Title | Control-oriented modeling of the plasma particle density in tokamaks and application to real-time density profile reconstruction |
Publication Type | Journal Article |
Year of Publication | 2018 |
Authors | T.C Blanken, F. Felici, C.J Rapson, M.R de Baar, W.PMH Heemels |
Journal | Fusion Engineering and Design |
Volume | 126 |
Pagination | 87-103 |
Date Published | 01/2018 |
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. |
URL | http://www.euro-fusionscipub.org/wp-content/uploads/eurofusion/WPMST1PR16_16764_submitted.pdf |
DOI | 10.1016/j.fusengdes.2017.11.006 |
Division | FP |
Department | TP |
PID | bc5108246d289254e66970441bd0562f |
Alternate Title | Fusion Eng. Des. |
Label | OA |
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