Bulletin of the American Physical Society
49th Annual Meeting of the Division of Plasma Physics
Volume 52, Number 11
Monday–Friday, November 12–16, 2007; Orlando, Florida
Session JP8: Poster Session IV: Education and Outreach; Undergraduate Research; Electron and Ion Beam/Space Charge; DIII-D I; Reversed Field Pinches; Energetic Ions and Electrons in Helicons
Tuesday, November 13, 2007
Rosen Centre Hotel Room: Grand Ballroom, 2:00pm - 5:00pm
Abstract ID: BAPS.2007.DPP.JP8.91
Abstract: JP8.00091 : Development of Model-Based Feedback Control for the Current Profile in DIII-D*
Preview Abstract Abstract
A key goal in control of an advanced tokamak (AT) discharge is to maintain safety factor (q) and pressure profiles that are compatible with MHD stability at high beta and at high fraction of bootstrap current. This will enable high fusion gain and non-inductive sustainment of the plasma current for steady-state operation. Active feedback control of the q profile evolution at DIII-D has been already demonstrated , and an open-loop control scheme has been proposed . We report up-to-date progress towards enabling model-based active control of the current profile during the plasma current ramp-up phase. New results on closed-loop control design, simulation assessment with Corsica, and initial open-loop-control experiments are presented.  J.R. Ferron, et al., Proc. 32nd EPS Conf. on Plasma Physics, vol. 29C (2005) 1069.  Y. Ou, et al., Proc. Am. Control Conf., New York (2007).
*Supported by the Pennsylvania Infrastructure Technology Alliance (PITA), the NSF CAREER award program (ECCS-0645086), and the US DOE under DE-FG02-92ER54141, DE-FC02-04ER54698, and W-7405-ENG-48.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.DPP.JP8.91
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700