Grid-Solar powered Electric Vehicle Charging System with Bidirectional Charging

Abstract

This proposed work presents three-phase grid integration with solar energy (PV array) with a bidirectional buck-boost converter topology. The PV array output is boosted output given to the bidirectional dc-dc converter. The PV array output is controlled by the MPPT technique to extract the maximum possible output power from the PV array. The grid and PV array are in parallel to give uninterrupted power output to the EV battery. Batteries from electric vehicles (EVs) can be used as energy storage systems in microgrids. By storing the energy when there is an excess (Grid-To-Vehicle, G2V) and supplying energy back to the grid (Vehicle-To-Grid, V2G), they can aid in microgrid energy management. It is necessary to establish appropriate infrastructure and control mechanisms to implement this idea. This study presents the architecture of EV battery charging in a V2G-G2V system on a microgrid. V2G-G2V power transfer is demonstrated through simulation research. According to test results, EV batteries actively regulate power in the microgrid using G2V-V2G operating modes. The controller provides better dynamic performances in terms of dc bus voltage stability, and the charging station design ensures minimal harmonic distortion of grid-injected current.