Fixing a Shunt Passive Power Filter as a Harmonic Reduction Technique to Improve the System's Power Quality

Abstract

Harmonics are primarily generated by nonlinear loads, such as electrical machines, personal computers, rectification, adjustable speed drive controllers, mechanical lighting ballasts, and all kinds of power electronics devices. This study focuses on mitigating a particular harmonic, known as the third harmonic or tripled harmonic, which is frequently present in power systems and can lead to several problems, including higher losses, component overheating, and shortened equipment lifespans. The suggested mitigation method efficiently removes the unwanted frequency at the power system's point of common connection by using a passive power filter, more precisely an L-C filter. The overall goal of the study is to shed light on how well an L-C filter, a passive power filter, works in power systems to mitigate the third harmonic, enhancing power quality and lessening the damage that harmonic distortion does to electrical equipment. The initial study is carried out in the MATLAB/Simulink environment to eliminate the 3^rd harmonics by designing the filter. The L-C filter is designed and implemented to eliminate the harmonics.