Design of real-time feedback control of vertical growth rate on EAST

Na-Na Bao; Yao Huang; Bing-Jia Xiao; Qi-Ping Yuan; Zheng-Ping Luo; Yue-Hang Wang; Shu-Liang Chen

doi:10.1007/s41365-021-00907-w

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Design of real-time feedback control of vertical growth rate on EAST

NUCLEAR ELECTRONICS AND INSTRUMENTATION | Updated：2021-08-05

- Design of real-time feedback control of vertical growth rate on EAST
- Design of real-time feedback control of vertical growth rate on EAST
- Nuclear Science and Techniques 2021年32卷第7期文章编号：76
- Affiliations：
  
  1.School of Internet, Anhui University, Hefei 230039, China
  2.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
  3.National Engineering Research Center for Agro-Ecological Big Data Analysis & Application, Anhui University, Hefei 230039, China
- Author bio：
  
  Corresponding author, yaohuang@ipp.ac.cn
- Funds：
- DOI：10.1007/s41365-021-00907-w
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Na-Na Bao, Yao Huang, Bing-Jia Xiao, 等. Design of real-time feedback control of vertical growth rate on EAST[J]. Nuclear Science and Techniques, 2021,32(7):76

Na-Na Bao, Yao Huang, Bing-Jia Xiao, et al. Design of real-time feedback control of vertical growth rate on EAST[J]. Nuclear Science and Techniques, 2021,32(7):76
Na-Na Bao, Yao Huang, Bing-Jia Xiao, 等. Design of real-time feedback control of vertical growth rate on EAST[J]. Nuclear Science and Techniques, 2021,32(7):76 DOI： 10.1007/s41365-021-00907-w.

Na-Na Bao, Yao Huang, Bing-Jia Xiao, et al. Design of real-time feedback control of vertical growth rate on EAST[J]. Nuclear Science and Techniques, 2021,32(7):76 DOI： 10.1007/s41365-021-00907-w.

摘要

Abstract

Real-time feedback control of vertical growth rate, called gamma control, has been successfully applied to experimental advanced superconducting tokamak (EAST). In this paper, a new gamma control method is proposed to regulate the vertical growth rate, which is an estimator of plasma vertical instability. Thus, the gamma controller can be utilized to keep the tokamak plasma away from its unstable boundary. In this work, the main development process includes three steps: 1) real-time implementation of model-based vertical growth rate calculation, taking advantage of GPU parallel computing capability, 2) design of plasma shape response for dynamic shape control using a slight modification to the plasma boundary; and 3) development of a gamma control algorithm integrated into an EAST plasma control system (PCS). The gamma control was experimentally verified in the EAST 2019 experiment campaign. It is shown that the time evolution of the real-time vertical growth rate agrees with the target value, indicating that the real-time vertical growth rate can be regulated by gamma control.

关键词

Keywords

Experimental advanced superconducting tokamak (EAST)Dynamic shape responseGamma controlVertical growth rate

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