Smart Grid Integration: PID-Controlled Offboard Electric Vehicle Charger for V2G and G2V Interactions

Offboard electric vehicle (EV) chargers are becoming more prevalent worldwide as a result of the growth in EV usage. The most complex and challenging domain in the Smart Grid is vehicle-to-grid (V2G) and grid-to-vehicle (G2V) interactions. To accurately manage the supply quality of the Smart Grid, it is necessary to control the power delivered to and received from EVs. This paper presents a method of controlling an offboard Electric Vehicle charger, which facilitates both Opportunities from network to car and car to the network. The development approach depend on the PID controller method to simplify the design and achieve desired values with minimal error. The controller's performance is assessed in two modes: discharging and charging, with reactive power compensation. There are two simultaneous phases in the battery charger: firstly, AC to DC, and secondly, DC to DC. An LCL filter is sized to compensate for reactive power. A MATLAB Simulink simulation, informed by a study, is showcased for a 15 KVA EV charger.