(electro) Electrical Dimensioning Of Inverter-Inductor-Load System In Induction Heating Of ic Plates As Load.pdf

PERIODICAPOLYTECHNICA SER. EL. ENG. VOL. 43, NO. 2, PP. 91–100(1999)ELECTRICAL DIMENSIONINGOFINVERTER-INDUCTOR-LOAD SYSTEMIN INDUCTIONHEATINGOF IC PLATES AS LOADLászló KOLLERand Gy?rgy TEVANDepartment of High Voltage Engineering and EquipmentBudapest University of Technology and EconomicsH–1521 Budapest, Hungarye-mail: ******@: (36-1-) 463-27-80Received: Dec. 10, 1999AbstractAn important practical ?eld of induction heating is the heating of ic plates. Asigni?cantpart of the heating arrangement is a medium-frequency – so called length-?eld – heating inductor. It issupplied by a medium-frequency inverter of serial resonance circuit. The paper presents the detaileddimensioning method of the inductor–load system, based on approximating putations,together with the interaction between that and the inverter. It gives puted results for a :induction heating, heating of ic plates, dimensioning inductors and . IntroductionAn important practical solution of the problem described in the title, the heating ofplastic covered steel plates, was dealt with by presentation (KOLLERand TEVAN,1998). These are manufactured in such a way, that the zincous steel plates whosetemperature is increased to 120...200?C, are covered by a plastic foil by a produc-tion line, throughwhich one or more bandshape plates with adepth of ... a width of max.