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Liu LN, Wang L, Yuan S, Mao YZ, Saito K, Zhang XJ, Qin CM, Liang QC, Long XY, Zhao YP, Cheng Y, Zhang W, Yang H, Zhu GH, Zhang K, Ping LL, Ai L, Guo YY, Wang GX, Zheng WM, Gao X, Lin XD, Wu MQ. Impedance matching system using triple liquid stub tuners for high-power ion cyclotron resonance heating in EAST tokamak. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:043506. [PMID: 35489959 DOI: 10.1063/5.0076421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Ion cyclotron resonance heating (ICRH), one of the main auxiliary methods, for high-power and long-pulse plasma heating had been developed in Experimental Advanced Superconducting Tokamak (EAST). An impedance matching system, one important part of ICRH, had been developed for high-power injection and transmitter protection by reducing the reflected power from the antenna. The input impedance in the outlet of the stub tuner can be measured by voltage-current probes installed on the coaxial transmission line between the antenna and triple liquid stub tuners, and the optimum liquid levels in the stub tuners can be calculated based on the input impedance. The calculation and adjustment process of the optimum liquid levels are described comprehensively in this article. Finally, impedance matching had been achieved between two shots during EAST experiments. In the near future, a real-time impedance matching system will be developed to prevent large variations of the ICRH antenna impedance and achieve steady-state and long-pulse operation with the ICRH system.
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Affiliation(s)
- L N Liu
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - L Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - S Yuan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y Z Mao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - K Saito
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - X J Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - C M Qin
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Q C Liang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - X Y Long
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y P Zhao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y Cheng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - W Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - H Yang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - G H Zhu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - K Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - L L Ping
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - L Ai
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y Y Guo
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - G X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - W M Zheng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - X Gao
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - X D Lin
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - M Q Wu
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
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Tan Q, Gong X, Huang Q, Zhong Y, Yang T. Theoretical Study of the Impedance Matching of the Ferrite Tuner System for ICRF Heating. FUSION SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1080/15361055.2021.1936846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Qingyi Tan
- University of South China, Hengyang, Hunan 421001, China
| | - Xueyu Gong
- University of South China, Hengyang, Hunan 421001, China
| | - Qianhong Huang
- University of South China, Hengyang, Hunan 421001, China
| | - Yijun Zhong
- University of South China, Hengyang, Hunan 421001, China
| | - Tao Yang
- University of South China, Hengyang, Hunan 421001, China
- Radiotherapy Center, Huangshi Central Hospital, Hubei, Huangshi 435000, China
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Chen G, Zhao Y, Mao Y, Yuan S, Zheng G, Zheng F, He Z, Yu S. Design and Test of the Fast Ferrite Tuner for ICRF Heating in EAST. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst61-301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Gen Chen
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Yanping Zhao
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Yuzhou Mao
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Shuai Yuan
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Gaowei Zheng
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Fen Zheng
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Zhongxin He
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Shenglin Yu
- Nanjing University of Information Science and Technology, Nanjing 210044, China
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Chen G, Zhao Y, Mao Y, Shuai Y, Zhang X, Qing C. High-Power Fast-Response Ferrite Tuner for ICRF Impedance Matching in EAST. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst15-228] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Gen Chen
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Yanping Zhao
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Yuzhou Mao
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Yuan Shuai
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Xinjun Zhang
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
| | - Chengming Qing
- Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, China
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