Optimal DG placement and sizing in distribution systems using imperialistic competition algorithm

Distributed Generation (DG) sources are becoming more noticeable in distribution systems, due to the increasing demands for electrical energy. Location and size of DG sources have effectively impact on the power losses in a distribution network. In this paper, imperialistic competition algorithm (ICA) is used for optimal locating and sizing of DG on distribution systems. The cost function is based on minimizing network power losses. Optimal sizing and allocation result in better voltage regulation. The performance analysis is executed on 33 and 69 bus systems with different scenarios to present the efficiency of the proposed method in comparison with other algorithms.