Title :
An advanced plasma control system for the DIII-D tokamak
Author :
Ferron, J.R. ; Kellman, A. ; McKee, E. ; Osborne, T. ; Petrach, P. ; Taylor, T.S. ; Wight, J. ; Lazarus, E.
Author_Institution :
General Atomics, San Diego, CA, USA
fDate :
30 Sep-3 Oct 1991
Abstract :
An advanced plasma control system is being implemented for the DIII-D tokamak utilizing digital technology. This system will regulate the position and shape of tokamak discharges that range from elongated limiter to single-null divertor and double-null divertor with elongation as high as 2.6. Through use of a control algorithm which can be varied in real time this system is expected to provide more precise control of the DIII-D discharge shape than is possible in the analog control system presently in use. In addition to shape control the system will provide a platform for research on real-time optimization of discharge performance. A relatively simple design has been achieved through the use of a small number of very-high-speed digital processors coupled with high-speed data acquisition hardware. The frequency response is expected to be adequate to control the unstable vertical motion of highly elongated discharge shapes
Keywords :
Tokamak devices; control systems; digital control; fusion reactor instrumentation; fusion reactor theory and design; nuclear engineering computing; position control; DIII-D tokamak; advanced plasma control system; control algorithm; digital technology; double-null divertor; elongated limiter; high-speed data acquisition hardware; position; shape; single-null divertor; tokamak discharges; very-high-speed digital processors; Coils; Control systems; Digital systems; Magnetic flux; Plasma measurements; Power supplies; Real time systems; Shape control; Shape measurement; Tokamaks;
Conference_Titel :
Fusion Engineering, 1991. Proceedings., 14th IEEE/NPSS Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0132-3
DOI :
10.1109/FUSION.1991.218736
