The modeling of a tokamak plasma discharge, from first principles to a flight simulator. (1st April 2022)

• Record Type: Journal Article
• Authors: Fable, E; Janky, F; Treutterer, W; Englberger, M; Schramm, R; Muraca, M; Angioni, C; Kudlacek, O; Poli, E; Reich, M; Siccinio, M; Tardini, G; Weiland, M; Wu, C; Zohm, H
• Is Part Of: Plasma physics and controlled fusion. Volume 64:Number 4(2022)
• Publication Date: 2022-04-01
• Subjects: tokamak -- flight simulator -- control -- modeling -- full discharge -- theory; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/1361-6587/ac466b
• Languages: English
• ISSNs: 0741-3335

Abstract

Abstract: A newly developed tool to simulate a tokamak full discharge is presented. The tokamak 'flight simulator' Fenix couples the tokamak control system with a fast and reduced plasma model, which is realistic enough to take into account several of the plasma non-linearities. A distinguishing feature of this modeling tool is that it only requires the pulse schedule (PS) as input to the simulator. The output is a virtual realization of the full discharge, whose time traces can then be used to judge if the PS satisfies control/physics goals or needs to be revised. This tool is envisioned for routine use in the control room before each pulse is performed, but can also be used off-line to correct PS in advance, or to develop and validate reduced models, control schemes for future machines like a commercial reactor, simulating realistic actuators and sensors behavior.