Application of Gravitational Search Algorithm and Fuzzy For Loss Reduction of Networked System Using Distributed Generation

The insertion of distributed generator (DG) into distribution systems for performance improvement has been an obvious application. But the choice of DG has been extended to the networked systems as well in the recent years. The penetration level of DG is accelerating due to the liberalization of electricity markets and Technological advances in small generators and energy storage devices. In this paper the DG technology is used for loss reduction in the networked system. Functioning of DG is effective not merely on DG itself, but through proper location and size of the same. In this paper optimal magnitude of power from DG is computed by using a new algorithm (i.e. Gravitational Search Algorithm (GSA)), upon finding optimal locations through fuzzy inference system. The proposed combination of GSA and Fuzzy concept is tested on an IEEE 5 bus system, IEEE 14 bus system and 62-bus practical Indian system.