The optimal locating distributed generation resources to reduce losses and improve voltage distribution networks

Variation and deviation of voltage in networks, are one of underlying factors and designating of power quality.Network disturbances risen from specific and nonlinear loads cause deviation in voltages. This results to harmonic,and phase to be out of equilibrium. From system function s perspective, outspread generators units can replace fordevelopments in distribution capacity and transfer. Therefor for examining power quality improvement, decreasing innumbers and voltage dips should be taken into account. The supplied voltage by DG, during occurring unstable shocksin networks, can have undesirable effects on produced power quality. Therefore when connecting several protectionplans for distributing generation, in both, voltage level is required. Maybe coordination between the protectionequipment eliminated, that this phenomenon can lead to reduced reliability and quality of power. The voltage flickerand islanding phenomenon, in turn, are effective in reducing power quality. The purpose of this paper is the optimalplacement of distributed generation sources to reduce losses and improve voltage amplitude in distribution networks.To do this, pseudo-evolutionary PSO algorithm (PSO) is used. The findings of this research showed, distributedgenerator sources can be located at the desired location in a way that, cause to reduce losses, voltage stability andpower quality.

کلیدواژه ها:

voltage changes ، voltage deviations ، distributed generation ، power quality