On the design of a high power IGBT series resonant inverter for induction forging applications

Author

Dede, E.J. ; Jordán, J. ; Esteve, V. ; Navarro, A.E. ; Ferreres, A.

Author_Institution

G.H. Elin Int., Valencia, Spain

Volume

1

fYear

1996

fDate

24-27 Sep 1996

Firstpage

206

Abstract

Basically the are two different types of converters for high power induction heating applications. On one side, current-fed inverters are normally used for applications with low ohmic inductor like hardening and tube welding. On the other hand voltage-fed inverters, in which the heating inductor is series compensated are preferred in applications with high ohmic inductor like melting or forging. In this paper a 50 kW/50 kHz IGBT series resonant inverter with ZVS behaviour is presented. Explanations are also given to prevent transistors failure in the case of a short-circuit of the heating inductor

Keywords

forging; induction heating; inductors; insulated gate bipolar transistors; invertors; power semiconductor switches; power transistors; resonant power convertors; 50 kHz; 50 kW; current-fed inverters; hardening; high ohmic inductor like forging; high ohmic inductor like melting; high power IGBT series resonant inverter; high power induction heating; induction forging applications; low ohmic inductor; low ohmic inductor like welding; series compensated inductor; short-circuit; tube welding; voltage-fed inverters; zero voltage switching; Capacitors; Circuits; Feedback loop; Heating; Inductors; Insulated gate bipolar transistors; Resonance; Resonant inverters; Telephony; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

AFRICON, 1996., IEEE AFRICON 4th

Conference_Location

Stellenbosch

Print_ISBN

0-7803-3019-6

Type

conf

DOI

10.1109/AFRCON.1996.563107

Filename

563107