EMI Modelling and Validation Methods in Electrified Railways

Electrified railways have become increasingly important due to their efficiency, cost-effectiveness, and environmental benefits. Multiple power converters in AC railway systems are known to cause Electromagnetic Interference (EMI) issues, leading to potential system malfunctions. The objective of this paper is to provide a detailed insight into the electromagnetic interference modelling and validation methods in electrified railways. To realize this, a well-defined approach to investigate different modelling schemes is proposed, based on which the simulation and statistical analysis of the EM parasitic components impact on common-mode emissions is analysed. The insights provided in this study can be used to develop an organized understanding of EMI modelling and design effective mitigation strategies to reduce EMI in electrified railways.