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Modeling and Simulation for Conducted Noise on AC/DC Converter Using SiC-Device
Wataru Kitagawa,Kohei Mitani,Yuki Kawamura,Takaharu Takeshita 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
This paper presents method for deriving equivalent circuit of conducted noise occurred by the switching on isolated AC/DC converter. The simulation of the disturbance voltage is executed by using derived equivalent circuit. By confirming that the simulation results agree with the measurement results, the availability of proposed method is verified. The EMI filters are modeled by RLC circuit. By inserting the model, the simulation of the disturbance voltage is executed. By confirming that the simulation result agrees with the measurement result, the validity of equivalent circuit parameters is verified. In addition, the EMI filter is designed by the simulation result. The experiment with the EMI filter is executed. The noise level with the EMI filter are within the limit value (CISPR11) in all frequency ranges.