Performance Analysis of a Single Phase Integrated Charger for Electric Vehicles

Due to the persistent need for efficient, small-sized, light weighted and reliable battery chargers for electric vehicles, on-board battery chargers are gaining popularity. The charging power transfer of on-board battery chargers is low. In order to increase the power transfer level, bulky and expensive devices need to be used. An integrated charger will serve the purpose, which combines the merits of both conventional chargers and fast chargers without any supplemental weight, cost and volume. These chargers associate propulsion drive system, which utilizes an electrical machine having high power and its converters to charge the battery during the idle condition of vehicle. This article intends to mathematically analyze the operation of a single phase on-board integrated charger topology and to investigate its performance using MATLAB/Simulink software, under steady state along with variations in supply voltage.