Behaviour of series and parallel resonant inverters for induction heating in short-circuit conditions

Author

Dede, E.J. ; Jordan, J. ; Esteve, Vicente ; Espi, J.M. ; Casans, S.

Author_Institution

GH Electrotermia S.A., Valencia, Spain

Volume

2

fYear

2000

fDate

2000

Firstpage

645

Abstract

Series and parallel resonant inverters are the common structures in high power industrial generators for induction heating applications. In practical working conditions, short-circuiting of the heating coil is very common, producing normally overvoltages that can damage the power transistors of the inverter if no special precautions are taken. The aim of the paper is to show the mechanism of how overvoltages are generated under short-circuit conditions of the heating coil for series as parallel inverters

Keywords

DC-AC power convertors; induction heating; invertors; power inductors; power semiconductor switches; power supplies to apparatus; resonant power convertors; short-circuit currents; switching circuits; applications; heating coil shorting; high-power industrial generators; induction heating; overvoltage generation; parallel resonant inverters; power transistors; series resonant inverters; short-circuit conditions; Capacitors; Coils; Frequency; Heating; Inductance; Induction generators; Resonance; Resonant inverters; Switches; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International

Conference_Location

Beijing

Print_ISBN

7-80003-464-X

Type

conf

DOI

10.1109/IPEMC.2000.884570

Filename

884570