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P: Fachverband Plasmaphysik
P 3: Magnetic Confinement II
P 3.2: Hauptvortrag
Montag, 16. März 2026, 16:45–17:15, KH 02.016
Optimizing divertor heat loads on Wendelstein 7-X us- ing multi-objective optimization — •Alexander Knieps1, Michael Endler2, Joachim Geiger2, Jiankun Hua3, Yunfeng Liang1,3, Dirk Naujoks2, Matthias Otte2, Vincenzo Sanfratello1, and Yutong Yang1 — 1Forschungszentrum Jülich GmbH, Institute of Fusion Energy and Nuclear Waste Management 1 - Plasmaphysik, Jülich, 52425, Germany — 2Max-Planck-Institut für Plasmaphysik, Greifswald, 17491, Germany — 3Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China
Modular stellarators such as Wendelstein 7-X offer considerable flexibility in their magnetic configuration space. Due to the many possible choices in configuration, it becomes possible to not optimize just for one target metric, but to combine multiple metrics into one study. Specialized methods exists for such multi-objective studies which can autonomously explore the Pareto front of different possible tradeoffs between objectives. In this talk, we show how to leverage multi-objective methods to explore configurations with reduced heat loads on plasma-facing components. Particularly, we explore how much heat loads can overall be reduced through tuning of the main coil currents, and then explore how much further reduction is possible by tolerating increased heat loads in other areas.
Keywords: Numerical Optimization; Heat Load Modeling; Multi-Objective Optimization