• Sunil Ramesh Pawar
• Prof. Chandra O. Reddy
• Prof. J. S. Kayasth

Now days, Electric Vehicle (EV) integration to the distribution grid is gradually increasing and is hitting with much power quality issues. This paper presents a smart compatible integration of EV with the distribution grid assuring a quality power. The presented model of the charging system is considered for ultra-fast DC charging of many electric vehicles. Components suitable for working at high voltages and currents are required and to be characterized by considerable dimensions. The location of these charging systems is outside the vehicle that is off-board. These systems are advantageous in the sense that the charging time is reduced and vehicle space is reduced which gives a margin to use more powerful batteries. The designed charging station is having a AC-DC converter supplied by the mains and to a DC bus. Each charging column with a DC-DC converter is powering the electric vehicle. Power flow in both directions is needed to include Vehicle to Grid (V2G) operation; hence the converters are required to be bi-directional. A LCL filter is connected between the AC-DC converter and the station to control the voltage and current waveforms distortion. A detailed description of the design and simulation of a DC ultra-fast recharging station for Electric Vehicles (EVs) is carried out. The system consists of a single AC/DC grid connected inverter, a DC-Bus and two DC/DC converters to recharge the batteries of the EVs. Multiple electric vehicles can be connected for fast DC charging in the proposed model. The charging station consists of a single inverter and a DC bus connected to grid. There is a decentralized charging process of each electric vehicle and a dedicated control system dealing with AC grid to the DC bus power transfer. The smooth transition to V2G mode is possible. Design description, modeling and results are explained in steps to support implementation in MATLAB/Simulink.

Electric Vehicles (EVs), Fast DC battery charging, State of Charge (SOC), Battery, Vehicle-to-Grid (V2G), MATLAB/Simulink.

"Electric Vehicles - Design and Simulation of a Fast DC Recharging Station", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.292-297, June 2019, Available :http://www.jetir.org/papers/JETIR1906V43.pdf

"Electric Vehicles - Design and Simulation of a Fast DC Recharging Station", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp292-297, June 2019, Available at : http://www.jetir.org/papers/JETIR1906V43.pdf