基于 LC 吸收电路的耦合电感高升压增益变换器

提出一种带无源无损 LC 吸收电路的耦合电感高增益升压变换器,采用电容、电感和二极管组成的无源吸收电路网络,回收了变换器中漏感能量,同时抑制了开关管两端的电压尖峰,从而减小了开关管的电压应力。与传统有源箝位或无源吸收电路相比,具有 LC 吸收电路的耦合电感Boost 变换器的输入电流连续,简化了输入滤波器的设计。同时,该变换器仅有一个开关管,且通过调节耦合电感变比可实现高升压增益特性,在新能源领域具有广泛的应用前景。文中详细分析了该变换器的工作原理及工作特性,最后通过搭建一台100 W、45 V/200 V 的实验样机,验证了理论分析的正确性。...

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Bibliographic Details
Published in电机与控制学报 Vol. 19; no. 3; pp. 69 - 75
Main Author 陈章勇 许建平 吴建雪
Format Journal Article
LanguageChinese
Published 西南交通大学 磁浮技术与磁浮列车教育部重点实验室,四川 成都 610031 2015
西南交通大学 电气工程学院,四川 成都 610031
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ISSN1007-449X
DOI10.15938/j.emc.2015.03.011

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Summary:提出一种带无源无损 LC 吸收电路的耦合电感高增益升压变换器,采用电容、电感和二极管组成的无源吸收电路网络,回收了变换器中漏感能量,同时抑制了开关管两端的电压尖峰,从而减小了开关管的电压应力。与传统有源箝位或无源吸收电路相比,具有 LC 吸收电路的耦合电感Boost 变换器的输入电流连续,简化了输入滤波器的设计。同时,该变换器仅有一个开关管,且通过调节耦合电感变比可实现高升压增益特性,在新能源领域具有广泛的应用前景。文中详细分析了该变换器的工作原理及工作特性,最后通过搭建一台100 W、45 V/200 V 的实验样机,验证了理论分析的正确性。
Bibliography:23-1408/TM
coupled-inductor Boost converter;LC snubber circuit;input current ripple;high voltage gain;renewable resources
CHEN Zhang-yong, XU Jian-ping, WU Jian-xue ( School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China; Ministry of Education Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle, Southwest Jiaotong University, Chengdu 610031, China)
A Coupled-Inductor-Boost high voltage gain converter with a nondissipative LC snubber was presented . By utilizing a snubber circuit composed of capacitor, inductor and diode, leakage inductance energy was recycled and voltage spike stress of the power switch was suppressed. Compared with active clamp circuit or lossless snubber circuit, the proposed converter maintains the characteristics of continu-ous input current and therefore makes it easy to design electromagnetic interference (EMI) filter. Mean-while, the converter with single power switch and high voltage gain, has appropriate candidate for photo-voltaic, fuel
ISSN:1007-449X
DOI:10.15938/j.emc.2015.03.011