Vehicle-to-grid dynamic modeling in a neighborhood of Utrecht municipality

Vehicle-to-grid (V2G) technology is promising for power systems, and its widespread adoption could enhance the provision of advantageous services. The accurate representation of the dynamic operation of such systems aids in addressing technical challenges and, thus, accelerates their implementation. This work focuses on the development of a dynamic model for V2G power transactions, including all of the key interacting components, i.e. the EV battery, the power converter, and the bidirectional charger control unit. Modelica language is utilized. The integration of the developed models into a broader system has been tested through simulations of an area of a Utrecht distribution grid. The results indicate that the examined V2G system could ensure a reliable and stable operation by supplying the requested power. The maximum deviation between requested and supplied power equals 0.23 kW for active and 0.18 kVAr for reactive power, respectively.