Intraday Rolling Optimization Strategy of PV-Energy Storage-Integrated Charging Station Serving Multiple Electrical Bus Lines

The purpose of this paper is to explore the intraday rolling optimization strategy for PV-energy storage charging station serving several electrical bus lines. Aiming at minimizing the operating cost of charging station, an intraday operating model is established considering randomness of photovoltaic power output in multi-scenarios. The model also considers the influence of several bus lines and their interactions, making the simulation close to the real-life situation, while the influence of environmental temperature on electrical charging demands is also taken into account. The simulation result of two examples effectively shows the effect of photovoltaic and energy storage and proves the feasibility of intraday rolling optimization strategy. Cost and benefit are also analyzed on electric bus charging station equipped with photovoltaic and energy storage.