Power Loss minimization and voltage profile improvement using Autonomous Group Particle Swarm Optimization in a distributed power system

Abstract

Growing concerns over environmental impacts, conditions for improvement of the whole distribution network, and rebate programs offered by governments have contributed to an increment in the number of DG units in commercial and domestic electrical power output. It is known that the non-optimal size and non-optimal placement of DG units may lead to high power losses, bad voltage profiles. Therefore, this paper introduces a sensitivity analysis to determine the optimal sitting and sizing of DG units. A new methodology AGPSO is used to reduce the active power losses and also to improve the voltage profile. The effectiveness of the proposed method is demonstrated through IEEE 33 bus standard test systems. The simulation results show that AGPSO can obtainthemaximumpowerloss reductions.