NDLI: A power conversion system for ac furnace with enhanced arc stability

Content Provider	IEEE Xplore Digital Library
Author	Yongsug Suh Hyeoncheol Park Yongjoong Lee Steimer, P.
Copyright Year	2009
Description	Author affiliation: Paul Scherrer Institute, Accelerator Operation and Developments, CH-5232 Villigen PSI, Switzerland (Yongjoong Lee) \|\| Chonbuk Natl. Univ., Dept. of Elec. Eng., 664-14 Duckjin-dong Jeonju, Korea (Yongsug Suh; Hyeoncheol Park) \|\| ABB Switzerland Ltd, Power Electronics and MV Drives, 5300 Turgi, Switzerland (Steimer, P.)
Abstract	This paper proposes a criterion for ac arc stability and an optimal converter topology for a non-ferrous metal ac arc furnace. The ac arc furnace rated for 36kA/224V/21MW has been investigated. The key parameters of modified Cassie-Mayr arc model have been calculated by the electromagnetic and flow simulations for electric arc. The used arc simulation model has been validated by a laboratory free-burning arc setup. It has been shown that the steepness of arc current at zero-crossing determines the arc stability, and the associated peak arc resistance can be used as its quantitative measure. Among the evaluated three power converter systems, the forced commutated inverter topology with a six-step modulation realizes the steepest current at zero-crossing resulting in the best arc stability. The proposed converter topology having a high degree of arc stability is expected to bring about reliable operation of ac arc furnace and enhanced productivity of the total furnace system.
Starting Page	2043
Ending Page	2050
File Size	729230
Page Count	8
File Format	PDF
ISBN	9781424428939
DOI	10.1109/ECCE.2009.5316181
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Furnaces Current measurement Stability criteria Laboratories Electromagnetic modeling Topology Power conversion Electrical resistance measurement Power system modeling Electric resistance
Content Type	Text
Resource Type	Article

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