The growing complexity of modern power distribution systems, coupled with increasing electricity demand, necessitates innovative solutions to minimize losses and enhance system efficiency. This paper focuses on the strategic placement and sizing of Distributed Generation (DG) units within a distribution network to achieve these objectives. Utilizing a hybrid analytical approach combining the Power Loss Index (PLI) and the Radial Correction Factor (RCF), the study optimizes DG placement and capacity within an IEEE-15 bus radial distribution system. Results demonstrate significant improvements, with a 47.677% reduction in real power losses and a notable enhancement of the voltage profile. The optimal configuration involved installing five DGs at selected buses, yielding the highest efficiency gains compared to traditional optimization methods like the Artificial Bee Colony (ABC) and PLI-GA algorithms. The proposed methodology not only reduced operational losses but also improved system reliability and power quality, demonstrating its superiority and practical viability. Strategic DG integration and optimal capacitor placement together offer a robust framework for enhancing the performance of modern distribution networks.
