Impact of the Electric Vehicle Charging on the Power Systems

The increasing market penetration of electric vehicles (EV) has received substantial attention in recent years due to its impact on power system operation and reduction in carbon emission. Voltage imbalances created by single-phase charging EVs and plug-in hybrid electric cars (PHEV) constitute a severe power quality concern in low voltage grids. In this paper, a sequence-decoupled Newton Raphson three-phase power flow considering EV integrations has been proposed. This novel combination of the EV with the decoupled-Newton Raphson sequenced component has been used to check the effect of voltage stability of a three-phase unbalanced power system. A simple five-bus IEEE standard system is considered for testing and comparing a reference case to a future scenario considering high penetration to the distribution system.