Sizing of DGs for minimization of power losses in distribution system using Particle Swarm Optimization

With the increasing penetration of renewable sources, Distributed Energy Resources (DER) are emerging as a crucial components of modern power systems. In a distribution system integrated with Distributed Generation Systems (DG’s), efficient power management is crucial to minimize energy losses and maximize effective utilization of electrical energy. The power losses in distribution system have been on higher side due to low X/R ratio and high AT&C losses. This paper presents the minimization of power losses in a radial distribution system integrated with DG’s. The load flow analysis is carried out using Forward-Backward Sweep (FBS) method. The optimal power levels of DG’s for power loss reduction are obtained by using Particle Swarm Optimization (PSO) algorithm. The proposed method is efficient on a standard IEEE 15 bus radial distribution system.