摘要
电力电子变压器(PET)是一种结合电力电子变换器和高频变压器而构成的电能传输设备,在坚强智能电网的建设中有着巨大的应用价值。本文对国内外研究的配电系统电力电子变压器热点拓扑结构做了分类,并针对各种实现方案进行了分析和对比。指出电力电子变压器在减小自身体积和重量、电能质量调节等方面具有传统变压器不可比拟的优势。尤其是具有直流环节的三级型结构,其良好的控制性能使电力电子变压器可实现更多的功能,也为分布式发电系统更好地融入智能电网提供了通道,是电力电子变压器未来的发展方向。最后就电力电子变压器的实际应用提出了需要重点研究的几个关键问题。
Power electronic transformer（ PET） is a kind of power transmission equipment combined by power electronic converters and high-frequency transformer,which has great application value in the building of Strong Smart Grid. Hot PET topologies applied to distribution system are classified and their implementations are analyzed and compared in this paper. It has been indicated that PET has great advantages in reducing its own size and weight,and power quality regulation,compared with traditional transformer. Especially for the three-stage topologies with DC link,their good controllability can make power electronic transformer achieve more functionality and also provide a channel for the integration of distributed power generation systems,which is the future development direction of PET. Finally,several key issues in practical application of PET are proposed.
出处
《电工电能新技术》
CSCD
北大核心
2015年第3期41-48,共8页
Advanced Technology of Electrical Engineering and Energy
基金
科技部国际合作项目(2010DFR70600)
关键词
配电系统
电力电子变压器
拓扑结构
三级型
distribution system
power electronic transformer
topology
three-stage
