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Stabilization of Resistive Wall Modes in ITER by Active Feedback and Toroidal Rotation

Yueqiang Liu (Institutionen för elektromagnetik, Elektromagnetiska beräkningar) ; Anders Bondeson (Institutionen för elektromagnetik, Elektromagnetiska beräkningar) ; Y. Gribov ; A. Polevoi
Nuclear Fusion (ISSN 0029-5515 ). Vol. 44 (2004), p. 232.
[Artikel, refereegranskad vetenskaplig]

Two approaches are examined for stabilization of the resistive wall mode (RWM) of toroidal mode number n = 1 in an advanced ITER scenario. Active feedback control, with the present coil design and poloidal sensors placed just inside the inner wall, can be very efficient in stabilizing the RWM. Within the voltage limit of the present design for the feedback coils and conservative constraints on performance, the plasma pressure can be increased up to at least 70% between the no-wall and ideal-wall beta limits. Stabilization of the RWM by toroidal plasma rotation depends on the rotation profile as well as on the model for ion Landau damping. Feedback control of rotating plasmas for the advanced scenario is considered. The effect of the blanket is also studied using a simplified model.

Nyckelord: Resistive Wall Mode, Rotation, Feedback Stabilization, ITER

Denna post skapades 2006-09-25. Senast ändrad 2013-07-03.
CPL Pubid: 2484


Institutioner (Chalmers)

Institutionen för elektromagnetik, Elektromagnetiska beräkningar (1900-2004)



Chalmers infrastruktur