一种耦合电感双输入升降压变换器

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Abstract A double-input Boost-Buck converter with coupled inductors(DIBBC-CI) is proposed for thermoelectric generator(TEG) power system, where the converter is desired to interface the TEG with low current ripple under wide input voltage range. The DIBBC-CI is built with two Boost converters and a Buck converter cascaded, sharing the inverse coupled filter inductors. Benefiting from the DC magnetic flux counteract, reduced size and power loss of the filter are achieved. The MPPT/ constant voltage/constant current control strategy for free and seamless mode transient and distributed maximum power point tracking(DMPPT) are also proposed. The operational principle, the influence of coupled inductor and its design considerations are analyzed in detail. A 450W prototype is built with experimental results to verify the analysis.

Key words： Double-input step-up/-down coupled inductors distributed maximum power point tracking(DMPPT)

Received: 03 May 2013 Published: 23 March 2015

PACS:

TM464

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	Articles by authors
	Zhang Junjun
	Sun Kai
	Wu Hongfei
	Cao Feng
	Xing Yan

Cite this article:

Zhang Junjun,Sun Kai,Wu Hongfei等. A Double-Input Boost-Buck Converter with Coupled Inductors[J]. Transactions of China Electrotechnical Society, 2015, 30(1): 143-149.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I1/143

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