Design, development and operation of superconducting system for LHD

IF 0.3 1区艺术学 0 MUSIC NINETEENTH CENTURY MUSIC Pub Date : 2002-11-07 DOI:10.1109/FUSION.2002.1027663

T. Mito, A. Nishimura, S. Yamada, S. Imagawa, K. Takahata, N. Yanagi, R. Maekawa, H. Chikaraishi, H. Tamura, A. Iwamoto, S. Hamaguchi, Y. Hishinuma, T. Satow, O. Motojima

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引用次数: 8

Abstract

The Large Helical Device (LHID) of National Institute for Fusion Science (NIFS) is a heliotron-type experimental fusion device which has the capability of confining current-less and steady-state plasma. The primary feature on the engineering aspect of LHD is using superconducting coils for magnetic confinement: two pool boiling helical coils (H1, H2) and three pairs of forced-flow poloidal coils (IV, IS, OV) wound with cable-in-conduit conductors (CICC). The maximum magnetic field at plasma center is 3 T in the Phase I experiment and 4 T in Phase II, while its stored energy becomes 0.9 GJ and 1.6 GJ, respectively. These coils are connected to the power supplies by superconducting bus-lines with their nominal current of 31.3 kA. The construction of LHD started in 1991 and was completed by the end of 1997. During this period, extensive research and development were conducted to complete a large-scale superconducting system. The plasma experiment started on March 31, 1998 and four plasma experimental campaigns have been performed successfully in three years. The fifth cycle operation started in August 2001. The knowledge which has been acquired during the design, development, and operation of superconducting system for LHD, is summarized.

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LHD超导系统的设计、开发与运行

美国国家聚变科学研究所(NIFS)的大型螺旋装置(LHID)是一种具有约束无电流稳态等离子体的氦氖型实验聚变装置。LHD工程方面的主要特点是使用超导线圈进行磁约束:两个池沸腾螺旋线圈(H1, H2)和三对强制流动极向线圈(IV, is, OV)，缠绕着电缆导管导体(CICC)。第一期实验等离子体中心最大磁场为3 T，第二期实验为4 T，其存储能量分别为0.9 GJ和1.6 GJ。这些线圈通过超导母线连接到电源，其标称电流为31.3 kA。LHD的建设于1991年开始，并于1997年底完成。在此期间，进行了广泛的研究和开发，以完成大规模的超导系统。等离子体实验于1998年3月31日开始，三年内成功进行了四次等离子体实验。第五个周期运作于2001年8月展开。总结了LHD超导系统在设计、开发和运行过程中所获得的知识。

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NINETEENTH CENTURY MUSIC MUSIC-

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期刊介绍： 19th-Century Music covers all aspects of Western art music between the mid-eighteenth and mid-twentieth centuries. We welcome--in no particular order--considerations of composers and compositions, styles, performance, historical watersheds, cultural formations, critical methods, musical institutions, ideas, and topics not named on this list. Our aim is to publish contributions to ongoing conversations at the leading edge of musical and multidisciplinary scholarship.

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