Optimal sizing and siting of DGs for loss reduction using an iterative-analytical method

Abstract

This paper proposes an iterative-analytical method to find the optimal size and site of distributed generation units in a radial distribution system to reduce the maximum possible amount of network loss. The proposed analytical method is an advanced form of the Improved Analytical approach used in other papers. Three types of distributed generation units with different capabilities of active and reactive power generation are considered. To show the efficiency of the iterative analytical approach, different scenarios are tested in 33- and 69-bus standard distribution test systems. A 49-bus real network is also used to prove the efficiency of the proposed method for applying in real-world systems. Comparison between results of the proposed and existing methods demonstrates the advantage of the proposed technique in loss reduction.

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