Title :
Equivalent complex permeability and conductivity of Litz wire in wireless power transfer systems
Author :
Etemadrezaei, Mohammad ; Lukic, Srdjan M.
Author_Institution :
ECE Dept., North Carolina State Univ., Raleigh, NC, USA
Abstract :
In this paper the skin and proximity effect losses for Litz wire winding used in wireless power transfer system is calculated using exact 2-D method. Based on those losses the equivalent complex permeability and conductivity are calculated for each strand in the bundle. Due to specific properties of Litz wire, the whole bundle is homogenized using isotropic complex permeability and conductivity and is simulated numerically in Finite Element (FE) verifying the analytical and experimental results.
Keywords :
finite element analysis; inductive power transmission; permeability; wires (electric); 2D method; FEM; Litz wire conductivity; Litz wire winding; equivalent complex permeability; finite element method; isotropic complex permeability; proximity effect losses; skin effect losses; wireless power transfer systems; Conductivity; Conductors; Magnetic resonance imaging; Materials; Permeability; Skin; Wires;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2012 IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
978-1-4673-0802-1
Electronic_ISBN :
978-1-4673-0801-4
DOI :
10.1109/ECCE.2012.6342286
