Author/Authors :
Moreau، نويسنده , , Ph. and Barana، نويسنده , , O. and Brémond، نويسنده , , S. and Colas، نويسنده , , L. and Ekedahl، نويسنده , , A. and Saint-Laurent، نويسنده , , F. and Balorin، نويسنده , , C. and Caulier، نويسنده , , G. and Desgranges، نويسنده , , C. and Guilhem، نويسنده , , D. and Jouve، نويسنده , , M. and Kazarian، نويسنده , , F. and Lombard، نويسنده , , G. and Millon، نويسنده , , L. and Mitteau، نويسنده , , R. and Mollard، نويسنده , , P. and Roche، نويسنده , , H. and Travere، نويسنده , , J.M.، نويسنده ,
Abstract :
Using the Tore Supra infrared thermography diagnostics, a new real time feedback control has been successfully implemented to maximize additional RF power while preventing plasma facing components (PFCs) from overheating and damage. As a first step, a thermography feedback control has been used to detect and extinguish electric arcs on lower hybrid current drive (LHCD) launchers. Secondly, heating sources on PFCs have been identified highlighting the role of the power from each ion cyclotron resonance heating (ICRH) antenna and LHCD launcher and the interactions between them. A new feedback control algorithm was developed to control the additional power. The real time feedback control of PFC temperatures which makes part of an integrated feedback controller, is a reliable tool routinely used as a basic protection system. Furthermore, it has proven its capability to operate in parallel with other control schemes such as the current profile control.
Keywords :
Real time feedback control , Infrared monitoring , Tore Supra , Plasma heating
