Comprehensive evaluation of electric vehicle charger performance

Abstract

In order to guarantee the safe and reliable operation of the electric vehicle charger, the status quo of the performance evaluation of the electric vehicle charger is reported and a comprehensive evaluation method of the performance status of the charger is proposed. Firstly, based on the analysis of the current charging standards of electric vehicles, the evaluation index system of the health status of charging equipment is constructed. Secondly, the Analytic Hierarchy Process (AHP) and the entropy method are combined to determine the comprehensive weight of the indicators. Then the fuzzy comprehensive evaluation is used to evaluate the health states of charging equipment. Finally, the above indicator system and evaluation method are used to evaluate a charger. The results show the validity of the proposed index system and the practicability of the evaluation method, which can provide a basis for the development of operation and maintenance plans for charging equipment.