TY - JOUR
T1 - Investigation of the Relationship Between Unbalanced Current Distribution and Twist Pitches in Cable-in-Conduit Conductors
AU - Sato, Ryota
AU - Abe, Kichizo
AU - Kobayashi, Hiroyasu
AU - Saotome, Hideo
AU - Miyagi, Daisuke
AU - Tsuda, Makoto
AU - Hamajima, Takataro
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2024/8/1
Y1 - 2024/8/1
N2 - Unbalanced current distribution in cable-in-conduit conductors (CICCs) is a phenomenon that shows the dependence of stability performance on the ramp rate (ramp-rate limitation) in fusion magnets. In this study, we investigated the effect of the twist pitches of the cable stages in a CICC on the current distribution among its strands. We calculated the self-inductance of each strand and the mutual inductance between strands based on a geometrical model that analytically computes the strand's trajectory. Then, we created an equivalent circuit model and calculated the current distribution in the CICC. The current distribution was analyzed for CICCs with different twist pitch configurations. The result shows that combining the cabling stage twist pitches affects the current distribution.
AB - Unbalanced current distribution in cable-in-conduit conductors (CICCs) is a phenomenon that shows the dependence of stability performance on the ramp rate (ramp-rate limitation) in fusion magnets. In this study, we investigated the effect of the twist pitches of the cable stages in a CICC on the current distribution among its strands. We calculated the self-inductance of each strand and the mutual inductance between strands based on a geometrical model that analytically computes the strand's trajectory. Then, we created an equivalent circuit model and calculated the current distribution in the CICC. The current distribution was analyzed for CICCs with different twist pitch configurations. The result shows that combining the cabling stage twist pitches affects the current distribution.
KW - Cable-in-conduit conductor
KW - equivalent circuit model
KW - ramp-rate limitation
KW - strand trajectory
KW - twist pitch
KW - unbalanced current distribution
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U2 - 10.1109/TASC.2024.3363109
DO - 10.1109/TASC.2024.3363109
M3 - Article
AN - SCOPUS:85184815767
SN - 1051-8223
VL - 34
SP - 1
EP - 5
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 5
M1 - 4802605
ER -