Active Harmonic Filter is an electronic device usually utilized for mitigating the negative effects of harmonics in various electrical power systems. Harmonic is distortion of the normal electrical waveform, which is caused by non-linear loads like power electronics, variable frequency drives, and varied other devices. This distortion can promote to power quality issues like increased heating of equipment, reduced efficiency, and voltage fluctuations. An active harmonic filter utilizes progressive control algorithms and power electronics for detecting and filtering out harmonics in real-time, effectively decreasing the impact of the distortions on the power system. Active Harmonic Filter is utilized in many different applications like commercial, industrial, and residential settings.