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	适用于温差发电的高效率耦合电感升降压变换器
	张君君 ; 吴红飞 ; 邢岩 ; 孙凯 ; Zhang Junjun ; Wu Hongfei ; Xing Yan ; Sun Kai
	2016-03-30 ; 2016-03-30
关键词	升降压变换器 耦合电感 宽输入电压范围 低压大电流 cable tunnel grounding system grounding resistance TM461
其他题名	A High Efficiency Boost-Buck Converter with Coupled Inductor for Thermoelectric Generator
中文摘要	针对温差电池输出电压变化范围宽、输出电流大且要求电流纹波小的需求,提出了一种高效率耦合电感升降压变换器,该变换器由Boost单元和Buck单元级联组合、并将两单元滤波电感反向耦合构成。变换器输入输出电感反向耦合,使得磁心直流磁通相互抵消,大大减小了滤波器磁心体积和损耗,提高了变换器的效率和功率密度,同时输入、输出电流连续,减小了滤波电容的容量。文中详细分析了所提出的耦合电感升降压变换器的工作原理,深入研究了电感耦合系数对变换器的影响并给出了耦合电感设计准则,采用载波交叠的PWM调制策略以及共用调节器的恒压/恒流控制策略,实现了变换器在恒压和恒流模式之间的无缝平滑切换。搭建了一台500W的实验样机,验证了理论分析的正确性和可行性。; A high efficiency Boost-Buck converter with coupled inductor(BBC-CI) is proposed for thermoelectric-generator(TEG) power system, where the converter is desired to interface the TEG with low current ripple under wide voltage range and high current. The BBC-CI is built with a Boost cell and a Buck cell cascaded, sharing an inverse coupled filter inductor. Benefiting from the DC magnetic flux counteract, reduced size and power loss of the filter inductor core are achieved with the proposed BBC-CI. Because both of the input and output currents are continuous, the interfacing filter capacitors can be reduced greatly. The operational principle, the influence of coupled inductor and its design considerations are analyzed in detail. The PWM strategy and constant voltage/constant current control strategy for free and seamless free mode transition are also given. A 500 W prototype is built with experimental results given to verify the analysis.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/142621]
专题	清华大学
推荐引用方式 GB/T 7714	张君君,吴红飞,邢岩,等. 适用于温差发电的高效率耦合电感升降压变换器[J],2016, 2016.
APA	张君君.,吴红飞.,邢岩.,孙凯.,Zhang Junjun.,...&Sun Kai.(2016).适用于温差发电的高效率耦合电感升降压变换器..
MLA	张君君,et al."适用于温差发电的高效率耦合电感升降压变换器".(2016).

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