NDLI: Rigid body passive and active stability of ITER

Content Provider	IEEE Xplore Digital Library
Author	Leuer, J.A. Wesley, J.C.
Copyright Year	1991
Description	Author affiliation: General Atomics, San Diego, CA, USA (Leuer, J.A.; Wesley, J.C.)
Abstract	Passive and active vertical stability properties of ITER (International Thermonuclear Experimental Reactor) are presented based on a linearized, rigid body model of plasma motion within a set of axisymmetric conducting elements. The proposed passive twin loops concept and a single, midplane symmetric coil pair are analyzed with emphasis on the active control problem. An ideal proportional/derivative controller is used to predict system performance for nominal and off-nominal plasma conditions. The proposed system is shown to meet the primary fast active control specifications for vertical control in ITER. Recommendations are made for improvements in performance based on active control coil position. The combined vacuum vessel and passive shell structure in ITER is shown to be sufficient to meet the design requirements for vertical passive stabilization and the power requirements for the active control system. The proposed system, operating with the baseline plasma, has a 105% margin against Alfven time scale growth and a growth rate of approximately 20 s/sup -1/. The active control system can stabilize a 10-cm initial displacement for the nominal plasma and a 5-cm displacement for the deteriorated plasma within a 1-GVA power supply limit.<>
Starting Page	1136
Ending Page	1139
File Size	345997
Page Count	4
File Format	PDF
ISBN	0780301323
DOI	10.1109/FUSION.1991.218671
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1991-09-30
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Control systems Plasma stability Plasma properties Coils Thermal stability Inductors PD control Proportional control System performance Vacuum systems
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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