Abstract
High penetration of power electronics due to the concentration of switching frequency in the range of 9–150 kHz may create new challenging issues. Currently, regarding the recent version standard (IEC 61000-6-3), there is a lack of enough insight and fundamental studies despite reported electromagnetic interference (EMI) noise problems in this frequency range. Hence, this article proposes a time-frequency analytical modeling method for characterizing differential mode (DM) noise in a single-phase power factor correction (PFC) converter in this new frequency range. Provided comparative simulation analysis shows the proposed method's ability to estimate DM noise with a 9–150 kHz frequency range at high accuracy utilizing the double Fourier analysis method. Moreover, the obtained experimental results on a 1-kW single-phase boost PFC converter validate the proposed EMI modeling approach's effectiveness, demonstrating an error of less than 1.8 dB for the considered experimental case studies.
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