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Keywords

Unbalanced distribution system
Capacitor placement
CYMDIST software
Active power loss
Harmonic voltage distortion level

Abstract

This paper proposed an algorithm to find the best location of shunt capacitor and size to reduce the total active power loss and harmonics consideration after assuming electric arc furnace (EAF) in the unbalanced radial distribution network. Demonstrated the results by using practical software (CYMDIST) as a tool, to determine power flow and find the best capacitors size and location that decrease power loss and improve voltage profile. The total harmonic voltage distortion at system does not exceed the maximum allowable total harmonic voltage distortion level (THVD%) compared with IEEE-standard 519-1992. To attain the goal of this algorithm, these algorithms are tested in 25-buses un-balanced radial distribution system and an actual part of Baghdad city distribution network that is content 66-bus for Al_JIHAD_feeder_5 11 kV network are depicted for the implementation of this analysis.
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