Topology design and analysis of high field magnetic resonance superconducting magnet power supply

doi:10.16568/j.0254-6086.202101013

Nuclear Fusion and Plasma Physics ›› 2021, Vol. 41 ›› Issue (1): 72-77.DOI: 10.16568/j.0254-6086.202101013

• Nuclear Fusion Engineering and Technology • Previous Articles Next Articles

Topology design and analysis of high field magnetic resonance superconducting magnet power supply

DAI Tian-li1, 2, ZHOU Chao1, QIN Jing-gang1, LI Jian-gang1, GAO Ge1 DAI Tian-li1, 2, ZHOU Chao1, QIN Jing-gang1, LI Jian-gang1, GAO Ge1

(1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031;
2. University of Science and Technology of China, Hefei 230036)

Received:2019-07-15 Revised:2020-06-18 Online:2021-03-15 Published:2022-02-28

高磁场磁共振超导磁体电源的拓扑设计与分析

代天立 1, 2，周超*1，秦经刚 1，李建刚 1，高格 1

(1. 中国科学院等离子体物理研究所，合肥 230031；2. 中国科学技术大学，合肥 230026)

作者简介:代天立(1992−)，男，安徽人，博士研究生，主要从事电力电子技术、超导电工方面的研究。
基金资助:
中国科学院“未来高场磁体技术发展研究”战略先导专项 B 类专项(Y15YZ53291)

Abstract

Abstract: The power supply of high field magnetic resonance superconducting magnet in a large aperture
human body imaging system works in two aspects, i.e. normal excitation and demagnetization. The
demagnetization energy is returned to the power grid through the "inversion" of the power supply. According to
the design requirements, two kinds of energy feedback topologies are analyzed and compared. The proposed
topology is analyzed and simulated with the Matlab/Simulink analysis.

Key words: High field magnetic resonance, Superconducting magnet, PWM rectifier, H-bridge circuit, LCR
filter

摘要： 针对高磁场磁共振大孔径人体成像系统中超导磁体电源在励磁时向磁体充能、退磁时把能量“逆变”
回电网的设计要求，比较了两种能量回馈型的拓扑结构。通过 Matlab 仿真分析，验证了拟采用的拓扑结构的合
理性。

关键词: 高磁场磁共振；超导磁体；脉冲宽度调制整流；H 桥电路；LCR 滤波器

CLC Number:

TM46

DAI Tian-li, , ZHOU Chao, QIN Jing-gang, LI Jian-gang, GAO Ge . Topology design and analysis of high field magnetic resonance superconducting magnet power supply[J]. Nuclear Fusion and Plasma Physics, 2021, 41(1): 72-77.

代天立, 周超, 秦经刚, 李建刚, 高格 . 高磁场磁共振超导磁体电源的拓扑设计与分析[J]. 核聚变与等离子体物理, 2021, 41(1): 72-77.

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Topology design and analysis of high field magnetic resonance superconducting magnet power supply

高磁场磁共振超导磁体电源的拓扑设计与分析

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