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平顶脉冲磁场连续微调控系统设计

万昊 张绍哲 刘沁莹 魏文琦 王正磊 韩小涛

万昊, 张绍哲, 刘沁莹, 等. 平顶脉冲磁场连续微调控系统设计[J]. 强激光与粒子束, 2022, 34: 075013. doi: 10.11884/HPLPB202234.210468
引用本文: 万昊, 张绍哲, 刘沁莹, 等. 平顶脉冲磁场连续微调控系统设计[J]. 强激光与粒子束, 2022, 34: 075013. doi: 10.11884/HPLPB202234.210468
Wan Hao, Zhang Shaozhe, Liu Qinying, et al. Design of continuous micro-control system for flat-top pulsed magnetic field[J]. High Power Laser and Particle Beams, 2022, 34: 075013. doi: 10.11884/HPLPB202234.210468
Citation: Wan Hao, Zhang Shaozhe, Liu Qinying, et al. Design of continuous micro-control system for flat-top pulsed magnetic field[J]. High Power Laser and Particle Beams, 2022, 34: 075013. doi: 10.11884/HPLPB202234.210468

平顶脉冲磁场连续微调控系统设计

doi: 10.11884/HPLPB202234.210468
基金项目: 国家自然科学基金项目 (52107152, U21A20458, 51821005); 国家重点研发计划项目 (2021YFA1600301)
详细信息
    作者简介:

    万 昊,m201971591@hust.edu.cn

    通讯作者:

    韩小涛,xthan@mail.hust.edu.cn

  • 中图分类号: TM15

Design of continuous micro-control system for flat-top pulsed magnetic field

  • 摘要: 针对现有电容器放电开环控制产生的平顶脉冲磁场稳定度难以满足核磁共振要求这一问题,提出一种平顶磁场闭环连续微调控方案。在脉冲磁体中放置一个补偿线圈,其由蓄电池供电,采用前馈控制加反馈控制的策略,利用IGBT有源区对补偿线圈的磁场进行线性调控,补偿背景磁场的波动,形成高稳定度平顶磁场。为此,设计了IGBT工作于有源区的驱动电路,搭建了原型机进行实验,结果表明,该方法能够将磁场稳定度提升至50×10−6,验证了方案的可行性。
  • 图  1  平顶脉冲磁场生成原理图

    Figure  1.  Schematic diagram of flat-top pulsed magnetic field generation

    图  2  背景磁场和补偿磁场波形

    Figure  2.  Background magnetic field and compensation magnetic field waveform

    图  3  IGBT输出特性

    Figure  3.  Output characteristic of IGBT

    图  4  有源区内IGBT驱动方案

    Figure  4.  IGBT drive scheme in active region

    图  5  系统控制原理图

    Figure  5.  System control schematic diagram

    图  6  控制系统状态图

    Figure  6.  Statechart diagram of control program

    图  7  实验装置实物图

    Figure  7.  Physical image of experimental device

    图  8  3 T平顶脉冲磁场原型机实验结果

    Figure  8.  3 T flat-top pulsed magnetic field prototype experiment result

    图  9  62 T平顶磁场等效实验结果

    Figure  9.  Result of 62 T flat-top magnetic field equivalent experiment

    表  1  电路参数

    Table  1.   Circuit parameters

    capacitor/
    mF
    magnet
    inductance/mH
    magnet
    resistance/mΩ
    crowbar
    resistance/mΩ
    battery
    voltage/V
    compensate coil
    inductance/μH
    compensate coil
    resistance (298 K)/Ω
    magnet coil
    constant/(kA·T−1)
    compensate coil
    constant/(A·T−1)
    4.833.126819.350096215.152.762196
    下载: 导出CSV
  • [1] Liu Qinying, Liu Shiyu, Luo Yongkang, et al. Pulsed-field nuclear magnetic resonance: status and prospects[J]. Matter and Radiation at Extremes, 2021, 6: 024201. doi: 10.1063/5.0040208
    [2] Wu Tao, Mayaffre H, Krämer S, et al. Magnetic-field-induced charge-stripe order in the high-temperature superconductor YBa2Cu3Oy[J]. Nature, 2011, 477(7363): 191-194. doi: 10.1038/nature10345
    [3] Goto T, Mori M, Chiba K, Suzuki T, et al. High-field Cu/La-NMR study on high-Tc cuprate La2-xBaxCuO4(x = 0.125)[J]. Physica B:Condensed Matter, 2000, 284/288: 657-658. doi: 10.1016/S0921-4526(99)02322-4
    [4] Rourke P M C, Mouzopoulou I, Xu Xiaofeng, et al. Phase-fluctuating superconductivity in overdoped La2−xSrxCuO4[J]. Nature Physics, 2011, 7(6): 455-458. doi: 10.1038/nphys1945
    [5] Sebastian S E, Harrison N, Palm E, et al. A multi-component Fermi surface in the vortex state of an underdoped high-Tc superconductor[J]. Nature, 2008, 454(7201): 200-203. doi: 10.1038/nature07095
    [6] Jiang Fan, Peng Tao, Xiao Houxiu, et al. Design and test of a flat-top magnetic field system driven by capacitor banks[J]. Review of Scientific Instruments, 2014, 85: 045106. doi: 10.1063/1.4870410
    [7] Wang Shuang, Peng Tao, Jiang Fan, et al. Upgrade of the pulsed magnetic field system with flat-top at the WHMFC[J]. IEEE Transactions on Applied Superconductivity, 2020, 30: 4900404.
    [8] Zhang Shaozhe, Wang Zhenglei, Qi Xin, et al. An innovative method for generating high-stability flat-top pulsed magnetic field[C]//Proceedings of 2018 IEEE International Power Modulator and High Voltage Conference (IPMHVC). 2018: 411-415.
    [9] Kohama Y, Kindo K. Generation of flat-top pulsed magnetic fields with feedback control approach[J]. Review of Scientific Instruments, 2015, 86: 104701. doi: 10.1063/1.4931689
    [10] Linder S. Power semiconductors[M]. Lausanne, Switzerland: EPFL Press, 2006.
    [11] Zhang Shaozhe, Wang Zhenglei, Ding Tonghai, et al. Realization of high-stability flat-top pulsed magnetic fields by a bypass circuit of IGBTs in the active region[J]. IEEE Transactions on Power Electronics, 2020, 35(3): 2436-2444. doi: 10.1109/TPEL.2019.2931488
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  • 被引次数: 0
出版历程
  • 收稿日期:  2021-11-06
  • 修回日期:  2021-12-31
  • 录用日期:  2022-01-17
  • 网络出版日期:  2022-07-04
  • 刊出日期:  2022-05-12

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