Eddy Current Analysis of Litz Wire Using Homogenization-Based FEM in Conjunction With Integral Equation

Eddy Current Analysis of Litz Wire Using Homogenization-Based FEM in Conjunction With Integral Equation

A new method is introduced to evaluate the macroscopic permeability of a litz wire which is composed of stranded conductors. In this method, an integral equation is solved for the complex magnetization in the litz wire generated due to the proximity effect. The macroscopic permeability computed from...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2018-03, Vol.54 (3), p.1-4
Main Authors: Hiruma, Shingo, Otomo, Yoshitsugu, Igarashi, Hajime
Format: Article
Language:eng
Subjects:
Conductors
Eddy currents
Finite element analysis
Finite element method
Homogenization
Homogenization method
integral equation
Integral equations
litz wire
macroscopic permeability
Magnetic domains
Magnetism
Magnetization
Ollendorff formula
Permeability
Proximity effect (electricity)
Wire
Wires
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Summary:A new method is introduced to evaluate the macroscopic permeability of a litz wire which is composed of stranded conductors. In this method, an integral equation is solved for the complex magnetization in the litz wire generated due to the proximity effect. The macroscopic permeability computed from the magnetization is used in the homogenization-based finite-element analysis of eddy currents in a litz-wire coil. It is shown that the wire twist has a little effect on the complex permeability.
ISSN:0018-9464
1941-0069