Power Flow Modeling of Wireless Power Transfer for EVs Charging and Discharging in V2G Applications

Despite, the large scale introduction of Electric Vehicles (EVs) presents large challenges for the power grid, they can provide services to the power grid which is known as vehicle-to-grid (V2G) applications. A flexible, automatic, and bidirectional charging and discharging system, is essential for the best interaction between EVs and grid. Thus, this paper presents a steady-state harmonic mathematical model for the bidirectional inductive wireless power transfer system for charging and discharging EVs in V2G applications. The proposed model provides an accurate estimation for the system variables under different conditions. A 1.5kW bidirectional wireless system is simulated in MatLab Simulink, and its results are compared with the proposed theoretical model for validation purposes.