Advanced feedback control of magnetohydrodynamic instabilities: comparison of compensation techniques for radial sensors (Articolo in rivista)

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  • Advanced feedback control of magnetohydrodynamic instabilities: comparison of compensation techniques for radial sensors (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0741-3335/54/12/124018 (literal)
Alternative label
  • P. Zanca; G. Marchiori; L. Marrelli; L. Piron; the RFX-mod team (2012)
    Advanced feedback control of magnetohydrodynamic instabilities: comparison of compensation techniques for radial sensors
    in Plasma physics and controlled fusion (Print); IOP Publishing Ltd., Bristol BS1 6BE (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • P. Zanca; G. Marchiori; L. Marrelli; L. Piron; the RFX-mod team (literal)
Pagina inizio
  • 124018 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Article Number: 124018. La rivista è pubblicata anche online con ISSN 1361-6587 (literal)
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  • http://iopscience.iop.org/0741-3335/54/12/124018/pdf/0741-3335_54_12_124018.pdf (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 54 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 12 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione 35127 Padova, Italy (literal)
Titolo
  • Advanced feedback control of magnetohydrodynamic instabilities: comparison of compensation techniques for radial sensors (literal)
Abstract
  • A survey of the feedback algorithms exploiting radial sensors applied in RFX-mod is presented. A Fourier variant of the 'intelligent shell', whose efficiency is limited by the aliasing coming from the active coils' sideband harmonics, and 'clean mode control', a method to single out and cancel this pollution, are compared for both tearing mode and resistive wall mode control. Simulations for 'explicit mode control', a different technique still to be tested in RFX-mod, are also discussed: this method removes the sidebands' effect by subtracting the entire vacuum coils' field. The conclusion is that 'clean mode control' is a better way to implement radial sensors. Since the latter have the technical advantage of allowing an arrangement outside the plasma-facing structures, the efficient control scheme developed at RFX-mod can be considered reactor-relevant. (literal)
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