This article presents a mixed-integer linear programming optimization problem to minimize the energy cost of a charging station powered by photovoltaics via V2G service. The system adopts a distributed design and consists of a power cabinet, a battery cabinet and a charging terminal, which facilitates flexible deployment of charging power and energy storage capacity according to actual application scenarios. Satisfying the increased power demand of electric vehicles (EVs) charged by clean energy sources will become an important aspect. Finally, an intraday real-time optimization algorithm is designed, and the similarities and differences of the economic index and power fluctuation index are comprehensively analysed by using an actual charging station as a case study. Cooperative efforts to build a new type of power system.
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Can photovoltaic-energy storage-integrated charging stations improve green and low-carbon energy supply?
The results provide a reference for policymakers and charging facility operators. In this study, an evaluation framework for retrofitting traditional electric vehicle charging stations (EVCSs) into photovoltaic-energy storage-integrated charging stations (PV-ES-I CSs) to improve green and low-carbon energy supply systems is proposed.
What is a photovoltaic-energy storage-integrated charging station (PV-es-I CS)?
As shown in Fig. 1, a photovoltaic-energy storage-integrated charging station (PV-ES-I CS) is a novel component of renewable energy charging infrastructure that combines distributed PV, battery energy storage systems, and EV charging systems.
Additionally, an energy management and control system has been introduced in for an EV charging station with V2G integration. This charging station featured a PV system, wind turbine, and fuel cell with grid connection.
What is integrated photovoltaic storage and charging system?
The integrated photovoltaic, storage and charging system adopts a hybrid bus architecture. Photovoltaics, energy storage and charging are connected by a DC bus, the storage and charging efficiency are greatly improved compared with the traditional AC bus.