Dominant Harmonic Current Reduction using Passive Power Filter

The quick growth in harmonic distortion levels generated by the usage of nonlinear loads in the system creates a big challenge. As a result of this issue, harmonic filters are required to minimize harmonic levels in accordance with IEEE-519 power quality enhancement guidelines. The goal of this research is to use a passive power harmonic filter to remove prominent current harmonics (5
^th
, 7
^th
and 11
^th
) from a 240V(rms) utility at the point of common coupling. In order to validate the performance of the proposed filter, a number of simulations are provided using the MATLAB/SIMULINK software. By connecting distinct types of non-linear loads in different phases of a three-phase supply, a harmonically unbalanced condition of source current has been generated. In addition, the simulation includes a comparison between the situation of current harmonic without filter and the situation of current harmonic with passive filter. At the end of the research, the harmonics values can be reduced until 30 to 70 percent of the values without filters condition. This study's findings demonstrate that the passive filter is a highly effective option for dominant harmonic mitigation and power quality enhancement.