Smart Charging of Multiple EVs in Smart Grid Radial Low Voltage Distribution Networks

The harsh emissions constraints have pushed the Automotive industry to introduce Electric Vehicles (EV). Since the beginning of this millennia the numbers of EVs have increased from thousands to millions nowadays. The impact of EVs charging, over the Electrical networks has been studied in many publications, and everybody reached the same conclusion: if EV’s charging is not managed, the energy industry will suffer; increased investments, new energy production facilities will lead to increased energy prices. The concept of managing the EV’s charging process is connected to Smart Grid concept, and many publications are stating that a single centralized entity should regulate the chargingprocess. As such, in this paper a similar centralized EV charging control algorithm in low voltage distribution networks (LVDN) is proposed. The proposed algorithm, is regulating the EV charging power, while considering the LVDN network constraints. Specifically, the voltage constraints are taken into account, because the voltage levels within the network are a power supply quality indicator.