DC Voltage Feedback Control to Active Power Filter for

Abstract

This paper presents an active harmonic filter for non linear loads using feedback control loop technology. Due to non linear loading the input ac current wave gets distorted which leads to aging effect. Inorder to reduce the effect an active power filter is used to proved the harmonic current to the source with 180 degrees phase shift. Dc voltage feedback control is used to track the harmonic percentage and to develop a pulse sequence to the inverters. The model results are carried out using matlab simulation software.

Keywords: converter, rectifier, active power filter, harmonics