Control-oriented modeling of the plasma particle density in tokamaks and application to real-time density profile reconstruction

TitleControl-oriented modeling of the plasma particle density in tokamaks and application to real-time density profile reconstruction
Publication TypeJournal Article
Year of Publication2018
AuthorsT.C Blanken, F. Felici, C.J Rapson, M.R de Baar, W.PMH Heemels
JournalFusion Engineering and Design
Volume126
Pagination87-103
Date Published01/2018
Abstract

A model-based approach to real-time reconstruction of the particle density profile in tokamak plasmas is presented, based on a dynamic state estimator. Traditionally, the density profile is reconstructed in real-time by solving an ill-conditioned inversion problem using a measurement at a single point in time. This approach is sensitive to diagnostics errors and failure. The inclusion of a dynamic model in a real-time estimation algorithm allows for reliable reconstruction despite diagnostic errors. Predictive simulations show that the model can reproduce the density evolution of discharges on TCV and ASDEX-Upgrade after tuning of a few parameters. Offline reconstructions using experimental data from TCV show accurate estimation of the density profile and show examples of fault detection of interferometry signals.

URLhttp://www.euro-fusionscipub.org/wp-content/uploads/eurofusion/WPMST1PR16_16764_submitted.pdf
DOI10.1016/j.fusengdes.2017.11.006
Division

FP

Department

TP

PIDbc5108246d289254e66970441bd0562f
Alternate TitleFusion Eng. Des.
LabelOA

Go back one page.