Performance Analysis of Single Phase Series Active Compensator using Control Algorithm based on Unit Vector Generation

A deterioration of the power quality is a major concern due to harmonics injected by the non-linearity of the consumer loads which are specially power electronic devices (Rectifier Load). A single phase Diode Bridge Rectifier (DBR) draws non-linear current thus degrading the power quality at the PCC. This paper focuses on the single phase series active compensator to alleviate the voltage and current harmonics under non-linear load condition. A DC link capacitor is shared between VSI and single phase DBR so as to reduce the component requirement and to resist the AC mains side voltage variations. The compensator behavior has been analyzed graphically with the single phase DBR as a non-linear load. To confirm the efficacy of the suggested system an extensive digital simulation has been carried out in MATLAB/Simulink environment.