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Shape Control with the eXtreme Shape Controller During Plasma Current Ramp-Up and Ramp-Down at the JET Tokamak

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Abstract

The eXtreme Shape Controller (XSC) has been originally designed to control the plasma shape at JET during the flat-top phase, when the plasma current has a constant value. During the JET 2012 experimental campaigns, the XSC has been used to improve the shape control during the transient phases of plasma current ramp-up and ramp-down. In order to avoid the saturation of the actuators with these transient phases, a current limit avoidance system has been designed and implemented. This paper presents the experimental results achieved at JET during the 2012 campaigns using the XSC.

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Acknowledgments

This work was supported by EURATOM and carried out within the framework of the European Fusion Development Agreement, and by the Italian MIUR under PRIN Grant 2010SPS9B3. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

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Authors and Affiliations

  1. EURATOM-ENEA-CREATE/Università di Napoli Federico II, Via Claudio 21, 80125, Naples, Italy

    G. De Tommasi, G. Ambrosino & A. Pironti

  2. Centro Direzionale di Napoli, EURATOM-ENEA-CREATE/Università di Napoli Parthenope, Isola C4, 80143, Naples, Italy

    M. Ariola

  3. EURATOM-ENEA, Frascati, Italy

    G. Calabrò

  4. Dipartimento di Informatica, Sistemi e Produzione, Università di Roma, Tor Vergata, Rome, Italy

    S. Galeani, G. Varano & R. Vitelli

  5. EURATOM-ENEA-CREATE, Via Claudio 21, 80125, Naples, Italy

    F. Maviglia

  6. EURATOM-CCFE, Culham Science Centre, Abingdon, OX14 3DB, UK

    F. G. Rimini

  7. European Commission, 1049, Brussels, Belgium

    A. C. C. Sips

  8. CNRS, LAAS, 7 Avenue du Colonel Roche, 31400, Toulouse, France

    L. Zaccarian

  9. Université de Toulouse, LAAS, 31400, Toulouse, France

    L. Zaccarian

  10. Dipartimento di Ingegneria Industriale, University of Trento, Trento, Italy

    L. Zaccarian

Authors
  1. G. De Tommasi
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  2. G. Ambrosino
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  3. M. Ariola
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  4. G. Calabrò
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  5. S. Galeani
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  6. F. Maviglia
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  7. A. Pironti
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  8. F. G. Rimini
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  9. A. C. C. Sips
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  10. G. Varano
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  11. R. Vitelli
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  12. L. Zaccarian
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JET-EFDA Contributors

Corresponding author

Correspondence to G. De Tommasi.

Additional information

See the Appendix of F. Romanelli et al., Proceedings of the 24th IAEA Fusion Energy Conference 2012, San Diego, USA.

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De Tommasi, G., Ambrosino, G., Ariola, M. et al. Shape Control with the eXtreme Shape Controller During Plasma Current Ramp-Up and Ramp-Down at the JET Tokamak. J Fusion Energ 33, 149–157 (2014). https://doi.org/10.1007/s10894-013-9652-7

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  • DOI: https://doi.org/10.1007/s10894-013-9652-7

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