Model predictive control of resistive wall mode for ITER

被引：2
作者：
Gerksic, Samo [1 ]
Pregelj, Bostjan [1 ]
Ariola, Marco [2 ]
机构：
[1] Jozef Stefan Inst, Jamova 39, SI-1000 Ljubljana, Slovenia
[2] Univ Napoli Parthenope, Consorzio CREATE, Naples, Italy
来源：
FUSION ENGINEERING AND DESIGN | 2020年 / 160卷
关键词：
Predictive control; Plasma magnetic control; Quadratic programming; Fast gradient method; FEEDBACK-CONTROL; STABILIZATION; DESIGN; OPTIMIZATION; COILS;
D O I：
10.1016/j.fusengdes.2020.111877
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：
Active feedback stabilization of the dominant resistive wall mode (RWM) for an ITER H-mode scenario at high plasma pressure using infinite-horizon model predictive control (MPC) is presented. The MPC approach is closely-related to linear-quadratic-Gaussian (LQG) control, improving the performance in the vicinity of constraints. The control-oriented model for MPC is obtained with model reduction from a high-dimensional model produced by CarMa code. Due to the limited time for on-line optimization, a suitable MPC formulation considering only input (coil voltage) constraints is chosen, and the primal fast gradient method is used for solving the associated quadratic programming problem. The performance is evaluated in simulation in comparison to LQG control. Sensitivity to noise, robustness to changes of unstable RWM dynamics, and size of the domain of attraction of the initial conditions of the unstable modes are examined.
引用
收藏
页数：17
相关论文
共 77 条
  • [1] Coupling between a 3-D integral eddy current formulation and a linearized MHD model for the analysis of resistive wall modes
    Albanese, R.
    Liu, Y. Q.
    Portone, A.
    Rubinacci, G.
    Villone, F.
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 2008, 44 (06) : 1654 - 1657
  • [2] Optimization of currents in ITER correction coils
    Amoskov V.M.
    Belyakov V.A.
    Gribov Y.A.
    Lamzin E.A.
    Maximenkova N.A.
    Sytchevsky S.E.
    [J]. Physics of Particles and Nuclei Letters, 2015, 12 (3) : 375 - 379
  • [3] Anderson B. D. O, 1990, OPTIMAL CONTROL LINE
  • [4] [Anonymous], 2014, IFAC Proc.
  • [5] Control of resistive wall modes in tokamak plasmas
    Ariola, M.
    De Tommasi, G.
    Pironti, A.
    Villone, F.
    [J]. CONTROL ENGINEERING PRACTICE, 2014, 24 : 15 - 24
  • [6] Ariola M., 2016, MAGNETIC CONTROL TOK, DOI DOI 10.1007/978-3-319-29890-0_11
  • [7] Dynamics of an n=1 explosive instability and its role in high-β disruptions
    Aydemir, A. Y.
    Park, B. H.
    In, Y. K.
    [J]. NUCLEAR FUSION, 2018, 58 (01)
  • [8] Error Field Impact on Plasma Boundary in ITER Scenarios
    Barbato, L.
    Formisano, A.
    Martone, R.
    Villone, F.
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 2016, 52 (03)
  • [9] The explicit linear quadratic regulator for constrained systems
    Bemporad, A
    Morari, M
    Dua, V
    Pistikopoulos, EN
    [J]. AUTOMATICA, 2002, 38 (01) : 3 - 20
  • [10] Application of benchmarked kinetic resistive wall mode stability codes to ITER, including additional physics
    Berkery, J. W.
    Wang, Z. R.
    Sabbagh, S. A.
    Liu, Y. Q.
    Betti, R.
    Guazzotto, L.
    [J]. PHYSICS OF PLASMAS, 2017, 24 (11)
12345678