On-Line Confinement Regime Identification for the Discharge Control System at ASDEX Upgrade
- 1 January 1998
- journal article
- research article
- Published by Taylor & Francis in Fusion Technology
- Vol. 33 (1) , 84-96
- https://doi.org/10.13182/fst98-a19
Abstract
An 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.Keywords
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