Simple resistance calculation in Litz-wire planar windings for induction cooking appliances

被引:80
作者
Acero, J [1 ]
Hernández, PJ
Burdío, JM
Alonso, R
Barragán, LA
机构
[1] Univ Zaragoza, Dept Ingn Electr & Comun, Zaragoza 50018, Spain
[2] BSH Electrodomest, Bosch & Siemens Home Appliances Grp, Zaragoza 50059, Spain
[3] Univ Zaragoza, Dept Fis Aplicada, Zaragoza 50018, Spain
关键词
home appliances; induction heating; litz wires; resistance measurements; temperature dependence;
D O I
10.1109/TMAG.2005.844844
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present a simple method to calculate the winding resistance of a litz-wire inductor in an induction cooking appliance, taking into account eddy-current losses, including conduction losses and proximity-effect losses. The method, which uses numerical calculation of the magnetic field, can be used to determine the optimum number of strands in the litz wire. The effects of the temperature on the winding total resistance are included in the calculation. We have built a prototype to verify the calculation method and its limitations. We consider the accuracy limits of the method.
引用
收藏
页码:1280 / 1288
页数:9
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