Development of power combination system for high-power and long-pulse ICRF heating in LHD

被引：6

作者：

Saito, K. ^{[1
]}

Wang, S. J. ^{[2
]}

Wi, H. H. ^{[2
]}

Kim, H. J. ^{[3
]}

Kamio, S. ^{[1
]}

Nomura, G. ^{[1
]}

Seki, R. ^{[1
,4
]}

Seki, T. ^{[1
]}

Kasahara, H. ^{[1
]}

Mutoh, T. ^{[5
]}

机构：

[1] Natl Inst Nat Sci, Natl Inst Fus Sci, 322-6 Oroshi Cho, Toki, Gifu 5095292, Japan

[2] Natl Fus Res Inst, 169-148 Gwahak Ro, Daejeon 34133, South Korea

[3] ITER Org, Route Vinon Verdon,CS 90 046, F-13067 St Paul Les Durance, France

[4] SOKENDAI Grad Univ Adv Studies, Dept Fus Sci, 322-6 Oroshi Cho, Toki, Gifu 5095292, Japan

[5] Chubu Univ, 1200 Matsurnoto Cho, Kasugai, Aichi 4878501, Japan

来源：

FUSION ENGINEERING AND DESIGN | 2019年 / 146卷

关键词：

ICRF heating; Power combination; FAIT antenna; LHD; ANTENNA;

D O I：

10.1016/j.fusengdes.2018.12.039

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

In the Large Helical Device (LHD), the development of high-power and long-pulse Ion Cyclotron Range of Frequencies (ICRF) heating system is ongoing. The developed Field-Aligned-Impedance-Transforming (FAIT) antenna has the potential for high-power injection of more than 1.8 MW. Here, to achieve this injection power, a power combination system was developed. An optimized power combiner was designed by repeated simulations, and then was fabricated and installed in the ICRF transmission system. Control of the power and the phase of incident waves into the input ports of the power combiner is important for the power combination. Therefore, a real-time control system was developed, and prompt reduction of power loss was demonstrated. As a result, combined powers of more than 2 MW for 6 s and 1 MW for 10 min were successfully achieved.

引用

页码：256 / 260

页数：5

共 9 条

[1] The ASDEX Upgrade ICRF system:: Operational experience and developments [J].

Faugel, H ;

Angene, P ;

Becker, W ;

Braun, E ;

Bobkov, VV ;

Eckert, B ;

Fischer, F ;

Hartmann, DA ;

Heilmaier, G ;

Kneidl, J ;

Noterdaeme, JM ;

Siegl, G ;

Würsching, E .

FUSION ENGINEERING AND DESIGN, 2005, 74 (1-4) :319-324

[2] Improvement of the phase regulation between two amplifiers feeding the inputs of the 3dB combiner in the ASDEX-Upgrade ICRH system [J].

Grine, D. ;

Pompon, F. ;

Faugel, H. ;

Funfgelder, H. ;

Noterdaeme, J. M. ;

Koch, R. .

RADIO FREQUENCY POWER IN PLASMAS: PROCEEDINGS OF THE 19TH TOPICAL CONFERENCE, 2011, 1406

[3] RF design and tests on a broadband, high-power coaxial quadrature hybrid applicable to ITER ICRF transmission line system for load-resilient operations [J].

Kim, Hae Jin ;

Wang, Son Jong ;

Park, Byoung Ho ;

Kwak, Jong-Gu ;

Hillairet, Julien ;

Choi, Jin Joo .

FUSION ENGINEERING AND DESIGN, 2015, 96-97 :498-502

[4] Real-time impedance matching system for ICRF heating in LHD [J].

Saito, K. ;

Takahashi, C. ;

Yokota, M. ;

Nomura, G. ;

Shimpo, F. ;

Seki, T. ;

Kasahara, H. ;

Kumazawa, R. ;

Yoon, J. S. ;

Kwak, J. G. ;

Zhao, Y. ;

Mutoh, T. ;

Komori, A. .

FUSION ENGINEERING AND DESIGN, 2008, 83 (2-3) :245-248

[5] Field-aligned-impedance-transforming ICRF antenna in the LHD [J].

Saito, K. ;

Seki, T. ;

Kasahara, H. ;

Seki, R. ;

Kamio, S. ;

Nomura, G. ;

Mutoh, T. .

FUSION ENGINEERING AND DESIGN, 2015, 96-97 :583-588

[6] Design of optimized impedance transformer for ICRF antenna in LHD [J].

Saito, K. ;

Seki, T. ;

Kasahara, H. ;

Seki, R. ;

Kumazawa, R. ;

Nomura, G. ;

Shimpo, F. ;

Mutoh, T. .

FUSION ENGINEERING AND DESIGN, 2013, 88 (6-8) :1025-1029

[7] Performance of Impedance Transformer for High-Power ICRF Heating in LHD [J].

Saito, Kenji ;

Seki, Testuo ;

Kasahara, Hiroshi ;

Seki, Ryosuke ;

Kamio, Shuji ;

Nomura, Goro ;

Mutoh, Takashi .

10TH ASIA PLASMA AND FUSION ASSOCIATION CONFERENCE (APFA), 2017, 823

[8] Steady-state amplifier at megawatt level for LHD ICRF heating [J].

Seki, T ;

Kumazawa, R ;

Mutoh, T ;

Shimpo, F ;

Nomura, G ;

Watari, T ;

Saito, K ;

Zhao, YP .

FUSION SCIENCE AND TECHNOLOGY, 2001, 40 (03) :253-264

[9] Extension of the operational regime of the LHD towards a deuterium experiment [J].

Takeiri, Y. ;

Morisaki, T. ;

Osakabe, M. ;

Yokoyama, M. ;

Sakakibara, S. ;

Takahashi, H. ;

Nakamura, Y. ;

Oishi, T. ;

Motojima, G. ;

Murakami, S. ;

Ito, K. ;

Ejiri, A. ;

Imagawa, S. ;

Inagaki, S. ;

Isobe, M. ;

Kubo, S. ;

Masamune, S. ;

Mito, T. ;

Murakami, I. ;

Nagaoka, K. ;

Nagasaki, K. ;

Nishimura, K. ;

Sakamoto, M. ;

Sakamoto, R. ;

Shimozuma, T. ;

Shinohara, K. ;

Sugama, H. ;

Watanabe, K. Y. ;

Ahn, J. W. ;

Akata, N. ;

Akiyama, T. ;

Ashikawa, N. ;

Baldzuhn, J. ;

Bando, T. ;

Bernard, E. ;

Castejon, F. ;

Chikaraishi, H. ;

Emoto, M. ;

Evans, T. ;

Ezumi, N. ;

Fujii, K. ;

Funaba, H. ;

Goto, M. ;

Goto, T. ;

Gradic, D. ;

Gunsu, Y. ;

Hamaguchi, S. ;

Hasegawa, H. ;

Hayashi, Y. ;

Hidalgo, C. .

NUCLEAR FUSION, 2017, 57 (10)

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