Single Phase Multi-Purpose AC/DC Converter for Electric Vehicle External Charging Station

Swathi Karike, Sudha Rani Donepudi

Even though the Vehicle customers are aware of the environmental issues and willing to maintain non pollutant electric vehicles because of non-vailable charging stations and more charging time still electric vehicles are not prominently used. Much important charging stations are non-profitable for the owners because of its more initial and maintenance costs. Hence a charging station with less installation and maintenance cost with fast charging capabilities is much needed. This paper presents a multi-purpose AC to DC converter with a single-phase bridgeless topology and fast charging. The electric vehicle battery can be either charged through slow charging or fast charging with the same converter. With the proposed bridgeless topology, a secondary DC/DC converter is not necessary to obtain the power conversion which reduces the number of components, component losses, installation and maintenance cost of the charging station significantly. The proposed converter can also access the communication lines of the vehicle through charger cable along with the terminals to charge battery. Depend on the accessed data like State of charge and temperature of the battery, charging strategy will be decided by the proposed converter. The operating switching sequence, conversion topologies, duty ratio calculation, safety functionalities and characteristics of the proposed AC to DC converter are analysed and validated with simulation results for 12-kW AC slow Charging mode and 32-kW Fast-Charging mode

Volume 12 | Issue 2

Pages: 1299-1305

DOI: 10.5373/JARDCS/V12I2/S20201166