Designing Coils for Compact Stellarators

A method is presented for designing coils for compact stellarators. In contrast to methods that select a finite number of coils from an optimal continuous surface current distribution, the COILOPT code solves for the optimal parameters in an explicit representation of modular coils on a toroidal win...

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Bibliographic Details
Published in:Fusion science and technology 2002-03, Vol.41 (2), p.107-115
Main Authors: Strickler, Dennis J., Berry, Lee A., Hirshman, Steven P.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AXIAL SYMMETRY
DESIGN
DISTRIBUTION
ELECTRIC CURRENTS
ENGINEERING
MAGNETIC FIELD CONFIGURATIONS
PLASMA
STELLARATORS
SURFACES
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Summary:A method is presented for designing coils for compact stellarators. In contrast to methods that select a finite number of coils from an optimal continuous surface current distribution, the COILOPT code solves for the optimal parameters in an explicit representation of modular coils on a toroidal winding surface that is well separated from the plasma boundary, together with the coefficients of the winding surface. The problem is posed as a balance between approximating a prescribed magnetic configuration and satisfying certain critical engineering requirements. Results are presented for quasi-axisymmetric and quasi-poloidal compact stellarator designs.
ISSN:1536-1055
1943-7641
DOI:10.13182/FST02-A206