论文信息 - Development of a feedback system to control MHD instabilities in ASDEX Upgrade

Development of a feedback system to control MHD instabilities in ASDEX Upgrade

An automatic feedback control system (FCS) is presently being developed for the tokamak ASDEX Upgrade. The FCS will be used to control and/or suppress magneto-hydro-dynamic instabilities, in particular neoclassical tearing modes and sawteeth, using its new, multi-frequency, electron cyclotron heating system, which allows the on-line fast steering of the poloidal injection angle. The FCS is conceived to couple with different time scales. The general features, strategy and first tests for a reliable controller are presented.

[1] G. Gantenbein,et al. Current status of the new ECRH system for ASDEX upgrade , 2005, 2005 Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics.

[2] E. J. Strait,et al. COMPLETE SUPPRESSION OF THE M=2/N-1 NEOCLASSICAL TEARING MODE USING ELECTRON CYCLOTRON CURRENT DRIVE ON DIII-D , 2003 .

[3] G. Gantenbein,et al. Experiments on neoclassical tearing mode stabilization by ECCD in ASDEX Upgrade , 1999 .

[4] Gunter,et al. Complete suppression of neoclassical tearing modes with current drive at the electron-cyclotron-resonance frequency in ASDEX upgrade tokamak , 2000, Physical review letters.

[5] F. Jenko,et al. Transport Barriers in Electron and Ion Transport Dominated Regimes. Invited Paper , 2000 .

[6] D. A. Humphreys,et al. Active control for stabilization of neoclassical tearing modes , 2005 .

[7] K. Kajiwara,et al. Complete stabilization of a tearing mode in steady state high-βp H-mode discharges by the first harmonic electron cyclotron heating/current drive on JT-60U , 2000 .

[8] D. A. Humphreys,et al. CONTROL OF NEOCLASSICAL TEARING MODES IN DIII-D , 2001 .