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FP5

The effect of the feedback controller on superconducting tokamak AC losses

Funded under: FP5-EAECTP C

Abstract

Superconducting coils in a tokamak are subject to AC losses when the field transverse to the coil current varies. A simple model to evaluate the AC losses has been derived and benchmarked against a complete model used in the ITER design procedure. The influence of the feedback control strategy on the AC losses is examined using this model. An improved controller is proposed, based on this study.

Additional information

Authors: SCHARZ B, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH);SCHÄRZ B, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);LISTER J B, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);BRUZZONE P, EPFL-CRPP Fusion Technology, Villigen-PSI (CH);FAVEZ J-Y, EPFL-DGM-IA, Lausanne (CH);ZAPRETILINA E, Efremov Institute, St Petersburg (RU)
Bibliographic Reference: A paper published as an appendix to EPFL Internal Report LRP 741/02, December 2002, pp.25.
Availability: Available free of charge from: École Polytechnique Fédérale de Lausanne (EPFL), Ecublens, CH-1015 Lausanne. Fax: +41-21-6934747.
Record Number: 200315848 / Last updated on: 2003-01-31
Category: PUBLICATION
Original language: en
Available languages: en