Optimal Sizing And Placement Of Distributed Generation In A Radial Distribution System Using Loss Sensitivity Factor And Firefly Algorithm.

Active power loss minimization plays a very vital role in increasing the efficiency of power system. Numerous methods are there for minimization of active power loss in radial distribution. The methodology which has been proposed in this article presents a method of reducing the loss by placing distributed generation. In this paper a two stage method have been proposed for optimal allocation of distributed generation in a radial distribution system. In first stage loss sensitivity factor is used to calculate the location and secondly the firefly algorithm to find the optimal size of DG and for reducing power loss. The proposed method is tested on 33-bus and 69-bus system and results are given below.