Development of system for controlling voltage Sags/Swells using dynamic voltage restorer

Power Quality is one of the critical issues in the power distribution system operations, nowadays. Due to implementation of complex power device, their performance becomes very sensitive with the quality of power supply. This paper demonstrates the application of a dynamic voltage restorer to resolve the quality problems of the voltage Sags/Swells which may be severe for many sensitive loads. The proposed scheme is very simple to implement. The design & simulationsare carried out using MATLAB.