Integrated real-time control of MHD instabilities using multi-beam ECRH/ECCD systems on TCV

被引：59

作者：

Felici, F. ^{[1
]}

Goodman, T. P. ^{[1
]}

Sauter, O. ^{[1
]}

Canal, G. ^{[1
]}

Coda, S. ^{[1
]}

Duval, B. P. ^{[1
]}

Rossel, J. X. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Ctr Rech Phys Plasmas, Assoc EURATOM Suisse, CH-1015 Lausanne, Switzerland

来源：

NUCLEAR FUSION | 2012年 / 52卷 / 07期

基金：

瑞士国家科学基金会;

关键词：

CYCLOTRON CURRENT DRIVE; NEOCLASSICAL TEARING MODES; H-MODE; DIII-D; SAWTOOTH PERIOD; TOKAMAK; STABILIZATION; DISCHARGES; BETA; PLASMAS;

D O I：

10.1088/0029-5515/52/7/074001

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Simultaneous real-time control of multiple MHD instabilities is experimentally demonstrated in the TCV tokamak. Multiple sources of EC heating and current drive, injected through real-time controlled launchers, are used to stabilize 3/2 and 2/1 neoclassical tearing modes (NTMs) rapidly after their appearance. Control of the sawtooth instability using a new sawtooth-pacing technique is demonstrated, providing precise control of the time of appearance of the sawtooth crash. Efficient NTM preemption can then be performed by applying pulsed power on the mode rational surface at the time of the seed-island generating sawtooth crash. These three elements are combined into one integrated control system which can simultaneously control the sawtooth period, preempt the formation of NTMs and suppress these if they appear.

引用

页数：10

共 51 条

[1] Effects of localized electron heating and current drive on the sawtooth period [J].

Angioni, C ;

Goodman, TP ;

Henderson, MA ;

Sauter, O .

NUCLEAR FUSION, 2003, 43 (06) :455-468

[2]

Canal G., 2011, 38 EPS C PLASM PHYS

[3] Magnetic Reconnection Triggering Magnetohydrodynamic Instabilities during a Sawtooth Crash in a Tokamak Plasma [J].

Chapman, I. T. ;

Scannell, R. ;

Cooper, W. A. ;

Graves, J. P. ;

Hastie, R. J. ;

Naylor, G. ;

Zocco, A. .

PHYSICAL REVIEW LETTERS, 2010, 105 (25)

[4] Progress and scientific results in the TCV tokamak [J].

Coda, S. .

NUCLEAR FUSION, 2011, 51 (09)

[5] Progress on the ITER H&CD EC Upper Launcher Steering-Mirror Control System [J].

Collazos, Andres ;

Bertizzolo, Robert ;

Chavan, Rene ;

Dolizy, Frederic ;

Felici, Federico ;

Goodman, Timothy P. ;

Henderson, Mark A. ;

Landis, Jean-Daniel ;

Sanchez, Francisco .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 2010, 38 (03) :441-447

[6] On the merits of heating and current drive for tearing mode stabilization [J].

De Lazzari, D. ;

Westerhof, E. .

NUCLEAR FUSION, 2009, 49 (07)

[7]

De Lazzari D., 2010, Nucl. Fusion, V50, P079801, DOI [10.1088/0029-5515/50/7/079801, DOI 10.1088/0029-5515/50/7/079801]

[8] Avoidance of disruptions at high βN in ASDEX Upgrade with off-axis ECRH [J].

Esposito, B. ;

Granucci, G. ;

Maraschek, M. ;

Nowak, S. ;

Gude, A. ;

Igochine, V. ;

Lazzaro, E. ;

McDermott, R. ;

Poli, E. ;

Stober, J. ;

Suttrop, W. ;

Treutterer, W. ;

Zohm, H. ;

Brunetti, D. .

NUCLEAR FUSION, 2011, 51 (08)

[9] Real-time physics-model-based simulation of the current density profile in tokamak plasmas [J].

Felici, F. ;

Sauter, O. ;

Coda, S. ;

Duval, B. P. ;

Goodman, T. P. ;

Moret, J-M. ;

Paley, J. I. .

NUCLEAR FUSION, 2011, 51 (08)

[10]

Goodman T., 2000, P 18 INT C SORR IT 2

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