DocumentCode :
1408734
Title :
A series resonant converter for arc-striking applications
Author :
Ferreira, Jan A. ; Roux, Johannes A.
Author_Institution :
Fac. of Electr. Eng., Delft Univ. of Technol., Netherlands
Volume :
45
Issue :
4
fYear :
1998
fDate :
8/1/1998 12:00:00 AM
Firstpage :
585
Lastpage :
592
Abstract :
Initiation of a plasma conduction state requires a relatively large voltage to ionize the gas. A new version of the series resonant converter is proposed that uses the magnetizing inductance of the transformer for resonance. This converter is not suitable for most power supply applications, but the unique load characteristics associated with plasma loads make this type of converter well suited for arc striking, while allowing safe operation during the plasma state. A feature of the resonant converter is that the controller need not be complex, thus making it suitable for application in competitive industrial systems. Possible transformer configurations are investigated, which include an air core and a number of ferrite cored transformers. The series resonant converter with the best-suited transformer is verified experimentally in a tungsten inert gas welding application
Keywords :
arc welding; inductance; magnetisation; resonant power convertors; transformer cores; transformers; air core transformer; arc-striking applications; ferrite cored transformers; gas ionisation; industrial systems; magnetizing inductance; plasma conduction state initiation; safe operation; series resonant converter; transformer configurations; tungsten inert gas welding application; Control systems; Electrical equipment industry; Ferrites; Inductance; Industrial control; Magnetic resonance; Plasma applications; Plasma properties; Power supplies; Transformer cores;
fLanguage :
English
Journal_Title :
Industrial Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0046
Type :
jour
DOI :
10.1109/41.704886
Filename :
704886
Link To Document :
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