李子欣;王平;楚遵方;朱海滨;李耀华;

• 1:中国科学院电力电子与电气驱动重点实验室(中国科学院电工研究所)

摘要(Abstract)：

分析了电力电子变压器(power electronic transformer,PET)的国内外研究现状,以及面向中高压电网的已有PET拓扑的特点。在此基础上,基于模块化多电平变流器(modular multilevel converter,MMC),提出了面向中高压智能配电网PET的一种新型拓扑。与传统的PET电路拓扑相比,新型拓扑的优势在于其可以减少电力电子开关器件的数量;更重要的是,可以显著减少高频变压器的数量,具有更好的体积及重量优势。同时,分析了该拓扑PET的工作机制及不同电能转换环节的控制策略设计方法。10 kV/380 V配电网用PET样机上的仿真及试验结果表明了所提拓扑及其控制策略的可行性。

关键词(KeyWords)： 智能电网;配电网;电力电子变压器;模块化多电平变流器

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51207151);; 中国科学院知识创新工程重要方向项目(Y180131C31)的资助~~

作者(Author): 李子欣;王平;楚遵方;朱海滨;李耀华;

Email:

DOI: 10.13335/j.1000-3673.pst.2013.09.004

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