“…Some papers have focused on voltage and reactive power optimization through improving VVO techniques [7][8][9]12,13,[15][16][17][18]22,29,30]. The predominant feature of these classes of studies is their focus on making the algorithms or implementation techniques more efficient [7][8][9][10][11]16,23]. In contrast, the voltage regulation issues and techniques [11,12,1 4,18,19,23,24,26-28,37] have been the main goal of most CVR studies.…”