Optimum placement and sizing of DGs using analytical method for different types of loads

This paper presents a simple analytical method for obtaining optimal sizing of Distributed Generator (DG) units considering reduction of power loss and improvement of voltage profile in distribution system. Sensitivity analysis is used to find out the best location of DG placement. The optimum power penetration by DGs operating at unity power factor and lagging power factor is carried out using analytical method for constant power (CP), constant current (CI), constant impedance (CZ) and composite (CPIZ) loads. Effectiveness of the proposed method is demonstrated through an example.