Fuzzy-based controller for DVR in the presence of DG

The fuzzy logic (FL) comes as a vital and viable solution method in various engineering fields which mutates the optimal point in many engineering issues. This study presents a fuzzy-logic approach to promote the controller performance. The power system is one of the fundamental, complicated and principle systems in the world, doing so there has been several control ways to survive system stability such as dynamic voltage restorer (DVR). DVR is a power component that deals with power quality improvement and compensation of voltage sags and swells. The importance of DVR increases intensively, due to numerous counts of prohibitive sensitive loads throw power swing condition. The necessity to have a secure power supply in feeding DVR, leaned the presence of distributed generators (DG). Accordingly, the results indicate the effectiveness of the fuzzy-based adaptive PI-controllers versus a classic proportional-integral (PI) controller which has been accomplished in MATLAB/SIMULINK software.