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Journal Articles

Analysis of maximum voltage transient of JT-60SA toroidal field coils in case of fast discharge

Novello, L.*; Cara, P.*; Coletti, A.*; Gaio, E.*; Maistrello, A.*; Matsukawa, Makoto; Philipps, G.*; Tomarchio, V.*; Yamauchi, Kunihito

IEEE Transactions on Applied Superconductivity, 26(2), p.4700507_1 - 4700507_7, 2016/03

 Times Cited Count:4 Percentile:32.33(Engineering, Electrical & Electronic)

Journal Articles

Reference design of the power supply system for the resistive-wall-mode control in JT-60SA

Ferro, A.*; Gaio, E.*; Novello, L.*; Matsukawa, Makoto; Shimada, Katsuhiro; Kawamata, Yoichi; Takechi, Manabu

Fusion Engineering and Design, 98-99, p.1053 - 1057, 2015/10

 Times Cited Count:2 Percentile:22.25(Nuclear Science & Technology)

Journal Articles

First switching network unit for the JT-60SA superconducting central solenoid

Lampasi, A.*; Zito, P.*; Coletti, A.*; Novello, L.*; Matsukawa, Makoto; Shimada, Katsuhiro; Burini, F.*; Kuate-Fone, Y.*; Taddia, G.*; Tenconi, S.*

Fusion Engineering and Design, 98-99, p.1098 - 1102, 2015/10

 Times Cited Count:7 Percentile:60.95(Nuclear Science & Technology)

Journal Articles

Design and realization of JT60-SA Fast Plasma Position Control Coils power supplies

Zito, P.*; Lampasi, A.*; Coletti, A.*; Novello, L.*; Matsukawa, Makoto; Shimada, Katsuhiro; Cinarelli, D.*; Portesine, M.*; Dorronsoro, A.*; Vian, D.*

Fusion Engineering and Design, 98-99, p.1191 - 1196, 2015/10

 Times Cited Count:9 Percentile:69.75(Nuclear Science & Technology)

Journal Articles

Analyses of the impact of connections' layout on the coil transient voltage at the Quench Protection Circuit intervention in JT-60SA

Maistrello, A.*; Gaio, E.*; Novello, L.*; Matsukawa, Makoto; Yamauchi, Kunihito

Fusion Engineering and Design, 98-99, p.1109 - 1112, 2015/10

 Times Cited Count:3 Percentile:32.14(Nuclear Science & Technology)

Journal Articles

Overview of the new magnet power supply systems of JT-60SA procured by EU

Novello, L.*; Baulaigue, O.*; Coletti, A.*; Dumas, N.*; Ferro, A.*; Gaio, E.*; Lampasi, A.*; Maistrello, A.*; Matsukawa, Makoto; Shimada, Katsuhiro; et al.

Fusion Engineering and Design, 98-99, p.1122 - 1126, 2015/10

 Times Cited Count:12 Percentile:79.22(Nuclear Science & Technology)

Journal Articles

Type tests of JT-60SA Fast Plasma Position Control Coil (FPPCC) power supplies

Zito, P.*; Lampasi, A.*; Novello, L.*; Matsukawa, Makoto; Shimada, Katsuhiro; Portesine, M.*; Fasce, F.*; Cinarelli, D.*; Dorronsoro, A.*; Vian, D.*

Proceedings of IEEE 15th International Conference on Environment and Electrical Engineering (IEEE-EEEIC 2015), p.156 - 160, 2015/06

Journal Articles

Design and implementation of four 20 kA, 5 kV hybrid switching networks for plasma ignition in the international tokamak JT-60SA

Burini, F.*; Kuate-Fone, Y.*; Taddia, G.*; Tenconi, S.*; Lampasi, A.*; Zito, P.*; Matsukawa, Makoto; Shimada, Katsuhiro; Coletti, A.*; Novello, L.*

Proceedings of 40th Annual Conference of the IEEE Industrial Electronics Society (IECON 2014), p.5035 - 5040, 2014/10

Journal Articles

Experimental qualification of the hybrid circuit breaker developed for JT-60SA quench protection circuit

Maistrello, A.*; Gaio, E.*; Ferro, A.*; Perna, M.*; Panizza, C.*; Soso, F.*; Novello, L.*; Matsukawa, Makoto; Yamauchi, Kunihito

IEEE Transactions on Applied Superconductivity, 24(3), p.3801505_1 - 3801505_5, 2014/06

 Times Cited Count:13 Percentile:57.25(Engineering, Electrical & Electronic)

Journal Articles

Full scale prototype of the JT-60SA quench protection circuits

Gaio, E.*; Maistrello, A.*; Barp, M.*; Perna, M.*; Coffetti, A.*; Soso, F.*; Novello, L.*; Matsukawa, Makoto; Yamauchi, Kunihito

Fusion Engineering and Design, 88(6-8), p.563 - 567, 2013/10

 Times Cited Count:13 Percentile:76.19(Nuclear Science & Technology)

Journal Articles

A Conceptual design study for the error field correction coil power supply in JT-60SA

Matsukawa, Makoto; Shimada, Katsuhiro; Yamauchi, Kunihito; Gaio, E.*; Ferro, A.*; Novello, L.*

Plasma Science and Technology, 15(3), p.257 - 260, 2013/03

 Times Cited Count:6 Percentile:30.65(Physics, Fluids & Plasmas)

To realize high performance plasmas in tokamak devices, error field correction (EFC) is one of the very important issues. Actually, error field correction coil is being planned in ITER using superconducting coils, while normal copper coils will be employed in JT-60SA. Similar coils are installed and under operation in many devices over the world. In the case of JT-60SA, EFC coils will be realized by 12 (or 18) sector coils installed inside the vacuum vessel. This paper describes a conceptual design study for the circuit configuration and control strategy of the power supply system of these EFC coils. In conclusion, to minimize the number of current feeders and semiconductor power devices, multi-phase inverter is the best solution not only from the cost merit but also from a view point of canceling the induced voltage of axisymmetric magnetic component.

