A Dual-input Boost-Buck Converter with Coupled Inductors for TEG Applications

被引：0
|
作者：
Cao, Feng [1 ]
Zhang, Junjun [1 ]
Wu, Hongfei [1 ]
Hu, Haibing [1 ]
Xing, Yan [1 ]
Ma, Xudong [2 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Jiangsu Key Lab New Energy Generat & Power Conver, Nanjing, Jiangsu, Peoples R China
[2] Southeast Univ, Sch Automat, Nanjing, Jiangsu, Peoples R China
来源：
2013 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2013年
基金：
中国国家自然科学基金;
关键词：
POWER POINT TRACKING;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A dual-input Boost-Buck converter with coupled inductors (DIBBCI) is proposed for thermoelectric generator (TEG) power system, where low current ripple under wide input voltage range is required for the converter. The DIBBCI is constructed by cascading two Boost cells with a Buck cell, and the filter inductors of the Buck cell is composed of two inductors, which are inverse-coupled with two filter inductors of Boost cells. Reduced size and power loss of the filter inductors are achieved benefiting from the DC magnetic flux cancellation. A control strategy for free and seamless modes transfer among constant-voltage, constant-current and distributed maximum power point tracking (MPPT) are also proposed. The operational principles, the influence of the coupled inductors and design considerations are analyzed in detail. A 450W prototype is built with experimental results given to verify the analysis.
引用
收藏
页码：2026 / 2031
页数：6
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