Advanced voltage regulation method at the power distribution systems interconnected with dispersed storage and generation systems

Abstract

DSGs (dispersed storage and generation systems) in power distribution systems impact on the conventional voltage regulation method. Therefore, there is a possibility that the customers' voltage will violate the permissible limits. In this paper, we propose the MLDC (multiple line drop compensation) voltage regulation method considering the unbalanced load diversity among feeders, the operations of DSGs, and the hysterical tap changing mechanism of ULTC (under load tap changer). The result from a case study shows that the proposed MLDC method can be practically applied to the voltage regulation method at the power distribution system interconnected with DSGs and severely unbalanced load diversity among feeders.