Placement and sizing of parallel reactive power compensation in the presence of distributed generation for line loss reduction

This paper investigates the problem of placement and sizing of large scale utility owned distributed generator (DG units) and parallel reactive power compensation to achieve a high loss reduction in large-scale primary distribution networks. The paper adopts a probabilistic approach to detect the candidate line to install DG (Line with the highest losses). In addition, a method to quantify reactive power compensation requirements for DG installation based on a desired line loss reduction percentage is proposed. IEEE 5-Bus test system is used as a test system in this study. Simulation results have demonstrated the effectiveness of the proposed methodology.