新型三相双向DC/DC变换器  

A new Three Phase Bidirectional DC-DC Converter

作　　者：高金萍[1] 黄声华[1] 庞珽[1] 张三艳[1] 

机构地区：[1]华中科技大学,湖北武汉430074

出　　处：《电力电子技术》2008年第10期34-36,共3页Power Electronics

摘　　要：提出了一种适用于中、大功率工况的新型三相有源桥双向DC/DC变换器。该变换器输入端采用了超级电容,具有隔离和大变比的特点,且拓扑结构简单,无需附加元件便可实现软开关和高效率。这些优点使其在中、大功率场合,尤其是在需要高功率密度、低损耗、高可靠性变换器的场合,如辅助电源、分布式发电和燃料电池供电的领域有着很好的应用前景。A new bidirectional DC-DC converter is proposed,which is supposed to be used in medium and high power applications.The new converter interface with low ultracapacitor（UC）, which also has the characteristics of isolation and large ratio.The new topology has the advantage of simple circuit topology, soft-switching implementation without additional device and high efficiency.These advantages make the new converter promising for medium and high power application especially for auxiliary power,distributed power generation and fuel cell-powered occasions where the. high power density,low cost, lightweight and high reliability power converter are required.

关 键 词：变换器 辅助电源 脉宽调制/软开关 

分 类 号：TM46[电气工程—电器]