A rigorous analytical electromagnetic model of a Litz-wire planar winding geometry is presented here. The main objective was the analytical description of the internal structure achieved by setting up a three-dimensional model with parametrical equations. The Litz-wire geometry is used to develop the electromagnetic model of the structure, obtaining a simple circuit formulation of the problem, whose numerical solution allows tocompute all the currents in every strand and also the structure reactance. The comparison with solid-wire spiral is also presented in order to highlight the advantages of the rigorous modelling of Litz-wire structure. To validate this model, different configurations were simulated and compared with measurements.
Modelling of a Litz-wire planar winding geometry for an accurate reactance evaluation / Cerri, Graziano; Kovyryalov, Sergey; MARIANI PRIMIANI, Valter. - In: IET SCIENCE, MEASUREMENT & TECHNOLOGY. - ISSN 1751-8822. - 4:(2010), pp. 214-219. [10.1049/iet-smt.2009.0118]
Modelling of a Litz-wire planar winding geometry for an accurate reactance evaluation
CERRI, GRAZIANO;KOVYRYALOV, SERGEY;MARIANI PRIMIANI, Valter
2010-01-01
Abstract
A rigorous analytical electromagnetic model of a Litz-wire planar winding geometry is presented here. The main objective was the analytical description of the internal structure achieved by setting up a three-dimensional model with parametrical equations. The Litz-wire geometry is used to develop the electromagnetic model of the structure, obtaining a simple circuit formulation of the problem, whose numerical solution allows tocompute all the currents in every strand and also the structure reactance. The comparison with solid-wire spiral is also presented in order to highlight the advantages of the rigorous modelling of Litz-wire structure. To validate this model, different configurations were simulated and compared with measurements.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
