Design and simulation of UPFC for enhancement of power quality in transmission lines

Growth of electrical energy consumptions and increasing non-linear loads in power systems force the electrical power utilities to provide a high quality electrical power. This is the reason that this issue is getting more and more importance in power systems. This paper examines all power quality parameters based on the standard. In order to enhance the power quality, these parameters must be improved; to do so a compound compensator UPFC is designed and its performance is simulated for electrical power transmission lines. To verify the results of application of the above-mentioned method, they are compared with the corresponding results obtained by PSCAD/EMTDC software.