Enhancement of radial distribution network with distributed generation and system reconfiguration

Abstract

This paper investigates the performance enhancement of Radial Distribution Network (RDN) integrated with Distributed Generation (DG), using optimal placement and sizing of DG and applying the required network reconfiguration. Binary Particle Swarm Optimization (BPSO) has been used to decide the best changing Sectionalizing Switches' (S.S) and Tie Switches' (T.S) status between on and off. The best location and size for DG are optimized using typical Particle Swarm Optimization (PSO). The objective function of the optimization problem is minimizing the power losses. The study has been applied to a real network with 59-bus Cairo distribution system, Egypt. Different scenarios of network operation and DG placement have been obtained. The results demonstrate that the reconfiguration of RDN firstly then optimize the placement and size of the DG penetration could reduce the network losses by 53.7%.