中国物理B ›› 2009, Vol. 18 ›› Issue (3): 1172-1176.doi: 10.1088/1674-1056/18/3/055

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Observation of poloidal current flowed to the vessel after failure of vertical position feedback control in EAST Tokamak

L. L. Lao1, 钱金平2, 万宝年2, 沈 飙2, 肖炳甲2, 李建刚2, 林士耀2, 罗正平2   

  1. (1)General Atomics, San Diego, California, USA; (2)Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
  • 收稿日期:2008-03-26 修回日期:2008-07-10 出版日期:2009-03-20 发布日期:2009-03-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10725523) and the Ministry of Science and Technology of China (Grant No 2007DFA11290).

Observation of poloidal current flowed to the vessel after failure of vertical position feedback control in EAST Tokamak

Qian Jin-Ping(钱金平)a†), Wan Bao-Nian(万宝年)a), Shen Biao(沈飙)a), L. L. Laob), Xiao Bing-Jia(肖炳甲)a), Li Jian-Gang(李建刚)a), Lin Shi-Yao(林士耀)a), and Luo Zheng-Ping(罗正平)a)   

  1. a Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China; b General Atomics, San Diego, California, USA
  • Received:2008-03-26 Revised:2008-07-10 Online:2009-03-20 Published:2009-03-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10725523) and the Ministry of Science and Technology of China (Grant No 2007DFA11290).

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摘要： Plasmas with vertically elongated cross-sections tend to be unstable to an axis-symmetric instability. This paper studies the magnetohydrodynamic equilibria in elongated plasmas after failure of vertical feedback control by using magnetic data for EAST device. Vertical forces on the vessel due to the induced polodial and toroidal currents are evaluated. The maximum force of the Fzpol in vertical displacement events for EAST designed parameters is given.

关键词: equilibrium reconstruction, vertical stability, scrape-off layer

Abstract: Plasmas with vertically elongated cross-sections tend to be unstable to an axis-symmetric instability. This paper studies the magnetohydrodynamic equilibria in elongated plasmas after failure of vertical feedback control by using magnetic data for EAST device. Vertical forces on the vessel due to the induced polodial and toroidal currents are evaluated. The maximum force of the Fzpol in vertical displacement events for EAST designed parameters is given.

Key words: equilibrium reconstruction, vertical stability, scrape-off layer

中图分类号:  (Tokamaks, spherical tokamaks)

  • 52.55.Fa
52.35.Py (Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.)) 28.52.Av (Theory, design, and computerized simulation) 52.40.Hf (Plasma-material interactions; boundary layer effects) 52.30.Cv (Magnetohydrodynamics (including electron magnetohydrodynamics))