TSC simulation of vertical position control by the Bang-bang method on EAST
TSC simulation of vertical position control by the Bang-bang method on EAST
复制标题
EAST 上 Bang-bang 方法垂直位置控制的 TSC 仿真
DOI：
10.1088/1741-4326/ab8775
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发表时间：
2020-04
期刊：
影响因子：
3.3
通讯作者：
Yang F.
中科院分区：
文献类型：
--
作者：
Guo Y.;Wang Y. H.;Xiao B. J.;Liu L.;Qiu Q. L.;Yang F.
垂直不稳定性是细长等离子体的潜在严重危害。人们提出了许多控制等离子体垂直位置的方法。基于最优控制理论和RZIp刚性等离子体响应模型为内线圈（IC）电压模式设计的Bang-bang方法已成功用于EAST 2014实验活动中的等离子体垂直位置控制（Wang et al . 2016 Fusion Eng）。得112 692-8)。托卡马克模拟代码（TSC）是托卡马克等离子体及其相关控制系统的数值模型。利用等离子体麦克斯韦磁流体动力学方程和极向场线圈电路方程的边界条件，研究了矩形计算域中磁场的演化。本文在TSC代码中实现了Bang-bang法的数值模型，并对52444弹丸进行了数值模拟。模拟的垂直位置、集成电路电压和电流轨迹与实验数据吻合良好。在基准计算的基础上，利用TSC对Bang-bang控制器进行了数值研究。该控制器能够在8 mm随机噪声和dz = 41.8 mm位移下工作。作为预测工具，利用TSC程序研究了不同最大电流下的最大可控制竖向位移值，并采用Bang-bang法评价了竖向位置的控制能力。
Vertical instability is a potentially serious hazard for elongated plasma. Many methods have been proposed to control the plasma vertical position. The Bang-bang method, which is designed for the inside coil (IC) voltage mode based on optimal control theory and the RZIp rigid plasma response model, has been successfully used for plasma vertical position control in the EAST 2014 experimental campaign (Wang et al 2016 Fusion Eng. Des. 112 692–8). The Tokamak Simulation Code (TSC) is a numerical model of tokamak plasma and the associated control systems. It studies the evolution of the magnetic field in a rectangular computational domain using the Maxwell magnetohydrodynamic equations for plasma coupled with the boundary conditions to the circuit equations for the poloidal field coils. In this paper, the numerical model of the Bang-bang method has been implemented in the TSC code, which is used to simulate shot 52444. Simulated trajectories of the vertical position, IC voltage, and current fit the experimental data well. On the basis of benchmarked calculation, a numerical investigation of the Bang-bang controller has been performed using the TSC. This controller was able to work with 8 mm random noise and dz = 41.8 mm displacement. As a predictive tool, the TSC code is used to investigate the the maximum controllable vertical displacement value for different maximum current, and evaluate the ability to control the vertical position by the Bang-bang method.
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影响因子：
8.6
作者：
R. Miller;R. W. Moore
通讯作者：
R. Miller;R. W. Moore
DOI：
10.1109/plasma.1990.110570
发表时间：
1990-05
期刊：
1990 Plasma Science IEEE Conference Record - Abstracts
影响因子：
--
作者：
D. Post
通讯作者：
D. Post
DOI：
10.1109/87.896756
发表时间：
2001
期刊：
IEEE Trans. Control. Syst. Technol.
影响因子：
--
作者：
L. Scibile;B. Kouvaritakis
通讯作者：
L. Scibile;B. Kouvaritakis
DOI：
10.1016/s0005-1098(99)00097-7
发表时间：
2000
期刊：
Autom.
影响因子：
--
作者：
L. Scibile;B. Kouvaritakis
通讯作者：
L. Scibile;B. Kouvaritakis
影响因子：
3.3
作者：
Martin Greenwald;J. L. Terry;S. M. Wolfe;S. Ejima;M. Bell;S. Kaye;G. H. Neilson
通讯作者：
Martin Greenwald;J. L. Terry;S. M. Wolfe;S. Ejima;M. Bell;S. Kaye;G. H. Neilson