Comparative Analysis of UPFC with PI, PID ANDPOD Controllers

Abstract

An UPFC for the FACTS devices in a multi-machine power system to damp the electromechanical oscillations. The unified power flow controller is designed based on the PI, PID and POD controllers. The amplification part of the controller is modified depends upon the power system conditions. The performance of the controllers is simulated over a wide range of operating conditions and disturbances and its robustness is proved.