Active real-time control of Alfvén eigenmodes by neutral beam and electron cyclotron heating in the DIII-D tokamak
作者: Wenhui HuK.E.J. OlofssonA.S. WelanderW.W. HeidbrinkM.A. Van ZeelandM.E. AustinC.S. CollinsD.A. HumphreysE. KolemenJiangang LiBingjia XiaoDIII-D Team
作者单位: 1Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People’s Republic of China
2University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
3General Atomics, PO Box 85608, San Diego, CA 92186-5608, United States of America
4Department of Physics and Astronomy, University of California, Irvine, CA 92697, United States of America
5University of Texas-Austin, Austin, TX 78712, United States of America
6Princeton University, Princeton, NJ 08544, United States of America
刊名: Nuclear Fusion, 2018, Vol.58 (12)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aaddaf
原始语种摘要: A real-time Alfvén eigenmode (AE) controller is designed and implemented for the first time in DIII-D. The experimental test consists of two parts: (i) open-loop and feedback control using neutral beam power as an actuator and (ii) open-loop control using electron cyclotron heating (ECH) as an actuator. Part (i) demonstrates the feasibility of varying neutral beam power injected into plasma to control overall AE amplitude as well as the successful application of real-time electron cyclotron emission (ECE) as the process controller’s AE amplitude sensor. The temporal evolution of AE amplitude at a specific radial location has also been controlled by selecting a subset of the radial ECE array. Part (ii) finds a complicated dependence of AE evolution on ECH power and more dedicated...
全文获取路径: IOP 

  • control 控制
  • neutral 中性的
  • cyclotron 回旋加速器
  • electron 电子
  • actuator 传动机构
  • successful 成功的
  • heating 加热
  • tokamak 托卡马克
  • process 过程
  • system