Constrained stellarator coil curvature optimization with FOCUS
Keyword(s):
Finding less complicated coils that have adequately low field errors is a crucial step in stellarator development. One coil metric that is of high importance is the maximum curvature of the coil centreline, or coil single filament. Conductors cannot be bent below some threshold minimum radius of curvature. High coil curvatures can cause strains to exceed acceptable levels, especially in superconducting coils. We investigate three ways to optimize coil curvature and find that applying penalty functions to the coil curvature solves for coils that have a constrained maximum curvature and low field error. Penalty functions are implemented in FOCUS and coil solutions optimized for an HSX-like ‘plasma boundary’ are presented.
1977 ◽
Vol 35
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pp. 582-583
1988 ◽
Vol 46
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pp. 434-435
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1985 ◽
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pp. 480-481
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pp. 820-821
1990 ◽
Vol 48
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pp. 850-851
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1990 ◽
Vol 48
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pp. 198-199
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2019 ◽
Vol 62
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pp. 2400-2410
1983 ◽
Vol 44
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pp. C3-1033-C3-1036
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