| 一种新型结构的电力电子变压器 |
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| 引用本文： | 王轩,付永生,晋湾湾,王蓓蓓,燕翚.一种新型结构的电力电子变压器[J].电工电能新技术,2017,36(5). |
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| 作者姓名： | 王轩 付永生 晋湾湾 王蓓蓓 燕翚 |
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| 作者单位： | 1. 南瑞集团公司,国网电力科学研究院,江苏 南京 211106;中电普瑞科技有限公司,北京 102200;2. 北京交通大学电气工程学院,北京,100044 |
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| 基金项目： | 国家重点研发计划项目，国家电网公司科技项目 |
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| 摘 要： | 电力电子变压器是一种新型智能电力变压器,在配电网中应用前景广阔。本文提出了一种新的模块化电力电子变压器拓扑结构,将双向隔离DC/DC变换器与模块化多电平变换器子模块连接在一起,直接得到低压直流输出,并利用四桥臂变换器产生低压交流输出,这种结构方式更利于模块化设计,减小装置体积。文中给出了模块化多电平变换器,双向隔离DC/DC变换器以及四桥臂变换器的控制方法,最后通过仿真和实验验证了该拓扑的性能。
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| 关 键 词： | 电力电子变压器 模块化多电平变换器 子模块 四桥臂变换器 |
Novel topology of power electronic transformer |
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| WANG Xuan,FU Yong-sheng,JIN Wan-wan,WANG Bei-bei,YAN Hui.Novel topology of power electronic transformer[J].Advanced Technology of Electrical Engineering and Energy,2017,36(5). |
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| Authors: | WANG Xuan FU Yong-sheng JIN Wan-wan WANG Bei-bei YAN Hui |
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| Abstract: | The power electronic transformer is a new intelligent type of the power transformer,which has a broad developing prospect in the power distribution network.This paper presents a new modular power electronic transformer that integrates the isolated bi-directional DC/DC converter and the modular multilevel converter sub-modules as a whole to output low-voltage DC directly,then to produce low-voltage AC by the four legs inverter.Control strategies of the modular multilevel converter,the isolated bi-directional DC/DC converter and the four legs inverter are also given in this paper.Finally,the performance of the topology is verified by simulation and experiment. |
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| Keywords: | power electronic transformer modular multilevel converter sub-module four legs inverter |
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