A Software Tool for the Design of the Current Limit Avoidance System at the JET Tokamak

Author

De Tommasi, Gianmaria ; Ambrosino, Giuseppe ; Galeani, Sergio ; Maviglia, Francesco ; Neto, André Cabrita ; Pironti, Alfredo ; Varano, Gianluca ; Vitelli, Riccardo ; Zaccarian, Luca

Author_Institution

Assoc. EURATOM-ENEA-CREATE, Univ. di Napoli Federico II, Naples, Italy

Volume

40

Issue

8

fYear

2012

Firstpage

2056

Lastpage

2064

Abstract

A current limit avoidance (CLA) system has been proposed to avoid current saturation in the poloidal field (PF) coils of the Joint European Torus tokamak when the eXtreme Shape Controller is used to control the plasma shape. CLA uses the redundancy of the PF coil system to automatically obtain almost the same plasma shape with a different combination of control currents. This paper describes the set of graphic tools that has been recently developed to aid the design of the CLA parameters by nonexpert users.

Keywords

Tokamak devices; control systems; plasma toroidal confinement; shape control; software tools; Joint European Torus tokamak; control current combination; current limit avoidance parameter design; current limit avoidance system design; current saturation; extreme shape controller; graphic tools; plasma shape; poloidal field coil system redundancy; software tool; Coils; Cost function; Generators; Resource management; Shape; Tokamaks; Software tools; tokamak control; tokamak control system validation;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2012.2203153

Filename

6236203