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Installation, Commissioning and Tests of Four Fast Switching Units of up to 20 kA for the JT-60SA Nuclear Fusion Experiment

Author

Listed:
  • Alessandro Lampasi

    (Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Via Enrico Fermi, 45, 00044 Frascati, Italy)

  • Filippo Burini

    (OCEM Power Electronics, Via della Solidarietà, 2/1/Località Crespellano, Valsamoggia, 40056 Bologna, Italy)

  • Giuseppe Taddia

    (OCEM Power Electronics, Via della Solidarietà, 2/1/Località Crespellano, Valsamoggia, 40056 Bologna, Italy)

  • Sandro Tenconi

    (OCEM Power Electronics, Via della Solidarietà, 2/1/Località Crespellano, Valsamoggia, 40056 Bologna, Italy)

  • Makoto Matsukawa

    (National Institutes for Quantum and Radiological Science and Technology (QST), Mukoyama 801-1, Naka-shi 311-0193, Ibaraki-ken, Japan)

  • Katsuhiro Shimada

    (National Institutes for Quantum and Radiological Science and Technology (QST), Mukoyama 801-1, Naka-shi 311-0193, Ibaraki-ken, Japan)

  • Luca Novello

    (Fusion for Energy (F4E), Boltzmannstrasse 2, 85748 Garching, Germany)

  • Antti Jokinen

    (Fusion for Energy (F4E), Boltzmannstrasse 2, 85748 Garching, Germany)

  • Pietro Zito

    (Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Via Enrico Fermi, 45, 00044 Frascati, Italy)

Abstract

The nuclear fusion project JT-60SA is presently under construction in Naka (Japan) as a joint collaboration between Europe and Japan, within the framework of the Broader Approach Agreement. According to such agreement, the various JT-60SA systems are supplied by European and Japanese institutions. In particular, the Italian Agency ENEA was in charge for the procurement of the four Switching Network Units (SNUs) for the JT-60SA Central Solenoid (CS). The main SNU function is to interrupt a DC current up to 20 kA in a short time (less than 1 ms) in order to produce an overvoltage of up to 5 kV, crucial to generate and sustain the fusion plasma. The SNU design, manufacturing and factory test activities have been completed in 2016. After the delivery in Naka, the four SNUs have been installed and successfully commissioned in 2017. After an overview on the main technical characteristics of the SNUs and the key aspects of their design, this paper describes the activities performed on-site, highlighting the results obtained during the final acceptance tests and comparing them with the design simulation and the factory test results.

Suggested Citation

  • Alessandro Lampasi & Filippo Burini & Giuseppe Taddia & Sandro Tenconi & Makoto Matsukawa & Katsuhiro Shimada & Luca Novello & Antti Jokinen & Pietro Zito, 2018. "Installation, Commissioning and Tests of Four Fast Switching Units of up to 20 kA for the JT-60SA Nuclear Fusion Experiment," Energies, MDPI, vol. 11(4), pages 1-21, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:996-:d:142194
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    References listed on IDEAS

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    1. Alessandro Lampasi & Giuseppe Maffia & Franco Alladio & Luca Boncagni & Federica Causa & Edmondo Giovannozzi & Luigi Andrea Grosso & Alessandro Mancuso & Paolo Micozzi & Valerio Piergotti & Giuliano R, 2016. "Progress of the Plasma Centerpost for the PROTO-SPHERA Spherical Tokamak," Energies, MDPI, vol. 9(7), pages 1-24, June.
    2. Mitsuru Kikuchi, 2010. "A Review of Fusion and Tokamak Research Towards Steady-State Operation: A JAEA Contribution," Energies, MDPI, vol. 3(11), pages 1-49, November.
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    Cited by:

    1. Adam Jan Zwierzyński & Wojciech Teper & Rafał Wiśniowski & Andrzej Gonet & Tomasz Buratowski & Tadeusz Uhl & Karol Seweryn, 2021. "Feasibility Study of Low Mass and Low Energy Consumption Drilling Devices for Future Space (Mining Surveying) Missions," Energies, MDPI, vol. 14(16), pages 1-17, August.

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