The anode power supply for the ECRH system on the J-TEXT tokamak

Donghui XIA (夏冬辉); Fangtai CUI (崔芳泰); Changhai LIU (刘昌海); Zhenxiong YU (余振雄); Yikun JIN (金易坤); Zhijiang WANG (王之江); J-TEXT team

doi:10.1088/2058-6272/aa936d

Plasma Science and Technology > 2018 > 20(1): 14018-014018. > DOI: 10.1088/2058-6272/aa936d

Donghui XIA (夏冬辉), Fangtai CUI (崔芳泰), Changhai LIU (刘昌海), Zhenxiong YU (余振雄), Yikun JIN (金易坤), Zhijiang WANG (王之江), J-TEXT team. The anode power supply for the ECRH system on the J-TEXT tokamak[J]. Plasma Science and Technology, 2018, 20(1): 14018-014018. DOI: 10.1088/2058-6272/aa936d

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The anode power supply for the ECRH system on the J-TEXT tokamak

¹ State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
² Zibo Power Supply Company, State Grid Shandong Electric Power Company, Zibo 255000, People’s Republic of China

Funds: This work is supported by the International Thermonuclear Experimental Reactor Special Fund of China (Grant Nos. 2013GB106001 and 2013GB106003).

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Abstract

Abstract

The electron cyclotron resonance heating (ECRH) system with a 60 GHz/200 kW/0.5 s gyrotron donated by the Culham Science Center is being developed on the J-TEXT tokamak for plasma heating, current drive and MHD studies. Simultaneously, an anode power supply (APS) has been rebuilt and tested for the output power control of the gyrotron, of which the input voltage is derived from an 80 kV negative cathode power supply. The control strategy by controlling the grid voltage of the tetrode TH5186 is applied to obtain an accurate anode climbing voltage, of which the output voltage can be obtained from 0–30 kV with respect to the cathode power supply. The characteristics of the APS, including control, protection, modulation, and output waveform, were tested with a 100 kV/60 A negative cathode power supply, a dummy load and the ECRH control system. The results indicate that the APS can meet the requirements of the ECRH system on J-TEXT.
- J-TEXT,
- ECRH,
- APS,
- Fiber isolation

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[1]	Zeyu HAO (郝泽宇), JianSONG(宋健), YueHUA(滑跃), Gailing ZHANG (张改玲), Xiaodong BAI (白晓东), Chunsheng REN (任春生). Frequency dependence of plasma characteristics at different pressures in cylindrical inductively coupled plasma source[J]. Plasma Science and Technology, 2019, 21(7): 75401-075401. DOI: 10.1088/2058-6272/ab1035
[2]	Chundong HU (胡纯栋), Yahong XIE (谢亚红), Yongjian XU (许永建), Caichao JIANG (蒋才超), Jianglong WEI (韦江龙), Yuming GU (顾玉明), Qinglong CUI (崔庆龙), Lizhen LIANG (梁立振), Shiyong CHEN (陈世勇), Yuanlai XIE (谢远来). Achievement of 1000 s plasma generation of RF source for neutral beam injector[J]. Plasma Science and Technology, 2019, 21(2): 22001-022001. DOI: 10.1088/2058-6272/aaf1e0
[3]	Xianhai PANG (庞先海), Ting WANG (王婷), Shixin XIU (修士新), Junfei YANG (杨俊飞), Hao JING (景皓). Investigation of cathode spot characteristics in vacuum under transverse magnetic field (TMF) contacts[J]. Plasma Science and Technology, 2018, 20(8): 85502-085502. DOI: 10.1088/2058-6272/aab782
[4]	Chenfan YU (余晨帆), Xin ZHOU (周鑫), Dianzheng WANG (王殿政), Neuyen VAN LINH, Wei LIU (刘伟). Study on the RF inductively coupled plasma spheroidization of refractory W and W-Ta alloy powders[J]. Plasma Science and Technology, 2018, 20(1): 14019-014019. DOI: 10.1088/2058-6272/aa8e94
[5]	Vadym PRYSIAZHNYI, Pavel SLAVICEK, Eliska MIKMEKOVA, Milos KLIMA. Influence of Chemical Precleaning on the Plasma Treatment Efficiency of Aluminum by RF Plasma Pencil[J]. Plasma Science and Technology, 2016, 18(4): 430-437. DOI: 10.1088/1009-0630/18/4/17
[6]	LIU Zhiwei (刘智惟), BAO Weimin (包为民), LI Xiaoping (李小平), LIU Donglin (刘东林), ZHOU Hui (周辉). Influence of Plasma Pressure Fluctuation on RF Wave Propagation[J]. Plasma Science and Technology, 2016, 18(2): 131-137. DOI: 10.1088/1009-0630/18/2/06
[7]	CHEN Jiale (陈佳乐), GAO Zhe (高喆). Tokamak Plasma Flows Induced by Local RF Forces[J]. Plasma Science and Technology, 2015, 17(10): 809-816. DOI: 10.1088/1009-0630/17/10/01
[8]	A. A. AZOOZ, M. A. AHMAD. The Effect of the Earthed Electrode Size on the Ignition Voltage of Low-Pressure RF Capacitive Discharge in Argon[J]. Plasma Science and Technology, 2013, 15(9): 881-884. DOI: 10.1088/1009-0630/15/9/09
[9]	K. HANADA, H. ZUSHI, H. IDEI, K. NAKAMURA, M. ISHIGURO, S. TASHIMA, E. I. KALINNIKOVA, M. SAKAMOTO, M. HASEGAWA, A. FUJISAWA, A. HIGASHIJIMA, S. KAWASAKI, H. NAKASHIMA, H. LIU, O. MITARAI, T. MAEKAWA. Non-inductive start up of QUEST plasma by RF power[J]. Plasma Science and Technology, 2011, 13(3): 307-311.
[10]	N. U. REHMAN, F. U. KHAN, S. NASEER, G. MURTAZA, S. S. HUSSAIN, I. AHMAD, M. ZAKAULLAH. Trace-Rare-Gas Optical Emission Spectroscopy of Nitrogen Plasma Generated at a Frequency of 13.56 MHz[J]. Plasma Science and Technology, 2011, 13(2): 208-212.