Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Latest Developments in Data Analysis Tools for Disruption Prediction and for the Exploration of Multimachine Operational Spaces.
Year:2012
Research Areas
  • Electronic technology and of the communications
Information
Abstract
In the last years significant efforts have been devoted to the development of advanced data analysis tools to both predict the occurrence of disruptions and to investigate the operational spaces of devices, with the long term goal of advancing the understanding of the physics of these events and to prepare for ITER. On JET the latest generation of the disruption predictor called APODIS has been deployed in the real time network during the last campaigns with the new metallic wall. Even if it was trained only with discharges with the carbon wall, it has reached very good performance, with both missed alarms and false alarms in the order of a few percent (and strategies to improve the performance have already been identified). Since for the optimisation of the mitigation measures, predicting also the type of disruption is considered to be also very important, a new clustering method, based on the geodesic distance on a probabilistic manifold, has been developed. This technique allows automatic classification of an incoming disruption with a success rate of better than 85%. Various other manifold learning tools, particularly Principal Component Analysis and Self Organised Maps, are also producing very interesting results in the comparative analysis of JET and ASDEX Upgrade (AUG) operational spaces, on the route to developing predictors capable of extrapolating from one device to another.
International
Si
Congress
The 24th IAEA Fusion Energy Conference
960
Place
San Diego, CA
Reviewers
Si
ISBN/ISSN
00-0000-000-0
Start Date
08/10/2012
End Date
13/10/2012
From page
1
To page
8
The 24th IAEA Fusion Energy Conference
Participants
  • Autor: A. Murari (ENEA)
  • Autor: J. Vega (CIEMAT)
  • Autor: P. Boutot (Ecole Polytechnique de Palaiseau)
  • Autor: B. Cannas (University of Cagliari)
  • Autor: S. Dormido-Canto (UNED)
  • Autor: A. Fanni (University of Cagliari)
  • Autor: Juan Manuel Lopez Navarro (UPM)
  • Autor: R. Moreno (CIEMAT)
  • Autor: A. Pau (University of Cagliari)
  • Autor: A Sias (University of Cagliari)
  • Autor: J.M. Ramírez (UNED)
  • Autor: G. Verdoolaege (Ghent University)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Investigación en Instrumentación y Acústica Aplicada (I2A2)
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