含耦合电感的交错高降压比DC-DC变换器  

Interleaved High Step-down Ratio DC-DC Converter with Coupling Inductor

作　　者：杨林涛 王婵琼 张高红 倪喜军[2] 王霁莹 YANG Lintao;WANG Chanqiong;ZHANG Gaohong;NI Xijun;WANG Jiying(Changzhi Power Supply Company,State Grid Shanxi Electric Power Company,Changzhi Shanxi 046011,China;School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing Jiangsu 211167,China)

机构地区：[1]国网山西省电力公司长治供电公司,山西长治046011 [2]南京工程学院电力工程学院,江苏南京211167

出　　处：《电子器件》2024年第4期987-993,共7页Chinese Journal of Electron Devices

基　　金：山西省电力公司科技项目(5205D018008H);江苏省重点研发计划项目(BE2018130)。

摘　　要：为了解决传统Buck电路降压比小、功率器件电压应力大的问题,提出了一种基于耦合电感的新型交错Buck电路。该变换器通过选择合适的耦合电感匝数比,可以在延长工作占空比的同时实现较低的转换比,采用交错技术和元件重排技术来减小功率器件电压应力。此外,与传统的Buck电路相比,所提变换器具有更高的效率。讨论了所提变换器的工作原理、性能分析,并通过仿真和实验验证了相关结论。To solve the problems of low step-down ratio and high voltage stress of power devices in traditional Buck circuit,a new interleaved Buck circuit based on coupled inductor is proposed.By selecting the appropriate turns ratio of the coupling inductor,the converter can prolong the duty cycle and achieve a low conversion ratio.Interleaving technology and element rearrangement technology are used to reduce the voltage stress of power devices.In addition,compared with the traditional Buck circuit,the proposed converter has higher efficiency.The working principle of the proposed converter is discussed and the performance is verified by simulation and experiment.

关 键 词：交错技术 耦合电感 高降压比 低应力 

分 类 号：TM46[电气工程—电器]