Plasma shape control on the National Spherical Torus Experiment (NSTX) using real-time equilibrium reconstruction

被引:62
作者
Gates, DA
Ferron, JR
Bell, M
Gibney, T
Johnson, R
Marsala, RJ
Mastrovito, D
Menard, JE
Mueller, D
Penaflor, B
Sabbagh, SA
Stevenson, T
机构
[1] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA
[2] Gen Atom Co, San Diego, CA 92186 USA
[3] Columbia Univ, New York, NY 10027 USA
关键词
D O I
10.1088/0029-5515/46/1/002
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
Plasma shape control using real-time equilibrium reconstruction has been implemented on the National Spherical Torus Experiment (NSTX). The rtEFIT code originally developed for use on DM-D was adapted for use on NSTX The real-time equilibria provide calculations of the flux at points on the plasma boundary, which are used as input to a shape control algorithm known as isoflux control. The flux at the desired boundary location is compared with a reference flux value, and this flux error is used as the basic feedback quantity for the poloidal field coils on NSTX. The hardware that comprises the control system is described, as well as the software infrastructure. Examples of precise boundary control are also presented.
引用
收藏
页码:17 / 23
页数:7
相关论文
共 11 条
[1]   Real time equilibrium reconstruction for tokamak discharge control [J].
Ferron, JR ;
Walker, ML ;
Lag, LL ;
St John, HE ;
Humphreys, DA ;
Leuer, JA .
NUCLEAR FUSION, 1998, 38 (07) :1055-1066
[2]   Vessel eddy current measurement for the National Spherical Torus Experiment [J].
Gates, DA ;
Menard, JE ;
Marsala, RJ .
REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (12) :5090-5093
[3]  
GATES DA, 2006, IN PRESS FUSION ENG
[4]  
GRAD H, 1958, P 2 UN INT C TECHN F, P19
[5]  
HOFFMAN F, 1990, NUCL FUSION, V30, P2013
[6]   SERVO-CONTROL OF PLASMA POSITION IN CLEO-TOKAMAK [J].
HUGILL, J ;
GIBSON, A .
NUCLEAR FUSION, 1974, 14 (05) :611-619
[7]   SEPARATION OF BETA-BARP AND LI IN TOKAMAKS OF NON-CIRCULAR CROSS-SECTION [J].
LAO, LL ;
STJOHN, H ;
STAMBAUGH, RD ;
PFEIFFER, W .
NUCLEAR FUSION, 1985, 25 (10) :1421-1436
[8]   Real-time control software on NSTX [J].
Mastrovito, D ;
Ferron, J ;
Gates, D ;
Gibney, T ;
Johnson, R .
FUSION ENGINEERING AND DESIGN, 2004, 71 (1-4) :65-69
[9]   Current status of DIII-D real-time digital plasma control [J].
Penaflor, BG ;
Piglowski, DA ;
Ferron, JR ;
Walker, ML .
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2000, 47 (02) :201-204
[10]   Equilibrium properties of spherical torus plasmas in NSTX [J].
Sabbagh, SA ;
Kaye, SM ;
Menard, J ;
Paoletti, F ;
Bell, M ;
Bell, RE ;
Bialek, JM ;
Bitter, M ;
Fredrickson, ED ;
Gates, DA ;
Glasser, AH ;
Kugel, H ;
Lao, LL ;
LeBlanc, BP ;
Maingi, R ;
Maqueda, RJ ;
Mazzucato, E ;
Mueller, D ;
Ono, M ;
Paul, SF ;
Peng, M ;
Skinner, CH ;
Stutman, D ;
Wurden, GA ;
Zhu, W .
NUCLEAR FUSION, 2001, 41 (11) :1601-1611