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In-Circuit Differential-Mode Impedance Extraction at the AC Input of a Motor Drive System (2110.00208v1)
Published 1 Oct 2021 in eess.SY and cs.SY
Abstract: The in-circuit differential-mode (DM) impedance at the AC input of a motor drive system (MDS) serves as a key parameter to evaluate and estimate the DM electromagnetic interference (EMI) noise caused by the switching of power semiconductor devices in the MDS. This paper discusses a single-probe setup (SPS) with frequency-domain measurement to extract the in-circuit DM impedance of an MDS under its different operating modes. The advantages of the SPS are its non-contact measurement and simple structure.