Numerical Modelling of the EMC Performance of Braided Cables for an Electric Vehicle

This paper presents a numerical approach to modelling the EMC performance of cables used in electric vehicles. The shielding effectiveness of the cables is predicted using the transfer impedance, which can be calculated through analytical and/or numerical approaches. The advantage of the numerical method lies in its capacity to handle complex wiring configurations and diverse materials, offering more flexibility than analytical methods. Several configurations have been investigated and modeled, including one designed for electric vehicle applications. Results obtained by numerical modelling are compared with analytical models and validated against measurements acquired from a triaxial test bench. A good agreement was observed between the numerical model and the experimental results.