Department of Electrical Power Engineering and Mechatronics Tallinn University of Technology Ehitajate Tee 5 19086 Tallinn Estonia;
Department of Electrical Power Engineering and Mechatronics Tallinn University of Technology Ehitajate Tee 5 19086 Tallinn Estonia;
Photovoltaic(PV)system; On-load tap changer(OLTC); Voltage regulation; Coordinated control; Droop control;