Comparison between Simulation and Experimental Results of Liquid Nitrogen Coolant Distribution in a 66-kV 40-m Model HTS Power Cable System Experiencing Short-Circuit Accidents

Daichi Horita, Koh Agatsuma, Atsushi Ishiyama, Takato Masuda, Toshiya Morimura, Tomoo Mimura

    研究成果: Article

    抄録

    In this study, a computer program was developed to simulate the temperature and pressure distributions of a liquid nitrogen (LN) coolant in a higherature superconducting (HTS) power cable. This program is important for realizing a practical HTS power cable. According to the Japanese criterion for a 66-kV power-transmission system, in a worst case short-circuit accident, a fault current of 31.5 kA may flow in a 66-kV cable system for 2 s. In addition, when a short-circuit accident occurs, the temperature and pressure of an LN coolant increase rapidly The temperature behaviors of the cable cores and coolant were analyzed by solving the nonlinear partial differential heat-conduction equations in the cable cores by considering the energy balance of the heat flow by using the finite-difference method. Moreover, the pressure behaviors of the coolant in a cooling system were analyzed, considering the density and volume behaviors of the coolant. The simulation results for the 66-kV 40-m model cable qualitatively reproduced the experimental results satisfactorily.

    元の言語English
    記事番号5401305
    ジャーナルIEEE Transactions on Applied Superconductivity
    29
    発行部数5
    DOI
    出版物ステータスPublished - 2019 8 1

    Fingerprint

    short circuits
    coolants
    Liquid nitrogen
    accidents
    liquid nitrogen
    Short circuit currents
    Coolants
    cables
    Accidents
    Cables
    Cable cores
    simulation
    Electric fault currents
    Energy balance
    Power transmission
    Cooling systems
    power transmission
    Heat conduction
    Finite difference method
    Pressure distribution

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Electrical and Electronic Engineering

    これを引用

    @article{6ea8e25f898e4200a764167613694770,
    title = "Comparison between Simulation and Experimental Results of Liquid Nitrogen Coolant Distribution in a 66-kV 40-m Model HTS Power Cable System Experiencing Short-Circuit Accidents",
    abstract = "In this study, a computer program was developed to simulate the temperature and pressure distributions of a liquid nitrogen (LN) coolant in a higherature superconducting (HTS) power cable. This program is important for realizing a practical HTS power cable. According to the Japanese criterion for a 66-kV power-transmission system, in a worst case short-circuit accident, a fault current of 31.5 kA may flow in a 66-kV cable system for 2 s. In addition, when a short-circuit accident occurs, the temperature and pressure of an LN coolant increase rapidly The temperature behaviors of the cable cores and coolant were analyzed by solving the nonlinear partial differential heat-conduction equations in the cable cores by considering the energy balance of the heat flow by using the finite-difference method. Moreover, the pressure behaviors of the coolant in a cooling system were analyzed, considering the density and volume behaviors of the coolant. The simulation results for the 66-kV 40-m model cable qualitatively reproduced the experimental results satisfactorily.",
    keywords = "Cooling system, fault current, higherature superconducting power cable, LN coolant, saturation temperature",
    author = "Daichi Horita and Koh Agatsuma and Atsushi Ishiyama and Takato Masuda and Toshiya Morimura and Tomoo Mimura",
    year = "2019",
    month = "8",
    day = "1",
    doi = "10.1109/TASC.2019.2895676",
    language = "English",
    volume = "29",
    journal = "IEEE Transactions on Applied Superconductivity",
    issn = "1051-8223",
    publisher = "Institute of Electrical and Electronics Engineers Inc.",
    number = "5",

    }

    TY - JOUR

    T1 - Comparison between Simulation and Experimental Results of Liquid Nitrogen Coolant Distribution in a 66-kV 40-m Model HTS Power Cable System Experiencing Short-Circuit Accidents

    AU - Horita, Daichi

    AU - Agatsuma, Koh

    AU - Ishiyama, Atsushi

    AU - Masuda, Takato

    AU - Morimura, Toshiya

    AU - Mimura, Tomoo

    PY - 2019/8/1

    Y1 - 2019/8/1

    N2 - In this study, a computer program was developed to simulate the temperature and pressure distributions of a liquid nitrogen (LN) coolant in a higherature superconducting (HTS) power cable. This program is important for realizing a practical HTS power cable. According to the Japanese criterion for a 66-kV power-transmission system, in a worst case short-circuit accident, a fault current of 31.5 kA may flow in a 66-kV cable system for 2 s. In addition, when a short-circuit accident occurs, the temperature and pressure of an LN coolant increase rapidly The temperature behaviors of the cable cores and coolant were analyzed by solving the nonlinear partial differential heat-conduction equations in the cable cores by considering the energy balance of the heat flow by using the finite-difference method. Moreover, the pressure behaviors of the coolant in a cooling system were analyzed, considering the density and volume behaviors of the coolant. The simulation results for the 66-kV 40-m model cable qualitatively reproduced the experimental results satisfactorily.

    AB - In this study, a computer program was developed to simulate the temperature and pressure distributions of a liquid nitrogen (LN) coolant in a higherature superconducting (HTS) power cable. This program is important for realizing a practical HTS power cable. According to the Japanese criterion for a 66-kV power-transmission system, in a worst case short-circuit accident, a fault current of 31.5 kA may flow in a 66-kV cable system for 2 s. In addition, when a short-circuit accident occurs, the temperature and pressure of an LN coolant increase rapidly The temperature behaviors of the cable cores and coolant were analyzed by solving the nonlinear partial differential heat-conduction equations in the cable cores by considering the energy balance of the heat flow by using the finite-difference method. Moreover, the pressure behaviors of the coolant in a cooling system were analyzed, considering the density and volume behaviors of the coolant. The simulation results for the 66-kV 40-m model cable qualitatively reproduced the experimental results satisfactorily.

    KW - Cooling system

    KW - fault current

    KW - higherature superconducting power cable

    KW - LN coolant

    KW - saturation temperature

    UR - http://www.scopus.com/inward/record.url?scp=85062881596&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=85062881596&partnerID=8YFLogxK

    U2 - 10.1109/TASC.2019.2895676

    DO - 10.1109/TASC.2019.2895676

    M3 - Article

    VL - 29

    JO - IEEE Transactions on Applied Superconductivity

    JF - IEEE Transactions on Applied Superconductivity

    SN - 1051-8223

    IS - 5

    M1 - 5401305

    ER -