This research paper presents harmonics reduction using active power filter based on sinusoidal pulse width modulation technique. The
Sinusoidal Pulse Width Modulation controlled active filter is used for the enhancement of the power quality and power factor in three
phase power systems. Active power filters are widely used for the elimination of non-sinusoidal currents. The pulse width modulated
control of the active filter allows independent control of lower order harmonics for improvement of the power quality and power
factor. The active PWM rectifier acts directly on the main line currents, forcing them to be sinusoidal and in phase with the main
voltage supply. Thus the proposed method highly reduces the total harmonic distortion and enhances the power quality and power
factor of the three phase system.