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Modeling of epoxy resin spacers for the 1 MV dc gas insulated line of ITER neutral beam injector system

BETTINI, Paolo
•
SPECOGNA, Ruben
•
DE LORENZI A.
altro
PESCE A.
2009
  • journal article

Periodico
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
Abstract
The spacers for the Gas Insulated Transmission Line for the ITER neutral beam injector will be designed to withstand the operating voltage of 1 MV dc. Electric charging processes of the spacer surface are then expected to play an important role in the final electric field distribution. Aim of the paper is to investigate the effects of the different conductivity properties of the SF6-Spacer insulating structures on the surface charge set-up, and to identify a procedure to minimize this charge. Based on the most updated literature, the paper presents and discusses the results of two newly developed simulation tools: the first consisting of a quasi-static non linear model for epoxy spacer based on finite element method code ANSYSTM, the other consisting of a spacer profile optimization package, whose kernel is based on a genetic algorithm. The numerical tools have been applied to post and disk spacer models of the gas insulated line; in particular, the optimization package has been used on the disk spacer, and the comparison between un-optimized and optimized spacer in terms of electric charge accumulated are presented and discussed.
DOI
10.1109/TDEI.2009.4784554
WOS
WOS:000263225200010
Archivio
http://hdl.handle.net/11390/878421
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-61349143751
http://dx.doi.org/10.1109/TDEI.2009.4784554
Diritti
closed access
Soggetti
  • Epoxy resin insulator...

  • HVDC insulation

  • Neutral Beam Injector...

  • Optimization method

  • Surface charging

  • Triple-junction

Scopus© citazioni
80
Data di acquisizione
Jun 2, 2022
Vedi dettagli
Visualizzazioni
2
Data di acquisizione
Apr 19, 2024
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