Minimization of Losses in 119 Bus Radial Distribution Network using PSO Algorithm

In this research work.the formulation and reorganization of RDN is detailed using loop matrix. The analytical method of determining optimal reorganization consumes more computation time. The computation time increases with number of buses inthe system. So, an optimization algorithm is needed for finding the optimal reorganization of the radial distribution system. The major objective of the optimal reorganization is the minimizing the losses of the network. The optimization algorithms which are used in this article are Genetic Algorithm, Particle Swarm Optimization. In this article, the metaheuristic method is used for optimal reorganization. The organic optimization technique like PSOalgorithm is used for reorganization. The reorganisation issue is explored and examined in the presence and absence of the optimisation approach in a conventional large-scale 119 node network in different circumstances. The acquired findings are then compared.

I. Introduction

The usage of electric power on consumer side is increasing day by day. This is because of rise of population, using low power factor equipment, using heavy loads. These factors combined effects the distribution system which leads to more power dragging from the distribution lines and hence more losses (I2R) and more voltage drop. For this purpose, the distribution system needs reorganization to overcome the above problems. Reorganization is the method of altering the topology of a distribution without disrupting its radial nature. It is one of those most affordable strategies for reducing network losses without the need of compensatory equipment. The process of modifying the topology in order to minimize losses is known as optimal RDS reorganization. The key challenge here is deciding how many tie-line switches to use, which is determined by the number of RDS loops. This section presented the best way to choose the number of main switches and tie line switches. The goal of optimization is to reduce system losses through proper reorganization. As a result, in this chapter, a heuristic algorithm is used to optimize system losses through optimal switch opening and closing. The switching of tie lines and sectionalized switches is determined by the loop matrix (LM).