Design of the poloidal field system for KTX

Wei YOU (尤玮); Hong LI (李弘); Wenzhe MAO (毛文哲); Wei BAI (白伟); Cui TU (涂翠); Bing LUO (罗兵); Zichao LI (李子超); Yolbarsop ADIL (阿迪里江); Jintong HU (胡金童); Bingjia XIAO (肖炳甲); Qingxi YANG (杨庆喜); Jinlin XIE (谢锦林); Tao LAN (兰涛); Adi LIU (刘阿娣); Weixing DING (丁卫星); Chijin XIAO (肖持进); Wandong LIU (刘万东)

doi:10.1088/2058-6272/aac8d5

Plasma Science and Technology > 2018 > 20(11): 115601. > DOI: 10.1088/2058-6272/aac8d5

Wei YOU (尤玮), Hong LI (李弘), Wenzhe MAO (毛文哲), Wei BAI (白伟), Cui TU (涂翠), Bing LUO (罗兵), Zichao LI (李子超), Yolbarsop ADIL (阿迪里江), Jintong HU (胡金童), Bingjia XIAO (肖炳甲), Qingxi YANG (杨庆喜), Jinlin XIE (谢锦林), Tao LAN (兰涛), Adi LIU (刘阿娣), Weixing DING (丁卫星), Chijin XIAO (肖持进), Wandong LIU (刘万东). Design of the poloidal field system for KTX[J]. Plasma Science and Technology, 2018, 20(11): 115601. DOI: 10.1088/2058-6272/aac8d5

Citation:

PDF (1435 KB)

Design of the poloidal field system for KTX

¹ KTX Laboratory and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, People’s Republic of China
² Institute of Plasma Physics Chinese Academy of Sciences, Hefei 230026, People’s Republic of China
³ Department of Physics and Astronomy, University of California at Los Angeles, Los Angeles, CA 90095, United States of America
⁴ Department of Physics and Engineering Physics, University of Saskatchewan, SK S7N 5N2, Canada

Funds: The authors would like to express their thanks to all members of the KTX team. This research was supported by the National Magnetic Confinement Fusion Research Program of China (2011GB106000).

More Information

Received Date: October 12, 2017

Graphical Abstract

Abstract

Abstract

The design of the poloidal field (PF) system includes the ohmic heating field system and the equilibrium (EQ) field system, and is the basis for the design of a magnetic confinement fusion device. A coupling between the poloidal and plasma currents, especially the eddy current in the stabilizing shell, yields design difficulties. The effects of the eddy current in the stabilizing shell on the poloidal magnetic field also cannot be ignored. A new PF system design is thus proposed. By using a low-μ material (μ=0.001, ε=1) instead of a conductive shell, an electromagnetic model is established that can provide a continuous eddy current distribution on the conductive shell. In this model, a 3D time-domain problem with shells translates into a 2D magnetostatic problem, and the accuracy of the calculation is improved. Based on these current distributions, we design the PF system and analyze how the EQ coils and conductive shell affect the plasma EQ when the plasma ramps up. To meet the mainframe design requirements and achieve an efficient power-supply design, the position and connection of the poloidal coils are optimized further.
- RFP,
- KTX,
- poloidal field system,
- electromagnetic design

FullText(HTML)

References (15)

References

[1]	Bodin H A B 1990 Nucl. Fusion 30 1717
[2]	Bonfiglio D et al 2015 Plasma Phys. Controlled Fusion 57 44001
[3]	Ji H et al 1994 Phys. Rev. Lett. 73 668
[4]	Bolzonella T et al 2008 Phys. Rev. Lett. 101 165003
[5]	Escande D F et al 2000 Phys. Rev. Lett. 85 1662
[6]	Sonato P et al 2003 Fusion Eng. Des. 66–68 161
[7]	Stella A et al 1995 Fusion Eng. Des. 25 373
[8]	Dexter R N et al 1991 Fusion Technol. 19 131
[9]	Brunsell P R et al 2001 Plasma Phys. Controlled Fusion 43 1457
[10]	Yagi Y et al 1999 Fusion Eng. Des. 45 409
[11]	Liu W D et al 2014 Plasma Phys. Controlled Fusion 56 094009
[12]	Guarnieri M et al 1985 Fusion Technol. 8 856
[13]	Gnesotto F et al 1983 Dynamic control of the equilibrium field configuration in RFX Proc. of the 10th Symp. on Fusion Engineering pp 316–20
[14]	You W et al 2016 Fusion Eng. Des. 108 28
[15]	Bai W et al 2015 Fusion Eng. Des. 100 495

