Automating the Design of Tokamak Experiment Scenarios

Abstract : The real-time control of plasma position, shape and current in a tokamak has to be ensured by a number of electrical circuits consisting of voltage suppliers and axisymmetric coils. Finding good target voltages/currents for the control systems is a very laborious, non-trivial task due to non-linear effects of plasma evolution. We introduce here an optimal control formulation to tackle this task and present in detail the main ingredients for finding numerical solutions: the finite element discretization, accurate linearizations and Sequential Quadratic Programming. Case studies for the tokamaks WEST and HL-2M highlight the flexibility and broad scope of the proposed optimal control formulation.
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https://hal.archives-ouvertes.fr/hal-01959583
Contributor : Holger Heumann <>
Submitted on : Tuesday, December 18, 2018 - 6:23:20 PM
Last modification on : Thursday, February 7, 2019 - 3:36:36 PM
Long-term archiving on : Wednesday, March 20, 2019 - 12:14:16 PM

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  • HAL Id : hal-01959583, version 1

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Jacques Blum, Holger Heumann, Eric Nardon, Xiao Song. Automating the Design of Tokamak Experiment Scenarios. [Research Report] RR-9237, INRIA. 2018. ⟨hal-01959583⟩

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