Particle Swarm Optimizations Based DG Allocation in Local PV Distribution Networks for Voltage Profile Improvement

It's a important challenge in power system that to integrate Distribution Generation (DG) in local radial distribution system. Optimal allocation of DGs in the network system leads to the minimization of the overall distribution power loss as well as the improvement of the overall voltage profile. Moreover the size of DG unit that alters reactive power flow and its path in a local radial distribution network can also have a substantial influence on voltage stability. This paper proposes an optimization methodology for identifying proper location and size of DG units in local distribution system. The optimization is implemented with the help of a particle swarm optimization technique. Results show the importance of selecting the location and size of DG units for enhancing the voltage stability of local radial distribution system.