A Real Time Energy Management for EV Charging Station Integrated with Local Generations and Energy Storage System

Abstract

With the fast development of the electrification of vehicles, Electric Vehicle (EV) charging stations will drastically increase in the coming years. In the meantime, the growing demand of charging power, and the intermittent nature of renewable energy are serious challenges for the charging infrastructures and the local grid. In this paper, a real time energy management for the EV charging station equipped with renewable energy generation (RE) and energy storage systems (ESS) is proposed to achieve the maximum consumption of renewable energy through the direct load control of EV charging. A convex optimization problem of energy scheduling is formulated considering the inhomogeneous EV load and real-time price market of grid electricity. The proposed energy management scheme is then evaluated through simulation case studies and results are drawn and discussed.