A control approach for plasma density in tokamak machines

Luca Boncagni, Daniele Pucci, F. Piesco, Emanuele Zarfati, G. Mazzitelli, S. Monaco

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Abstract

In tokamak machines, chamber pre-fill is crucial to attain plasma breakdown, while plasma density control is instrumental for several tasks such as machine protection and achievement of desired plasma performances. This paper sets the principles of a new control strategy for attaining both chamber pre-fill and plasma density regulation. Assuming that the actuation mean is a piezoelectric valve driven by a varying voltage, the proposed control laws ensure convergence to reference values of chamber pressure during pre-fill, and of plasma density during plasma discharge. Experimental results at FTU are presented to discuss weaknesses and strengths of the proposed control strategy. The whole system has been implemented by using the MARTe framework [1]. © 2013 Euratom-ENEA Association sulla Fusione.
Original languageEnglish
Pages (from-to)1097 - 1100
Number of pages4
JournalFusion Engineering and Design
Volume88
Issue number6-8
DOIs
Publication statusPublished - 2013
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Boncagni, L., Pucci, D., Piesco, F., Zarfati, E., Mazzitelli, G., & Monaco, S. (2013). A control approach for plasma density in tokamak machines. Fusion Engineering and Design, 88(6-8), 1097 - 1100. https://doi.org/10.1016/j.fusengdes.2013.03.025