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A Proposed Economical Based Approach for Optimal Sizing and Placement of Distributed Generation

Distributed Generation (DG) is a small capacity generating units connected to the distribution network close to the consumers. It can provide a promising future for power generation in electric networks. In recent years, the demand for distributed generation into the electrical networks is rapidly increasing. Connecting DG units into the distribution networks can offer environmental, economic and technical merits. Those merits can be optimized if the DG unit site and size is properly determined. In this paper, a new approach for optimal allocation and sizing of DG based on reducing the simple payback period is presented. The goal of this paper is to provide a complete study of the impact of connecting DG units in the distribution networks on power loss based on economical point of view. Also, a mathematical approach is used for calculating the loading center of the IEEE 33 bus system. Genetic Algorithm is used to solve the optimal DG allocation problem in the distribution system. The Proposed solution methodology has been tested on IEEE 33 standard bus system using MatLab software.