Determination of the plasma position for its real-time control in the COMPASS tokamak

• Published in: Fusion engineering and design Vol. 86; no. 6; pp. 1120 - 1124
• Main Authors: Janky, F., Havlicek, J., Valcárcel, D., Hron, M., Horacek, J., Kudlacek, O., Panek, R., Carvalho, B.B.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.2011; Elsevier
• Subjects: Algorithms; Applied sciences; COMPASS (programming language); Control systems; Controled nuclear fusion plants; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Feedback; Horizontal; Installations for energy generation and conversion: thermal and electrical energy; Magnetic fields; Plasma currents; Plasma position; Real time; Tokamak devices; Feedback; Real-time; Plasma position; Tokamak; Plasma; Nuclear fusion reactor; Real time; Algorithm; Magnetic field; Pressure; Plasma stabilization
• ISSN: 0920-3796; 1873-7196
• DOI: 10.1016/j.fusengdes.2011.01.143

An efficient horizontal and vertical stabilization of the plasma column position are essential for a reliable tokamak operation. Plasma position is generally determined by plasma current, plasma pressure and external vertical and horizontal magnetic fields. Such fields are generated by poloidal field coils and proper algorithm for the current control have to by applied, namely, in case of fast feedback loops. This paper presents a real-time plasma position reconstruction algorithms developed for the COMPASS tokamak. Further, its implementation in the MARTe (Multithreaded Application Real-Time executor) is described and the first results from test of the algorithm for real-time control of horizontal plasma positions are presented.