Reliability Assessment and Cost Analysis of Over Loaded Distribution System with Distributed Generation

This paper presents the reliability assessment and worth analysis of a distribution network with incorporation of Distributed Generation (DG) under extreme load growth. DG technology at optimal site and with appropriate size improve the power quality and reliability. Reliability improvement is the prior option in modern competitive electric utility market to satisfy the customers. Different techniques have been suggested for the optimal allocation of DG unit(s), reliability assessment and worth analysis of distribution system. In this paper a novel approach of CBDGI algorithm is proposed for the DG optimal allocation and size. The simulation is also carried out to assess the reliability before and after the implementation of DG technology. Cost analysis of the distribution system from customer perspective provides effective options for the choice of DG technology selection and economic power system operation. The simulation is carried out in commercially available MATLAB software package. The results obtained without and with DG sources are compared.