Nuclear Engineering and Technology

  • 제56권1호
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  • Pages.216-221
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  • 2024
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Design of power and phase feedback control system for ion cyclotron resonance heating in the Experimental Advanced Superconducting Tokamak

  • L.N. Liu (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • W.M. Zheng (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • X.J. Zhang (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • H. Yang (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • S. Yuan (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • Y.Z. Mao (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • W. Zhang (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • G.H. Zhu (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • L. Wang (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • C.M. Qin (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • Y.P. Zhao (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • Y. Cheng (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • K. Zhang (Institute of Plasma Physics, Chinese Academy of Sciences)
  • 투고 : 2023.02.23
  • 심사 : 2023.09.18
  • 발행 : 2024.01.25
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초록

Ion cyclotron range of frequency (ICRF) heating system is an important auxiliary heating method in the experimental Advanced Superconducting Tokamak (EAST). In EAST, several megawatts of power are transmitted with coaxial transmission lines and coupled to the plasma. For the long pulse and high power operation of the ICRF waves heating system, it is very important to effectively control the power and initial phase of the ICRF signals. In this paper, a power and phase feedback control system is described based on field programmable gate array (FPGA) devices, which can realize complicated algorithms with the advantages of fast running and high reliability. The transmitted power and antenna phase are measured by a power and phase detector and digitized. The power and phase feedback control algorithms is designed to achieve the target power and antenna phase. The power feedback control system was tested on a dummy load and during plasma experiments. Test results confirm that the feedback control system can precisely control ICRF power and antenna phase and is robust during plasma variations.

키워드

과제정보

The authors would like to thank the technical staff of the EAST group at the Institute of Plasma Physics for their helpful support during this work. This work was supported by the Development Program of China under Grant Nos. 2019YFE03070000, 2019YFE03070003 and 2022YFE03190200, and the National Natural Science Foundation of China under Grant Nos. 12105184, 11975265, 12175273, and the Comprehensive Research Facility for Fusion Technology Program of China under Contract No. 2018-000052-73-01001228, and the Foundation of Institute of Plasma Physics, Chinese Academy of Sciences under Grant No. Y35ETY130E.

참고문헌

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