YANG Deyong, ZHU Bingquan. Electromagnetic emission mechanism analysis and filtering research for traction system in urban rail transit vehicle[J]. Electric drive for locomotives,2024(3): 130-137.
YANG Deyong, ZHU Bingquan. Electromagnetic emission mechanism analysis and filtering research for traction system in urban rail transit vehicle[J]. Electric drive for locomotives,2024(3): 130-137.DOI:10.13890/j.issn.1000-128X.2024.01.128.
Electromagnetic emission mechanism analysis and filtering research for traction system in urban rail transit vehicle
The traction system of urban rail transit vehicles is recognized as one of the main electromagnetic interference sources significantly impacting the electromagnetic compatibility of trains
primarily attributed to the implementation of pulse width modulation control
which involves high voltage
high current
and pulse interference characteristics. This study analyzed the main electromagnetic emission loops of the traction inverter system
taking into account both the vehicle system design and the flow path of electromagnetic interference current. By establishing a simplified calculation model for high-frequency interference currents
this study explored the method for designing filtering parameters aimed at reducing electromagnetic emissions from the traction system. Moreover
a comparative simulation was conducted to evaluate the suppression effects of various filtering schemes. Finally
the effectiveness of the proposed optimization method was verified by external radiation emission tests using trains.
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