Arc stability criteria in AC arc furnace and optimal converter topologies

Yongjoong Lee, Henrik Nordborg, Yongsug Suh, Peter Steimer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

24 Scopus citations

Abstract

In this paper, the fundamental features of the arc stability in nonferrous metal AC arc furnace have been investigated, from the converter point of view. Due to the limited access to the measured arc data from the arc furnaces, the advanced arc simulations of magnetohydrodynamics (MHD) and the well known Cassie-Mayr arc model have been extensively used. The MHD based arc simulation has been validated in the subcomponent level, for the free burning arc set up in the laboratory. The arc simulation predicted the arc voltage for different currents with the accuracy which satisfies engineering requirements. It has been shown that the arc current steepness at current zero determines the arc stability, and the associated peak arc resistance can be used as its quantitative measure. Based on the presented insight into the AC arc stability, a converter topology solution which realizes an optimal arc stability has been proposed. The main results presented in this paper provide a design guideline for the future AC arc furnace converter topology developments.

Original languageEnglish
Title of host publicationAPEC 2007 - 22nd Annual IEEE Applied Power Electronics Conference and Exposition
Pages1280-1286
Number of pages7
DOIs
StatePublished - 2007
Externally publishedYes
EventAPEC 2007 - 22nd Annual IEEE Applied Power Electronics Conference and Exposition - Anaheim, CA, United States
Duration: Feb 25 2007Mar 1 2007

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Conference

ConferenceAPEC 2007 - 22nd Annual IEEE Applied Power Electronics Conference and Exposition
Country/TerritoryUnited States
CityAnaheim, CA
Period02/25/0703/1/07

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