TY - GEN
T1 - Arc stability criteria in AC arc furnace and optimal converter topologies
AU - Lee, Yongjoong
AU - Nordborg, Henrik
AU - Suh, Yongsug
AU - Steimer, Peter
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=46449098036&partnerID=8YFLogxK
U2 - 10.1109/APEX.2007.357680
DO - 10.1109/APEX.2007.357680
M3 - Conference contribution
AN - SCOPUS:46449098036
SN - 1424407133
SN - 9781424407132
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1280
EP - 1286
BT - APEC 2007 - 22nd Annual IEEE Applied Power Electronics Conference and Exposition
T2 - APEC 2007 - 22nd Annual IEEE Applied Power Electronics Conference and Exposition
Y2 - 25 February 2007 through 1 March 2007
ER -