Power quality improvement using fuzzy logic controller based unified power flow controller

<p>The Power quality of the electrical system is an important issue for industrial, commercial, and housing uses. An increasing request high power number distorting loads had led to increase consideration by customers utilities. The development use flexible alternating current transmission (FACTs) controllers in systems many applications these controllers. A unified flow controller (UPFC) one FACTs elements which used control both active reactive line. This paper tried improve using a fuzzy logic (FLC) based UPFC, where it flow, decreas total harmonic distortion (THD), correct factor, regulate line voltage enhance transient stability. comparison study performance between with conventional PID FLC has been done. theoretical analysis proved implementing MATLAB/SIMULINK package.The package.</p>