Optimal Radial Topology with Phase Balancing in LV Distribution System Considering Energy Loss Reduction: A Case Study in Cambodia

This paper aims to find the optimal topology from three different case studies based on energy loss reduction. In the first stage, the shortest path (SP) algorithm is used to find the shortest distance from each load to all poles with the given location. Then, several parameters of electrical appliances used in households have been collected from the survey to generate load profiles of each household by a bottom up algorithm. There are 3 cases for the comparison based on energy loss in this research work. Case 1 is based on a Repeated ABC phase sequence (RPS ABC) which is assumed as the based case. Cases 2 and 3 are designed by phase balancing technique based on peak load and load profile, respectively. In this work, Mixed Integer Linear Programming (MILP) method has been chosen to define phase balancing in the unbalanced three-phase system. Based on the results, case 3 provides a good option for the optimal radial topology with the phase balancing technique based on energy loss.