Simulation and hardware development of AC-DC power converter for Off- board charger of EV

An electric vehicle operates on an electric motor, instead of an IC engine that generates power by burning a mix of fuel and gases. This technology addresses the issue of rising pollution, global warming and depleting natural resources. These advantages emphasis the importance of the innovation of the present technology. This paper aims at developing a compact design of an AC/DC converter module, for an off board charger for EVs. The device choice is based on various performance factors such as power factor, efficiency, and losses. A literature survey of various topologies of AC/DC converters - conventional, interleaved and totem pole - is performed. The electrical performance of the converters is taken into consideration. The power electronic components are selected so as to achieve high power factor (PF), high efficiency, and low input current THD (total harmonic distortion). The performance parameters are computed and verified theoretically and using simulation results. The losses for the selected components are calculated and evaluated to ascertain if it is feasible to design an off-board charger for low-power charging application. The size of components used decide the final size of the off-board charger. A comparative study based on the volume requirement of different topologies is also made. Based on the tradeoff between considerations discussed above the converter best suitable for this project is selected. Finally, a hardware prototype is developed to validate the design.Copyright (c) 2022 Elsevier Ltd. All rights reserved.Selection and peer-review under responsibility of the scientific committee of the Second International Conference on Engineering Materials, Metallurgy and Manufacturing.