Calculation of 3-D magnetic fields produced by MHD active control systems in fusion devices

Paolo Bettini, Lionello Marrelli, Ruben Specogna

Research output: Contribution to journalArticle

11 Citations (Scopus)


An accurate control of the magnetic boundary of a thermonuclear plasma is an important issue in magnetic confinement research. The development of methods for the active control of magnetohydrodynamic instabilities and correction of error fields is mandatory in view of fusion reactors or experimental test reactors under design. Recently, a very effective control scheme, named clean mode control (CMC), has been proposed in a reversed field pinch experiment (RFX-mod). The CMC is based on the real-time correction (cleaning), under simplifying hypothesis, of the sideband harmonics in the magnetic field produced by the discrete local active coils. In this paper, we focus on the problem of carefully computing the penetration of sidebands through a realistic load assembly, but still with a simplified cylindrical geometry, to allow for a detailed comparison with the crude CMC algorithm without the additional complication of the coupling between the poloidal harmonics due to the toroidal geometry. © 2014 IEEE.
Original languageEnglish
Article number6749189
Pages (from-to)-
JournalIEEE Transactions on Magnetics
Issue number2
Publication statusPublished - Feb 2014
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this