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

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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).

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Received Date: October 12, 2017

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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

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References

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Design of the poloidal field system for KTX