开关耦合电感准Z源逆变器.pdfVIP

开关耦合电感准Z源逆变器 周玉斐 黄文新 赵健伍 赵萍 （江苏省新能源发电与电能变换重点实验室 （南京航空航天大学 ） 江苏省 南京市 210016 ） 摘要 本文提出了一种高升压能力的逆变器，即开关耦合电感准 Z 源逆变器拓扑。它是在准 Z 源逆变器的基础上提出的。与开关耦合电感 Z 源逆变器相比，在相同的输入输出条件下，开关 耦合电感准 Z 源逆变器具有的优点包括：输入电流连续，逆变桥和输入电压源共地，无源器件体 积重量减小，以及电容电压应力降低等。本文分析了这种新拓扑的稳态工作原理，升压特性，控 制策略和器件的电压应力等，最后用实验结果验证了 SCI-qZSI 的实际性能。 关键词：准 Z 源逆变器 高增益 耦合电感 直通零矢量 中图分类号：TM341 Switched Coupled Inductor Quasi-Z-Source Inverter ZHOU Yufei H UANG Wenxin ZHAO Jianwu ZHAO Ping （Jiangsu Key Laboratory of New Energy Generation and Power Conversion (Nanjing University of Aeronautics and Astronautics) Nanjing 210016 Jiangsu ） Abstract This paper presents a new family of high boost gain single stage inverters, namely switched coupled inductor quasi-Z-source inverter (SCL-qZSI). The basic topology is known in the literature as quasi-Z-source inverters (qZSI). In comparison to the switched coupled inductor Z-source inverter (SCL-ZSI), SCL-qZSI shows some merits on the same input and output condition s, including continuous input current, a common ground with the dc source, reduced passive component count, and reduced voltage stress on capacitors. This paper presents the operating principles, analysis, and compares them to th ese of the SCL-ZSI. To verify the performance of the proposed converter, a laboratory prototype was constructed, and the experimental results under the simple boost control method are shown to verify the correctness and effectiveness. Keywords ：quasi-Z-source inverter, high boost ability, coupled inductor, shoot-through zero s