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An Automated Charger for Large-Scale Adoption of Electric Vehicles

The penetration of electric vehicles (EVs) is expected to increase in the future. With more EVs on the road, more loads will be added to power systems, which will impact the system voltage and loading. This paper studies the impact of the EVs on the distribution system and provides an automated controller that satisfies the customer requirements and mitigates the negative impacts of the charging of EVs on the system. The controller takes into consideration the system voltage, the customer requirements, and the state of charge of the battery. The controller is tested using a large-scale distribution system in MATLAB Simulink. It is also validated using a small-scale four-bus experimental system. To show the interaction between local distributed generations (DGs) with the EV charging, the controller is tested in the presence of DG units. The results showed the superior performance of the controller in charging the EVs smoothly and mitigating the negative impacts of the grid.