Title :
Shape control with the XSC during plasma current ramp-up and ramp-down at the JET tokamak
Author :
De Tommasi, G. ; Ambrosino, G. ; Ariola, M. ; Calabro, G. ; Galeani, S. ; Maviglia, F. ; Pironti, A. ; Rimini, F.G. ; Sips, A.C.C. ; Varano, G. ; Vitelli, R. ; Zaccarian, Luca
Author_Institution :
Assoc. EURATOM-ENEA-CREATE, Univ. di Napoli Federico II, Naples, Italy
Abstract :
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 (CLA) has been designed and implemented. This paper discusses the CLA algorithm and presents the experimental results achieved at JET during the 2012 campaigns using the XSC.
Keywords :
Tokamak devices; actuators; control system synthesis; controllers; fusion reactor design; physical instrumentation control; plasma toroidal confinement; shape control; CLA algorithm; JET tokamak; XSC; actuators; current limit avoidance system; extreme shape controller; flat-top phase; plasma current ramp-down; plasma current ramp-up; shape control; transient phases; Programmable logic arrays; Current Limit Avoidance; Plasma shape control; Tokamak control; eXtreme Shape Controller;
Conference_Titel :
Decision and Control (CDC), 2013 IEEE 52nd Annual Conference on
Conference_Location :
Firenze
Print_ISBN :
978-1-4673-5714-2
DOI :
10.1109/CDC.2013.6759909
