Advanced tokamak profile evolution in DIII-D
نویسندگان
چکیده
M. Murakami, M.R. Wade, J.C. DeBoo, C.M. Greenfield, T.C. Luce, M.A. Makowski, C.C. Petty, G.M. Staebler, T.S. Taylor, M.E. Austin, D.R. Baker, R.V. Budny, K.H. Burrell, T.A. Casper, M. Choi, J.R. Ferron, A.M. Garofalo, I.A. Gorelov, R.J. Groebner, R. La Haye, A.W. Hyatt, R.J. Jayakumar, K. Kajiwara, J.E. Kinsey, L.L. Lao, J. Lohr, D. McCune, R.I. Pinsker, P.A. Politzer, R. Prater, ( b ) H.E. St. John, and W.P. West
منابع مشابه
First-Principles-Driven Model-Based Control of the Poloidal Magnetic Flux Profile at the DIII-D Tokamak
Efficient, high-gain operation of a tokamak device requires the achievement of certain radial shapes for the toroidal current profile. The evolution in time of the toroidal current profile in tokamaks is related to the evolution of the poloidal magnetic flux profile. A model-based control approach for the regulation of the poloidal magnetic flux profile at the DIII-D tokamak is proposed in this...
متن کاملAdvanced Tokamak research at the DIII-D National Fusion Facility in support of ITER
Fusion energy research aims to develop an economically and environmentally sustainable energy system. The tokamak, a doughnut shaped plasma confined by magnetic fields generated by currents flowing in external coils and the plasma, is a leading concept. Advanced Tokamak (AT) research in the DIII–D tokamak seeks to provide a scientific basis for steady-state high performance operation. This nece...
متن کاملPlasma vertical stabilization with actuation constraints in the DIII-D tokamak
In the advanced tokamak (AT) operating mode of the DIII-D tokamak, an integrated multivariable controller takes into account highly coupled influences of plasma equilibrium shape, profile, and stability control. Time-scale separation in the system allows a multi-loop design: the inner loop closed by the nominal vertical controller designed to control a linear exponentially unstable plant and th...
متن کاملOT 7 Particle Simulations of Alfvén Modes in Reversed-Shear DIII-D Discharges Heated by Neutral Beams∗
A rich spectrum of oscillations in the Alfvénic range has been observed in DIII-D tokamak reversedshear discharges heated by neutral beams. During the discharge phase characterized by Alfvénic activity, the energetic particle density profile, as calculated by a classical deposition model (TRANSP), appears to be much more peaked than that observed experimentally, as inferred, e.g., from the equi...
متن کاملAntiwindup Scheme for Plasma Shape Control with Rate and Magnitude Actuation Constraints in the DIII-D Tokamak*
The Advanced Tokamak (AT) operating mode is the principal focus of the DIII-D tokamak. In order to be prepared for the higher control demands arising in AT scenarios, current efforts are focused on the development of an integrated multivariable controller to take into account the highly coupled influences of equilibrium shape, profile, and stability control. The first step of this project is th...
متن کاملGa – a 23246 Automated Fault Detection for Diii – D Tokamak Experiments
An automated fault detection software system has been developed and was used during 1999 DIII–D plasma operations. The Fault Identification and Communication System (FICS) executes automatically after every plasma discharge to check dozens of subsystems for proper operation and communicates the test results to the tokamak operator. This system is now used routinely during DIII–D operations and ...
متن کامل