Thévenin Equivalent Circuits for Modeling Common-Mode Behavior in Power Electronic Systems

20 May 2020
Timothy J. Donnelly, Steven D. Pekarek, Drummond R. Fudge, and Nyah Zarate
Video Length / Slide Count:
Pages: 10
Modeling the common-mode behavior of power electronic systems can be a challenge. This research aims to simplify the process by developing a modeling approach based on Thévenin common-mode equivalent circuits. The Thévenin common-mode equivalent circuits prove to be both straightforward to construct and reliable in predicting worst-case common-mode behavior. In this paper, a theoretical understanding of the Thévenin-based modeling approach is first provided. Subsequently, methods to characterize the Thévenin parameters are established. The modeling approach is then validated experimentally on a dc micro-grid.

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