Design of EV Charging Station with Integrated Renewable Energy Sources

The increase of electric vehicles (EVs) is leading to an increase in electric vehicle charging stations, due to this spread the load on the existing power system is being increased and power quality disturbances are increasing. Using renewable energy is the best possibility to reduce stress and increase eco-friendliness. With the increasing electric mobility V2G/G2V is growing rapidly, V2G system helps in load leveling, voltage regulation, and improvement of grid stability. This paper introduces the detailed modeling of a multiport converter for EV charging by integrating renewable sources, to handle the sudden load disturbances the converter also incorporates a supercapacitor, which helps in overcoming frequency fluctuations, this helps in increasing battery life and reducing the energy storage system size. The detailed control system with all sources for improving stabilization such as power balancing, and voltage profile. The key aspects of the converter are less number of switches, a simple control structure, and balancing power between sources. Using renewable sources reduces the load on the power grid and the charging demands of EVs are fulfilled. To improve the efficiency of the converter, SiC devices are used, and the efficiency and power loss are compared by the simulation to the conventional Si devices. For different modes of operations, the simulation results are presented.