Journal Articles

Minimization of reactive power fluctuation in JT-60SA magnet power supply

Shimada, Katsuhiro; Terakado, Tsunehisa; Yamauchi, Kunihito; Matsukawa, Makoto; Baulaigue, O.*; Coletti, R.*; Coletti, A.*; Novello, L.*

Plasma Science and Technology, 15(2), p.184 - 187, 2013/02

 Times Cited Count:0 Percentile:0.01(Physics, Fluids & Plasmas)

Journal Articles

Detailed analysis of the transient voltage in a JT-60SA PF coil circuit

Yamauchi, Kunihito; Shimada, Katsuhiro; Terakado, Tsunehisa; Matsukawa, Makoto; Coletti, R.*; Lampasi, A.*; Gaio, E.*; Coletti, A.*; Novello, L.*

Plasma Science and Technology, 15(2), p.148 - 151, 2013/02

 Times Cited Count:6 Percentile:30.65(Physics, Fluids & Plasmas)

Journal Articles

Final design of the quench protection circuits for the JT-60SA superconducting magnets

Gaio, E.*; Maistrello, A.*; Coffetti, A.*; Gargano, T.*; Perna, M.*; Novello, L.*; Coletti, A.*; Matsukawa, Makoto; Yamauchi, Kunihito

IEEE Transactions on Plasma Science, 40(3), p.557 - 563, 2012/03

 Times Cited Count:27 Percentile:79.85(Physics, Fluids & Plasmas)

Journal Articles

JT-60SA power supply system

Coletti, A.*; Baulaigue, O.*; Cara, P.*; Coletti, R.*; Ferro, A.*; Gaio, E.*; Matsukawa, Makoto; Novello, L.*; Santinelli, M.*; Shimada, Katsuhiro; et al.

Fusion Engineering and Design, 86(6-8), p.1373 - 1376, 2011/10

 Times Cited Count:15 Percentile:78.36(Nuclear Science & Technology)

Journal Articles

Overcurrent analyses in JT-60SA poloidal circuits due to plasma disruption and quench protection intervention

Novello, L.*; Gaio, E.*; Piovan, R.*; Takechi, Manabu; Ide, Shunsuke; Matsukawa, Makoto

Fusion Engineering and Design, 86(1), p.33 - 40, 2011/01

 Times Cited Count:9 Percentile:62.21(Nuclear Science & Technology)

Journal Articles

Optimization of plasma initiation scenarios in JT-60SA

Matsukawa, Makoto; Terakado, Tsunehisa; Yamauchi, Kunihito; Shimada, Katsuhiro; Cara, P.*; Gaio, E.*; Novello, L.*; Ferro, A.*; Coletti, R.*; Santinelli, M.*; et al.

Journal of Plasma and Fusion Research SERIES, Vol.9, p.264 - 269, 2010/08

Journal Articles

Conceptual design of the quench protection circuits for the JT-60SA superconducting magnets

Gaio, E.*; Novello, L.*; Piovan, R.*; Shimada, Katsuhiro; Terakado, Tsunehisa; Kurihara, Kenichi; Matsukawa, Makoto

Fusion Engineering and Design, 84(2-6), p.804 - 809, 2009/06

 Times Cited Count:17 Percentile:76.47(Nuclear Science & Technology)

This paper deals with the conceptual design of the Quench Protection Circuits (QPC) of JT-60SA which have to provide a fast removal of the energy stored in the superconducting coils in case of quench. The core of the QPC units is constituted by a dc current breaker, which diverts the coil current into a resistor for a fast machine de-energization. In this paper, a hybrid solution, composed of a mechanical bypass switch paralleled to a static switch based on Integrated Gate Commutated Thyristor (IGCT) technology, has been chosen and worked out; a pyrobreaker is added in series to the hybrid switch as a backup protection. The resulting design allows benefiting from the fast breaking and very low maintenance requirement of the static switches, besides maintaining the advantage of the much lower power losses of the mechanical bypass in normal operation.

Journal Articles

Status of JT-60SA tokamak under the EU-JA broader approach agreement

Matsukawa, Makoto; Kikuchi, Mitsuru; Fujii, Tsuneyuki; Fujita, Takaaki; Hayashi, Takao; Higashijima, Satoru; Hosogane, Nobuyuki; Ikeda, Yoshitaka; Ide, Shunsuke; Ishida, Shinichi; et al.

Fusion Engineering and Design, 83(7-9), p.795 - 803, 2008/12

 Times Cited Count:16 Percentile:74.37(Nuclear Science & Technology)

no abstracts in English

Oral presentation

Stability control for high-beta plasmas on JT-60SA

Matsunaga, Go; Takechi, Manabu; Sakurai, Shinji; Ide, Shunsuke; Matsukawa, Makoto; Oyama, Naoyuki; Aiba, Nobuyuki; Kurita, Genichi; Ferro, A.*; Gaio, E.*; et al.

no journal, , 

22 (Records 1-20 displayed on this page)