DC_DC变换器并联均流技术_刘晓东.pdf

网络出版时间：2013-01-25 17:13 网络出版地址：/kcms/detail/34.1254.N1713.012.html Vol. 30 No. 1 安徽工业大学学报( 自然科学版) 第30 卷 第1期 January 2013 J. of Anhui University of Technology(Natural Science) 2013 年 1月 文章编号：1671-7872(2013)01-0054-06 DC/DC 变换器并联均流技术 刘晓东，姜婷婷，方炜 (安徽工业大学 电气信息学院，安徽马鞍山243032) 摘要：开关电源多模块并联系统发挥了分布式电源供电大容量、高效率和低成本等优势，同时提高了整个电源系统的可靠性， 实现平均分配各模块负载电流的并联均流技术是开关电源模块并联的关键技术之一。常用DC/DC 并联均流技术有无源法与 有源法，有源法依据输出电压调节方式和均流母线产生方式不同而有多种组合控制方法。对目前电源并联均流技术原理、主 要均流方法进行分析，综述无主模块均流控制和无均流线控制等新型均流策略，指出并联均流技术朝着智能化、数字化方向发 展的趋势。 关键词：多模块并联；DC/DC ；均流；控制策略 中图分类号:TM46 文献标志码:A doi:10.3969/j.issn. 1671-7872.2013.01.012 Current Sharing Technologies of Paralleled DC/DC Converters LIU Xiaodong, JIANG Tingting, FANG Wei (School of Electrical Engineering and Information,Anhui University of Technology, Ma’anshan 243032, China) Abstract ：Paralleled DC/DC converters can achieve the expansion of capacity limberly, enhance the reliability of the whole power system and realize large capacity, high efficiency and low cost of the distribution resource. The current-sharing is one of the key technologies in Paralleled DC/DC converters to distribute the load current equally. Common current-sharing technologies are divided into passive and active methods. With different kinds of output voltage regulation and different means of current sharing line production, several control methods are proposed in the active methods. The principle of current sharing technologies and main current-sharing methods are systematically analyzed, some new current-sharing methods which include masterless modular current-sharing (MMCS) technique and no current share line control are summarized. The technology of current