Title :
Power losses distribution in the litz-wire winding of an inductor for an induction cooking appliance
Author :
Hernandez, P. ; Monterde, F. ; Burdio, J.M. ; Garcia, J.R. ; Llorente, S.
Author_Institution :
Dpto. Ingenieria Electronica y Comunicaciones, Zaragoza Univ., Spain
Abstract :
In this paper the squared-field-derivative method for calculating the losses in the winding of an inductor for induction cooking is derived. It is based on a 2D finite-element eddy-current simulation. For a given geometry just one simulation is needed for the analysis. The equivalent resistance of the winding and the optimum number of strands for a wire diameter and frequency are obtained. The distribution of the resistance inside the winding is obtained too, in order to localize the hot spots of the inductor. Also how the resistance of the winding change due to temperature caused by the variation of the conductivity of the winding material and the permeability of the materials which form the load (cookware).
Keywords :
eddy currents; electrical conductivity; finite element analysis; induction heating; inductors; losses; ovens; windings; 2D finite-element eddy-current simulation; equivalent resistance; hot spots; induction cooking appliance; inductor; litz-wire winding; losses; materials permeability; power losses distribution; squared-field-derivative method; winding; wire diameter; Analytical models; Conducting materials; Finite element methods; Frequency; Geometry; Home appliances; Inductors; Solid modeling; Temperature; Wire;
Conference_Titel :
IECON 02 [Industrial Electronics Society, IEEE 2002 28th Annual Conference of the]
Print_ISBN :
0-7803-7474-6
DOI :
10.1109/IECON.2002.1185432
