电气工程学报 ›› 2016, Vol. 11 ›› Issue (12): 1-7.doi: 10.11985/2016.12.001

• •    下一篇

一种基于准Z源的DC-DC变换器

房绪鹏,许伟   

  1. 山东科技大学电气与自动化工程学院青岛 266590
  • 收稿日期:2016-04-18 出版日期:2016-11-25 发布日期:2019-11-22
  • 作者简介:Xupeng Fang (房绪鹏), male, born in 1971,Associate Professor .Major research interests include Z-source converter and its applications, and utility applica-tions of power electronics such as active filters and FACTs devices, renewable resources generation.|Wei Xu (许伟), female, born in 1991,Master.Major research interests include applications of power electronics in power system and electric drive.

A DC-DC Power Converter Topology Based on Quasi-Z-Source Concept

Fang Xupeng,Xu Wei   

  1. College of Electrical Engineering and Automation, Shandong University of Science and TechnologyQingdao 266590 China
  • Received:2016-04-18 Online:2016-11-25 Published:2019-11-22

摘要:

本文提出了一种基于准Z源思想的DC-DC变换器。为克服传统双向DC-DC变换器的不足,其中双向功率开关由两个面对面连接的IGBT模块或Power MOSFET构成,通过DSP产生PWM波形控制双向功率开关导通占空比,实现在单一拓扑结构下双向功率流传输的目的。该电路拓扑结构包括现有的基于准Z源思想的变换器的所有优点,如双向的升/降压输出,高效率、低成本等。本文详细介绍和分析了该电路拓扑结构的工作原理,并进行了仿真和实验验证。仿真和实验结果证实了该电路拓扑的合理性和优越性。

关键词: DC-DC变换器, 准Z源, 双向功率流

Abstract:

In this paper a DC-DC power converter topology is presented based on quasi-Z-source concept. In order to overcome the limitations and problems of the conventional DC-DC power converters, two IGBT modules or power MOSFETs are face-to-face connected to constitute bidirectional power switches, which can transmit bidirectional power flow in a single topology by PWM control. The proposed circuit topology contains all the benefits of the existing quasi-Z-source-based power converters, such as buck/boost voltage, increase efficiency and reduce cost, etc, and its operating principle and voltage gain are introduced and analyzed in detail. The simulation and the experiments based on the prototype are performed. Besides, the simulation and experimental results verify the rationality and superiority of the circuit topology and they are shown in good agreement with the theoretical analysis.

Key words: DC-DC power converter, quasi-Z-source, bidirectional power flow

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