Mohammad Hajivand - Young Researchers and Elite Club, Boroujerd Branch, Islamic Azad University, Boroujerd, Iran
Reza Hajivand - Young Researchers and Elite Club, Boroujerd Branch, Islamic Azad University, Boroujerd, Iran
Mehdi Nikzad - Department of Electrical Engineering, Islamshahr Branch, Islamic Azad University, Tehran, Iran
Fereshteh Moghateli - Department of Electrical Engineering Kashan University, Kashan, Iran

In this paper, two novel models have been used in optimal Distributed Generation (DG) placement in distribution system. To do this, the system load have been modeled based on types of costumer and parameter. Minimizing power loss and improving voltage bus have been considered in the proposed objective function. This objective function has been optimized by Group Search Optimization (GSO) algorithm. This algorithmone of particle swarm intelligence techniques which has been suggested to solve complex nonlinear problem. Case study hasbeen performed on IEEE 34-bus radial distribution system

Distributed generation, Group searchoptimization, Power loss minimization, Voltage ProfileImprovement