Paper Info
Title
Robust Vertical Control Of Iter Plasmas Via Static Output Feedback
Abstract
It is now well known that in order to reach plasma burning conditions it is needed to operate with high elongated unstable plasmas. These plasmas can be hardly stabilized using Poloidal Field coils placed outside the tokamak vessel, due to the shielding effects of the conducting structures. Therefore for the ITER tokamak it has been proposed to install in-vessel coils for the plasma vertical stabilization. In this paper we design a plasma vertical controller which makes use of both in-vessel and ex-vessel coils for the stabilization of ITER plasmas in various operating conditions. Besides guaranteeing robust stabilization of ITER plasmas, the controller also takes into account constraints on the current flowing in the in-vessel coils; such constraints are required to operate these coils safely. Furthermore the proposed controller is designed as a static-output feedback, where only three gains have to be specified. A sufficient condition is provided to design the controller by solving a Bilinear Matrix Inequalities feasibility problem. The effectiveness of the proposed approach is shown in simulation on a number of ITER plasma configurations.
Year
DOI
Venue
2011
10.1109/CCA.2011.6044476
2011 IEEE INTERNATIONAL CONFERENCE ON CONTROL APPLICATIONS (CCA)
Keywords
Field
DocType
computational modeling,nuclear engineering,computer model,tokamaks,feedback,robust control,mathematical model,shape,operant conditioning
Control theory,Bilinear matrix inequality,Tokamak,Electromagnetic shielding,Computer science,Control theory,Poloidal field,Control engineering,Plasma,Robust control
Conference
ISSN
Citations 
PageRank 
1085-1992
0
0.34
References 
Authors
2
4
Name
Order
Citations
PageRank
Giuseppe Ambrosino1507.69
Marco Ariola221117.35
Gianmaria De Tommasi37811.50
Alfredo Pironti433027.47