@article{8363, author = {T. C. Blanken and F. Felici and C. J. Rapson and M. R. de Baar and W. P. M. H. Heemels}, title = {Control-oriented modeling of the plasma particle density in tokamaks and application to real-time density profile reconstruction}, 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. }, year = {2018}, journal = {Fusion Engineering and Design}, volume = {126}, pages = {87-103}, month = {01/2018}, url = {http://www.euro-fusionscipub.org/wp-content/uploads/eurofusion/WPMST1PR16_16764_submitted.pdf}, doi = {10.1016/j.fusengdes.2017.11.006}, language = {eng}, }