Effect of passive plates on vertical instability in the EAST tokamak

• 来源期刊: 中国物理B（英文版）
• 关键词: passive plate vertical instability rigid displacement model
• 年，卷（期）: 2012,（8）
• 页码范围: 323-329
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/21/8/085201

摘要

The effect of passive plates on vertical displacement control in the EAST tokamak is investigated by open loop experiments and numerical simulations based on a rigid displacement model.The experiments and simulations indicate that the vertical instability growth rate is reduced by a factor of about 2 in the presence of the passive plates,where the adjacent segments are not connected to each other.The simulations also show that the vertical instability growth rate is reduced by a factor of about l0 if all adjacent segments on each passive plate loop are connected to each other.The operational window is greatly enlarged with the passive plates.