Smart Grid Congestion Caused by Plug-in Electric Vehicle Charging

Plug-in electric vehicles (PEVs) will place a sizeable load on future residential distribution systems. As the popularity of PEVs increases, the network congestion of uncoordinated PEV charging will likely also increase. Until smart charging becomes available, the impact of uncoordinated charging on residential distribution systems must be considered. This paper studies the effects of PEV charger activities of randomly populated, randomly arriving PEVs within several low voltage residential networks. The impacts on network voltages, feeder congestion overloads and distribution transformer loading are investigated.