Fuzzy Logic Weight based Coordination Scheme for Utilizing Electric Vehicle Charging Stations

The larger battery capacities and the longer waiting and charging time of electric vehicles (EVs) results in low utilization of charging stations (CSs). This paper, proposes fuzzy logic weight based coordination (FLWC) scheme to enhance the utilization of CSs. Each EV has an associated uncertain information including stay time and the current state-of-charge (SoC). The fuzzy logic controller (FLC) analyze these inputs and determines a weight value. The proposed FLWC scheme then allocates CSs to the EVs according to the weight values. The proposed scheme is simulated for 100 EVs and 5 CSs using Matlab. The simulation result shows about 30% improvement in the average utilization of CSs as compared to first-come-first-serve (FCFS) based scheme.