Energy Efficiency Evaluation of EV Charging Network Based on Fuzzy Comprehensive Assessment

People began to focus on the energy efficiency of EV charging facilities with the rapid development of EV. The energy efficiency evaluation of EV charging network requires a comprehensive reflection of the entire and all aspects of the network. This paper aims to propose a method and a model of energy efficiency evaluation. Firstly EV efficiency factors were analyzed, which were conducted hierarchical classification, and then to calculate factor weights using the G1 group method. Finally energy efficiency evaluation model was established by the analysis of factor set, evaluation set, weighting factor based on fuzzy comprehensive evaluation principle. Simulation results show that the result of energy efficiency evaluation by this model not only contained the retail network energy efficiency, but also reflected the various aspects of the network. The model reflected energy efficiency of the whole network meticulously and roundly, which has a strong practical value.