DETERMINATION OF OPTIMOM SIZE AND LOCATION OF DISTRIBUTED GENERATORS FOR LOSS REDUCTION USING GA

Abstract

In this paper optimum size and location of distributed generators (DGs) are determined for loss reduction in distribution systems. For this purpose, genetic algorithm (GA) optimization approach is proposed. The significant innovation of this research paper is using new coding in genetic algorithm (GA) which includes both active and reactive powers of DGs to achieve more loss reduction. Furthermore, two types of DG consisting of DGs with capability of supplying both real power and reactive power and DGs with only capability of supplying real power but consuming of reactive power are considered and comparative studies are conducted in the different cases to investigate the impacts of optimal DGs placement and its size determination on loss reduction. The effectiveness of the proposed method is examined in the 33 bus and 69 bus distribution systems. The results show that determination of optimum size and location of DGs has a considerable effect on loss reduction.