Controlling EV charging and PV generation in a low voltage grid

Increasing amounts of local power generation and loads are challenging the management of low voltage (LV) grids. This paper proposes a low voltage grid monitoring and control solution enabling a grid operator to: 1) assess available capacity in an LV grid for planning purposes, 2) provide grid constrained electrical vehicle (EV) charging control, and 3) optimize the injection of photovoltaic (PV) energy in the grid. The ability to increase LV grid utilization and to minimize critical grid events are shown in Park & Ride and Shopping Mall EV charging scenarios. Relying on the prediction of domestic demand and PV generation, the ability of the EV charging strategy to handle prediction errors is analyzed.