期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 65, 期 11, 页码 8422-8432出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2018.2808900
关键词
AC-AC converters; reduced switch count (RSC); switched capacitor (SC); three phase; two-quadrant switch (TQS)
资金
- CNPq
- Federal University of Santa Catarina
- Power Electronics Institute
A direct three-phase ac-ac converter based on the switched-capacitor principle and ladder structure is presented in this paper. Additionally, the boundary between partial charge and no charge modes of a switched-capacitor operation is defined. All switched-capacitor direct ac-ac converters described in the literature employ four-quadrant switches; however, the proposed structure works with two-quadrant switches. This characteristic is the main advantage of the proposed structure because it reduces the number of MOSFETs employed in the power circuit, increasing the converter reliability. Furthermore, the proposed converter can operate as a step-up or step-down circuit, i.e., it is a bidirectional topology. The converter offers high performance with regard to efficiency, power density, and power factor, and it can also be used as an electronic autotransformer. The analysis, design methodology, and experimental results obtained with a prototype with 220/110 V and 3.5 kW are described herein. At the rated power, an efficiency of 95.1% for step-up and step-down modes, capacitive power factor of 0.94, and output voltage regulation of 96% were obtained.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据