期刊
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
卷 8, 期 1, 页码 298-310出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JESTPE.2019.2939644
关键词
10-kV SiC MOSFETs; electromagnetic interference (EMI); electromagnetic compatibility (EMC); parasitic capacitance; silicon carbide; switching losses
资金
- Innovation Fund, Denmark
- Department of Energy Technology, Aalborg University
Increased switching speeds of wide bandgap (WBG) semiconductors result in a significant magnitude of the displacement currents through power module parasitic capacitances that are inherent in packaging design. This is of increasing concern, particularly in case of newly emerging medium-voltage (MV) SiC MOSFETs since the magnitude of the displacement currents can be several order higher due to the fast switching transients and increased voltage magnitudes of the SiC MOSFETs compared to their Si counter parts. The severity intensifies when the magnitude of the displacement current becomes comparable to a significant fraction of SiC MOSFETs rated current, leading to the worsened impact on the converter electromagnetic interference (EMI) as well as performance in terms of switching losses. The key objective of this article is to provide a detail insight into the impact of the module parasitic capacitances on the SiC MOSFET switching dynamics and losses. To realize this, a well-defined approach to dissect the switching energy dissipation is proposed, based on which the detailed analysis and quantitative measurements of the module parasitic capacitance impact on terms of added switching energy losses, and common-mode currents are investigated using a custom-packaged 10-kV half-bridge SiC MOSFET power modules. The theoretical analysis and experimental results obtained from dynamic as well as static characterization reveal that the impact of the module parasitic capacitance on the switching energy dissipation is twofold and substantially adverse such that it cannot be overlooked considering its intended application in the high-power MV power electronic converters.
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