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Stellarator coil optimization supporting multiple magnetic configurations
DOI:10.1088/1741-4326/aca10d.png)
摘要
En 中文
We present a technique that can be used to design stellarators with a high degree of experimental flexibility. For our purposes, flexibility is defined by the range of values the rotational transform can take on the magnetic axis of the vacuum field while maintaining satisfactory quasisymmetry. We show that accounting for configuration flexibility during the modular coil design improves flexibility beyond that attained by previous methods. Careful placement of planar control coils and the incorporation of an integrability objective enhance the quasisymmetry and nested flux surface volume of each configuration. We show that it is possible to achieve flexibility, quasisymmetry, and nested flux surface volume to reasonable degrees with a relatively simple coil set through an NCSX-like example. This example coil design is optimized to achieve three rotational transform targets and nested flux surface volumes in each magnetic configuration larger than the NCSX design plasma volume. Our work suggests that there is a tradeoff between flexibility, quasisymmetry, and volume of nested flux surfaces.
Keyword:
stellarator
optimization
flexibility
coil design
期刊
IF:
4
论文数:
9.3K
被引数:
2.2W
机构
引用论文
Single-stage gradient-based stellarator coil design: Optimization for near-axis quasi-symmetry基于梯度的单级星形线圈设计: 近轴准对称的优化

