Comparative Thermal Analysis of Cooling Methods for Dual Inverter Applications in Electric Vehicles

Electric vehicles (EVs) have gained global attention as a solution to climate change and pollution caused by internal combustion engine vehicles (ICEVs). However, the limited driving range and long charging time pose challenges for EVs. Higher power density and efficiency in power electronic systems can increase the driving range of EVs. Advancements in power electronics for EVs have led to higher power density integration and smaller components. Therefore, effective thermal management solutions are crucial to maintaining device temperatures within acceptable limits for higher power densities. This research aims to investigate and compare the thermal cooling efficiency and pressure drop of different liquid cooling methods (serial and parallel cooling) for dual inverter applications based on SiC MOSFETs.Extensive evaluations have been conducted using Ansys Fluent software for Computational Fluid Dynamics (CFD) simulations. The study emphasizes the benefits of parallel cooling with reduced pressure drop, offering enhanced heat dissipation, higher power density, and optimized thermal management.