一种改进型高增益Π源DC-DC变换器  

An Improved High-GainΠ-Source DC-DC Converter

作　　者：房绪鹏 臧颖 阚兴宸 王旭 FANG Xupeng;ZANG Ying;KAN Xingchen;WANG Xu(College of Electrical Engineering and Automation,Shandong University of Science and Technology,Qingdao Shandong 266590,China)

机构地区：[1]山东科技大学电气与自动化工程学院,山东青岛266590

出　　处：《电子器件》2022年第1期91-96,共6页Chinese Journal of Electron Devices

基　　金：山东省自然科学基金项目(ZR2016EEP10);山东省研究生教育质量提升计划资助项目(SDYKC17032)。

摘　　要：针对传统Π源DC-DC变换器输入电流不连续、升压能力不强、电路效率低等问题,提出了一种改进型Π源DC-DC变换器拓扑,在保留传统Π源DC-DC变换器所有优点的同时,新的拓扑利用由电容、电感和二极管构成的无源吸收回路来吸收漏感能量,从而抑制输出电压尖峰。该网络不仅具有更高的电压增益,而且连续的输入电流特性使其能够应用于现代能源系统。对该变换器的电路结构和工作原理进行分析,并用仿真和实验进行了验证,仿真和实验结果证明了该变换器的有效性及其作为高升压DC-DC转换器应用的可行性。Aiming at the disadvantages of traditionalΠ-source DC-DC converters,such as discontinuous input current,poor boost ability,and low efficiency and so on,an improvedΠ-source converter topology is proposed,which can inherit all the advantages of traditional source converters.A passive absorbing circuit composed of capacitor,inductor and diode is applied to the new topology to absorb leakage inductance energy and suppress output voltage spikes.The converter has a higher voltage gain,furthermore,the characteristics of continuous input current make it suitable for modern energy systems.The circuit structure and the working principle of the converter are analyzed,and verified by simulation and experiment.The simulation and experimental results verify the effectiveness and the feasibility of its application as a high boost converter.

关 键 词：Π源网络 耦合电感 DC-DC变换器 无源吸收回路 高增益 

分 类 号：TN603[电子电信—电路与系统]