NDLI: The Role of Uncertainty in the Design of a Control System for Magneto Hydro Dynamic Instabilities in a Tokamak

Content Provider	IEEE Xplore Digital Library
Author	D'Antona, G. Cirant, S. Farina, D. Gandini, F. Manini, A. Zohm, H.
Copyright Year	2007
Description	Author affiliation: Politecnico di Milano, Milan (D'Antona, G.)
Abstract	A tokamak is a magnetic confinement system designed for achieving the conditions for nuclear fusion reactions. The regime of stable operation in current and density in a tokamak is limited by disruptions which involve sudden loss of confinement. Density limit disruptions are connected with the evolution of Magneto Hydro Dynamics (MHD) instabilities associated to magnetic islands (tearing modes). Active control of MHD instabilities is important in order to improve tokamak performance. Localized heating by electron cyclotron heating systems (ECH) is a promising tool for an active control of the MHD behaviour of the discharge. The ECH heating system, composed by several high power ECH line sources that can be steered independently, must be controlled in order to deposit the heating power in a plasma layer as close as possible to the magnetic island position In order to assure the fastest stabilization action of the feedback control system a new scheme has been proposed for the International Thermonuclear Reactor (ITER) that will be experimented in the next two years on the German tokamak ASDEX Upgrade. The novelty of the proposed control scheme is that the control action will make use explicitly not only on the estimate of the magnetic island and ECH heating plasma layer positions, but also on the uncertainties of these estimates.
Starting Page	133
Ending Page	136
File Size	2016848
Page Count	4
File Format	PDF
ISBN	9781424409327
DOI	10.1109/AMUEM.2007.4362585
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-16
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Uncertainty Magnetohydrodynamics Bayesian estimation Magnetic confinement Heating Fusion reactors measurement uncertainty Control systems Tokamaks Temperature control Cyclotrons Electrons
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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