Anis Malekzadeh - Department of Electrical, Faculty of Electrical Engineering, Islamic Gonabad Azad University, Gonabad, Iran
Assef Zare - Department of Electrical, Faculty of Electrical Engineering, Islamic Gonabad Azad University, Gonabad, Iran

By increasing penetration of distributed generation units and dominance units in the power system, placement and sizing units is necessary and inevitable. So the lack of attention to determining the optimum capacity and location of these units will reduce their technical and economic feasibility. The various objective functions in different studies are performed to seek and determine the location and size of these units. To solve the foregoing optimization problem, one of the newest and most powerful optimization algorithms namely the bacterial foraging algorithm have been used

placement, sizing, voltage profile and bacterial foraging algorithm