Effects of power supply limits on control of MHD instabilities in fusion devices

Author

Villone, Fabio ; Pironti, Alfredo

Author_Institution

DIEI, Univ. di Cassino e del Lazio Meridionale, Cassino, Italy

fYear

2015

fDate

10-13 June 2015

Firstpage

498

Lastpage

501

Abstract

The evolution of plasma inside toroidal magnetic fusion devices can be often described by Magneto-Hydro-Dynamics (MHD) equations, which may predict the existence of unstable modes of evolution; this requires a feedback control system. Due to current/voltage limitations, there might be situations in which the power supply may not deliver the required current/voltage. This influences the effectiveness of the control and may even lead to a premature termination of the experiment. This paper presents a model-based quantification of the maximum plasma perturbation that the vertical stabilization system can counteract in ITER, due to given limitations in terms of maximum voltage of the power supplies.

Keywords

Tokamak devices; plasma instability; plasma magnetohydrodynamics; plasma toroidal confinement; ITER; MHD instabilities; feedback control system; magnetohydrodynamics equations; model-based quantification; plasma perturbation; power supply; toroidal magnetic fusion devices; unstable modes; Conductors; Copper; Geometry; Mathematical model; Plasmas; Power supplies; Toroidal magnetic fields; MHD instabilities; Magnetic fusion devices; feedback control; power supply limits;

fLanguage

English

Publisher

ieee

Conference_Titel

Environment and Electrical Engineering (EEEIC), 2015 IEEE 15th International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4799-7992-9

Type

conf

DOI

10.1109/EEEIC.2015.7165212

Filename

7165212