Impact of distributed generation on voltage profile using different optimization techniques

This paper demonstrates the already established fact that by using Distributed Generation (DG), voltage profile of a distribution system can be improved. N-R method is used for load flow analysis. A standard IEEE 14-bus power system is used. To reduce losses three optimization techniques i.e. PSO(Particle Swarm Optimization), GSA(Gravitational Search Algorithm) and hybrid PSOGSA is applied to the system so that optimum results can be obtained. Results are compared with the unoptimized system. It is shown that among the three techniques PSOGSA gives the best results.