On-Line Confinement Regime Identification for the Discharge Control System at ASDEX Upgrade

Autor: Franzen, Peter, Kaufmann, Michael, Mertens, Vitus F., Neu, Gregor, Raupp, Gerhard, Zehetbauer, Thomas
Zdroj: Fusion Technology; January 1998, Vol. 33 Issue: 1 p84-96, 13p
Abstrakt: AbstractAn algorithm is presented that identifies major confinement regimes on-line during a plasma discharge in the Tokamak ASDEX Upgrade. Apart from the ohmically heated regime with no additional heating power, low and high radiative L and H regimes are distinguished. The algorithm was successfully implemented in the ASDEX Upgrade discharge control system, allowing a dynamic control of the plasma discharge. In a first application, the control system recognized the falling back of the plasma from a high confinement regime to a low confinement regime and reacted accordingly, avoiding a disruption and enhancing the plasma performance by recovering the high confinement regime.
Databáze: Supplemental Index