Coil optimization methods for a planar coil stellarator
The planar coil stellarator design is a novel approach to producing the confining magnetic field of a stellarator plasma. The work presented here details the optimization of the two types of planar coils that are used in the planar coil design: the plasma encircling coils, and the shaping coils. The...
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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/ada56b |
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| author | T.G. Kruger M.F. Martin D.A. Gates the Thea Energy Team |
| author_facet | T.G. Kruger M.F. Martin D.A. Gates the Thea Energy Team |
| author_sort | T.G. Kruger |
| collection | DOAJ |
| description | The planar coil stellarator design is a novel approach to producing the confining magnetic field of a stellarator plasma. The work presented here details the optimization of the two types of planar coils that are used in the planar coil design: the plasma encircling coils, and the shaping coils. The plasma encircling coils provide the mean magnetic field and linking current, similar to the toroidal field (TF) coils in a tokamak. The plasma encircling coils can be rotationally symmetric TF-like coils and produce a $B\propto 1/R$ field, but optimizing their placement, tilt, and shaping can substantially reduce the magnetic field error. In addition, an array of dipole-like shaping coils, that lie on a surface between the plasma boundary and the encircling coils, correct for the residual magnetic field error following encircling coil optimization. As a proof-of-concept, it is shown that by optimizing both types of coils, subject to realistic engineering constraints, reasonable magnetic field errors of ∼1% have been achieved. Comparison to a traditional modular coil set reveals that similarly low magnetic field errors can be attained with the planar coil stellarator. |
| format | Article |
| id | doaj-art-ab0aa7c0f81c437c9dd29cd1ac7ae259 |
| institution | Kabale University |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-ab0aa7c0f81c437c9dd29cd1ac7ae2592025-01-28T12:14:49ZengIOP PublishingNuclear Fusion0029-55152025-01-0165202605110.1088/1741-4326/ada56bCoil optimization methods for a planar coil stellaratorT.G. Kruger0https://orcid.org/0000-0003-1462-3033M.F. Martin1https://orcid.org/0000-0003-2032-2894D.A. Gates2https://orcid.org/0000-0001-5679-3124the Thea Energy Team3Thea Energy , Kearny, NJ 07032, United States of AmericaThea Energy , Kearny, NJ 07032, United States of AmericaThea Energy , Kearny, NJ 07032, United States of AmericaThea Energy , Kearny, NJ 07032, United States of AmericaThe planar coil stellarator design is a novel approach to producing the confining magnetic field of a stellarator plasma. The work presented here details the optimization of the two types of planar coils that are used in the planar coil design: the plasma encircling coils, and the shaping coils. The plasma encircling coils provide the mean magnetic field and linking current, similar to the toroidal field (TF) coils in a tokamak. The plasma encircling coils can be rotationally symmetric TF-like coils and produce a $B\propto 1/R$ field, but optimizing their placement, tilt, and shaping can substantially reduce the magnetic field error. In addition, an array of dipole-like shaping coils, that lie on a surface between the plasma boundary and the encircling coils, correct for the residual magnetic field error following encircling coil optimization. As a proof-of-concept, it is shown that by optimizing both types of coils, subject to realistic engineering constraints, reasonable magnetic field errors of ∼1% have been achieved. Comparison to a traditional modular coil set reveals that similarly low magnetic field errors can be attained with the planar coil stellarator.https://doi.org/10.1088/1741-4326/ada56bThea energystellaratorsplanar coil stellaratorcoil optimizationplanar coils |
| spellingShingle | T.G. Kruger M.F. Martin D.A. Gates the Thea Energy Team Coil optimization methods for a planar coil stellarator Nuclear Fusion Thea energy stellarators planar coil stellarator coil optimization planar coils |
| title | Coil optimization methods for a planar coil stellarator |
| title_full | Coil optimization methods for a planar coil stellarator |
| title_fullStr | Coil optimization methods for a planar coil stellarator |
| title_full_unstemmed | Coil optimization methods for a planar coil stellarator |
| title_short | Coil optimization methods for a planar coil stellarator |
| title_sort | coil optimization methods for a planar coil stellarator |
| topic | Thea energy stellarators planar coil stellarator coil optimization planar coils |
| url | https://doi.org/10.1088/1741-4326/ada56b |
| work_keys_str_mv | AT tgkruger coiloptimizationmethodsforaplanarcoilstellarator AT mfmartin coiloptimizationmethodsforaplanarcoilstellarator AT dagates coiloptimizationmethodsforaplanarcoilstellarator AT thetheaenergyteam coiloptimizationmethodsforaplanarcoilstellarator |