Analysis of the Radiated Emission from Shielded HV- Cables

Author: Diana Eremyan
Co-authors: Anna Gheonjian, Oussama Sassi, Badri Khvitia, Zviad Kutchadze, Giorgi Kapanadze, Roman Jobava
Annotation:

Improvement of EMC performance of power-train system in electric vehicles requires radiates emission analysis. Radiated emission depends on several factors such as characteristics of switching power electronics components, quality of shielding and impedance of complex grounding paths. Simulation approach for radiated emission analysis, presented in this work, was validated using automotive component test setup with CISPR25 rod antenna method. Side effects of antenna cable positioning that disturbs reproducibility of radiated emission test results were also analyzed and discussed. In order to focus on shielding and grounding path aspects signal generator with a stable wide-band spectrum and built-in power supply was developed. Generator is powerful enough to perform radiated emission tests for fully shielded systems in the 0.15 MHz - 30 MHz frequency range. Presented simulation methodology can be applied at system level for analysis of shielding performance and resonant effects associated with complex grounding path of electric power-train system installed in the vehicle.