Reactor-scale stellarators with force and torque minimized dipole coils
In this work, we utilize new coil objectives for stellarator optimization with autodifferentiation, including pointwise and net coil–coil forces and torques. We use these methods to perform the first large-scale optimization of planar dipole coil arrays, since arrays of small and geometrically simpl...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Nuclear Fusion |
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| Online Access: | https://doi.org/10.1088/1741-4326/adc318 |
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| _version_ | 1850066645598339072 |
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| author | Alan A. Kaptanoglu Alexander Wiedman Jacob Halpern Siena Hurwitz Elizabeth J. Paul Matt Landreman |
| author_facet | Alan A. Kaptanoglu Alexander Wiedman Jacob Halpern Siena Hurwitz Elizabeth J. Paul Matt Landreman |
| author_sort | Alan A. Kaptanoglu |
| collection | DOAJ |
| description | In this work, we utilize new coil objectives for stellarator optimization with autodifferentiation, including pointwise and net coil–coil forces and torques. We use these methods to perform the first large-scale optimization of planar dipole coil arrays, since arrays of small and geometrically simple coils have been proposed to partially produce the 3D magnetic fields for stellarators, generate advantageous magnetic field perturbations in tokamaks, and provide active, real-time control capabilities. We perform an ablation study to show that minimizing the orientation and location of each coil may be essential to get coil forces, coil torques, and field errors to tolerable levels. We conclude with solutions for three reactor-scale quasi-symmetric stellarators by jointly optimizing nonplanar TF coils and planar coil arrays. |
| format | Article |
| id | doaj-art-844beaa985da4e9db1d2192921deaddf |
| institution | DOAJ |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-844beaa985da4e9db1d2192921deaddf2025-08-20T02:48:41ZengIOP PublishingNuclear Fusion0029-55152025-01-0165404602910.1088/1741-4326/adc318Reactor-scale stellarators with force and torque minimized dipole coilsAlan A. Kaptanoglu0https://orcid.org/0000-0002-6337-2907Alexander Wiedman1Jacob Halpern2https://orcid.org/0000-0001-9370-8160Siena Hurwitz3https://orcid.org/0000-0001-6659-9659Elizabeth J. Paul4https://orcid.org/0000-0002-9355-5595Matt Landreman5https://orcid.org/0000-0002-7233-577XCourant Institute of Mathematical Sciences, New York University , New York, NY 10012, United States of America; Department of Mechanical Engineering, University of Washington , Seattle, WA 98195, United States of AmericaIREAP, University of Maryland , College Park, MD 20742, United States of AmericaAPAM, Columbia University , New York City, NY 10027, United States of AmericaIREAP, University of Maryland , College Park, MD 20742, United States of AmericaAPAM, Columbia University , New York City, NY 10027, United States of AmericaIREAP, University of Maryland , College Park, MD 20742, United States of AmericaIn this work, we utilize new coil objectives for stellarator optimization with autodifferentiation, including pointwise and net coil–coil forces and torques. We use these methods to perform the first large-scale optimization of planar dipole coil arrays, since arrays of small and geometrically simple coils have been proposed to partially produce the 3D magnetic fields for stellarators, generate advantageous magnetic field perturbations in tokamaks, and provide active, real-time control capabilities. We perform an ablation study to show that minimizing the orientation and location of each coil may be essential to get coil forces, coil torques, and field errors to tolerable levels. We conclude with solutions for three reactor-scale quasi-symmetric stellarators by jointly optimizing nonplanar TF coils and planar coil arrays.https://doi.org/10.1088/1741-4326/adc318coil optimizationnuclear fusionstellaratorsautodifferentiationmagnetostaticsdipole coils |
| spellingShingle | Alan A. Kaptanoglu Alexander Wiedman Jacob Halpern Siena Hurwitz Elizabeth J. Paul Matt Landreman Reactor-scale stellarators with force and torque minimized dipole coils Nuclear Fusion coil optimization nuclear fusion stellarators autodifferentiation magnetostatics dipole coils |
| title | Reactor-scale stellarators with force and torque minimized dipole coils |
| title_full | Reactor-scale stellarators with force and torque minimized dipole coils |
| title_fullStr | Reactor-scale stellarators with force and torque minimized dipole coils |
| title_full_unstemmed | Reactor-scale stellarators with force and torque minimized dipole coils |
| title_short | Reactor-scale stellarators with force and torque minimized dipole coils |
| title_sort | reactor scale stellarators with force and torque minimized dipole coils |
| topic | coil optimization nuclear fusion stellarators autodifferentiation magnetostatics dipole coils |
| url | https://doi.org/10.1088/1741-4326/adc318 |
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