Analysis of Loss Profile and Thermal Distribution of Heat Sink of IGBT-Based Asynchronous and Synchronous Buck Converters for EV Charging System

Electric vehicles (EVs) have rekindled interest in their efficiency and environmental friendliness. Many power electronics components are required to charge the EV battery. In power electronic devices, power loss and thermal management have a significant impact on the system performance. In addition, it is expected to operate these in an optimum manner, so it is important to understand the power loss and the thermal decomposition in the devices. In this paper, a detailed analysis of power loss calculation of IGBT for electric vehicle charging has been studied with thermal stability analysis. This paper also analyses the performance between 1 kW Asynchronous Buck Converter (ASBC) and Synchronous Buck Converter (SBC) for Electric vehicle's battery charging, and all the data has been taken from our previous hardware experimental work. The designed heatsink allows us to maintain the thermal distribution in IGBT at 36.2 degrees and 42.5 degrees for ASBC and SBC, respectively for 5A load current, which has been proved via simulation.