Fuzzy based active and reactive power support to the distribution network using electric vehicles

Due to increasing peak power demand and decreasing quality of power delivery to consumers, the penetration of Electric Vehicles (EVs) are highly acceptable for grid support. If the EVs are exchange active and reactive power to grid during parking hours, then the peak power demand has reduced and quality of power delivery has improved. The EVs are discharged at a place to be called as a Grid Supporting Station (GSS). The GSS have multiple Discharging Units (DUs) which transfers active and reactive power from EVs' batteries to grid. In this paper, a fuzzy based control method is described for EVs which regulate the active and reactive power for grid support. The active and reactive power flow from EVs to grid based on the node voltage and amount of energy available in the GSS. Each DU is designed for a maximum power handling capacity of 80VA. The performance of the GSS is analyzed with five set of EVs which is connected through point of Common Coupling (PCC) of distribution node. Simulation studies show that the GSS could effectively exchange the power for grid support during the peak hours.