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research article

First demonstration of real-time kinetic equilibrium reconstruction on TCV by coupling LIUQE and RAPTOR

Carpanese, F.  
•
Felici, F.  
•
Galperti, C.  
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June 1, 2020
Nuclear Fusion

Kinetic equilibrium reconstruction (KER) in tokamaks is the solution of the free-boundary MHD equilibrium that best fits the external magnetic measurements and the internal plasma profiles as imposed from modeling and/or available internal measurements. In this paper, for the first time, the KER has been performed in real-time by coupling the free-boundary equilibrium code LIUQE to the 1.5D transport code RAPTOR, during a TCV discharge. The transport code is used as a dynamic state observer evolving the current diffusion equation, the electron heat and particle diffusion equations and correcting the prediction with the measurements available in real-time, making use of the extended Kalman filter (EKF) method. The simple coupling strategy, based on a matching of the free functions (p ' TT '

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Type
research article
DOI
10.1088/1741-4326/ab81ac
Web of Science ID

WOS:000535550300001

Author(s)
Carpanese, F.  
Felici, F.  
Galperti, C.  
Merle, A.  
Moret, J. M.  
Sauter, O.  orcid-logo
Date Issued

2020-06-01

Publisher

IOP Publishing Ltd

Published in
Nuclear Fusion
Volume

60

Issue

6

Article Number

066020

Subjects

Physics, Fluids & Plasmas

•

Physics

•

kinetic equilibrium reconstruction

•

real-time

•

free-boundary equilibrium

•

liuqe

•

raptor

•

tokamak

•

inverse problem

•

density profile

•

tokamak

•

polarimetry

•

plasma

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SPC  
Available on Infoscience
June 7, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/169146
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