Design method of capacitance value of three-phase cascaded H-bridge power electronic transformer

被引：0
|
作者：
Wang Z. [1 ,2 ,3 ]
Li Y. [1 ,2 ,3 ]
Li Z. [1 ,2 ,3 ]
Zhao C. [1 ,2 ,3 ]
Gao F. [1 ,2 ,3 ]
Zhang H. [1 ,2 ,3 ]
Wang P. [1 ,2 ,3 ]
Zhang C. [4 ]
机构：
[1] Key Laboratory of Power Electronics and Electric, Chinese Academy of Sciences, Beijing
[2] Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing
[3] College of Electronic Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing
[4] State Grid Jiangsu Electric Power Company Research Institute, Nanjing
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2020年 / 40卷 / 01期
基金：
国家重点研发计划;
关键词：
Cascaded H-bridge; Instantaneous power fluctuation characteristics; Method of capacitor design; Power electronic transformers; Time domain analytical model;
D O I：
10.16081/j.epae.202001011
中图分类号：
学科分类号：
摘要：
According to the three-phase cascaded H-bridge PET(Power Electronic Transformer), the instantaneous power fluctuation characteristics of its input side are analyzed, and the time domain analytical models of its DC side capacitor voltage and the primary and secondary side current of the intermediate high-frequency transformer are built. Based on the models, a design method of PET capacitor value is proposed. Based on the MATLAB/Simulink, three-phase cascaded H-bridge PET simulation model is built and verified in the power module test platform. Both simulative results and experimental results show that the model can accurately describe the fluctuation characteristic of the capacitor voltage and the high-frequency cur-rent of PET, and provide a research foundation for the design of the circuit parameters and control system. © 2020, Electric Power Automation Equipment Press. All right reserved.
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页码：219 / 224
页数：5
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