Optimal placement and sizing of DG comparison of different techniques of DG placement

Abstract

The increasing power demand and the deficiency in generating capacities have set the way towards Distributed Generation. Distributed Generation (DG) is assuming widespread popularity owing to its potential to solve numerous issues like the power system de-regulation; meeting the rising power demand; improving voltage profile; reduction in power losses etc. The Optimum Location of DG and optimum DG Sizing are the two critical issues in the integration of DG with the electric grid because the improper placement and improper sizing of DG in power system can not only leads to the enhanced total power losses but can also damage the normal operation of power system. Optimal placement of DG units is a nonlinear optimization problem. This paper proposes a methodology to calculate the optimal location and effective optimal size. The influence of variation in location of DG with respect to the total power losses and voltage in the system is also carried out. The proposed methodology is tested on 33 bus radial distribution network. The obtained results are exhibited in graphical manner. The results achieved from the proposed methodology are paralleled with that of the exhaustive load flows.