Continuum Modeling of Inductor Magnetic Hysteresis and Eddy Currents in Resonant Circuits
Abstract
This paper presents a highfidelity finiteelement 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 quasistatic hysteresis component and a dynamic eddy current component. The Preisach model is used to describe the quasistatic 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 finiteelement framework combining the effects of hysteresis and eddy currents in a unified dynamic simulation. The finiteelement model of the toroid is used as a highorder 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:

 Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
 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 (EE3V)
 OSTI Identifier:
 1546525
 Grant/Contract Number:
 AC0500OR22725
 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 21686777
 Publisher:
 IEEE
 Country of Publication:
 United States
 Language:
 English
 Subject:
 42 ENGINEERING; Magnetic hysteresis; Integrated circuit modeling; RLC circuits; Current measurement; Inductors; Eddy currents; Frequency measurement; magnetic losses; finiteelement 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. https://www.osti.gov/servlets/purl/1546525.
@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 highfidelity finiteelement 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 quasistatic hysteresis component and a dynamic eddy current component. The Preisach model is used to describe the quasistatic 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 finiteelement framework combining the effects of hysteresis and eddy currents in a unified dynamic simulation. The finiteelement model of the toroid is used as a highorder 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}
}