Implementation of advanced feedback control algorithms for controlled resonant magnetic perturbation physics studies on EXTRAP T2R

被引：15

作者：

Frassinetti, L. ^{[1
]}

Olofsson, K. E. J. ^{[1
]}

Brunsell, P. R. ^{[1
]}

Drake, J. R. ^{[1
]}

机构：

[1] Royal Inst Technol KTH, Assoc EURATOM VR, Alfven Lab, Div Fus Plasma Phys,Sch Elect Engn, SE-10044 Stockholm, Sweden

来源：

NUCLEAR FUSION | 2011年 / 51卷 / 06期

关键词：

REVERSED-FIELD PINCH; EDGE LOCALIZED MODES; INTELLIGENT SHELL; STABILIZATION;

D O I：

10.1088/0029-5515/51/6/063018

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：

The EXTRAP T2R feedback system (active coils, sensor coils and controller) is used to study and develop new tools for advanced control of the MHD instabilities in fusion plasmas. New feedback algorithms developed in EXTRAP T2R reversed-field pinch allow flexible and independent control of each magnetic harmonic. Methods developed in control theory and applied to EXTRAP T2R allow a closed-loop identification of the machine plant and of the resistive wall modes growth rates. The plant identification is the starting point for the development of output-tracking algorithms which enable the generation of external magnetic perturbations. These algorithms will then be used to study the effect of a resonant magnetic perturbation (RMP) on the tearing mode (TM) dynamics. It will be shown that the stationary RMP can induce oscillations in the amplitude and jumps in the phase of the rotating TM. It will be shown that the RMP strongly affects the magnetic island position.

引用

页数：13

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