The inclusion of distributed generation (DG) to the distributed network may have an impact on the network losses of the power system. Inappropriate selection of location and size of DG may increase system losses. This paper introduced an effective methodology for optimal distributed generation (DG) allocation to decrease real power loss in radial distribution system. An analytical method has been proposed to get optimal places and corresponding rating of multiple DG units. A new mathematical formulation, Loss Sensitivity Constant (LSC), has been derived in the proposed analytical technique to solve the optimal DG allocation problem. The value of DG penetration is taken up to 30% of total load of this system. The proposed technique has been tested on standard IEEE 33-bus test system. To check the effectiveness of proposed method, the system is tested atthree different type of loading conditions i.e. light load (50% of the rated load), nominal load (rated load condition) and heavy load (160% of the rated load).The results of the proposed
analytical technique are compared with the results of the latest optimization techniques in order to show its effectiveness.
Radial Distribution System (RDS), Distributed Generation(DG), Real Power Loss(RPL)