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Title: Continuum Modeling of Inductor Magnetic Hysteresis and Eddy Currents in Resonant Circuits

Abstract

This paper presents a high-fidelity finite-element modeling technique for magnetic hysteresis and eddy current losses in toroid inductors. The method is based on the separation of ferromagnetic loss characteristics into two components: a quasi-static hysteresis component and a dynamic eddy current component. The Preisach model is used to describe the quasi-static magnetic hysteresis behavior of the core, providing strong guarantees on the reproducibility of the experimentally measured characteristics. This model is used to represent the magnetic field constitutive relationships within a finite-element framework combining the effects of hysteresis and eddy currents in a unified dynamic simulation. The finite-element model of the toroid is used as a high-order inductor model coupled to a resonant circuit simulation. The modeling technique is validated through experimental measurements on two different series RLC circuits. The first circuit is based on an M19 electrical steel toroid having resonant frequency near 200 Hz. The second circuit is based on a T38 ferrite toroid having a resonant frequency near 10 kHz. The models agree closely with the measured voltages, currents, and losses. The models also successfully predict discontinuities in the measured frequency responses due to the existence of bistable operating regimes.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Karma Automotive LLC, Irvine, CA (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1546525
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
IEEE Journal of Emerging and Selected Topics in Power Electronics
Additional Journal Information:
Journal Volume: 7; Journal Issue: 3; Journal ID: ISSN 2168-6777
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
Magnetic hysteresis; Integrated circuit modeling; RLC circuits; Current measurement; Inductors; Eddy currents; Frequency measurement; magnetic losses; finite-element methods

Citation Formats

Pries, Jason, Gurpinar, Emre, Tang, Lixin, and Burress, Timothy A. Continuum Modeling of Inductor Magnetic Hysteresis and Eddy Currents in Resonant Circuits. United States: N. p., 2019. Web. doi:10.1109/JESTPE.2019.2908894.
Pries, Jason, Gurpinar, Emre, Tang, Lixin, & Burress, Timothy A. Continuum Modeling of Inductor Magnetic Hysteresis and Eddy Currents in Resonant Circuits. United States. doi:10.1109/JESTPE.2019.2908894.
Pries, Jason, Gurpinar, Emre, Tang, Lixin, and Burress, Timothy A. Thu . "Continuum Modeling of Inductor Magnetic Hysteresis and Eddy Currents in Resonant Circuits". United States. doi:10.1109/JESTPE.2019.2908894.
@article{osti_1546525,
title = {Continuum Modeling of Inductor Magnetic Hysteresis and Eddy Currents in Resonant Circuits},
author = {Pries, Jason and Gurpinar, Emre and Tang, Lixin and Burress, Timothy A.},
abstractNote = {This paper presents a high-fidelity finite-element modeling technique for magnetic hysteresis and eddy current losses in toroid inductors. The method is based on the separation of ferromagnetic loss characteristics into two components: a quasi-static hysteresis component and a dynamic eddy current component. The Preisach model is used to describe the quasi-static magnetic hysteresis behavior of the core, providing strong guarantees on the reproducibility of the experimentally measured characteristics. This model is used to represent the magnetic field constitutive relationships within a finite-element framework combining the effects of hysteresis and eddy currents in a unified dynamic simulation. The finite-element model of the toroid is used as a high-order inductor model coupled to a resonant circuit simulation. The modeling technique is validated through experimental measurements on two different series RLC circuits. The first circuit is based on an M19 electrical steel toroid having resonant frequency near 200 Hz. The second circuit is based on a T38 ferrite toroid having a resonant frequency near 10 kHz. The models agree closely with the measured voltages, currents, and losses. The models also successfully predict discontinuities in the measured frequency responses due to the existence of bistable operating regimes.},
doi = {10.1109/JESTPE.2019.2908894},
journal = {IEEE Journal of Emerging and Selected Topics in Power Electronics},
number = 3,
volume = 7,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
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This content will become publicly available on April 11, 2020
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