Coordinated voltage control in LV grid with solar PVS: development, verification and field trial

The increasing share of distributed renewable energy resources may lead voltage violation problems in low-voltage (LV) network. However, a number of smart grid solutions are developed, only very limited number of solutions are being implemented in real field. Therefore, in this study, on-load tap changer based smart solution is verified using a real rural LV network in Slovenia. The field trial revealed that redundancy and cyber security are the main concerns for distribution system operator, which are addressed in this field trial