Title :
Medium frequency combined inverter for electroheat with improved starting arrangements
Author :
Chudnovsky, V. ; Axelrod, B. ; Shenkman, A.
Author_Institution :
Center for Technol. Educ., Tel Aviv Univ., Israel
fDate :
3/1/1996 12:00:00 AM
Abstract :
Current-fed parallel inverters used for induction heating sometimes fail to start. Simulation and measurements show the importance of the turn-off angle during start up. An auxiliary voltage-fed inverter operated in parallel with the main current-fed inverter obviates the difficulty and provides reliable starting behaviour. On the basis of the results a new model of the thyristor frequency converter (160 kW, 4.0 kHz) has been projected for industrial induction heating and melting applications
Keywords :
DC-AC power convertors; frequency convertors; induction heating; invertors; starting; thyristor convertors; 160 kW; 4 kHz; auxiliary voltage-fed inverter; current-fed parallel inverters; induction heating; measurements; melting applications; simulation; start up; thyristor frequency converter; turn-off angle;
Journal_Title :
Electric Power Applications, IEE Proceedings -
DOI :
10.1049/ip-epa:19960409
