Author/Authors :
Felton، نويسنده , , R. and Joffrin، نويسنده , , E. and Murari، نويسنده , , A. and Zabeo، نويسنده , , L. and Sartori، نويسنده , , F. Del Piccolo، نويسنده , , F. and Farthing، نويسنده , , J. and Budd، نويسنده , , T. and Dorling، نويسنده , , S. and McCullen، نويسنده , , P. and Harling، نويسنده , , Perry J. and Dalley، نويسنده , , S. and Goodyear، نويسنده , , A. and Stephen، نويسنده , , Leslie A. and Card، نويسنده , , P. and Bright، نويسنده , , M. D. Lucock، نويسنده , , R. and Jones، نويسنده , , E. and Griph، نويسنده , , S. and Hogben، نويسنده , , C. and Beldishevski، نويسنده , , M. and Buckley، نويسنده , , M. and Davis، نويسنده , , J. and Young، نويسنده , , I. and Hemming، نويسنده , , Curtis O. and Wheatley، نويسنده , , M. and Heesterman، نويسنده , , P. and Lloyd، نويسنده , , G. and Walters، نويسنده , , Stephen M. and Bridge، نويسنده , , R. and Leggate، نويسنده , , H. and Howell، نويسنده , , D. and Zastrow، نويسنده , , K.-D and Giroud، نويسنده , , C. and Coffey، نويسنده , , I. and Hawkes، نويسنده , , N. and Stamp، نويسنده , , M. and Barnsley، نويسنده , , R. and Edlington، نويسنده , , T. and Guenther، نويسنده , , K. and Gowers، نويسنده , , C. and Popovichef، نويسنده , , S. and Huber، نويسنده , , A. and Ingesson، نويسنده , , C. and Mazon، نويسنده , , D. and Moreau، نويسنده , , D. and Alves، نويسنده , , D. and Sousa، نويسنده , , J. and Riva، نويسنده , , M. and Barana، نويسنده , , O. and Bolzonella، نويسنده , , T. and Valisa، نويسنده , , M. and Innocente، نويسنده , , P. Eccher Zerbini، نويسنده , , M. and Bosak، نويسنده , , K. and Blüm، نويسنده , , J. and Vitale، نويسنده , , E. and Crisanti، نويسنده , , F. and de la Luna، نويسنده , , E. and Sanchez، نويسنده , , J.، نويسنده ,
Abstract :
Over the past few years, the preparation of ITER-relevant plasma scenarios has been the main focus of experimental activity on tokamaks. The development of integrated, simultaneous, real-time controls of plasma shape, current, pressure, temperature, radiation, neutron profiles and also impurities, ELMs and MHD are now seen to be essential for further development of quasi-steady state conditions with feedback, or the stabilisation of transient phenomena with event-driven actions. For this thrust, the EFDA JET Real-Time Project has developed a set of real-time plasma measurements, experiment control and communication facilities.
asma diagnostics used for real-time experiments are Far Infra Red interferometry, polarimetry, visible, UV and X-ray spectroscopy, LIDAR, bolometry, neutron and magnetics. Further analysis systems produce integrated results, such as temperature profiles on geometry derived from MHD equilibrium solutions.
tuators include toroidal, poloidal and divertor coils, gas and pellet fuelling, neutral beam injection, radio frequency (ICRH) waves and microwaves (LH). The heating/fuelling operators can either define a power or gas request waveform or select the real-time instantaneous power/gas request from the real-time experiment central control (RTCC) system.
al-time experiment control system provides both a high-level, control-programming environment and interlocks with the actuators. A MATLAB facility is being developed for the development of more complex controllers.
asma measurement, controller and plant control systems communicate in ATM network.
DA Real-Time Project is essential groundwork for future reactors such as ITER. It involves many staff from several institutions. The facility is now frequently used in experiments.
ork has been conducted under the European Fusion Development Agreement and is partly funded by Euratom and the UK Engineering and Physical Sciences Research Council.
