Nonlinear diffusion of electromagnetic fields and excess eddy current losses

Journal Article · Thu Apr 01 04:00:00 EST 1999 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.369139· OSTI ID:336625

Mayergoyz, I; Serpico, C ^[1]

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1. Electrical Engineering Department, University of Maryland, College Park, Maryland 20742 (United States)

The purpose of the paper is to demonstrate through analytical calculations that excess eddy current losses can be (at least in part) explained by the peculiar nature of nonlinear diffusion of electromagnetic fields in magnetically nonlinear conducting laminations. This peculiar nature of nonlinear diffusion leads to the breakdown of the classical {open_quotes}uniformity assumption{close_quotes} for distribution of magnetic flux density even for low frequencies, and this results in the appearance of excess eddy current losses. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 336625
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 85; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AC LOSSES
EDDY CURRENTS
ELECTROMAGNETIC FIELDS
HYSTERESIS
MAGNETIC FLUX
NONLINEAR PROBLEMS