/ISCIII/PI21-00440 info:eu-repo/grantAgreement/ES/MICINN-AEI/PDC2021-120898-I00 info:eu-repo/grantAgreement/ES/MICINN/PID2019-103939RB-I00 info:eu-repo/grantAgreement/ES/MICINN/PID2022-136621OB-I00 info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 1.9 2024 PHYSICS, APPLIED 134 / 187 = 0.717 2024 Q3 T3 ENGINEERING, ELECTRICAL & ELECTRONIC 227 / 368 = 0.617 2024 Q3 T2 0.729 2024 Electronic, Optical and Magnetic Materials 2024 Q2 Electrical and Electronic Engineering 2024 Q2 4.8 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Acero, Jesús Universidad de Zaragoza (orcid)0000-0001-7207-5536 Burdio, José M. Universidad de Zaragoza (orcid)0000-0002-9655-5531 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 5008 785 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Tecnología Electrónica 23, 1 (2024), [11 pp.] IEEE trans. magn. IEEE TRANSACTIONS ON MAGNETICS 0018-9464 2256128 http://zaguan.unizar.es/record/135330/files/texto_completo.pdf Versión publicada 3532520 http://zaguan.unizar.es/record/135330/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:135330 articulos driver 2026-02-17-20:34:03 ARTICLE