The paper explores the integration of a grid connected off-board charger for Electric vehicle (EV) for reactive power compensation on grid side and synchronously used as a bidirectional electric vehicle battery charger (grid-to-vehicle (G2V)) and power generator (vehicle-to-grid (V2G)). A front-end with a grid facing bidirectional AC-DC cascade H-bridge converter makes up the topology of the charger, and a reversible back-end DC–DC adapter regulates the electricity flowing between the grid and the batteries of an electric car. As a safety precaution, the charger arrangement offers electrical separation between the consumer side and the remainder of the device by regulating battery current and EV current. Also, a controller with an adaptive notch filter is created for generating reference current synchronization and estimating system phase. Phase locked loops (PLL) are unused in the controller design with the recommended control algorithm. As outcome of enhanced steady-state and trainset performance, the controller's computing complexity declines. Additionally, In the MATLAB/Simulink environment, a 12.6 kVA off-board adapter model is designed, additionally; how well the suggested control method performed is assessed during the G2V, V2G, and reactive power compensation operations of the EV adapter.