Coordinate Reactive Power DGs to Reduce losses with the Algorithm PSO

Due to the expansion of free markets of electrical energy،the use of Distribution Generation (DG) units is increasing to provide power in distribution networks. The impact of dispersed productions on losses and the distribution network at the average pressure voltage is the main subject of this research. DG has many beneficial effects،including minimizing losses and operating costs،increasing the power quality and improving the voltage profile on the network. Using the PSO algorithm is to optimization losses and reactive power network. IEC test network includes 26 buses and 5 DG units،which has been implemented in the MATLAB software environment