[1]	Bing QI (齐冰), Chunxu QIN (秦春旭), Haikun SHANG (尚海昆), Li XIONG (熊莉). Measurement of He₂* density with an auxiliary measuring electrode in atmospheric pressure plasma jet[J]. Plasma Science and Technology, 2019, 21(8): 85402-085402. DOI: 10.1088/2058-6272/ab15a1
[2]	Muhammad Ajmal KHAN, Jing LI (李静), Heping LI (李和平), Hafiz Imran Ahmad QAZI. Characteristics of a radio-frequency cold atmospheric plasma jet produced with a hybrid cross-linear-field electrode configuration[J]. Plasma Science and Technology, 2019, 21(5): 55401-055401. DOI: 10.1088/2058-6272/ab004b
[3]	Wenjia WANG (王文家), Deng ZHOU (周登), Yue MING (明玥). The residual zonal flow in tokamak plasmas with a poloidal electric field[J]. Plasma Science and Technology, 2019, 21(1): 15101-015101. DOI: 10.1088/2058-6272/aadd8e
[4]	Jia TIAN (田甲), Wenzheng LIU (刘文正), Weisheng CUI (崔伟胜), Yongjie GAO (高永杰). Generation characteristics of a metal ion plasma jet in vacuum discharge[J]. Plasma Science and Technology, 2018, 20(8): 85403-085403. DOI: 10.1088/2058-6272/aabedf
[5]	Carlo POGGI, Théo GUILLAUME, Fabrice DOVEIL, Laurence CHÉRIGIER-KOVACIC. Estimation of the Lyman-α signal of the EFILE diagnostic under static or radiofrequency electric field in vacuum[J]. Plasma Science and Technology, 2018, 20(7): 74001-074001. DOI: 10.1088/2058-6272/aabde3
[6]	Haixin HU (胡海欣), Feng HE (何锋), Ping ZHU (朱平), Jiting OUYANG (欧阳吉庭). Numerical study of the influence of dielectric tube on propagation of atmospheric pressure plasma jet based on coplanar dielectric barrier discharge[J]. Plasma Science and Technology, 2018, 20(5): 54010-054010. DOI: 10.1088/2058-6272/aaaad9
[7]	LIU Wenzheng(刘文正), WANG Hao(王浩), DOU Zhijun(窦志军). Impact of the Insulator on the Electric Field and Generation Characteristics of Vacuum Arc Metal Plasmas[J]. Plasma Science and Technology, 2014, 16(2): 134-141. DOI: 10.1088/1009-0630/16/2/09
[8]	HONG Yi (洪义), LU Na (鲁娜), PAN Jing (潘静), LI Jie (李杰), WU Yan (吴彦). Discharge Characteristics of an Atmospheric Pressure Argon Plasma Jet Generated with Screw Ring-Ring Electrodes in Surface Dielectric Barrier Discharge[J]. Plasma Science and Technology, 2013, 15(8): 780-786. DOI: 10.1088/1009-0630/15/8/12
[9]	LV Xiaogui (吕晓桂), REN Chunsheng (任春生), MA Tengcai (马腾才), Feng Yan (冯岩), WANG Dezhen (王德真). An Atmospheric Large-Scale Cold Plasma Jet[J]. Plasma Science and Technology, 2012, 14(9): 799-801. DOI: 10.1088/1009-0630/14/9/05
[10]	FEI Xiaomeng(费小猛), Shin-ichi KURODA, Yuki KONDO, Tamio MORI, Katsuhiko HOSOI. Influence of Additive Gas on Electrical and Optical Characteristics of Non- equilibrium Atmospheric Pressure Argon Plasma Jet[J]. Plasma Science and Technology, 2011, 13(5): 575-582.