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A method for optimizing the layout of magnetic sensors in tokamaks based on improved minimal-redundancy-maximal-relevance criterion
2025-06-15
发表期刊MEASUREMENT (IF:5.2[JCR-2023],4.8[5-Year])
ISSN0263-2241
EISSN1873-412X
卷号250
发表状态已发表
DOI10.1016/j.measurement.2025.117172
摘要

The magnetic diagnostic system provides critical input signals for plasma feedback control, which is vital for the safe and stable operation of tokamak devices. Considering system cost and engineering constraints related to installation, optimizing the placement of magnetic sensors to minimize the sensor count is essential. In this study, a sensor layout optimization algorithm based on an improved minimal-redundancy-maximal-relevance criterion is proposed. This improved criterion takes into account both the distance and measurement direction differences between sensors in the redundancy assessment, addressing the issue of dense sensor placement in localized regions, often observed in existing studies. In addition, binary search is employed to identify the minimum number of sensors required, significantly speeding up the optimization process. This algorithm is applied to the design of magnetic sensor layout for a next-generation fusion energy experimental device. The optimized layout consists of only 13 pick-up coils and 16 flux loops. In contrast, a widely used uniform layout requires approximately 50 sensors to achieve the same reconstruction accuracy, demonstrating the effectiveness and practicality of the proposed optimization algorithm.

关键词Sensor layout optimization Weighted mutual information Minimal-redundancy-maximal-relevance criterion Tokamak Binary search
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收录类别SCI ; EI
语种英语
资助项目National MCF Energy R & D Program of China[2022YFE03010002] ; National Natural Science Foundation of China[
WOS研究方向Engineering ; Instruments & Instrumentation
WOS类目Engineering, Multidisciplinary ; Instruments & Instrumentation
WOS记录号WOS:001441907500001
出版者ELSEVIER SCI LTD
EI入藏号20251018000657
EI主题词Tokamak devices
EI分类号1001.2.2 Fusion Reactors ; 1301.2.3 Plasma Physics ; 911 Cost and Value Engineering ; Industrial Economics
原始文献类型Journal article (JA)
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/503578
专题高能量密度物理实验室
高能量密度物理实验室_公共科研平台_SPMHD仿真平台
通讯作者Shen, Biao
作者单位
1.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.ShanghaiTech Univ, Ctr Ultimate Energy, Shanghai 201210, Peoples R China
推荐引用方式
GB/T 7714
Li, Tingyu,Shen, Biao,Chen, Dalong,et al. A method for optimizing the layout of magnetic sensors in tokamaks based on improved minimal-redundancy-maximal-relevance criterion[J]. MEASUREMENT,2025,250.
APA Li, Tingyu.,Shen, Biao.,Chen, Dalong.,Guo, Bihao.,Huang, Yao.,...&Xiao, Bingjia.(2025).A method for optimizing the layout of magnetic sensors in tokamaks based on improved minimal-redundancy-maximal-relevance criterion.MEASUREMENT,250.
MLA Li, Tingyu,et al."A method for optimizing the layout of magnetic sensors in tokamaks based on improved minimal-redundancy-maximal-relevance criterion".MEASUREMENT 250(2025).
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