Erlangen 2018 – scientific programme

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P: Fachverband Plasmaphysik

P 11: Helmholtz Graduate School - Poster

P 11.24: Poster

Tuesday, March 6, 2018, 16:15–18:15, Redoutensaal

An algorithm for stellarator coil optimization that takes engineering tolerances into account — •Jim-Felix Lobsien, Michael Drevlak, Thomas Sunn Pedersen, and W7-X Team — Max-Planck Institut für Plasmaphysik, Greifswald, Germany

Recently designed optimised stellarator experiments have suffered from very low construction tolerances. Deviations of the central coil system are unavoidable during fabrication of the coils, and assembly of the coil system. In this paper, we present a new approach that incorporates reduced sensitivity to construction tolerances of the coil system into the optimization routine. The approach was tested within the framework of the existing coil optimization scheme for Wendelstein 7-X. The results are compared with those of a coil set obtained by the original optimisation. The result is a coil system with higher tolerances, such that small deviations do not cause deterioration of the properties important for fusion performance.