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张衡,王聪,庄园,侯丽楠.星接三相二极管H桥级联变换器分析与设计[J].电源学报,2018,16(3):54-61
星接三相二极管H桥级联变换器分析与设计
Analysis and Design of “Y” Connection of Three-phase Diode H-bridge Cascaded Converter
投稿时间:2016-12-12  修订日期:2017-02-05
DOI:10.13234/j.issn.2095-2805.2018.3.54
中文关键词:  三相二极管H桥  单位功率因数  升压比
英文关键词:three-phase diode H-bridge  unit power factor  booster ratio
基金项目:国家自然科学基金资助项目(5157070726)
作者单位E-mail
张衡 中国矿业大学(北京)机电与信息工程学院, 北京 100083 870987598@qq.com 
王聪 中国矿业大学(北京)机电与信息工程学院, 北京 100083  
庄园 中国矿业大学(北京)机电与信息工程学院, 北京 100083  
侯丽楠 中国矿业大学(北京)机电与信息工程学院, 北京 100083  
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中文摘要:
      针对实际工业应用中,70%场合中高压变频器只需实现能量单方向传输的特点,分析讨论了一种可用于构成新一代高频隔离中高压变频器整流级的三相星形接法二极管H桥级联变换器。针对单相二极管H桥级联变换器本质上不能实现单位功率因数运行的问题,在分析了星形接法的三相二极管H桥型变换器的工作原理基础上,给出了三相系统可实现单位功率因数运行的理论依据,并重点讨论了三相二极管H桥型变换器运作的两种工作模式。同时采用相量图法给出了系统的最大升压比和系统电感、电容等主要参数的约束条件。最后通过仿真和实验验证了所提理论的正确性和有效性。
英文摘要:
      Considering that a medium/high voltage power converter is only supposed to realize single-directional power flowin about 70% industrial applications, a "Y" connection of three-phase diodeH-bridge cascaded converter is analyzed, which can be used to constitute the rectifier stage in a new generation of high-frequency medium/high voltage power converter. Considering that the single-phase diode H-bridge cascaded converter cannot realize unit power factor operation, and based on the analysis of the working principle of the "Y" connection of three-phase diodeH-bridge converter, the theoretical foundation for the unit power factor operation of the three-phase system is given, focusing on the discussion of two working modes of the converter. Meanwhile, the maximum booster ratio and the constraint conditions of the system's main parameters(e.g., inductor and capacitor) are obtained using a vector diagram method. Fina-lly, the vali-dity and the feasibility of the proposed method was validated by simulation and experimental results.
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