Reduction of Harmonics to Improve Power Quality in Distribution Lines using a Series Active Power Filter

Abstract

Electrical devices have advanced and are employed in many different applications nowadays. Personal computers, arc furnaces, and non-linear loads like fluorescent lights emit harmonics alongside utility variable frequency drives (VFD). These are the main gadgets for power quality issues. As is well known, power quality is a significant problem for consumer and distribution systems. This study explores the harmonics induced by non-linear loads. An active power filter, which can enhance power quality and compensate for reactive power has been utilized. In the electrical system at low and medium voltage, Series Active Power Filters (SAPF) are primarily employed to reduce the harmonics, over and in compensation for voltage distortions like sags, flickers, and notches. Total harmonic distortion (THD) can be minimized by SAPF, which injects voltage into the line to mitigate the distortions.