Study & performance of DVR for voltage quality enhancement

Power quality problems become a major anxiety of industries due to enormous loss in terms of time and money. The power quality consists of a large number of disturbances such as voltage sags, swells, harmonics, notch, flicker, etc. There are the various methods to alleviate the power quality problems, but the FACTS devices are the most excellent solution to alleviate this problem. One of the most powerful FACTS devices is the DVR to alleviate the voltage sag and swell. This paper describes the study and performance on DVR and various compensation method of DVR which are used to mitigate the voltage sag and swell and its impact on sophisticated loads. The result is achieved by using MATLAB/Simulink. In the simulink model the In-Phase compensation technique for voltage quality improvement is used.