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新型全固态模块化多电平特种高压电源优化设计

李玉山 钱伟刚 滕甲训 孙孝峰

李玉山, 钱伟刚, 滕甲训, 等. 新型全固态模块化多电平特种高压电源优化设计[J]. 强激光与粒子束, 2024, 36: 025007. doi: 10.11884/HPLPB202436.230322
引用本文: 李玉山, 钱伟刚, 滕甲训, 等. 新型全固态模块化多电平特种高压电源优化设计[J]. 强激光与粒子束, 2024, 36: 025007. doi: 10.11884/HPLPB202436.230322
Li Yushan, Qian Weigang, Teng Jiaxun, et al. Optimization desigh of new all-solid-state modular multilevel special high-voltage power supply[J]. High Power Laser and Particle Beams, 2024, 36: 025007. doi: 10.11884/HPLPB202436.230322
Citation: Li Yushan, Qian Weigang, Teng Jiaxun, et al. Optimization desigh of new all-solid-state modular multilevel special high-voltage power supply[J]. High Power Laser and Particle Beams, 2024, 36: 025007. doi: 10.11884/HPLPB202436.230322

新型全固态模块化多电平特种高压电源优化设计

doi: 10.11884/HPLPB202436.230322
基金项目: 河北省自然科学基金重点项目(E2021203162);河北省重点研发计划项目(19214405D)
详细信息
    作者简介:

    李玉山,liyushan@qvc.edu.cn

    通讯作者:

    滕甲训,tengjiaxun@qq.com

    孙孝峰,sxf@ysu.edu.cn

  • 中图分类号: TK513.5

Optimization desigh of new all-solid-state modular multilevel special high-voltage power supply

  • 摘要: 模块化多电平换流器(MMC)已成为新型全固态特种高压电源的有效解决方案,对其进行轻量化设计以节约设备空间成本成为当前研究热点。MMC中限制功率密度提升的首要因素为子模块大尺寸电容,为降低MMC对子模块容值的需求,提高系统功率密度,提出一种改进型MMC(I-MMC)拓扑。应用隔离型开关电容变换器,实现上下桥臂一对子模块高频链互联。研究中相单元内上、下桥臂子模块对并联的高频链两侧采用同步控制,使子模块电容之间呈现开关电容特性,实现波动功率在电容之间的自由传递,进而消除相位相反的基频与3倍频波动分量。结合MMC运行调制比和功率因数分析基频与3倍频波动分量消除后子模块电容取值,完成模块化设计。所提方案可将子模块电容减小至常规MMC的1/4。仿真与实验结果验证了所提拓扑方案的正确性与有效性。
  • 图  1  常规MMC及I-MMC拓扑图

    Figure  1.  Topology diagram of conventional MMC and I-MMC

    图  2  子模块电容能量流动过程波形

    Figure  2.  Energy flow path between sub-module capacitors

    图  3  子模块电容能量流动过程

    Figure  3.  Sub-module capacitor energy flow path

    图  4  I-MMC等效模型图

    Figure  4.  Diagram of I-MMC equivalent models

    图  5  容值比与调制比和功率因数角关系

    Figure  5.  Relationship between capacitance ratio, modulationratio and power factor angle

    图  6  组合式模块单元

    Figure  6.  Combined modular unit

    图  7  容值668 μF上下桥臂子模块电压

    Figure  7.  Voltage waveforms of upper and lower bridge arm submodules

    图  8  模型2容值177 μF上下桥臂子模块电压

    Figure  8.  Voltage waveforms of upper and lower bridge arm sub-modules in model 2

    图  9  仿真波形

    Figure  9.  Simulation waveforms

    图  10  实验波形

    Figure  10.  Experimental waveforms

    表  1  仿真参数

    Table  1.   Simulation parameters

    model Udc/kV Uac/kV P/MW f/Hz fc/kHz number of
    bridge arm submodules
    Larm/mH C/μF transformer
    conversion ratio
    L/μH fH/kHz
    MMC 12 12 1.2 50 2 4 10 668
    I-MMC 4.9 4.9 1.2 50 2 4 10 668/177 1∶1 9 20
    下载: 导出CSV

    表  2  实验参数

    Table  2.   Experimental parameters

    Udc/VUac/VP/kWf/Hzfc/kHzLarm/mHC/μFtransformer conversion ratioL/μHfH/kHz
    2402401.250261101:14.320
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-09-18
  • 修回日期:  2023-10-18
  • 录用日期:  2023-10-18
  • 网络出版日期:  2023-10-26
  • 刊出日期:  2024-01-12

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