TY - JOUR
T1 - Temperature and Pressure Simulations of 66 kV 40 m HTS Cable System in Short-Circuit Current Accidents Compared with Experimental Results
AU - Takeda, Natsuko
AU - Yasui, Tetsuo
AU - Yokoo, Yusuke
AU - Agatsuma, Koh
AU - Ishiyama, Atsushi
AU - Wang, Xudong
AU - Masuda, Takato
AU - Morimura, Toshiya
AU - Mimura, Tomoo
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2017/6
Y1 - 2017/6
N2 - A numerical analysis program has been developed to simulate the transient temperature and pressure distribution in an high-temperature superconducting (HTS) power cable cooled by a forced flow of subcooled LN2 during a short-circuit current accident. This computer simulation program includes computations of temperature and pressure profiles not only in the HTS power cable itself, but also in the cooling system, including the circulation pump. In 2015, Sumitomo Electric Industries demonstrated a 66 kV 40 m model cable with a fault current test, during which the void between the copper conductors of the copper former was filled by insulation material. In this study, simulations of the model cable were performed by considering that LN2 is not absorbed in the copper former. This simulation was found to more precisely match experimental data by considering the rise in LN2 temperature at the inlet and transient value of the thermal conductivity of the dielectric layer.
AB - A numerical analysis program has been developed to simulate the transient temperature and pressure distribution in an high-temperature superconducting (HTS) power cable cooled by a forced flow of subcooled LN2 during a short-circuit current accident. This computer simulation program includes computations of temperature and pressure profiles not only in the HTS power cable itself, but also in the cooling system, including the circulation pump. In 2015, Sumitomo Electric Industries demonstrated a 66 kV 40 m model cable with a fault current test, during which the void between the copper conductors of the copper former was filled by insulation material. In this study, simulations of the model cable were performed by considering that LN2 is not absorbed in the copper former. This simulation was found to more precisely match experimental data by considering the rise in LN2 temperature at the inlet and transient value of the thermal conductivity of the dielectric layer.
KW - High-temperature superconducting power cable
KW - computer simulation
KW - fault current accident
KW - liquid nitrogen cooling
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U2 - 10.1109/TASC.2017.2656780
DO - 10.1109/TASC.2017.2656780
M3 - Article
AN - SCOPUS:85015248668
SN - 1051-8223
VL - 27
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 4
M1 - 7828030
ER -