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Abstract

In tokamak à configuration variable (TCV), L-mode to H-mode transitions have been observed in a wide variety of plasma configurations. Two statistical methods, discriminant analysis and a nonlinear system identification, have been used to localize the boundary between the L-mode and H-mode domains in the multidimensional operational space. For control purposes, an estimate of the shortest distance between and actual position in the operational domain and the boundary is defined, and the parameters to modify in order to reach the transition are identified.

Additional information

Authors: MARTIN Y, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);BÜHLMANN F, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);BUHLMANN F, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH)
Bibliographic Reference: Article: Plasma Physics and Controlled Fusion, Vol. 40 (1998) pp. 697-701
Record Number: 199811010 / Last updated on: 1998-09-15
Category: PUBLICATION
Original language: en
Available languages: en