Electrical Power Quality up gradation with Dynamic Voltage Restorer based on
Keywords:
Power system, power quality, FACT, DVR, IGBT, voltage sags/swells, PCC, VSI, ESRFT, MATLAB/SIMULINKAbstract
Voltage stability issue is a bigproblem ofelectrical power structure. The instability disturbed the functioning
of sensitive devices.In power distribution networks only DVRis uniqueFACTS device that is used for the solution of above
said problems. For DVR circuit ESRFT control algorithm is suggested to die out the harmonics as well as disturbances
and provide a compensated voltage at the consumer end during abnormal condition in the electrical distribution
structure. PI controller generateabase voltages feed to dynamic voltage restorerand maintained the voltage at the
consumer end by means of voltage source inverter (VSI). The fast switching strength of IGBT facilitates the application
of additional control technique to be responsible forvoltagecompensation against sag, swell and harmonics.This control
scheme design is simple comparatively. MATLAB Simulation used to determine the results.