Title :
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
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;
Conference_Titel :
AFRICON, 1996., IEEE AFRICON 4th
Conference_Location :
Stellenbosch
Print_ISBN :
0-7803-3019-6
DOI :
10.1109/AFRCON.1996.563107
