Maximum Likelihood Estimation of diffusion and convection in tokamaks using infinite domains

Matthijs van Berkel, Gerd Vandersteen, Hans Zwart, Dick Hogeweij, Marco De Baar

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)
7 Downloads (Pure)

Abstract

A new method to identify the spatial dependent parameters describing the heat transport, i.e. diffusion and convection, in fusion reactors is presented. These parameters determine the performance of fusion reactors. The method is based on local transfer functions, which are defined between two measurement locations. Estimation of the local transfer functions results in a model of the spatial dependent diffusion and convection. The parameters of the local transfer functions are estimated using Maximum Likelihood Estimation in the frequency domain. This is necessary, because both measurements (input and output of the transfer function) contain noise. Moreover, confidence bounds and validation tests can be used in this framework. Finally, experimental results are presented, which show that the diffusion and convection can be estimated. In this case, the uncertainty bounds are too large on the convection to conclude its presence.

Original languageEnglish
Title of host publication2013 IEEE International Conference on Control Applications, CCA 2013
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages1230-1234
Number of pages5
ISBN (Electronic)9781479915590
DOIs
Publication statusPublished - 1 Jan 2013
Externally publishedYes
Event2013 IEEE International Conference on Control Applications, CCA 2013 - Hyderabad, India
Duration: 28 Aug 201330 Aug 2013

Publication series

NameIEEE International Conference on Control Applications
PublisherIEEE
Volume2013
ISSN (Print)1085-1992

Conference

Conference2013 IEEE International Conference on Control Applications, CCA 2013
Abbreviated titleCCA 2013
CountryIndia
CityHyderabad
Period28/08/1330/08/13

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    van Berkel, M., Vandersteen, G., Zwart, H., Hogeweij, D., & De Baar, M. (2013). Maximum Likelihood Estimation of diffusion and convection in tokamaks using infinite domains. In 2013 IEEE International Conference on Control Applications, CCA 2013 (pp. 1230-1234). [6662920] (IEEE International Conference on Control Applications; Vol. 2013). Piscataway, NJ: IEEE. https://doi.org/10.1109/CCA.2013.6662920