双输入Buck变换器的交错双沿调制方法

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Abstract In the renewable power system with two or more sources, the application of multiple-input converter instead of several single-input converters can simplify the circuit and reduce the cost. This paper derives the voltage conversion of the double-input Buck converter, and concludes that it is dependent on the duty cycles of the two switches, and has nothing to do with the phase difference between the drive signals for the two switches. This paper discusses the relationship between the inductor current ripple and phase difference of the two drive signals, and based on which, an interleaved dual-edge modulation scheme is employed in order to minimize the inductor current ripple. As a result, the filter inductor can be reduced significantly, leading to a fast dynamic response and a high power density. A 400W prototype is fabricated in the lab to verify the theoretical analysis and the effectiveness of the proposed interleaved dual-edge modulation scheme.

Key words： Multiple-input Buck converter interleaved control dual-edge modulation

Received: 24 March 2008 Published: 13 February 2014

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TM46

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	Articles by authors
	Li Yan
	Ruan Xinbo
	Yang Dongsheng
	Liu Fuxin

Cite this article:

Li Yan,Ruan Xinbo,Yang Dongsheng等. Interleaved Dual-Edge Modulation Scheme for Double-Input Buck Converter[J]. Transactions of China Electrotechnical Society, 2009, 24(4): 139-146.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I4/139

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作者简介: 李艳女, 1977年生, 博士研究生, 讲师, 主要研究方向为中小功率高频软开关直直变换器和新能源供电系统。阮新波男, 1970年生, 教授, 博士生导师, 主要研究方向为功率电子变换技术、航空航天供电系统、新能源供电系统和电力电子系统集成。