Voltage Sag and Swell Compensation in Integrated System using Advanced UPQC

More generally, harmonics are produced when nonlinear loads are present in the system. In low and medium voltage application harmonics emissions are hazardous. In this paper, a novel UPQC is proposed for the compensation of voltage sag and voltage swell. The UPQC is handled by synchronously reference controller. The proposed approaches effectively compensated the 20% voltage sag and swell on phase A, C and 10% voltage sag and swell on phase B. The simulations are implemented in the Matlab/Simulink computer environment. The inductive UPQC maintains voltage sag and swell reduction effectively and the result demonstrates with existing methods successfully.