Scattering-matrix arc detection on the JET ITER-like ICRH antenna

M. Vrancken, A. Argouarch, T. Blackman, P. Dumortier, F. Durodié, M. Evrard, R. H. Goulding, M. Graham, S. Huygen, Ph Jacquet, A. Kaye, E. A. Lerche, M. P.S. Nightingale, D. Van Eester, M. Vervier

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

Abstract

Operating ion cyclotron resonance heating (ICRH) antennas at high power density puts them at risk of arcing which reduces the coupled power to the plasma because the perturbed impedance match triggers the voltage standing wave ratio (VSWR) based generator trip system but even worse might damage the antenna beyond repair because of the arc's localised energy deposition. New antennas are designed to operate in a load tolerant way which creates low impedance zones that are especially at risk since the existing VSWR protection systems are less sensitive to arcs in these areas. To protect these low impedance areas, a new arc protection system referred as scattering matrix arc detection (SMAD) has been proposed. This paper describes the basic operating principle and implementation in hard- and software for the JET ITER-like antenna (ILA), with testbed and preliminary JET commissioning results. Crown

OriginalspracheEnglisch
Seiten (von - bis)1953-1960
Seitenumfang8
FachzeitschriftFusion Engineering and Design
Jahrgang84
Ausgabenummer7-11
DOIs
PublikationsstatusVeröffentlicht - Juni 2009

Fingerprint

Untersuchen Sie die Forschungsthemen von „Scattering-matrix arc detection on the JET ITER-like ICRH antenna“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren