Analysis of the ITER ICRH decoupling and matching system

M. Vervier, A. Messiaen, P. Dumortier

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The reference ITER ICRH load resilient matching system uses four 3dB hybrid power splitters. It is proposed to use a "double stub" tuner (DST) configuration for the matching on the reference load and a decoupling system placed between the antenna plug and the matching system to reduce the mutual coupling effects and also to actively control the array current spectrum while requesting the same forward power from all 4 power sources. The paper analyzes (i) the optimization of the matching layout e.g. by varying the distance between the stubs and by the use of two capacitors taking into account the role of the decouplers on the matching requirements; (ii) the practical realization of the decouplers and their insertion into the circuit; (iii) the requests in voltage and current capabilities in the different parts of the system. The paper presents solutions for saving space and to decrease the ratings of the components. The computations are done with the array loading simulated by the TOPICA matrix.

Original languageEnglish
Title of host publicationRadio Frequency Power in plasmas - Proceedings of the 18th Topical Conference
Pages297-300
Number of pages4
DOIs
Publication statusPublished - 2009
Event18th Topical Conference on Radio Frequency Power in plasmas - Gent, Belgium
Duration: 24 Jun 200926 Jun 2009

Publication series

NameAIP Conference Proceedings
Volume1187
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference18th Topical Conference on Radio Frequency Power in plasmas
Country/TerritoryBelgium
CityGent
Period24/06/0926/06/09

Keywords

  • ICRH
  • ITER

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