Shape Control with the eXtreme Shape Controller During Plasma Current Ramp-Up and Ramp-Down at the JET Tokamak

G. de Tommasi (1) , G. Ambrosino (2) , M. Ariola (1, 2) , G. Calabrò (2) , Sergio Galeani (3) , F. Maviglia (2) , A. Pironti (1) , G. Rimini (4) , A. Sips (5) , Gianluca Varano (3) , R. Vitelli (3) , Luca Zaccarian (6, 7)

1 University of Naples Federico II = Università degli studi di Napoli Federico II
2 Istituto di Fisica del Plasma, EURATOM-ENEA-CNR Association
3 Università degli Studi di Roma Tor Vergata [Roma] = University of Rome Tor Vergata
4 EURATOM/CCFE Fusion Association
5 European Commission [Brussels]
6 LAAS-MAC - Équipe Méthodes et Algorithmes en Commande
7 Dipartimento di Ingegneria Industriale [Trento]

The eXtreme Shape Controller (XSC) has been originally designed to control the plasma shape at JET during the flat-top phase, when the plasma current has a constant value. During the JET 2012 experimental campaigns, the XSC has been used to improve the shape control during the transient phases of plasma current ramp-up and ramp-down. In order to avoid the saturation of the actuators with these transient phases, a current limit avoidance system has been designed and implemented. This paper presents the experimental results achieved at JET during the 2012 campaigns using the XSC.

Domaines: Automatique / Robotique

G. de Tommasi, G. Ambrosino, M. Ariola, G. Calabrò, Sergio Galeani, et al.. Shape Control with the eXtreme Shape Controller During Plasma Current Ramp-Up and Ramp-Down at the JET Tokamak. Journal of Fusion Energy, 2014, 33 (2), pp.149 - 157. ⟨10.1007/s10894-013-9652-7⟩. ⟨hal-01851142⟩