Optimal distributed generation placement using hybrid technique

Incorporation of distributed generation (DG) units energized by renewable energy resources (especially wind and solar) at distribution level have generated a greater interest in the recent years. Power loss reduction and voltage profile improvement are the main concern for distributed generator integration. Most of the methods for optimal generation placement using analytical and particle swarm optimization (PSO), computes the active power injection such that the objective function is obtained. In this paper, a new hybrid technique has been proposed for placing distributed generation with optimal power injections on power distribution systems for loss reduction. The active power injection from distributed generator is obtained using particle swarm optimization and reactive power injection is obtained by summing up the reactive loads and losses of all the branches fed by the distributed generator. This hybrid technique has been tested on IEEE 33 bus system and results are presented.