Optimal Infusion and Grading of Combined DGs and Capacitor Banks for Line Loss Minimization and Enhancement of Voltages in Radial Circuit System

Abstract

Enhancement of voltage profile of the radial distribution network's (RDN) is seen as a debatable subject because it is one of the factors that influence the system's performance. The power distribution system suffers significant losses as a result of the lower voltage and higher currents. As a result, experts are paying more attention to reduce power losses in the RDN. It is feasible to enhance voltage level of RDN by realizingcombined performance of Distribution Generation (DGs) and capacitor placements. This loss minimization technique tends to lower power flow through lines, which invariably improves system reliability and allows same lines to be used for growing load demand. The practice of optimum positioning and sizing the DGs and capacitors may improve system stability while also minimizes system losses. This article presents a simple and distinct way for determining best point and magnitude of integrated DGs and capacitor units in RDS. The fundamental goal of this project is to restore voltage profile and reduce losses by using Moth Flame Optimization (MFO) algorithm, a well-known and recently created meta-heuristic technique, is used. The algorithm is based on moths' natural behaviour when exposed to light, and it includes two key elements: moths and flames. The proposed methodology has been tested on both IEEE 12 and IEEE 33 node test systems to demonstrate its practicality. The simulated results are compared to ways described in the literature to illustrate the difference between prescribed method and others in terms of enhancing the voltage profile and reducing losses.