文章基本信息

标题：Research on Ground Current of High-Power Series Chopper Circuit
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作者：Peifei Li ; Lei Zhang ; Bin Ouyang 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：3
页码：1-12
DOI：10.1088/1755-1315/252/3/032105
出版社：IOP Publishing
摘要：The ground current equivalent circuit of the series chopper circuit is proposed. The ground current of the following two switching modes is analysed: The IGBT of the upper chopper circuit is turned on when the IGBT of the lower chopper circuit is in the off state; The IGBT of the upper chopper circuit is turned off when the IGBT of the lower chopper circuit is in the off state. The ground current paths of the two switching modes are analyzed, and the mechanism of ground current crosstalk between the upper and lower chopper circuits in the series chopper circuit is obtained. The analysis is verified by simulation and experimentation.