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Plasma Discharge Management for Long-Pulse Tokamak Operation

Rémy Nouailletas, Philippe Moreau, Sylvain Brémond, Oliviero Barana, François Saint-Laurent, Jean-François Artaud, Jérome Bucalossi, Laurent Colas, Annika Ekedahl, Oussama Semlali, Tore Supra Team

Fusion Science and Technology / Volume 64 / Number 1 / July 2013 / Pages 13-28

Technical Paper

Achieving high-performance long-duration plasma discharges in tokamaks is one of the most important challenges to be addressed in the perspective of the development of a power plant. For this purpose, real-time handling of off-normal events has to be performed through a dedicated plasma discharge management system. In this paper, we describe the main requirements and features of such a system. A generic architecture, based on the principle of subsidiarity, is proposed. A full set of actions is covered, starting from the local subsystems up to the tokamak as a whole, with different levels of mitigation strategies. A simulation of a relevant test case, based on the Tore Supra tokamak, showing the basic principles of the study, is also presented.

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