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Real-time profile control for advanced Tokamak operation
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2008 (English)In: AIP Conf. Proc., 2008, 430-433 p.Conference paper, Published paper (Refereed)
Abstract [en]

Simultaneous control of the plasma shape, the magnetic and kinetic plasma profiles (such as the safety factor, q(x), and gyro-normalized temperature gradient, ρTe *;(x), respectively) and the boundary flux is being investigated on JET, and has potential applications in the operation of ITER steady state advanced tokamak discharges. The control of radially distributed parameters was achieved for the first time on JET in 2004 [1-4]. The controller was based on the static plasma response only. The approach newly implemented on JET aims to use a dynamical plasma model, all the available heating and current drive (H&CD) systems, and the poloidal field (PF) system in an optimal way to achieve a set of requested magnetic and kinetic profiles. This paper describes the new model-based optimal profile controller which has been tested during the last 2007 experimental campaign. The controller aims to use the combination of heating and current drive systems - and optionally the PF system. First experimental results of current profile control obtained during the last 2007 JET campaign are presented.

Place, publisher, year, edition, pages
2008. 430-433 p.
Series
AIP Conference Proceedings, ISSN 0094-243X ; 988
Keyword [en]
Internal transport Barrier, Model based controller, Real-time profile control, Tokamak
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-154464DOI: 10.1063/1.2905109ISI: 000254687600068Scopus ID: 2-s2.0-42449086793ISBN: 9780735405073 (print)OAI: oai:DiVA.org:kth-154464DiVA: diva2:758101
Conference
International Conference on Burning Plasma Diagnostics, 24-28 September 2007, Varenna, Italy
Note

QC 20141024

Available from: 2014-10-24 Created: 2014-10-20 Last updated: 2014-10-24Bibliographically approved

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