Using MBSE for Operational Analysis of Power Converter for Electric Traction

Electric vehicles are a more environment friendly technology than internal combustion engine vehicles. However, EVs are still less mature technology compared to ICE vehicles (higher cost, lower power density, lower range rating, and longer charging time, connection to the grid…). In order to commercialize more EVs in the near future to make another step for replacing ICE vehicles, many researches have been conducted. The main three fields of interest are: electric motors, energy storage, and power electronics. EVs are considered as complex systems and need to be addressed with modern methodologies and approaches. This paper presents a first step towards designing a power converter for electric traction system with onboard energy storage system (ESS), using model-based systems engineering (MBSE) and systems modelling language (SysML), by adapting CESAM Systems Architecting Method as framework. Using this approach an operational point of view architecture of the power converter is presented in this paper.