Temperature and Pressure Simulations of 66 kV 40 m HTS Cable System in Short-Circuit Current Accidents Compared with Experimental Results

Natsuko Takeda, Tetsuo Yasui, Yusuke Yokoo, Koh Agatsuma, Atsushi Ishiyama, Xudong Wang, Takato Masuda, Toshiya Morimura, Tomoo Mimura

研究成果査読

3 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号7828030
ジャーナルIEEE Transactions on Applied Superconductivity
27
4
DOI
出版ステータスPublished - 2017 6

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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