Electromagnetic modeling for the active control of MHD modes in RFX

被引:19
作者
Marchiori, G [1 ]
Cavinato, M [1 ]
Masiello, A [1 ]
Paccagnella, R [1 ]
机构
[1] EURATOM, ENEA Fus, Consorzio RFX, I-35127 Padua, Italy
关键词
electromagnetic modeling; MHD modes; RFX; active control; RFP;
D O I
10.1016/S0920-3796(03)00330-2
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
The new RFX load assembly is characterized by a thin copper shell with a 50 ms time constant, for the vertical field penetration, and 192 active saddle coils all around the torus. The active control of resistive wall modes (RWM's) is considered a basic issue to extend the pulse duration to its nominal value. An open loop state space model was developed in view of the simultaneous control of different harmonic components of the magnetic field. It integrates a lumped parameter electromagnetic model of the saddle coil system and a linear model of the plasma magneto-hydrodynamic (MHD) evolution. Reduction techniques have already been tested in order to obtain a model suitable for the design of the control system of the plasma modes. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:691 / 696
页数:6
相关论文
共 14 条
[1]  
CHITARIN G, 2002, 22 S FUS TECHN HELS
[2]   Feedback stabilization of resistive shell modes in a reversed field pinch [J].
Fitzpatrick, R ;
Yu, EP .
PHYSICS OF PLASMAS, 1999, 6 (09) :3536-3547
[3]   THE PLASMA SYSTEM OF RFX [J].
GNESOTTO, F ;
SONATO, P ;
BAKER, WR ;
DORIA, A ;
ELIO, F ;
FAURI, M ;
FIORENTIN, P ;
MARCHIORI, G ;
ZOLLINO, G .
FUSION ENGINEERING AND DESIGN, 1995, 25 (04) :335-372
[4]  
KOHNKE P, 1992, ANSYS USERS MANUAL T
[5]   Feedback stabilization of nonaxisymmetric resistive wall modes in tokamaks. I. Electromagnetic model [J].
Liu, YQ ;
Bondeson, A ;
Fransson, CM ;
Lennartson, B ;
Breitholtz, C .
PHYSICS OF PLASMAS, 2000, 7 (09) :3681-3690
[6]  
Lowther D.A., 1986, COMPUTER AIDED DESIG
[7]  
NAVRATIL GA, 2000, P 18 IAEA FUS EN C E
[8]   Circuit equation formulation of resistive wall mode feedback stabilization schemes [J].
Okabayashi, M ;
Pomphrey, N ;
Hatcher, RE .
NUCLEAR FUSION, 1998, 38 (11) :1607-1627
[9]   Active feedback stabilization of the resistive wall mode on the DIII-D device [J].
Okabayashi, M ;
Bialek, J ;
Chance, MS ;
Chu, MS ;
Fredrickson, ED ;
Garofalo, AM ;
Gryaznevich, M ;
Hatcher, RE ;
Jensen, TH ;
Johnson, LC ;
La Haye, RJ ;
Lazarus, EA ;
Makowski, MA ;
Manickam, J ;
Navratil, GA ;
Scoville, JT ;
Strait, EJ ;
Turnbull, AD ;
Walker, ML .
PHYSICS OF PLASMAS, 2001, 8 (05) :2071-2082
[10]   Feedback control of resistive wall modes in reversed field pinches [J].
Paccagnella, R ;
Gregoratto, D ;
Bondeson, A .
NUCLEAR FUSION, 2002, 42 (09) :1102-1109