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A Flexible DC Voltage Balancing Control Based on the Power Flow Management for Star-Connected Cascaded H-Bridge Converter

机译:基于功率流管理的星形串联H桥转换器灵活的直流电压平衡控制

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摘要

This paper presents the flexible dc capacitor voltages balancing control method for star-connected cascaded H-bridge converters. In this paper, the power flows are analyzed by investigating all the converter's control freedoms. Based on the analyses, users can accomplish the dc capacitor voltage balancing with both negative-sequence current and zero-sequence voltage. These two kinds of control options are further integrated together with the defined weighting factor K. The low-voltage ride-through operation of a proposed control method is also discussed in this paper. The control method is verified with a 220-V 1-kVA static synchronous compensators based on the star-connected cascaded H-bridge converters, and the experimental test results show that all the dc voltages are well regulated at the commanded value with different weighting factor K.
机译:本文提出了星形串联级联H桥转换器的灵活的直流电容器电压平衡控制方法。在本文中,通过研究所有转换器的控制自由度来分析功率流。根据分析,用户可以同时使用负序电流和零序电压来实现直流电容器电压平衡。这两种控制选项与定义的加权因子K进一步集成在一起。本文还讨论了所提出的控制方法的低压穿越操作。通过星形串联级联H桥转换器的220V 1-kVA静态同步补偿器验证了该控制方法,并且实验测试结果表明,在不同加权系数的情况下,所有dc电压都能很好地调节到指令值K.

著录项

  • 来源
    《Industry Applications, IEEE Transactions on》 |2016年第6期|4946-4954|共9页
  • 作者单位

    Center for Advanced Power Technologies, Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan;

    Center for Advanced Power Technologies, Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan;

    Center for Advanced Power Technologies, Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan;

    Delta Electronics, Inc., Taipei, Taiwan;

    Delta Electronics, Inc., Taipei, Taiwan;

    Center for Advanced Power Technologies, Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Mathematical model; Capacitors; Power conversion; Automatic voltage control; Pulse width modulation;

    机译:数学模型电容器功率转换自动电压控制脉冲宽度调制;
  • 入库时间 2022-08-18 01:24:25

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