Two Phase Interleaved DC-DC Converter-Based V2G/G2V Bi-directional On-Board EV Charger

This paper presents a control and implementation of a bidirectional on-board charger for V2G applications; An interleaved buck/boost converter is used in this system to reduce the size of the passive components of its filters and to improve the current ripple when the battery is being discharged. The DC-DC converter and the DC-AC inverter make up the core topology of the bidirectional on-board charger, which is connected in a cascading form. The border controller is the controller utilized in this suggested system. For V2G functionality, the converter will be operated in boost mode to step up voltage from a battery pack's low voltage (placed in a vehicle) to an appropriate high voltage at the DC-link capacitor before converting to AC using a single-phase inverter. PLL is used as a grid synchronization method to connect to the electric grid. The validation of this proposed system is validated through simulation and experimental results. Ultimately, the simulation and experimental results in MATLAB/Simulink show that the proposed technique is effective and fast response.