High-frequency current-source inverters using SI thyristors for induction heating applications

Author

Peng, Fang Zheng ; Akagi, Hirofumi ; Nabae, Akira ; Sugawara, Shogo

Author_Institution

Fac. of Eng., Technol. Univ. of Nagaoka, Niigata, Japan

Volume

25

Issue

1

fYear

1989

Firstpage

172

Lastpage

180

Abstract

An optimum control scheme for current-source inverters using static induction thyristors in various high-frequency induction heating applications is described. The optimum control scheme implies an optimal control of the firing angle and extinction angle relative to the output voltage in order to minimize the surge voltage and the switching loss during the commutation interval. The tailing current problems of the SI thyristors which significantly influence the optimum firing angle and extinction angle are discussed theoretically. The validity of the optimum control scheme is verified by experiments with a 78 kHz, 17.4 kW (290 V, 60 A) inverter

Keywords

induction heating; invertors; optimal control; thyristor applications; 17.4 kW; 290 V; 60 A; 78 kHz; commutation; current-source inverters; extinction angle; firing angle; induction heating; optimal control; static induction thyristors; thyristor applications; Anodes; Frequency; Inductance; Inverters; MOSFETs; Optimal control; Surges; Switching loss; Thyristors; Voltage control;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.18887

Filename

18887