REDUCTION OF VOLTAGE SAG USING SRF THEORY CONTROL BASED DVR FOR POWER QUALITY ENHANCEMENT.

To make developed country, recent year India shift towards the research area for the development to lead the research. The main task of power system is to supply their customer a continuity power supply at ever, but in action it's not take place; because of the whole power system is the big network which includes different types of loads, at the instant of common compiling sensitive loads connected in which voltage distortion in supply side or load side is highly repellent. Voltage dip is the most frequent arising power quality issues mainly occurs in distribution system since it main causes disturbance for domestic and industrial equipment. In this paper the simulink model of DVR for reduction of voltage sag and its control by reference frame theory algorithm has carried in MATLAB simulink to enhance the power quality issues. [ABSTRACT FROM AUTHOR]