Abstract:
The urge for sustainable transportation is increasing the demand for electric vehicles progressively.
The main concern related to the usage of electric vehicles is that it may drastically increase the
load demand on the grid. The erratic demand and the use of grid connected converters cause
various power quality problems in the grid. A sustainable solution to override the various issue is
renewable energy, especially solar photo voltaic based EV charging stations. This project
introduces a novel photovoltaic integrated off-board electric vehicle battery charger. It is a system
capable of operating in both sunshine and non-sunshine hours. It can be realised with the help of
a SEPIC converter, a High Gain Bidirectional Buck-Boost converter and a Backup Battery bank.
Also, to extract maximum power from the available station area and thereby improve the PV
conversion efficiency, it uses integrated MPPT. A realistic model of the proposed system is
designed and simulated in MATLAB SIMULINK in this project. And various proposed modes of
operations for different irradiance conditions are verified for the system. The results show that the
proposed charging system is capable of powering up EVs irrespective of the availability of
sunshine. Finally, a comparative performance analysis of the proposed EV battery charging system
using P & O and INC-MPPT techniques is verified
