Modeling electric vehicle charging station expansion with an integration of renewable energy and Vehicle-to-Grid sources

This chapter presents a detailed study of renewable energy integrated charging infrastructure for electric vehicles (EVs) and discusses its various aspects such as siting requirements, standards of charging stations, integration of renewable energy sources for powering up charging stations and interfacing devices between charging facilities and smart grid. A smart charging station for EVs is explained along with its essential components and different charging methodologies are explained. It has been recognized that the amalgamation of electric vehicles in the transportation sector will trigger power issues due to the mobility of vehicles beyond the stretch of home area network. In this regard an information and communication technology (ICT) based architecture may support EVs management with an aim to enhance the electric vehicle charging and energy storage capabilities with the relevant considerations. An ICT based solution is capable of monitoring the state of charge (SOC) of EV batteries, health and accessible amount of energy along with the mobility of EVs.

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Novel grid-connected solar/wind powered electric vehicle charging station with vehicle-to-grid technology

Energy ◽

10.1016/j.energy.2017.04.161 ◽

2017 ◽

Vol 132 ◽

pp. 1-11 ◽

Cited By ~ 38

Author(s):

Hassan Fathabadi

Keyword(s):

Solar Wind ◽

Electric Vehicle ◽

Grid Technology ◽

Vehicle To Grid ◽

Charging Station ◽

Electric Vehicle Charging ◽

Vehicle Charging

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Renewable Energy Tracking and Optimization in a Hybrid Electric Vehicle Charging Station

Applied Sciences ◽

10.3390/app11010245 ◽

2020 ◽

Vol 11 (1) ◽

pp. 245

Author(s):

Andrija Petrusic ◽

Aleksandar Janjic

Keyword(s):

Renewable Energy ◽

Electric Vehicle ◽

Multicriteria Optimization ◽

Hybrid Electric Vehicle ◽

Small Scale ◽

Charging Station ◽

Electric Vehicle Charging ◽

Battery Capacity ◽

Hybrid Electric ◽

Vehicle Charging

The increasing electric vehicle fleet requires an upgrade and expansion of the available charging infrastructure. The uncontrolled charging cycles greatly affect the electric grid, and for this reason, renewable energy sources and battery storage are getting incorporated into a hybrid charging station solution. Adding a renewable source and a battery to the charging station can help to “buffer” the power required from the grid, thus avoiding peaks and related grid constraints. To date, the origin of the energy coming from the battery has not been traced. In this paper, a solution of the hybrid electric vehicle charging station coupled with the small-scale photovoltaic system and battery energy storage is proposed to eliminate the adverse effects of uncontrolled electric vehicle charging, with the exact calculation of renewable energy share coming from energy stored in the battery. The methodology for the multicriteria optimization of the charging/discharging schedule of a battery and electric vehicle charging level is based on multi-attribute utility theory. The optimization criteria include the minimization of charging costs, maximization of renewable energy (from both the solar plant and the battery), and the minimization of battery degradation. The problem is solved using a genetic algorithm optimization procedure adapted to the multicriteria optimization function. The methodology is tested on an illustrative example, and it is proven that the decision-maker’s preferences greatly affects the choice of the optimal strategy and the optimal battery capacity.

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