Abstract

The deregulated electrical utilities have created a challenge and an opportunity for developing various novel technologies. Integration of DG into an existing utility can result in several benefits. These benefits include line loss reduction, reduced environmental impacts, increased overall energy efficiency, relieved transmission and distribution congestion, voltage support and deferred investments to upgrade existing generation, transmission and distribution systems. The proposed work discusses the primary factors leading to increasing interest in Distributed Generation that can reduce line losses, improve voltage profile by Genetic algorithm (GA) and using sensitivity analysis. The benefits of employing DG are analyzed using voltage profile improvement and line losses reduction. The analysis is tested on a standard IEEE-9 bus system and the results are found to be encouraging. This proposed work has considered the benefit of DG on loss reduction for a simple case of a radial distribution line with one concentrated load at the end and DGs placed at different locations. The influences of varying DG location and varying DG power output are considered in this section. With the introduction of DG, line loss reduction can be expected. This factor is analyzed, quantified and presented in this proposed work for different locations of the DG along the feeder and for different DG power outputs.